Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 5-1 General Lighting Load Density ....................................................................................................................................5-5 Table 5-3 Maximum Values for Lighting Power for Roads and Ground Load Density ............................................5-6 Table 5-2 Table 5-4 Table 5-5 Table 5-6 Table 5-7 Table 5-8 Table 5-9 Table 5-10 Table 6-1 Table 6-2 Table 6-3 Table 6-4 Table 6-5 Table 6-6 Table 6-7 Table 6-8 Table 6-9 Table 8-1 Table 8-2 Table 8-3 Table 8-4 Table 8-5 Table 8-6 Maximum Values for Lighting Power for Building Exterior Load Density ..............................................5-5 Recommended Design Illuminance Levels ............................................................................................................5-6 Illuminance Levels (Average) ......................................................................................................................................5-7 Efficacy Ranges of Various Lamps .......................................................................................................................... 5-10 Recommended Room Surface Reflectance .......................................................................................................... 5-10 Control Types and Equivalent Number of Control Points ............................................................................ 5-11 Minimum Connected Receptacle Load .................................................................................................................. 5-13 Receptacle Rating for Various Size Circuits ........................................................................................................ 5-14 Overall Heat Coefficient ..................................................................................................................................................6-4 Typical Change Values ....................................................................................................................................................6-6 Sprinkler installation guidelines ................................................................................................................................6-7 Hazen Williams C values ................................................................................................................................................6-8 Equivalent Pipe Length Chart ......................................................................................................................................6-8 Recommended Basic Water Requirements for Human Needs. a ............................................................... 6-10 Flow through Schedule 40 B.I. Pipes in Liters per Minute ........................................................................... 6-10 Determination of Number of Cars ........................................................................................................................... 6-12 Average Operation Interval of Cars ........................................................................................................................ 6-12 Waste water contribution per capita / day ...........................................................................................................8-5 Minimum Requirements for Various Occupancies .............................................................................................8-6 Drainage Fixture Unit Values (DFU) ...................................................................................................................... 8-11 Discharge Capacity in Liters per Second for Intermittent Flow Only ..................................................... 8-12 Maximum Unit Loading and Maximum Length of Drainage and Vent Piping ..................................... 8-14 Cleanouts........................................................................................................................................................................... 8-18 Table 8-7 Minimum Horizontal Distance Required From Building Sewer ................................................................ 8-26 Table 8-9 Pipe Connections in Blow-off Condensers and Sumps .................................................................................. 8-31 Table 8-8 Table 8-10 Table 8-11 Table 8-12 Table 8-13 Table 8-14 Table 8-15 Maximum / Minimum Fixture Unit Loading On Building Sewer Piping ................................................ 8-27 Minimum Size Condensate Drain Pipes ................................................................................................................ 8-33 Horizontal Distance of Trap Arms .......................................................................................................................... 8-35 Grease Traps ..................................................................................................................................................................... 8-39 Caulking Ferrules ........................................................................................................................................................... 8-63 Soldering Bushings ........................................................................................................................................................ 8-63 Hanger Rod Sizes ........................................................................................................................................................... 8-64 Table 8-16 Hangers and Support .................................................................................................................................................... 8-65 Table 8-18 Capacities, Airspace and Fittings for Testing ..................................................................................................... 8-75 Table 8-17 Table 8-19 Table 8-20 Table 8-21 Disposal Fields ................................................................................................................................................................. 8-72 Location of Sewage Disposal System ..................................................................................................................... 8-77 *Capacity of Septic Tanks............................................................................................................................................ 8-78 Estimated Waste / Sewage Flow Rates ............................................................................................................... 8-79 ix Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-22 Design Criteria of Five Typical Soils ............................................................................................................................... 8-80 Table 8-23 Septic Tank Capacity Limits ............................................................................................................................................... 8-80 Table 8-24 Sizing Roof Drains, Leaders, and Vertical Rainwater Piping (METRIC) ......................................................... 8-86 Table 8-25 Sizing of Horizontal Rainwater Piping .......................................................................................................................... 8-86 Table 8-26 Sizing of Horizontal Rainwater Piping ......................................................................................................................... 8-87 Table 8-27 Sizing Of Horizontal Rainwater Piping .......................................................................................................................... 8-87 Table 8-28 Size of Gutters ............................................................................................................................................................................ 8-88 Table 8-29 Controlled Flow Maximum Roof Water Depth ........................................................................................................... 8-90 Table 8-30 Distance of Scupper Bottoms above Roof .................................................................................................................... 8-90 Table 8-31 Minimum Length of Color Field and Size of Letters ................................................................................................ 8-93 Table 8-32 Minimum Airgaps for Water Distribution 4 ................................................................................................................. 8-96 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Abbreviations Acronym Definition °C Degrees Centigrade A Ampere AC Alternating Current AFSU Amenities, Facilities, Services and Utilities AHJ Authority Having Jurisdiction ALBO Acting Local Building Official AMBF Allowable Maximum Building Footprint AMBV Allowable Maximum Volume of Building ANSI American National Standards Institute Backflow Prevention Devices, Assemblies and Methods ..................................................................................... 8-97 ATM Asynchronous Transfer Mode ATS Automatic Transfer Switches Table 8-35 Fixture Unit Table for Determining Water Pipe and Meter Sizes ................................................................... 8-114 B.P. Batas Pambansa (national law) BAS Building Automation System BHL Building Height Limit BoC Board of Consultants BoD Bureau of Design CAAP Civil Aviation Authority of the Philippines CDP Comprehensive Development Plan Table 8-41 Maximum Allowable Noise Level in General Areas .............................................................................................. 8-119 CFL Compact Fluorescent Lighting CHED Commission on Higher Education CLUP Comprehensive Land Use Plan Figure 3-1 CLWAUP Comprehensive Land, Water & Air Use Plan CLWUP Comprehensive Land and Water Use Plan CT Current Transformer DC Development Control DepEd Department of Education DG Design Guidelines DoH Department of Health DoTC Department of Transportation and Communications DPWH Department of Public Works and Highways DR Derivative Regulation DTI Department of Trade and Industry EIA Electronic Industries Alliance ELCB Earth Leakage Circuit Breaker EMI Electromagnetic Interference EMT Electrical Metallic Tubing EO Equipment Outlet ESE Early Streamer Emission EVAC Emergency Voice Alarm Communications FACP Fire Alarm and Control Panel FAR Floor Area Ratio (same as FLAR) Table 8-33 Table 8-34 Water Supply Fixture Units (WSFU) and Minimum Fixture Branch Pipe Sizes 3 ..................................... 8-112 Table 8-36 Minimum Required Air Chamber Dimensions ........................................................................................................ 8-115 Table 8-37 Flushometer Fixture Units for Wayer Sizing Using .............................................................................................. 8-116 Table 8-38 Equivalent Length of Pipe for Various Fittings1 ..................................................................................................... 8-116 Table 8-39 Allowance in Equivalent Length of Pipe for Friction Loss in Valves and Thread Fittings ................... 8-117 Table 8-40 Minimum Standards for Illumination ......................................................................................................................... 8-118 Figure 1-1 Overview of Parts of Volume 6 ......................................................................................................................................1-1 Figure 3-2 Philippine Solar and Wind Information for About 7 Months of a Year..................................................... 3-25 Figure 3-3 Figure 3-4 Figure 3-5 Figure 4-1 Figure 4-2 Figure 4-3 Figure 4-4 Figure 4-5 Figure 4-6 Figure 4-7 Figure 4-8 Figure 4-9 Figure 5-1 Figure 6-1 x Ideal and Optimum Building Orientations in the Philippines ....................................................................... 3-25 Observations on the behavior of wind inside buildings (DPWH, c:2009, unpublished) .................. 3-27 Stack Effect (DPWH, C:2009, unpublished) ............................................................................................................. 3-28 Venturi Effect (DPWH, c:2009, unpublished)......................................................................................................... 3-29 Diagrams of Lateral Earth Pressures on Retaining Wall ................................................................................. 4-32 Flowchart for Foundation Selection ......................................................................................................................... 4-40 Concentrically Loaded Footing ................................................................................................................................... 4-49 Eccentrically Loaded Footing (e ≤ L/6) .................................................................................................................. 4-50 Eccentrically Loaded Footing e > L/ 6 ..................................................................................................................... 4-51 Design Flow ......................................................................................................................................................................... 4-98 Analysis and Design Process for Beams (when analysis and design software is not available) ... 4-99 Design of Compression Member Structural Members Subjected to Compression........................... 4-100 Design of Tension Members Structure Members Subjected to Tension ............................................... 4-101 Typical Power Distribution Scheme ......................................................................................................................... 5-16 Sample Work Sheet for Mechanical Engineer ...................................................................................................... 6-14 xi Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Acronym Definition FCC Federal Communications Commission NEC National Electrical Code® FDDI Fiber Distributed Data Interface NFPA National Fire Protection Association FLAR Floor to Lot Area Ratio NHA National Housing Authority G.I. Galvanized Iron NMB Non-mobile Billboard GFA Gross Floor Area OBO Office of the Building Official GFCI Ground-Fault Circuit Interrupter OFB Outermost Face of Building GPRA Government Procurement Reform Act OLBP Outermost Limit of Building Projection HC Horizontal Cross-Connect P.D. Presidential Decree HID High Intensity Discharge PBH Provisional Building Height HLURB Housing and Land Use Regulatory Board PEZA Philippine Economic Zone Authority HPS High-Pressure Sodium PRI Primary Rate Interface HUDCC Housing and Urban Development Coordinating Council PSC Philippine Sports Commission HZ Hertz PT Potential Transformer IC Intermediate Cross-Connect PVC Polyvinyl Chloride Conduit ICAO International Civil Aviation Organization PWD Person with Disability IEC International Electro-Technical Commission R.A. Republic Act IED Intelligent Electronic Device RC Referral Code IEEE The Institute Of Electrical And Electronics Engineers RF Radio Frequency IMC Intermediate Metallic Conduit RLA Registered and Licensed Architect IRR Implementing rules and regulations RLP Registered and Licensed Professional ISDN Integrated Services Digital Network ROW Right-of-Way kV KiloVolts RROW Road Right-of-Way LAN Local Area Network RSC Rigid Steel Conduit LBO Local Building Official SARP Standard and Recommended Practices LED Light Emitting Diode ScTP Screened Twisted-Pair LEED Leadership in Energy and Environmental Design SDP Site Development Plan LGU Local Government Unit SF6 Sulfur Hexafluoride Lm Linear Meter SLD Single Line Diagram LRFD Load and Resistance Factor Design TGB Telecommunications Grounding Busbar M Meter TGFA Total Gross Floor Area m2 Meter square (Area) THHN Thermoplastic High Heat-resistant Nylon MC Main Cross-Connect TIA Telecommunications Industry Association MCB Miniature Circuit Breaker TIEZA Tourism Infrastructure and Enterprise Zone Authority MCC Motor Control Center TLA Total Lot Area MCCB Molded Case Circuit Breaker TMGB Telecommunications Main Grounding Busbar MH Metal Halide TSB Telecommunications System Bulletin MLE Mandated Legal Easement UNE Unión Nacional Española Mm Millimeter UPS Uninterruptible Power System MoS Manual of Standards UTP Unshielded Twisted-Pair MTS Manual Transfer Switch V Volts NBCP National Building Code of the Philippines VA Volt Ampere NBO National Building Official W Watt NBZ No-build Zone W/Lm Watts per Lumens NCCA National Commission on Culture and the Arts W/M2 Watts per Meter square xii Acronym Definition xiii Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Acronym Definition XLPE Cross Linked Polyethelene ZO zoning ordinance xiv Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Glossary Acronym Definition Addressable Device A fire alarm system component can be individually identified of its status or used to individually control other functions. Addressable System A fire alarm system consisting of an addressable fire alarm control panel and addressable devices that primarily gives the exact location of a fire. Alarm Indicator A device which by visual means indicates the zone which an alarm has originated. Alarm Zone A part or subdivision of a protected building or premises. Allowable Maximum Building Footprint The resultant area established at grade level upon which the proposed building/structure may be erected. Annunciator A fire alarm system component containing one or more indicator lamps or alphanumeric displays in which each indication provides status information. Architectonics The science part of architecture, unifying the architectural, structural and utility plans/designs of a building/structure. Architectural Design A development or redevelopment concept that focuses on the components or elements of a building, structure or system and unifies them into a coherent and functional whole, utilizing the principles of strength, harmony and aesthetics in arriving at a solution to a spatial problem through the deft application of the arts and sciences, according to a particular approach, to achieve the development/redevelopment objective/s under the given constraints/limitations. As-Built Plan A scaled drawing that shows a project and infrastructure components after completion of construction Attention Signal (alias Preliminary Noise or Instruction Signal) Tone or ringing-style short signal before an announcement. Bore Hole A hole drilled in the ground to obtain samples for subsoil investigation. Building A roofed and walled structure built for permanent use. Closed Circuit Television(CCTV) A video system in which signals are not publicly distributed and monitored for surveillance, security and monitoring purposes. Compression When a body is subjected to a force or forces acting towards it causing it to squeeze, shorten or crush. Concrete A mixture of cement, fine aggregate, coarse aggregate and water. Cross Section (alias Cross Section Plan) View generated by slicing an object at an angle perpendicular to its longer axis. Dead Load An inert, inactive load such as the weight of the members, the supported structure and permanent attachment or accessories in bridges. Design Life Period assumed in the design for which the infrastructure is required to perform its function without replacement or major structural repair. Differential Settlement The vertical displacement due to settlement of one point in a foundation with respect to another point of the foundation. Dispersal Area (Safe) An area which will accommodate a number of persons equal to the total capacity of the stand and building/structure it serves, in such a manner that no person within the area need be closer than fifteen meters (15.0 m) from the stand or building/structure. Dispersal areas shall be based upon the area of not less than 0.28 m2 per person. Domestic sewage Comprise of Industrial wastewater, Recycled water, Reclaimed water and Reuse water. Ductility Ability of a component or solid material to deform under tensile stress. Factor of Safety The ratio of a limiting value of a quantity or quality to the design value of that quantity or quality. Acoustic Feedback Feedback of the output signal of an amplifying system on the input of the system depending on the difference in the intensity and phasing between the input and output signal. Flange Angles Angles used in riveted plate girders to carry tensile or compressive forces induced by bending. Flexure A deformation or behavior of an elastic structural element subjected to an external load perpendicular to the axis of the element. Footprint The surface area of a building where it meets the natural ground or the finished grade i.e. the outer perimeter of a building. xv Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Force A push or a pull in a given direction on a body that changes or tends to change its state or rest. (or its state of motion). Foundation A component of an engineered structure that transmits the structure's forces into the soil or rock that supports it Friction Pile A pile which derives its supports principally from the surrounding soil through which it is placed by the development of shearing resistance between the soil and the pile. Geomembrane Very low permeability synthetic membrane liner of barrier used with any geotechnical engineering related material so as to control fluid (or gas) migration in a human-made project, structure, or system. Green Architecture Architecture in which the plan/design is focused on making a building energy-efficient, so as to reduce its energy consumption, water consumption, operating costs and environmental impact Green Roof (alias Eco Roof, Living Roof, Vegetated Roof) A roof that is either partially or completely covered in vegetation and built on top of a man-made roof, deck roof, deck or other support structure Green Wall (alias Biowalls, Ecowalls, Vertical Gardens) A wall or similar vertical support/element that may be either free-standing or attached to an existing wall, and that may be partially, substantially or fully covered with vegetative cover. Isolated Footing A footing designed to support a structural load from a single column. Usually a shallow foundation, and square or circular in shape Land-use Map Maps that reflect the land resources and types of land use in the national economy. Longitudinal Section View generated by slicing an object at an angle parallel to its longer axis Physical Planning The activities pertaining to the preparation of a physical layout of land or property on which vertical structures such as buildings and/or structures and horizontal developments are proposed. Pile A slender member that is driven (hammered), drilled or jetted into the ground. Piles are usually constructed of timber, steel or pre-stressed reinforced concrete. Point Bearing Piles (alias End Bearing Piles) A pile placed or driven on or into a material which is capable of developing the pile load by directly resting on a bearing stratum with a reasonable factor of safety. Post Tensioning The system of prestressing whereby tendons are stressed after the concrete has attained the required strength and the prestressing forces are transmitted to the concrete generally by anchoring the stressed tendons to the members. Precast Concrete A structural member specially of concrete that has been cast into form either in a permanent plant or somewhere near the site of construction before being transported to the site of installation and finally erected at its final location. Prestressed Concrete Concrete reinforced with strands, pretensioned or post tensioned, wherein the effective internal stresses are induced deliberately by forces caused by tensioned steel or other means to give an active resistance to loads. Pretensioning The system of prestressing concrete members whereby wires or strands called tendons are stressed to a predetermined amount by stretching them between anchorages prior to pouring of concrete. Reinforced Concrete A composite material which utilizes the concrete in resisting compression forces and some other materials, usually steel bars or wires, to resist the tension forces. Retaining Wall A structure usually made of stone masonry, concrete or reinforced concrete that provides lateral support for a mass of soil. Seismic Retrofitting Modification of existing structures to make them more resistant to seismic activity, ground motion or soil failures due to earthquake. Settlement The downward movement of soil, or the downward movement of a foundation. Shear Connector A welded stud, spiral bar short length steel element that resists shear between components of a composite beam. Sheet Piles A long vertical earth retention and excavation support, steel, vinyl or reinforced concrete, driven into the ground with interlocking edges to form a continuous wall to resist water or earth pressure. Spread Footings Also, isolated footing. A footing designed to support a structural load from a single column. Usually a shallow foundation, and square or circular in shape. Stirrups (alias Ties) Lateral reinforcement formed of individual units, open or closed or continuously wound reinforcement. Structural Foundation Foundation of a structure which generally serves to transfer the loads from the structure to underlying materials (such as soil or rock) which are known as the foundation material. xvi Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Sustainable Design The philosophy of designing physical objects, the built environment and services to substantially comply with the principles of economic, social and ecological sustainability, without compromising natural and other resources that must be bequeathed to future generations Sway Bracing Secondary structural members spanning between the trusses at interior panel points and provide lateral stability and shear transfer between trusses. Topographic Survey (alias Ground Survey) Collection of data to represent horizontal and vertical positions of an area, including features such as roads, bridges and bodies of water with contours, elevations and coordinates. xvii Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures For clarity, GFAs or TGFAs generated below grade (or sidewalk surface) level i.e. basement or lower ground levels, are not to be counted as part of either the GFA or TGFA, which are essentially floor areas generated above grade (or sidewalk surface) level. Apply prescribed setbacks and yards/court to determine AMBF. TGFA/AMBF = provisional building height or PBH (for direct comparison with the applicable BHL); whichever shall result in the lower number of floors/levels applies i.e. the most stringent rule always applies. For clarity, building height classification in relation to the BHL for buildings shall be as follows: Table 3-2 Conversion Table of Gross Floor Area (GFA) to Total Gross Floor Area (TGFA), 2004 Revised IRR of P.D. No. 1096 Excluded Floor Areas (non-GFA) as a Percentage (%) of the TGFA Multiplier to Convert the GFA to TGFA Residential 1 33% 1.50 Residential 2 (Basic), Residential 3 (Basic) and Residential 4 20% 1.25 Residential 2 (Maximum), Residential 3 (Maximum) and Residential 5 16% 1.20 Commercial 1 20% 1.25 Commercial 2 25% 1.33 Commercial 3 33% 1.50 Industrial 1 25% 1.33 Industrial 2 and 3 33% 1.50 Transportation, Utility and Service Areas 33% 1.50 Agricultural and Agro-Industrial 2%-5% 1.03-1.06 Type of Building/Structure based on Use/Occupancy A low-rise building/structure shall be from one (1) to five (5) storeys i.e. from 3.0 m (m) to 12.0 m plus 1.0m for a parapet wall (if provided with deck roof), collectively reckoned from grade (or sidewalk surface) level, including mezzanine level, in the case of non-residential buildings/structures; and from one (1) to five (5) storeys i.e. from 3.0 m (m) to 15.0 m plus 1.0m for a parapet wall (if provided with deck roof), collectively reckoned from grade (or sidewalk surface) level, including mezzanine level, in the case of residential buildings/structures; low-rise buildings may or may not be provided with an elevator but must satisfy the basic accessibility requirements; A medium-rise building/structure shall be from six (6) to fifteen (15) storeys i.e. from 15.0 m (m) to 45.0m plus 1.0m for a parapet wall (if provided with deck roof), collectively reckoned from grade (or sidewalk surface) level, including mezzanine level, in the case of non-residential buildings/structures; and from six (6) to fifteen (15) storeys i.e. from 18.0 m (m) to 45.0 m plus 1.0 m for a parapet wall (if provided with deck roof), collectively reckoned from grade (or sidewalk surface) level, including mezzanine level, in the case of residential buildings/structures; medium-rise buildings must be provided with an elevator and must satisfy the basic accessibility requirements; and 3-5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Is there an alternate disaster plan for the disposal of sewerage? Communication Are equipment securely anchored and protected? Are there alternate means of communication when systems fail? Are computers latched onto uninterruptible power supply (UPS)? Is there a facility for obtaining a mobile emergency generator? Furniture, Fixtures and Equipment Anchorage (especially crucial for hospital designs) Are the following equipment securely braced? - Storage equipment: filing cabinets, shelving, etc. - Table- and floor-mounted equipment 3.5.2 3.5.3 Are there surgical fixtures? Are there imaging equipment? Is there a gas system? What are the other essential equipment? Are there fire alarm and fire-fighting equipment? Compliance with R.A. No. 9514, the 2008 Fire Code of the Philippines (FCP) and its 2009 or latest IRR Area of Rescue Assistance (ARA): an area, which has direct access to an exit, where people who are unable to use the stairs or elevators may remain temporarily in safety, to await further instructions or assistance Materials Selections: fire-related materials must be given priority; flamespread must be checked at various critical points Firefighting facilities/preparedness: planning and deducing must consciously consider the installation of fire-fighting equipment as an integral factor Provision for gas masks, fire-resistant jackets, boots, helmets, etc. 3.5.4 Emergency water supply Wind direction and other topographical factors like loose soil, loose rock anchorage that may be exacerbated by heavy rainfall shall be dealt with dispatch Secure installations of electrical and emergency electrical power system Design and layout of windows, doors and other openings Location of garage and emergency equipment must allow for quick access and use Community facilities must be securely braced and protected Emergency water supply (for 2-3 days) Life-saving equipment securely located and anchored Bracing and trimming of big trees (especially those with shallow root systems like acacia, mango, etc.) and structures that pose danger to life Non-mobile billboards shall follow standards set under the 2008 DPWH Additional Rules and Regulations (ARR) supplementing Rule XX of the NBCP. LGUs can enact ordinances that are more stringent than the ARR and Rule XX of the NBCP but cannot relax the same. LGU shall provide the appropriate equipment like chainsaws and other earthmoving and transport equipment. Floods Mitigation Checklist Availability of recent secondary hydrologic information to ascertain flood levels for physical planning at a community level Site analysis and site development must seriously consider the site’s history and experience with floods Provisions for emergency evacuation All of the Typhoon Mitigation Checklist Prepare map for flood-prone areas. (DPWH, c.2009, unpublished); refer also to DG Volume 3 Floor levels for buildings should be located above the flood level along with a suitable freeboard, as determined based on Volume 3. The appropriate design flood to be adopted for different types of buildings is provided in Table 3-3. The following should also apply: Provision of life safety harness system Typhoon Mitigation Checklist 3-8 Are there storage tanks (for liquid oxygen and hot water)? Fire Mitigation Checklist - Ceiling-mounted equipment: ceiling fans, lighting fixtures, etc. Choice of materials like glass and other non-masonry/non-metal exterior finishing that can withstand high wind pressure must be specified If basement parking is to be adopted, then all entries and openings to the basement should be above the design flood level noted in Table 3-3. A secondary evacuation route, such as a stairwell, should be provided that provides access to a level above the design flood level. All electrical and related services should be above the design flood level, or flood proofed above the flood level. Where inundation is expected to occur for more than a few hours, then provisions should be provided for appropriate evacuation. 3-9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The hawker’s plaza and ‘bagsakan’ (wholesale) area are places near the semi-wet and dry sections for the convenience of both vendors and delivery vans, most of which supply dry goods such as groceries and sari-sari items (different/wide variety of goods). It is recommended that the hawker’s plaza should not exceed 60% of the size of the market core, except for those markets which may have only one or two market days per week. The ‘bagsakan’ (wholesale) area is computed at around 10–13% of the total built-up area. Market Stalls and Aisles A public market basically consists of stalls and aisles. A stall is the most important element of the market. In detailed design, great care must be exercised in analyzing the needs of vendors, particularly in the case of the wet stalls. The required stall area for a market must be about 60% of the total floor area. The circulation area, which is the aisle, is 35% and the offices, toilets and utility room at 5% of the total floor area. The stalls are designed with high flexibility to make them functional even if the original intention is changed. For planning purposes, the average sizes of the different market stalls may be assumed at 2–4 m2 per stall for vegetable, fruits, meat and dried fish, 5–9 m2 per stall for shops and sari-sari (general) store and 15–18 m2 for carinderia (eatery) and cereals. For purposes of preliminary programming, the following illustrate the above applications: Wet Market Stalls 1.7 m x 2.25 m or 3.8 m2 – for meat/fish and vegetables 1.7 m x 2.25 m or 3.8 m2 – for fruits and vegetables Dry Market Stalls 3.4 m x 4.5 m or 15.30 m2 –for cereals and carinderia(eatery) 2.25 m x 3.41 m or 7.67 m2 –for shops and sari-sari (General Store) 2.27 m x 4.49 m or 10.19 m2 – garments Recommended stall sizes should be matched with existing stall sizes and should be related to the market vendor analysis. Any deviations from the recommended stall sizes should be done in increments/multiples of 1.44m2 (1.2 m x 1.2 m) or even fractions (1/2”, 1/4”, 1/8”, 1/16”). For two storey market buildings, the dry markets stalls shall be situated at the upper level. The counter aisle should be at 1.5 – 2.0 m wide while the primary and secondary entry aisles may be assumed at 2.0 – 3.5 m wide. The proposed dry section market stalls shall have a secure ceiling e.g. wire mesh, cyclone wire or similar material, to be installed directly above or below the ceiling material 3-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 3.8.3 3.8.4 3.8.5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures School Building Design Particulars Refer to pertinent DepEd standards/ guidelines or to applicable DPWH standards (duly approved by the DepEd) and to Annex C. Maximum Space Requirements (m2) Assistant Secretary 56.00 Staff 4.00 – 6.00/pax2 Conference Room 30.00 Such as small airport/port passenger terminal buildings. Refer to pertinent DoTC standards/guidelines (if available) and to Annex C. Reception Room 20.00 Toilet/Bathroom 6.00 Pantry 10.00 Storage Area 10.00 Table 3-6 provides the recommended standards for use as a reference in the space planning of typical high density non-residential buildings such as offices. Office of the Director Design of Other Key Structures Design of Government Offices Table 3-6 Space Allocation Standards for Typical Office Spaces (GFA) Particulars Maximum Space Requirements (m2) Main Lobby 0.25/pax; minimum for lobby as waiting/standing room is 0.28 Conference Room 1.20/pax including aisles and demonstration space Training Room 2.40/pax including aisles and services such as storage, production room and toilet for the staff Director IV 36.00 Staff 4.00 – 6.00/pax2 Conference Room 25.00 Reception Room 10.00 Toilet/Bathroom 4.00 Pantry 5.00 Storage Area 6.00 Office of the Assistant Director Director III 24.00 Staff 4.00 – 6.00/pax2 1.50 per one water closet (WC) enclosure Toilet/Bathroom 4.00 For Agencies providing frontline services (for Public use) 1 WC/1 – 100 for female 1 WC/1 – 200 for male 1 urinal/1 – 100 for male 1 lavatory/2 WC 1 For Agencies with no clientele (for Employee use) 1 WC/1 – 15 for male and female 2 WC/16 – 35 for male and female 3 WC/36 – 55 for male and female 1 lavatory/40 for male and female; or 1 lavatory/2 WC Toilet Facilities 1 Based on the Revised National Plumbing Code of the Philippines (R.A. 1378) Includes circulatory area 2 Division-Level Unit Division Chief 12.00 Staff 4.00 – 6.00/pax2 Includes circulation area 2 Space Requirement/s of Key Officials Office of the Secretary Secretary 72.00 Staff 4.00 – 6.00/pax2 Conference Room 60.00 Reception Room 30.00 Toilet/Bathroom 6.00 Pantry 10.00 Storage Area 10.00 Office of the Undersecretary The equivalent space allocations for officers at national government agencies/GOCCs, such as Secretary, Undersecretary and Assistant Secretary shall apply for all affected public buildings (refer Table 3-6). Other applicable space planning standards for other Philippine buildings i.e. standards that are not found in the NBCP, are as follows: Undersecretary 63.00 Staff 4.00 – 6.00/pax2 Conference Room 40.00 Reception Room 20.00 Toilet/Bathroom 6.00 Pantry 10.00 Storage Area 10.00 Office of the Assistant Secretary 3-20 The same reference standards places open plan areas at offices at 80%, with enclosed office areas at 20%. Hospitals and health care facilities c/o the DoH Primary and secondary school buildings c/o the DepEd Tertiary school buildings c/o the CHED Markets c/o the DTI and/or the HLURB and HUDCC Industrial buildings c/o the PEZA Tourism facilities c/o the TIEZA Recreational facilities c/o the HLURB and HUDCC 3-21 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 3.11.3 3.11.4 pipes/tubings/drains connected to NON-CAPITAL EQUIPMENT and plumbing/electrical/electronic/ mechanical fixtures and the like; and other decorative accessories such as curtains, drapes, blinds, shades and carpets/carpet tiles, paintings, wall hangings, sculpture (large/medium/small), and decorative/accent lighting devices, with complete fittings and accessories, and the like. Fixtures These are pieces of equipment or furniture that is fixed in position in a building or vehicle; articles attached to a building or land and considered legally part of it so that such items normally remain in place even when the building owner moves out; something securely fixed in place or attached as a permanent appendage, apparatus, or appliance e.g. plumbing fixtures; the possible examples of fixtures in a typical Philippine building/grounds include the following: visible, remoteoperated and/or tangible/operational devices or provisions that are fixed in position in (such as permanently attached to) a building and which partake of finishing items, such as plumbing fixtures (water closets, urinals, lavatories, water fountains, etc.), electrical fixtures (general and task lighting, area lighting for grounds, exterior building lighting including up-lighting or down-lighting, indoor and outdoor switches/manual controls and convenience outlets, etc.), electronic fixtures (indoor and outdoor/rooftop cameras, speakers, sensors, monitors, cardaccess or biometric access terminals for secure areas, automated main gates and doors, etc.), mechanical and related auxiliary fixtures (sprinkler heads, indoor climate management or control terminals/stations/switches, etc.), and the like; and architectural fixtures such as large fixed/sectional mirrors, finish hardware items, wall (or floor) safes and the like. Equipment These are the necessary items for a particular purpose or activity; equipment (solid state), apparatus, gear, material (i.e. the aggregate of portable/transportable/self-propelled equipment and/or supplies used by a specific organization, such as the military or para-military or the government), outfit, paraphernalia and the like; materials needed for a purpose such as laboratory apparatus; all the fixed assets other than land and buildings of a business enterprise; tangible property (other than land or buildings) that is used in the operation of a business; examples of equipment include devices, machines, tools, and vehicles; the possible examples of equipment in a typical Philippine building are: visible and tangible/operable apparatus, gear, materiel (transportable equipment), outfit, paraphernalia, tools relating to architectural, structural, electrical, electronic and auxiliary (telecommunications/audio/video/building management system/BMS), mechanical, sanitary, plumbing, fire-fighting functions/operations of the building e.g. integrated computer systems including peripherals, ticketing system including cash registers and official receipt or trip ticket printers, point of sale (POS) reporting system (as applicable, possibly for both ticketing/parking and commercial leased spaces), public information/notification/address systems 3-33 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 3.12.1 Sites/Grounds 3.12.2 Land and site sustainability considerations during construction activities such as plans and documentation needed for site excavation, sedimentation and erosion control, air pollution control, etc. Use of organic soil treatment products. Minimization of over-paving through the requisite compliances with valid and subsisting laws, rules, regulations, guidelines, standards and procedural manuals pertaining to physical planning e.g. NBCP, Water Code, Sanitation Code, etc. (refer also to pertinent portions of Annex E). Management of shadows cast by the proposed buildings on adjacent lots and buildings/structures. Miscellaneous considerations i.e. rainfall information and hydrologic (and flooding) characteristics of the site including flood risk assessment mitigation studies (if available); public passage-ways such as secure pathwalks and bicycle lanes and bicycle parking plan (if provided); community connectivity (amenities, facilities, services and utilities/AFSU); waiting sheds and other key street furniture; vehicle use, maneuver and parking plans (open, semi-covered and covered); landscaping plans (hard and soft scapes); green roofs and heat insulated areas. Buildings/Structures Energy conservation and management i.e. compliances with the latest Department of Energy (DoE) guidelines on energy conservation and management i.e. lighting and power design, etc.; use of light-emitting diodes (LEDs), compact fluorescent lamps (CFLs) and similar energy-saving illumination devices (provided the proper disposal methods are also in place), etc.; extensive use of natural lighting and ventilation matched with the use of sun-shading devices; use of renewable (non-fossil) energy sources where applicable i.e. sun, wind, wave, current, hydro, dendro (forest products), hot springs, animal, biogas/compost, solid waste, etc. Water conservation and management i.e. reduction or optimization of domestic water consumption such as use of low-flow plumbing/sanitary fixtures and equipment, etc., domestic wastewater reuse or recycling; storm water management and rainwater harvesting such as collection, storage, treatment, use, reuse, recycling, disposal, etc., wastewater treatment such as use of compact/ compartmentalized sewage treatment devices or sewage treatment plants (STPs), etc. Solid waste management i.e. waste management plan; material recovery/ segregation facility (MRF/MSF); use of ‘non-burn’ waste to energy (WTE) or waste to worth (WTW) technologies that utilize local and foreign advanced technologies compliant with the PH Clean Air Act of 1999. Indoor environment quality considerations e.g. non-smoking areas; minimization of emitted volatile organic compounds (VOCs) by materials specified for the building/structure/project; air-conditioning refrigerant 3-35 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 3.13.1 Sites/Grounds 3.13.2 Less paving around the building to help retard surface water flow i.e. through percolation into the ground, inasmuch as the collected surface water contribute to flash flooding at lower elevations within a community. Proper setbacks and compliance with mandated legal easements (MLEs) along waterways to maintain floodwater at a low level such as narrower waterways translate into higher flood levels. Buildings/Structures Use of concrete deck roofs instead of sloped metal roofs. If the use of metal roofs cannot be avoided, provide much steeper roof slopes (because flatter slopes are easily penetrated by strong winds such as wind drag). Use of roof that is sloped at all four (4) sides (since typhoon winds come from all directions). Use of green roofs (only when technically and financially feasible). Use of very short eaves i.e. the roof extension outside the exterior wall of the building or residence, usually provided for shade and aesthetics (inasmuch as long eaves cause uplift which open up the roof cavity to more/extensive wind damage); the short eaves could be paired with media agua (shed roofs) over windows and doors; short eaves are those that are 610 mm or shorter as measured from the finished building wall while the long eaves are those that extend as much as 2.44 m or longer from the finished building wall (and which may already require additional structural support); the minimum eaves shall be at 300 mm while the maximum eaves can be as much as 3.66 m (with or without additional structural supports), provided that the appropriate climate change adaptive and disaster reduction considerations are all factored into the design. Use of gutterless roofs in sites where trees shed a large volume of leaves i.e. dry and decomposed leaves and debris clog up the drains, downspouts and catch basins and the accumulated water cause the un-drained roof to collapse; a gutterless roof has to be partnered with a trench drain, sand pit or a sand and gravel bed at the ground below to absorb the falling water. Controlled roof cavity and/or ceiling cavity openings to relieve or equalize pressure inside and outside the building during strong winds i.e. a certain amount of wind has to be let in the building/structure to relieve and/or equalize air pressures. For flood-prone or flood-risk areas, the use of the lower level as a multi-use, flexible use space (that can be flooded), and which can be connected to the upper level/s of the building through stairs or ramps (for use by PWDs or large domesticated/farm animals). Use of stilted or floating building technologies, if technically and financially feasible, if safe and if locally available. 3-37 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Tall buildings shall be provided with safe refuge zones or floors for evacuating building occupants; these areas shall have stronger structural reinforcement and fire protection features if compared with regular floors. All emergency, exit and public doors servicing rooms or areas with users numbering twelve or more occupants must all swing outward and use nondetachable pins for added safety; if 2 exits are located in an enclosed space, these must be located far apart and at opposite sides of such space. All fire lanes and emergency/fire exits, passageway and stairs shall be maintained free of all forms of obstructions and fitted with emergency lighting devices all the way to the refuge floors and/or the street below. Location of emergency exits shall be far apart and/or opposite of each other and in full accordance with prescriptions of the NBCP and the Fire Code. Avoidance of use of non-fire rated substances and materials for buildings, particularly those that produce toxic or harmful fumes during fire e.g. polyvinyl chloride (PVC) doors and jambs, etc. Use of medium-weight movable materials as furniture pieces i.e. those that can readily serve as sturdy flotation devices. Elevated floor finish line (FFL) at say 0.60 m minimum above sidewalk level for carports and for main entrances for low-rise structures e.g. .residences in known flood risk areas. Refer to Section 3.5.4 for flood levels for buildings. Positioning of convenience outlets above table surface height i.e. say about 850 mm above the finished floor line (FFL) Possible positioning of the main power panel at a reachable height just below the finished ceiling line (FCL) i.e. at a maximum height of 300 mm below the finished ceiling line (FCL) and at a minimum eye level (or pix) height of 1400 mm above the finished floor line (FFL). Use of jalousie windows, which are designed for use in the tropics, and which could serve as a fast means of escape (but requires security provisions such grillwork or similar devices). A fast emergency escape system using maintenance gondolas or possibly even zip lines mounted on roofs of tall buildings directed at refuge floors/levels of adjoining tall buildings or open refuge areas may need to be devised. Design of low-rise buildings for survivability i.e. controlled detachment of a designated survival room/pod from the main building/structure for purposes of flotation or similar survival action/procedures. Use of low-cost to optimum-cost devices or technologies than can readily convert seawater, brackish water, inland waterway water, wastewater, etc. into domestic water fit for cooking and drinking (potable water) i.e. solely with the use of renewable energy i.e. sun or wind to power the conversion process. Use of stilted or floating building technologies, if technically and financially feasible, if safe and if locally available. 3-39 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures valid and subsisting law that is implemented and enforced by DPWH and its agents. The NBCP has apparently been breached and violated at will over the last 36 years of its existence, resulting in the present pitiful state of the built environment. An architectural permit application must be accompanied by the pertinent architectural documents, together with computations that must be signed and sealed only by registered and licensed Architects (RLAs), in full compliance with law (Section 20.5 of RA No. 9266, The Architecture Act of 2004). Such architectural computations must contain basic spatial and volumetric information about the proposed new building/fit-out or repair/renovation/rehabilitation/expansion/retrofit project such as those mandated under Rules VII and VIII (as well as Rule XII) of the 2004 Revised IRR of the NBCP, to wit: 3-42 Zoning classification with statements of principal, accessory and conditional uses Allowed building occupancy and building type Lot type, configuration and access systems RROW width (stating arcade width if applicable) and TLA On-site and off-site analyses, with particular attention to topography, slopes, hazards, etc. Building and site/grounds orientations with respect to sun, wind, rain/storm, noise, pollution sources, odors, view corridors (and privacy satisfaction) Treatment of the mandated legal easements (MLE) FLAR (FAR), GFA &TGFA Applicable setbacks (including incremental setbacks) Firewall compliances (as needed) Basement level compliances (as applicable) Open and covered parking compliances (including public transportation connectivity) PSO and AMBF including clear indications of the total open space within lot (TOSL) and the unpaved surface area (USA) that shall assist in surface water flow retardation and percolation into the aquifer Applicable BHL (including CAAP restrictions or other agency restrictions as applicable) AMVB OFB, OLBP and the angle of angular plane with respect to the RROW The architectural and space programs Wall/window orientations and wall to window ratio (WWR) Site development (including urban design) features Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Use of natural light and ventilation, particularly of day-lighting and passive cooling Elevator traffic calculations and zoning (as applicable) Building and site/grounds colors and textures, particularly those that are absorptive and reflective of light and heat (that should illustrate the RLA’s appreciation of tropical design as the same applies to Philippine buildings) Graphics, signage and way-finding provisions Design sensitivities i.e. gender and development (GAD), children and the elderly, persons with disabilities (PWDs, physical, mental, emotional, etc.), ethnicity and indigenous peoples, people with differing lifestyles/preferences, religion, etc. The foregoing are only basic architectural plan and design features of the building. Should the DPWH IRR on sustainable building design be promulgated, the RLA shall also be responsible for a number of sustainable building features, as well as features that address issues and concerns pertaining to climate change adaptation and disaster resilience. The RLA's description of the proposed building’s sustainable design features must necessarily include descriptions of the embodied energy levels of construction and finishing materials proposed for use in the building, carbon footprint calculation for the building and its users over a certain period of time, energy and water conservation features (to include rainwater harvesting if possible), solid waste management provisions (collection, storage, recycling, reuse, disposal), etc. The architectural permit application must clearly show that the building fully satisfies all the spatial requirements and all the applicable development controls (DCs). To be sure that only RLAs shall be responsible for architectural permits and their support documents, the author (signatory) of the architectural permit application support documents or his/her duly designated representative should be present (or available through electronic means) to defend the contents of the documents when the same are reviewed by RLAs who should also be the ones in charge of the architectural divisions of LGU OBOs i.e. full compliance with Section 35 of R.A. No. 9266 (The Architecture Act of 2004). The architectural permit application must also show the calculations for architectural life safety code compliances, particularly those mandated under R.A. No. 9514 (The 2008 Fire Code of the Philippines/FCP and its 2009 IRR). Also for inclusion is the satisfaction of the mandated compliances with B.P. Blg. 344 (Accessibility Law of 1983) particularly with respect to parking slots, ramps, elevators and toilets for persons with disabilities (PWDs). Additionally, the pertinent information on architectural design features that address specific user needs and sensitivities must be included e.g. gender, age, ethnicity, religion, etc. as well as urban design features e.g. including lists of street furniture, way-finding provisions and directional signages as well as statements of the proposed treatments of transitional spaces between the public domain (e.g. RROW) and the building grounds and enclosed building spaces. 3-43 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.2.3 Gravity Loads This section shall apply to designing the gravity loads as specified in NSCP Section 204 – Section 205. 4.2.4 4.2.5 Gravity loads are the weights of structural, non-structural elements, and expected weight of occupants that is applied to structures as downward forces. Dead Load Dead loads consist of the permanent weights and include the weight of columns, beams and girders, floor slab, roofing, walls, windows, plumbing, electrical fixtures, finishes and fixed equipment. The minimum densities for design loads from materials are shown in Table 4-1. The minimum values for dead loads in lowrise buildings are shown in Table 4-2. Live Load Live load is determined by the function and occupancy of the building. Loads include the weights of temporarily placed items on the structure such as furnishings, human occupants and construction and maintenance activities. The standards in designing the live load of a building are provided in NSCP Section 205. All loads shall be the maximum loads expected by the intended use or occupancy and not be less than the loads required by this section. Live loads are provided in Tables 4-3, 4-4 and 4-5. 4-3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-3 Minimum Uniform and Concentrated Live Loads Use or Occupancy Use or Occupancy Uniform Load 1 Concentrated Load Category Category Description kPa kN 1. Access floor systems Office use 2.4 9.0 20. Sidewalks and driveways Computer use 4.8 9.02 21. Storage -- 7.2 0 Fixed seats 2.9 0 Movable seats 4.8 0 Lobbies and platforms 4.8 0 23. Pedestrian bridges and walkways Source: NSCP, 2010. 2. Armories 3. Theaters, assembly areas3 and auditoriums 2 22. Stores Stages areas 7.2 0 4. Bowling alleys, poolrooms and similar recreational areas -- 3.6 0 5. Catwalk for maintenance access -- 1.9 1.3 6. Cornices and marquees -- 4 3.6 0 7. Dining rooms and restaurants -- 4.8 0 5 8. Exit facilities5 -- 4.8 06 6 General storage and/or repair 4.8 -- Private or pleasure-type motor vehicle storage 1.9 --7 Wards and rooms 1.9 4.52 Laboratories & operating rooms 2.9 4.5 Corridors above ground floor 3.8 4.5 Reading rooms 2.9 4.52 Stack rooms 7.2 4.52 Corridors above ground floor 3.8 4.5 Light 6.0 9.02 Heavy 12.0 13.42 Call Centers & BPO 2.9 9.0 Lobbies & ground floor corridors 4.8 9.0 Offices 2.4 9.02 Building corridors above ground floor 3.8 9.0 Press rooms 7.2 11.02 Composing and linotype rooms 4.8 9.02 Basic floor area 1.9 06 Exterior balconies 2.94 0 Decks 1.9 0 9. Garages 10. Hospitals 11. Libraries 12. Manufacturing 13. Office 14. Printing plants 15. Residential8 4 1 3 7 7 2 Storage 1.9 0 -- -- -- 17. Reviewing stands, grandstands, Bleachers, and folding and telescoping seating -- 4.8 0 Same as area served or Occupancy -- -- Classrooms 1.9 4.52 Corridors above ground floor 3.8 4.5 19. Schools 2 4 16. Restrooms9 18. Roof decks 4-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 8 9 Uniform Load1 Concentrated Load Description kPa kN Ground floor corridors 4.8 4.5 Public access 12.0 --7 Light 6.0 -- Heavy 12.0 -- Retail 4.8 4.52 Wholesale 6.0 13.42 -- 4.8 -- Notes for Table 4-3 See NSCP Section 205.5 for live load reductions See NSCP Section 205.3.3, first paragraph, for area of load application. Assembly areas include such occupancies as dance halls, drill rooms, gymnasiums, playgrounds, plazas, terraces and similar occupancies that are generally accessible to the public. For special-purpose roofs, see NSCP Section 205.4.4. Exit facilities shall include such uses as corridors serving an occupant load of 10 or more persons, exterior exit balconies, stairways, fire escapes Individual stair treads shall be designed to support a 1.3 kN concentrated load placed in a position that would cause maximum stress. Stair stringers may be designed for the uniform load set forth in the table See NSCP Section 205.3.3, second paragraph, for concentrated loads. See Table 4-4 for vehicle barriers Residential occupancies include private dwellings, apartments and hotel guest rooms. Restroom loads shall not be less than the load for the occupancy with which they are associated, but need not exceed 2.4 kPa. 4-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Vertical members of storage racks shall be protected from impact forces of operating equipment, or racks shall be designed so that failure of one vertical member will not cause collapse of more than the bay or bays supported by that member. 12 The 1.1 kN load is to be applied to any single fire sprinkler support point but not simultaneously to all support joints. Special Loads1 Use or Occupancy Category Vertical Load Lateral Load kPa kPa 1. Construction, public access at site (live load) Walkway 7.2 - Canopy 7.2 - 2. Grandstands, reviewing, stands bleachers, and folding and telescoping seating (live load) Seats and footboards 1.75 See Note 3 3. Stage accessories (live load) 4. Ceiling framing (live load) 5. Partitions and interior walls Description 11 Table 4-5 METHOD 2 METHOD 1 Tributary Area (m ) 2 Catwalks 1.9 - Follow spot, projection and control rooms 2.4 - Over stages 1.0 - All uses except over stages 0.54 - - 6. Elevators and dumbwaiters (dead and live loads) ROOF SLOPE 0 to 20 20 to 60 Over 60 Uniform Load2 (kPa) Rate of reduction, r Maximum Reduction R (percentage) Uniform Load (kPa) 1. Flat or rise less than 4 units vertical in 12 units horizontal (33.3% slope). Arch and dome with rise less than one-eighth of span 1.00 0.75 0.60 1.00 0.08 40 2. Rise 4 units vertical to less than 12 units vertical in 12 units horizontal (33.3% to less than 100% slope). Arch and dome with rise one-eighths of span 0.75 0.70 0.60 0.75 0.06 25 No reduction permitted 3 - 0.25 2× total loads - 7. Cranes (dead and live loads) Total load including impact increase 1.25 x total load5 0.10× total load6 8. Balcony railings and guardrails Exit facilities serving an occupant load greater than 50 - 0.75 kN/m7 3. Rise 12 units vertical in 12 units horizontal (100% slope) and greater. Arch or dome with rise three-eighth of span or greater 0.60 0.60 0.60 0.60 Other than exit facilities - 0.30 kN/m7 4. Awnings except cloth covered.4 0.25 0.25 0.25 0.25 Components - 1.2 0.50 0.50 0.50 0.50 - - 27 kN 5. Greenhouses, lath houses and agricultural buildings.5 See Note 10 See Note 10 Total loads11 See NSCP Table 208-12 1.1 kN plus weight of water-filled pipe12 See NSCP Table 208-12 9. Vehicle barriers 10. Handrails 11. Storage racks Over 2.4 m high 12. Fire sprinkler structural support - 8 9 Source: NSCP, 2010 Notes for Table 4-5 1 For special-purpose roofs, see NSCP Sections 205.4.4. 2 See NSCP Sections 205.5 and 205.6 for live-load reductions. The rate of reduction r in NSCP Equation 205-1 shall be as indicated in the table. The maximum reduction, R, shall not exceed the value indicated in the table. 3 A flat roof is any roof with a slope less than 1/4 unit vertical in 12 units horizontal (2% slope). The live load for flat roofs is in addition to the ponding load required by NSCP Section 206.7. 4 See definition in NSCP Section 202. 5 See NSCP Section 205.4.4 for concentrated load requirements for greenhouse roof members. Source: NSCP, 2010 Notes for Table 4-4: The tabulated loads are minimum loads. Where other vertical by this code or required by the design would cause greater stresses, they shall be used. Loads are in kPa unless otherwise indicated in the table. 2 Unit is kN/m. 3 Lateral sway bracing loads of 350 N/m parallel and 145 N/m perpendiculars to seat and footboards. 4 Does not apply to ceilings that have sufficient total access from below, such that access is not required within the space above the ceiling. Does not apply to ceilings if the attic areas above the ceiling are not provided with access. This live load need not be considered as acting simultaneously with other live loads imposed upon the ceiling framing or its supporting structure. 5 The impact factors included are for cranes with steel wheels riding on steel rails. They may be modified if substantiating technical data acceptable to the building official is submitted. Live loads on crane support girders and their connections shall be taken as the maximum crane wheel loads. For pendant-operated traveling crane support girders and their connections, the impact factors shall be 1.10. 6 This applies in the direction parallel to the runway rails (longitudinal). The factor for forces perpendicular to the rail is 0.20 x the transverse traveling loads (trolley, cab, hooks and lifted loads). Forces shall be applied at top of rail and may be disturbed among rails of multiple rail cranes and shall be distributed with due regard for lateral stiffness of the structures supporting these rails. 7 A load per lineal meter (kN/m) to be applied horizontally at right angles to the top rail. 8 Intermediate rails, panel fillers and their connections shall be capable of withstanding a load of 1.2 kPa applied horizontally at right angles over the entire tributary area including openings and spaces between rails. Reactions due to this loading need not be combined with those of Footnote 7. 9 A horizontal load in kN applied at right angles to the vehicle barrier at a height of 450 mm above the parking surface. The force may be distributed over a 300-mm-square area. 10 The mounting of handrails shall be such that the completed handrail and supporting structure are capable of withstanding a load of at least 890 N applied in any direction at any point on the rail. These loads shall not be assumed to act cumulatively with Item 9. 1 4-8 Minimum Roof Live Loads 1 4.2.6 Other Minimum Loads Other minimum loads to be considered are: 4.2.7 Impact loads (NSCP Section 206.3). This is the dynamic effect on a body as induced by the contact of moving load or operating equipment. Impact is expressed as a percentage increase in the load when at rest. Crane Loads (NSCP Section 206.9). Heliport and Helistop Landing Areas (NSCP Section 206.10). Soil load. Wind Load The most significant consideration in the computation of wind load is the location of the structure. Areas facing the Pacific Ocean are analyzed against a maximum wind design velocity of 250 kph and are designated as Zone 1, consistent with the strong tropical storms that originate from this area. The wind from Zone 1 wind weakens to 200 kph in the area designated as Zone 2. This wind exits at the 4-9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Philippine Sea with a velocity of 150 kph in the area designated as Zone 3. Table 47 identifies specific provinces under each zone and a quick reference map is available on NSCP Figure 207-24. NSCP also requires the use of the occupancy importance factor, a magnifier that increases (or reduces) the wind load. A magnifies of 15% is used for many structures most needed during emergencies, structures that can have many occupants in one area and facilities that house dangerous materials that may cause additional harm to the populace if toxins are released due to structural failure. A low of -15% is used for facilities that are not usually used as human shelter. Table 4-6 describes occupancy/function of structure, while Table 4-9 factor the numerical value for occupancy importance factor. Analysis of structures should include a separate consideration for the Main Wind Force Resisting System (MWFRS) which is the assembly of structural members that provide the overall reliability against wind forces, and the components and cladding elements which are individual parts of the structure that cover and complete the skeletal MWFRS. The design wind load for buildings, including MWFRS and component and cladding elements, shall be determined using the following methods. Method 1: Simplified Procedure The steps in accordance with are: 1. The basic wind Speed, V, in accordance with NSCP Section 207.5.4 shall be determined assuming the wind can come from any horizontal direction. 2. Determine the importance factor, Iw, in accordance with NSCP Section 207.5.5. 3. Determine the exposure category in accordance with NSCP Section 207.5.6. 4. Determine the height and exposure adjustment coefficient, λ, shall be determined from NSCP Figures 207-2 and 207-3. 5. For the Main Wind-Force Resisting System: Determine Ps for the horizontal pressures which is the combination of the windward and leeward net pressures and shall be determined by the following equation: ps = λK zt Iw ps9 The net design wind pressures, pnet, for the components and cladding of buildings shall be determined by the following equation: where: Kzt = Iw = ps9 4-10 Pnet = λK zt Iw pnet9 = topographic factor as defined in NSCP Section 207.5.7 simplified design wind pressure for Exposure B at h=9 m 1.0 from NSCP Figure 207-3, kPa Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Pnet9 = Iw = net design wind pressure for Exposure B at h=9 m 1.0 from NSCP Figure 207-3, kPa Method 2: Analytical Procedure Analytical procedure shall be used for buildings or structures that do not satisfy the conditions for using the simplified procedure provided that the building or structure is regular-shaped as defined in NSCP Section 207.5 and does not have response wind loading, vortex, shedding, instability due to galloping or flutter, or does not have a site location for which channeling effect or buffering in the wake of upwind obstructions warrant special consideration as stated in NSCP Section 207.5.1. The steps of analytical procedure in accordance with NSCP Section 207.5.3 are: 1. Determine the basic wind speed V and wind directionality factor K d in accordance with NSCP Section 207.5.4 and NSCP Table 207-2 respectively. 2. Determine the importance factor, Iw, in accordance with NSCP Section 207.5.5. 3. Determine the exposure category or exposure coefficient Kz or Kh, as applicable for each wind direction in accordance with NSCP Section 207.5.6. 4. Determine the topographic factor Kzt in accordance with NSCP Section 207.5.7. 5. Determine the gust effect Factor G or Gf, as applicable in accordance with NSCP Section 207.5.8. 6. Determine the enclosure classification in accordance with NSCP Section 207.5.9. 7. Determine the Internal Pressure coefficients, GCpi in accordance with NSCP Section 207.5.11.1. 8. Determine the External Pressure coefficient Cp or GCpf or force coefficients Cf, as applicable in accordance with NSCP Section 207.5.11.2 or NSCP Section 207.5.11.3, respectively. 9. Determine the velocity pressure qz or qh, as applicable, in accordance with NSCP Section 207.5.10. The velocity pressure, qz evaluated at height z shall be calculated by the following equation: where: Kd Kz Kzt qz = 47.3 x 10−6 K z K zt K d V 2 Iw = wind directionality factor in NSCP Table 207-2 = topographic factor as defined in NSCP Section 207.5.7 = velocity pressure exposure coefficient evaluated at height z 10. Determine the wind load p or F in accordance with NSCP Sections 207.5.12, 207.5.13, 207.5.14, and 207.5.15 as applicable. The design wind pressure is given by the following equations: For rigid buildings of all heights: 4-11 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures For flexible buildings: q where: q = = qi = qi = G = Cp (GCpi) = = p = qGCp − qi (GCpi ) qz for windward walls evaluated at height z above the ground 4-12 Occupancy Category I Essential Facilities qh for windward walls, leeward walls, and roofs of enclosed buildings and fpr negative internal pressure evaluation in partially enclosed buildings qz for positive internal pressure evaluation in partially enclosed buildings where height is defined as the level at the highest opening in the building that could affect the positive internal pressure gust effect factor from NSCP Section 207.5.8 (See discussion in NSCP Section 207.5.12.2) external pressure coefficient from NSCP Figure 207-6 or 207-8 II Hazardous Facilities III Special Occupancy Structures internal pressure coefficient from NSCP Figure 207-5; q and qi shall be evaluated using exposure defined in NSCP Section 207.5.6.3. Pressure shall be applied simultaneously on windward and leeward walls and on roof surface as defined in NSCP Figures 207-6 and 207-8. p = qh[(GCpf) – (GCpi)] = (GCpi ) = internal pressure coefficient from NSCP Figure 207-5 = Occupancy Category qh for leeward walls, side walls and roofs evaluated at height h qh (GCpf ) Table 4-6 p = qGf Cp − qi (GCpi ) Alternatively, design wind pressures for the MWFRS of low-rise buildings shall be determined by the following equation: where: Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Occupancy or Function of Structure Occupancy having surgery and emergency treatment areas Fire and police stations Garage and shelters for emergency vehicles and emergency aircraft Structures and shelters in emergency preparedness centers Aviation control towers Structures and equipment in communication centers and other facilities required for emergency response Facilities for standby power-generating equipment for Category I structures Tanks or other structures containing housing or supporting water or other fire-suppression material or equipment required for the protection of Category I, II or III structures Public school buildings Hospitals Designated evacuation centers Occupancies and structures housing or supporting toxic or explosive chemicals or substances Non-building structures storing, supporting or containing quantities of toxic or explosive substances Single-story school buildings Buildings with an assembly room with an occupant capacity of 1,000 or more Educational buildings such as museums libraries, auditorium with a capacity of 300 or more students Buildings used for college or adult education with a capacity of 500 or more students Institutional buildings with 50 or more incapacitated patients, but not included in Category I Mental hospitals, sanitariums, jails, prison and other buildings where personal liberties of inmates are similarly restrained All structures with an occupancy of 5,000 or more persons Structures and equipment in power-generating stations, and other public utility facilities not included in Category I or Category II, and required for continued operation IV Standard Occupancy Structures All structures housing occupancies or having functions not listed in Category I, II or III and Category V V Miscellaneous Structures Private garages, carports, sheds and fences over 1.5 m high velocity pressure evaluated at mean roof height h using exposure defined in NSCP Section 207.5.6.3 external pressure coefficient from NSCP Figure 207-10 4-13 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Wind Zone for the Different Provinces of the Philippines Zone Classification (Basic Wind Speed) Table 4-10 Provinces Height above Ground Level, z (m) Zone 1 (V=250kph) Albay, Aurora, Batanes, Cagayan, Camarines Norte, Camarines Sur, Catanduanes, Eastern Samar, Isabela, Northern Samar, Quezon, Quirino, Samar, Sorsogon Zone 2 (V=200 kph) Abra, Agusan del Norte, Agusan del Sur, Aklan, Antique, Apayao, Bataan, Batangas, Benguet, Biliran, Bohol, Camiguin, Capiz, Cavite, Cebu, Compostela Valley, Davao Oriental, Guimaras, Ifugao, Ilocos Norte, Ilocos Sur, Iloilo, Kalinga, La Union, Laguna, Leyte, Marinduque, Masbate, Misamis Oriental, Mountain Province, National Capital Region, Negros Occidental, Negros Oriental, Nueva Ecija, Nueva Vizcaya, Occidental Mindoro, Oriental Mindoro, Pampanga, Pangasinan, Rizal, Romblon, Siquijor, Southern Leyte, Surigao del Norte, Surigao del Sur, Tarlac, Zambales Zone 3 (V=150 kph) Table 4-8 Basilan, Bukidnon, Davao del Norte, Davao del Sur, Lanao del Norte, Lanao del Sur, Maguindanao, Misamis Occidental, North Cotabato, Palawan, Sarangani, South Cotabato, Sultan Kudarat, Sulu, Tawi-tawi, Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay Wind Directionality Factor, K d Structural Type Directionality Factor Kd* Buildings Main Wind Force Resisting System Components and Cladding 0.85 0.85 Arched Roofs 0.85 Chimneys, Tanks, and Similar Structures Square Hexagonal Round 0.90 0.95 0.95 Solid Signs 0.85 Open Signs and Lattice Framework 0.85 Trussed Towers Triangular, square, rectangular All other costs sections 1 0.85 0.95 1. B D Case 2 Cases 1 & 2 Cases 1 & 2 0-4.5 0.70 0.57 0.85 1.03 6 0.70 0.62 0.90 1.08 7.5 0.70 0.66 0.94 1.12 9 0.70 0.70 0.98 1.16 12 0.76 0.76 1.04 1.22 15 0.81 0.81 1.09 1.27 18 0.85 0.85 1.13 1.31 21 0.89 0.89 1.17 1.34 24 0.93 0.93 1.21 1.38 27 0.96 0.96 1.24 1.40 30 0.99 0.99 1.26 1.43 36 1.04 1.04 1.31 1.48 42 1.09 1.09 1.36 1.52 48 1.13 1.13 1.39 1.55 54 1.17 1.17 1.43 1.58 60 1.20 1.20 1.46 1.61 75 1.28 1.28 1.53 1.68 90 1.35 1.35 1.59 1.73 105 1.41 1.41 1.64 1.78 120 1.47 1.47 1.69 1.82 135 1.52 1.52 1.73 1.86 150 1.56 1.56 1.77 1.89 Case 1: a. All components and cladding. Case 2: a: All main wind force resisting systems in buildings except those in low-rise buildings designed using NSCP Figure 207-10. Occupancy Category Description IW I Essential 1.15 II Hazardous 1.15 III Special Occupancy 1.15 IV Standard Occupancy 1.00 V Miscellaneous 0.87 b. All main wind force resisting systems in other structures. 2. The velocity pressure exposure coefficient Kz may be determined from the following formula: For 𝓏𝓏 < 4.5 m For 4.5 m ≤ 𝓏𝓏 ≤ 𝓏𝓏g 3. 4. 5. 4-14 C Case 1 b. Main wind force resisting system in low-rise buildings designed using NSCP Figure 207-10. Importance Factor, Iw (Wind Loads) refer Table 4-6 for types of occupancy under each category. Exposure (Note 1) Notes for Table 4-10: * Directionality Factor Kd has been calibrated with combinations of loads specified in NSCP Section 203. This factor shall only be applied when used in conjunction with load combinations specified in NSCP Section 203.3 and 203.4. Table 4-9 Velocity Pressure Exposure Coefficients1 , Kh and Kz 2/a 4.5 K 𝒵𝒵 = 2.01 ( ) 𝓏𝓏g 𝓏𝓏 2/a K 𝓏𝓏 = 2.01 ( ) 𝓏𝓏g Note: 𝓏𝓏 shall not be taken less than 9.0 m for Case 1 in exposure B. α and 𝓏𝓏g are tabulated in NSCP Table 207-5. Linear interpolation for intermediate values of height 𝓏𝓏 is acceptable. Exposure categories are defined in Section 207.5.6. 4-15 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-11 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Simplified Design Base Shear Terrain Exposure Constants Exposure B C D a 7.0 9.5 11.5 Zg (m) 365 275 215 𝑎𝑎̂ 1/7 1/9.5 1/11.5 𝑏𝑏̂ 0.84 1.00 1.07 𝑎𝑎̅ 1/4 1/6.5 1/9 𝑏𝑏̅ 0.45 0.65 0.80 C 0.30 0.20 0.15 D0 0.010 0.005 0.003 ℓ(m) 100 150 200 1/3 1/5 1/8 *zmin (m) 9 4.5 2.10 ℰ̅ * zmin = minimum height used to ensure that the equivalent height 𝓏𝓏̅ is or 2/3 h for trussed towers, the height of the transmission cable above ground, or 0.6h for buildings and other structure. For ≤ zmin 𝓏𝓏̅ shall be taken as zmin. Method 3 – Wind Tunnel Procedure 4.2.8 NSCP Section 207.5.2 of NSCP explains that this method is used when structures do not meet the provisions of NSCP Section 207.5.1 or have unusual shapes or response characteristics. Seismic Load Other than Mainland Palawan, the Sulu, Tawi-Tawi group of Islands, the Philippines is situated in a highly seismic zone categorized as Zone 4 similar to those of California, Japan, China, Mexico etc. Structures and portions thereof shall be designed and constructed to resist the effects of seismic ground motions as provided in NSCP Section 208. Two methods of analysis are available, namely: Static Analysis and Dynamic Analysis. The latter method may be used for any structure but is a must for structures described in Tables 4-23 and 4-24 and NSCP Section 208.4.8.3. Minimum Design Lateral Forces (NSCP Section 208.5) The section discusses computation of lateral loads and in particular explains the static lateral load, load distribution as well as the calculation for drift. NSCP Section 208.5.2.3.1 describes the Minimum Design Lateral Forces and its Related Effects. This approach is applicable to single family dwellings not more than three floors excluding the basement and also other structures not more than two stories excluding basement. The approach falls under seismic occupancy importance factor =1 under standard and miscellaneous occupancies (Refer Table 4-12). where: V = I = seismic occupancy importance factor in Table 4-12 R = Ca, Cv = numerical equivalent to account for the inherent overstrength of the adopted structural system. (Refer Table 4-19 to 4-22) seismic coefficients (Refer Tables 4-15 and 4-16 respectively) T = fundamental period of vibration (Method A) W = Na, Nv 𝐶𝐶𝑡𝑡 = = = = Table 4-12 𝐶𝐶 𝐼𝐼 𝑉𝑉 = 𝑣𝑣 𝑊𝑊 𝑅𝑅𝑅𝑅 ≤ 2.5𝐶𝐶𝑎𝑎 I 𝑉𝑉 = R ≥ 0.8Z𝑁𝑁𝑣𝑣 I 𝑉𝑉 = R ≥ 3𝐶𝐶𝑎𝑎 W R base shear NSCP Section 208.5.2 provides us with the static force procedure. NSCP Section 208.5.2.1 provides calculation of the design base shear by: W 𝑉𝑉 = 0.11𝐶𝐶𝑎𝑎 𝐼𝐼 𝑊𝑊 W (for zone 4) 1 4-16 V= total dead load including permanent equipment loads and a portion of the live load if the Structural Engineer finds it necessary. A minimum of 25% of the floor live load shall also apply for storage facilities near source Factors (Refer Tables 4-17 and 4-18 respectively) 𝑇𝑇 = 𝐶𝐶𝑡𝑡 (ℎ𝑛𝑛 )3/4 0.0853 for steel moment-resisting frame 0.0731 for reinforced concrete moment resisting frames and eccentrically braced frames. 0.0488 for all other buildings Seismic Importance Factor Occupancy Category1 Seismic Importance Factor, I Seismic Importance2 Factor, Ip I. Essential Facilities3 1.50 1.50 II. Hazardous Facilities 1.25 1.50 III. Special Occupancy Structures4 1.00 1.00 IV. Standard Occupancy Structure4 1.00 1.00 V. Miscellaneous Structures 1.00 1.00 See Table 4-6 for occupancy listing. 4-17 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 2 3 4 The limitation of Ip for panel connections in NSCP Section 208.8.2.3 shall be 1.0 for the entire connector Structural observation requirements are given in NSCP Section 107.9. For anchorage of machinery and equipment required for life-safety systems, the value of Ip shall be taken as 1.5. Table 4-13 Soil Profile Name/ Generic Description 0.32Nv SB 0.20 0.40Nv Average Soil Properties for Top 30 m of Soil Profile SC 0.32 0.56Nv Shear Wave Velocity, Vs (m/s) SD 0.40 0.64Nv SE 0.64 0.96Nv SPT, N (blows/ 300 mm) Undrained Shear Strength SU (kPa) SF 1 Rock 760 to 1500 SC Very Dense Soil and Soft Rock 360 to 760 > 50 > 100 SD Stiff Soil Profile 180 to 360 15 to 50 50 to 100 SE1 Soft Soil Profile <180 < 15 < 50 > 1500 Table 4-17 Near-Source Factor Na1 Seismic Source Type Soil Profile Type SE also includes any soil profile with more than 3.0 m of soft clay defined as a soil with plasticity index, PI> 20, wmc ≥ 40 percent and su< 24 kPa. The Plasticity Index, PI, and the moisture content, wmc, shall be determined in accordance with approved national standards. Seismic Source Type1 See Footnote 1 Site-specific geotechnical investigation and dynamic site response analysis shall be performed to determine seismic coefficient Soil Requiring Site-specific Evaluation. See NSCP Section 208.4.3.1 Seismic Source Description A Faults that are capable of producing large magnitude events and that have a high rate of seismic activity. B All faults other than Types A and C. ≥ 10 km A 1.2 1.0 B 1.0 1.0 C 1.0 1.0 C Faults that are not capable of producing large magnitude earthquakes and that have a relatively low rate of seismic activity Near-Source Factor, Nv1 Seismic Source Definition Seismic Source Type Maximum Moment Magnitude, M M ≥ 7.0 6.5 ≤ M < 7.0 M < 6.5 Subduction sources shall be evaluated on a site-specific basis. Closest Distance to Known Seismic Source2 ≤ 5 km Table 4-18 Seismic Source Type Closest Distance to Known Seismic Source2 ≤ 5 km 10 km ≥15 km A 1.6 1.2 1.0 B 1.2 1.0 1.0 C 1.0 1.0 1.0 Notes for Tables 4-17 and 4-18 1 The Near-Source Factor may be based on the linear interpolation of values for distances other than those shown in the table. 2 The closest distance to seismic source shall be taken as the minimum distance between the site and the area described by the vertical projection of the source on the surface (i.e. surface projection of fault plane). The source projection need not include portions of the source at deptsh of 10 km or greater. The largest value of the Near-source Factor considering all sources shall be used for design. Seismic Coefficient, Ca Soil Profile Type Seismic Zone Z Z = 0.2 Z=0.4 SA 0.16 0.32Na SB 0.20 0.40Na SC 0.24 0.40Na SD 0.28 0.44Na SE 0.34 0.44Na SF 4-18 Z=0.4 0.16 SB Table 4-15 Seismic Zone Z Soil Profile Type Z=0.2 Hard Rock Table 4-14 Seismic Coefficient, Cv SA SA SF 1 Table 4-16 Soil Profile Type Soil Profile Type 1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures See Footnote 1 of Table 4-16 4-19 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-19 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Earthquake – Force Resisting Structural Systems of Concrete Basic Seismic-Force Resisting System R Ω0 Table 4-21 System Limitation and Building Height Limitation by Seismic Zone, m Zone 2 5.5 Heavy timber braced frames where bracing carries gravity load 2.8 2.2 Light-framed walls with wood shear panels walls for structures three stories or less NA NA All other light framed walls NA NA Heavy timber-braced frames where bracing carries gravity load 2.8 2.2 NL 20 2.8 NL Light-framed walls with shear panels: wood structural panel walls for structures three stories or less 6.5 2.8 NL 20 Ordinary heavy timber-braced frames 5.6 NL 20 20 2.2 NL 20 Earthquake-Force-Resisting Structural Systems of Masonry R Ω0 System Limitation and Building Height Limitation by Seismic Zone, m Zone 2 Zone 4 A. Bearing Wall Systems 4.5 2.8 NL 50 5.5 2.8 NL 50 B. Building Frame Systems Masonry shearwalls C. Moment-Resisting Frame Systems Masonry moment-resisting wall frames (MMRWF) 6.5 2.8 NL 50 D. Dual Systems 4-20 Ω0 Zone 2 Zone 4 Light steel-framed bearing walls with tension-only bracing 2.8 2.2 NL 20 Braced frames where bracing carries gravity load 4.4 2.2 NL 50 Light framed walls sheathed with wood structural panels rated for shear resistance or steel sheets 4.5 2.8 NL 20 Light-framed walls with shear panels of all other light materials 4.5 2.8 NL 20 Light-framed wall systems using flat strap bracing 2.8 2.2 NL NP Steel eccentrically braced frames (EBF), moment-resisting connections at columns away from links 8.5 2.8 NL 30 Steel eccentrically braced frames (EBF), non momentresisting connections at columns away from links 6.0 2.2 NL 30 Special concentrically braced frames (SCBF) 6.0 2.2 NL 30 Ordinary concentrically braced frames (OCBF) 3.2 2.2 NL NP Light-framed walls sheathed with wood structural panels/ sheet steel panels 6.5 2.8 NL 20 Light frame walls with shear panels of all other materials 2.5 2.8 NL NP Buckling-restrained braced frames (BRBF), non moment-resisting beam-column connection 7 2.8 NL 30 Buckling-restrained braced frames, moment-resisting beam-column connections 8 2.8 NL 30 Special steel plate shear walls (SPSW) 7 2.8 NL 30 Special moment-resisting frame (SMRF) 8.0 3 NL NL Intermediate steel moment frames (IMF) 4.5 3 NL NP Ordinary moment frames (OMF) 3.5 3 NL NP Special truss moment frames (STMF) 6.5 3 NL NP Special composite steel and concrete moment frames 8 3 NL NL Intermediate composite moment frames 5 3 NL NP Composite partially restrained moment frames 6 3 48 NP Ordinary composite moment frames 3 3 NP NP Steel eccentrically braced frames 8 2.8 NL NL Special steel concentrically braced frames 7 2.8 NL NL Composite steel and concrete eccentrically braced frame 8 2.8 NL NL Composite steel and concrete concentrically braced frame 6 2.8 NL NL Composite steel plate shear walls 7.5 2.8 NL NL Buckling-restrained braced frame 8 2.8 NL NL Special steel plate shear walls 8 2.8 NL NL Masonry shear wall steel OMRF 4.2 2.8 NL 50 Steel EBF with steel SMRF 8.5 2.8 NL NL B. Building Frame Systems B. Building Frame Systems Masonry shear walls R System Limitation and Building Height Limitation by Seismic Zone, m A. Bearing Wall Systems Light-framed walls with shear panels: wood structural panel walls for structures three stories or less Basic Seismic-Force Resisting System Basic Seismic-Force Resisting System Zone 4 A. Bearing Wall Systems Table 4-20 Earthquake-Force-Resisting Structural Systems of Steel Masonry shear walls with SMRF 5.5 2.8 NL 50 Masonry shear walls with steel OMRF 4.2 2.8 NL 50 Masonry shear walls with concrete IMRF 4.2 2.8 NL NP Masonry shear walls with masonry MMRWF 6.0 2.8 NL 50 C. Moment-Resisting Frame Systems D. Dual Systems 4-21 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Basic Seismic-Force Resisting System R Ω0 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures System Limitation and Building Height Limitation by Seismic Zone, m Zone 2 Zone 4 Steel EBF with steel OMRF 4.2 2.8 NL 50 Special concentrically braced frames with steel SMRF 7.5 2.8 NL NL Special concentrically braced frames with steel OMRF 4.2 2.8 NL 50 Special steel concentrically braced frame 6 2.8 NL NP Composite steel and concrete concentrically braced frame 5.5 2.8 NL NP Ordinary composite braced frame 3.5 2.8 NL NP Ordinary composite reinforced concrete shear walls with steel elements 5 2.8 NL NP Special steel moment frames 2.2 2.0 10 10 Intermediate steel moment frames 1.2 2.0 10 NP Ordinary steel moment frames 1.0 2.0 10 NP Cantilevered column elements 2.2 2.0 NL 10 3 3 NL NP E. Dual System with Intermediate Moment Frames F. Cantilevered Column Building Systems G. Steel Systems not Specifically Detailed for Seismic Resistance, Excluding Cantilever Systems Table 4-22 Earthquake-Force-Resisting Structural Systems of Wood Basic Seismic-Force Resisting System A. R Ω0 System Limitation and Building Height Limitation by Seismic Zone, m Zone 2 Zone 4 Bearing Wall Systems Light-framed walls with shear panels: wood structural panel walls for structures three stories or less 5.5 2.8 NL 20 Heavy timber braced frames where bracing carries gravity load 2.8 2.2 NL 20 Light-framed walls with wood shear panels walls for structures three stories or less NA NA All other light framed walls NA NA Heavy timber-braced frames where bracing carries gravity load 2.8 2.2 NL 20 Light-framed walls with shear panels: wood structural panel walls for structures three stories or less 6.5 2.8 NL 20 Ordinary heavy timber-braced frames 5.6 2.2 NL 20 B. Building Frame Systems Vertical Distribution of Force (NSCP Section 208.5.5) The Base Shear (V) shall be distributed over the structure height using the formula: n V = 𝐹𝐹𝑡𝑡 + ∑ 𝐹𝐹𝑡𝑡 i=1 Where 𝐹𝐹𝑡𝑡 is the whip effect applied at level n in addition to Fn 𝐹𝐹𝑡𝑡 = 0.07TV 𝐹𝐹𝑡𝑡 need not exceed 0.25V and is considered nil when the fundamental period T is 0.7 second or less. The remaining force "V-𝐹𝐹𝑡𝑡 " shall be distributed over the entire height of the structure using the formula where: Fx,wx,hx Fi,wi,hi = = (𝑉𝑉 − 𝐹𝐹𝑡𝑡 )𝑤𝑤𝑥𝑥 ℎ𝑥𝑥 ∑𝑛𝑛𝑖𝑖=1 𝑤𝑤𝑖𝑖 ℎ𝑖𝑖 level 'x' lateral force F, floor weight 'w' and height 'h' from the base(ground). force weight and height of level 'i' Horizontal Distribution of Shear (NSCP Section 208.5.6) Forces 𝐹𝐹𝑡𝑡 , 𝐹𝐹𝑥𝑥 shall be distributed to the lateral force resisting elements in proportion to their relative rigidities. For rigid diaphragms, mass eccentricity is assumed to be 5% of the building dimension perpendicular to the direction of the force. Dynamic Analysis Procedure (NSCP Section 208.6) Pertinent parameters are enumerated as a guidelines in three dimensional modelling of structures with irregular plan configuration (such as those in Table 4-24). Lateral Forces on Components of Structure, Non-Structural Components and Equipment Supported by Structures (NSCP Section 208.7) The section discusses the structural analysis of structure components such as non structural walls, parapets etc. Seismic shall be determined considering the following (NSCP Section 208.4.1): 4-22 𝐹𝐹𝐹𝐹 = Seismic Zone (NSCP Figure 208-4, Section 208.4.4.1) either zone 4 or zone 2. Regions are categorized as having the highest seismicity (zone 4) to an area of least or lowest recorded seismic activity (zone 1). Except for Palawan and some island provinces of Mindanao (zone 2). The Philippines is under zone 4. Site Characteristics (NSCP Section 208.4.3 – Section 208.4.4). This includes, soil type, proximity to earthquake generators and seismic source type which essentially predicts the magnitude that the fault can generate. 4-23 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Occupancy (NSCP Section 208.4.2 together with NSCP Table 4-6). The code also requires the use of occupancy importance factor, a magnifier that increases (or reduces) the seismic load to a maximum of 50% for structures most needed during emergencies and those that would have a many occupants in one area as well as facilities that house dangerous materials that may cause additional harm to the populace in case toxins are released due to structural failure. Building Configuration (NSCP Section 208.4.5) describes regular and irregular structures which will become part of the basis for the method of design. The type of Structural System as discussed in NSCP Section 208.4.6 as well as the Building Heights (NSCP Section 208.4.7) shall be used in the computation of the design seismic force. Table 4-23 4-24 Vertical Structural Irregularities Irregularity Type and Definition Reference NSCP Section 1. Stiffness Irregularity – Soft Story A soft story is one in which the lateral stiffness is less than 70 percent of that in the story above or less than 80 percent of the average stiffness of the three stories above. 208.4.8.3 Item 2 2. Weight (Mass) Irregularity Mass irregularity shall be considered to exist where the effective mass of any story is more than 150 percent of the effective mass of an adjacent story. A roof that is lighter than the floor below need not be considered. 208.4.8.3 Item 2 3. Vertical Geometric Irregularity Vertical geometric irregularity shall be considered to exist where the horizontal dimension of the lateral-force-resisting system in any story is more than 130 percent of that in an adjacent story. One-story penthouses need not be considered. 208.4.8.3 Item 2 4. In-Plane Discontinuity In Vertical Lateral-ForceResisting Element Irregularity An in-plane offset of the lateral-load-resisting elements greater than the length of those elements. 208.5.8.1 5. Discontinuity In Capacity – Weak Story Irregularity A weak story is one in which the story strength is less than 80 percent of that in the story above. The story strength is the total strength of all seismic-resisting elements sharing the story for the direction under consideration. 208.4.9.1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.3.2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Site Investigations These hazards may be identified through historical records and reports from local units and previous site investigations. Interviews from the inhabitants of the area may also be done to cross-reference gathered historical data. All projects require site investigations to be conducted by the duly authorized party. Site investigations must provide sufficient information for apt planning of the sub-surface investigation as determined by the engineer. Recognition of the site hazards will prompt the engineers of the additional considerations critical to the investigation, design and analysis of the site. NSCP Section 303.1 recommends: A geotechnical study be conducted for foundation design for structures two stories or higher. Anthropogenic Features Man-made structures and other appurtenances for water supply, power generation, agriculture, aquaculture, pumping wells, flood control, coastal improvement, land reclamations, sanitary landfills, slope stabilization, mining and quarrying, telecommunications, transportation, infrastructure and other edifices near the site constitute additional considerations. A total of 2 boreholes for structures less than 300 m2 in area and at least 3 boreholes for larger building area. A maximum of 1 borehole for every 200 m2 of a structure. Topography and Geologic Features General features that must be noted are: Terrain analysis of the project site can be carried out using remotely-sensed imagery or topographical maps and then confirmed by conducting site reconnaissance surveys. The project site is located on the map and the general surface environment and terrain can be interpreted. By identifying the terrain, specific issues can be taken into account such as sloping ground, soil and rock (geologic) formation, hydrologic formations, fault systems. Geologic information can also be gathered from geologic assessments by licensed and recognized geologists, boring information or geotechnical reports from previous projects in close proximity to the project site, and data from local government units and pertinent government offices. The geologic information must provide insight to the regional geology of the site particularly soil and rock formation, groundwater table elevation, and other geotechnical characteristics. 4-26 Seismicity/earthquake risks Flooding Tidal waves Landslides Problematic soils (such as liquefiable soils, expansive soils and collapsible soils) Sinkholes Accessibility (for construction purposes) Waste disposal facilities Cuts and fills Drainage Land use Underground conduits that convey water, sewage, electricity, and telecommunication lines may exist within the project site and must be preserved from damage during sub-surface exploration and construction. Similarly, structures adjacent to project site must not experience disturbance, usually due to excessive vibrations and improperly designed excavations that may induce instability or aesthetic detriment (such as misalignment of plumbing and door settling) as determined by the Engineer. Hazards Adjacent structures The aforementioned factors can affect and be affected by any soil investigation or construction that it is essential to determine the existence and location of such. An overview of the rainfall patterns and climatic conditions is also ideal for holistic analysis as this provides an insight on the possible environmental conditions to be encountered in the construction and engineering process. Drainage and surface water conditions may also provide useful information. Exposure to natural hazards must be comprehensively identified for sub-surface investigation and design references. Hazards cover natural and environmental factors that highly influence the stability and safety conditions of the project during and after construction. Common risk factors include, but are not limited to, the following: Underground utility lines and other conduits 4.3.3 Accessibility of the site for mobilization and demobilization of equipment to be used during sub-surface exploration and construction must be outlined so as to recommend applicable methods to carry out such works. Sub-surface Investigations Sub-surface exploration shall observe the implementing rules and guidelines of governing agencies of national and local government, adapted international standards without compromising engineering principles and with high priority for safety the of stakeholders involved. Existing guidelines observed by local practice pertinent to this section: 4-27 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures DPWH Standard Specifications for Highways, 2012 Edition: Highways, Bridges and Airports (Volume II) Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.3.4 Soil laboratory tests must follow applicable governing standards from references stated above. Geotechnical laboratories that will conduct tests must be ISOcertified and duly recognized to operate for local business. Association of Structural Engineers of the Philippines National Structural Code of the Philippines 2010, Sixth Edition: Buildings, Towers, and Other Vertical Structures (Volume I) Some of the geotechnical laboratory tests and corresponding standards are provided in Table 4-25. The laboratory tests will be conducted to determine the soil properties according to the rock sample recovered and the discretion of the geotechnical engineer on the soil parameters required for engineering design. Relevant DPWH Orders, Memoranda, etc. In addition to the referenced guidelines, the DGCS shall also adopt additional guidelines from international standards, professional industry handbooks and globally used academic literature applicable for the implementation. The references include: Table 4-25 International Code Council International Building Code 2009 Geotechnical Engineering Investigation Handbook, Second Edition by Hunt, R.E. In this section, detailed discussion and instruction is provided on the (1) purpose and importance of sub-surface investigations; (2) proper execution of standard techniques and methodologies of soil explorations; and (3) output data analysis of field investigations for geotechnical reports. Execution of soil exploration methods shall integrate internationally-adopted standards and DPWH-observed guidelines. Various soil exploration methodologies will be discussed focusing on proper procedures, applicability to different soil and rock formations, and field considerations. Analysis of information from field explorations shall include good practices in preparing boring logs and borehole logs to facilitate efficient geotechnical analysis. Parameter Observed ASTM D2216-05 Moisture content Specific Gravity ASTM D854-05 Specific gravity Grain-size Analysis (Mechanical Sieve Analysis and Hydrometer Analysis) ASTM D422-63 Soil gradation Atterberg Limits ASTM D4318-05 Liquid limit Plastic limit Classification ASTM D2487-00 Classification of soil type Unconfined Compression Test (for Soils) ASTM D2166-00 Strength parameters Unconfined Compression Test (for Intact Rock) ASTM D2938-95 Strength parameters Tri-axial Test (Unconsolidated-Undrained) ASTM D2850-03a Strength parameters Tri-axial Test (Consolidated-Undrained) ASTM D4767-04 Strength parameters Oedometer Test (1-D Consolidation) ASTM D2435-04 Consolidation parameters Direct Shear Test ASTM D3080-04 Strength parameters Soil Sulfate Test Hach Method 8051 Sulfate content Constant-Head Test Falling-Head Test ASTM D2434 Hydraulic conductivity Source: NSCP 2010 Groundwater table must be determined after drilling and rechecked 24 hours after drilling. The Engineer must make sure that the measured groundwater table is not due to the drilling fluid used during boring. 4-28 Test Standard Designation Moisture Content Unified Soil System (USCS) Significance and importance of adequate soil sub-surface investigations shall be explained in relation with structure stability, effects on structural design, effects on project cost, etc. Provisions for unprecedented irregularities during soil sub-surface explorations will be tackled in brevity. Geotechnical Laboratory Tests and Corresponding Standards Laboratory Test American Standard for Testing and Materials International Geotechnical Engineering Standards Sub-surface investigation must extend reasonably beyond the basement requirements of the project, if any. When hard strata is encountered (SPT Nvalue>50), coring is executed 3–5m into the hard stratum to analyze its quality and verify it is really hard strata (or merely an intercepted boulder or such). Laboratory Tests Additional tests may be specified by the engineer as needed by the nature of the project. 4.3.5 Selection of the laboratory test must reflect the actual site conditions and consistent with the assumed failure mode of the soil material under consideration. Allowable Soil Bearing Capacity To determine the allowable soil bearing capacity, the Geotechnical Engineer should use any widely accepted method in the industry to calculate for the ultimate soil bearing capacity. The safe soil bearing capacity shall be determined by dividing the ultimate bearing capacity (qult) by a safety factor,𝑆𝑆𝑆𝑆, between 2.0 and 3.0. The allowable soil bearing capacity (qallow) shall be a safe bearing capacity that 4-29 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures exhibits settlement within the tolerable limits for the project. Tolerable settlement varies upon the nature of the project. 𝑞𝑞𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎 = 𝑞𝑞𝑢𝑢𝑢𝑢𝑢𝑢 (𝑢𝑢𝑢𝑢𝑑𝑑𝑑𝑑𝑑𝑑 𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡 𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠) 𝑆𝑆𝑆𝑆 In estimating the soil bearing capacity, adjacent soil strata with relatively same properties may be assumed homogenous under the discretion of the assigned engineer. Any anomalies in the stratification (such as sand lenses and intercepted boulders) must be noted and properly considered in the calculations and must be reflected in the report. Groundwater table effects on the soil bearing capacity must be considered. The season when the field investigation was carried out must also be a factor; boring during dry season may decrease the groundwater table significantly while the wet season may increase it considerably as well. The engineer must calculate the allowable soil bearing capacity conservatively when insufficient and/or unreliable or questionable data is derived from the soil investigation program. The general soil bearing capacity equation for shallow strip footings is: where: 𝑞𝑞𝑢𝑢𝑢𝑢𝑢𝑢 = 𝑐𝑐𝑁𝑁𝑐𝑐 + 𝑞𝑞𝑁𝑁𝑞𝑞 + 0.5𝛾𝛾𝛾𝛾𝑁𝑁𝛾𝛾 𝑞𝑞𝑢𝑢𝑢𝑢𝑢𝑢 = ultimate bearing capacity 𝑞𝑞 = overburden pressure at footing base 𝑐𝑐 𝛾𝛾 𝐵𝐵 = = = 𝑁𝑁𝑐𝑐 , 𝑁𝑁𝑞𝑞 , 𝑁𝑁𝛾𝛾 = cohesion of soil soil unit weight beneath footing footing width bearing capacity factors; function of soil angle of internal friction, 𝜙𝜙 This equation is modified by different factors provided by various geotechnical researchers depending on the considerations of the shallow foundation such as: Footing shape Depth of embedment Load inclination Ground (slope) Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-26 Comparison of Soil Bearing Capacity Theories Author Terzaghi Hansen Comments Used for estimating 𝑞𝑞𝑢𝑢𝑢𝑢𝑢𝑢 for very cohesive soils and footings with axial loads only Used for any particular case with applicable correction factors Meyerhof Used for any particular case with applicable correction factors Vesic Used for any particular case with applicable correction factors specially footings on slopes The correction factors given by each author must not be compounded with other correction factors given by another author or researcher, unless otherwise specified. The method selected for the analysis must be compatible with the site soil type. As recommended, the use of more than one method is advisable to determine a safe range of the allowable bearing capacity. From the results, a range of the allowable soil bearing capacity is provided for the structural engineer to adopt in the design calculations. Soil shear strength parameters (cohesion and angle of internal friction) must be determined in either drained or undrained conditions through laboratory testing or correlations. Deformation properties of the soil (such as compression index, recompression index, coefficient of consolidation, elastic modulus) must also be determined for settlement analysis. Lateral Earth Pressure Lateral earth pressures are computed whenever the soil exerts horizontal pressures on structures particularly retaining walls, sheet piles, and excavation bracing. Refer Figure 4-1. In computing for lateral earth pressures, widely-accepted theories and models may be used so as the applicability of the model is justifiable. Lateral earth pressures may be active or passive by character. When the horizontal pressure is less than the vertical pressure, the soil is under active case; otherwise, it is under passive case. A structure may be subjected to both pressures at the same time depending on the geometry and other site conditions during different phases of construction. Eccentric loading Some of the authors of widely-used modified bearing capacity equations and comments regarding the use of their correction factors are provided in Table 4-26. Further information on soil bearing capacity is provided in DGCS Volume 2C Geotechnical and Geological Investigation. 4-30 4-31 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Any correlation from these methods to determine soil properties must be applied with prudence. Deviations from the established procedures must all be noted during the procedure. To monitor consolidation settlement, piezometers may be installed to observe changes in pore water pressure. Inclinometers and other soil movement gauges may as well be utilized by experienced users of such technology. GeoHazards DGCS Volume 2A GeoHazard Assessment describes the nature of geohazards in the Philippines, the information required to assess their likelihood at a site, and a procedure for preparing a preliminary. As determined by the Engineer, special soil investigation must be carried out to determine the presence of problematic soil (such as expansive soils, liquefiable soils, fractures and discontinuities in rock material). Any uncommon condition in the subsurface material that will influence the project must be noted and properly investigated. Various signs of GeoHazards and anomalous behavior in the soil include: Sudden soil collapse or heaving Steep slopes Landslide deposits Sand lenses Penetration resistance inconsistencies Abrupt changes in subsurface stratification Special caution is practiced in investigating such hazards so as not to induce any unanticipated danger. Once the hazard is characterized by a Geotechnical Engineer, mitigating or remediating procedures may be applied. Any widely-accepted soil or rock improvement method may be conducted as long as it is identified by the Engineer as appropriate to the site condition. Ground remediation techniques include: Grouting Vertical and/or horizontal drains Surcharge preloading Lime/cement stabilization Geosynthetic reinforcement The option of removing the soil can be adopted if it is viable and economical. 4-33 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.3.7 Shallow Foundations (Footing Design) Shallow foundations can be used if the soil support mechanism relies on the bearing capacity of the soil within a foundation’s zone of influence and discounts the effect of skin friction. Shallow foundations are designed accordingly to exert pressures less than the allowable soil bearing capacity. In the design of shallow foundations, project requirements for basement levels are major factors. The basement level will determine the depth of the foundation and may prompt the engineer to decide between using shallow or deep foundation. The footing design will observe the provisions of NSCP for structural concrete. 4.3.8 Eccentric loadings must be emphasized in the design of the footing. Effects may be dealt with using any modification in the footing design that is permissible given the particular restraints of the project. Deep Foundations (Pile Design) Deep foundation is used when the soil support mechanism relies on the skin friction and end bearing of the foundation against the soil. Deep foundations are used when soil bearing capacity is not enough to support the weight of the structure, if the upper soil strata are weak, and if the project is off-shore or subjected to high groundwater table. Accessibility and adjacent structures are some other considerations for the use of deep foundations. Two general schemes of pile installation may be chosen by the engineer: driven piles and bored piles. a. Driven piles requires installation of precast piles on-site using a pneumatic or drop hammer heavy equipment. The installation procedure causes significant noise and vibration to induce public disturbance and structural damage to adjacent structures. This method, however, effectively mobilizes the skin friction resistance of the soil. Driven piles also facilitate construction. b. Bored piles require on-site assembly of reinforcing bars and preparation of drilled hole. The rebar skeleton is lowered into the hole and filled with concrete mix delivered on site. Before the concrete is poured onto the hole, debris and other dirt must be removed from the bottom of the hole to ensure the load transfer mechanism of the pile. Significant noise or public disturbance and structural damage must not be caused within proximal area of the project. This method effectively mobilizes the end-bearing more than the skin friction resistance of the soil. Bored piles relatively take a little more time than driven piles to install. Any widely-accepted method can be used to estimate pile capacity. Pile capacity mainly relies on two components which are point- or end-bearing resistance and skin friction. End-bearing capacity depends on the stratum on which the pile end rests. Skin friction is the frictional force exerted by the soil surrounding the pile through its embedment length. 4-34 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures End-bearing capacity of piles is estimated by employing principles of soil bearing as shown below. 𝑄𝑄𝑝𝑝 = 𝐴𝐴𝑝𝑝 ∗ 𝑞𝑞𝑝𝑝 𝑞𝑞𝑝𝑝 = 𝑐𝑐′𝑁𝑁𝑐𝑐 ∗ + 𝑞𝑞′𝑁𝑁𝑞𝑞 ∗ where: 𝑄𝑄𝑝𝑝 = pile end-bearing capacity 𝑞𝑞𝑝𝑝 = pile end-bearing pressure = effective overburden pressure = 𝐴𝐴𝑝𝑝 𝑐𝑐′ = 𝑁𝑁𝑐𝑐 ∗ , 𝑁𝑁𝑞𝑞 ∗ = 𝑞𝑞′ area of pile tip effective cohesion pile end-bearing capacity factors Skin friction resistance of piles is estimated by employing the principles below. 𝑄𝑄𝑠𝑠 = ∑ 𝑓𝑓𝐴𝐴𝑙𝑙 = ∑ 𝑓𝑓𝑓𝑓Δ𝐿𝐿 where: 𝑄𝑄𝑠𝑠 𝑓𝑓 = 𝐾𝐾𝜎𝜎0 ′ 𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡′ = skin friction capacity 𝑝𝑝 = perimeter of pile section 𝐾𝐾 = effective earth pressure coefficient 𝑓𝑓 Δ𝐿𝐿 𝜎𝜎0 ′ 𝛿𝛿′ = = = = unit friction resistance incremental pile length over which the frictional resistance is evaluated effective vertical stress at incremental depth considered soil-pile friction angle When piles are grouped and act as a unit, the pile group capacity must likewise be determined. Grouped piles must be placed as near each other as required by space allotment but more importantly, as far from each other for skin friction to develop and mobilize. The limiting distance between piles must be specified by the attending engineer. Micropiles Micropiles are bored mini piles with diameter not exceeding 300 mm. Because of the small size of mini piles, only small dimension equipment is needed for construction and can be used to drill through any type of soils, boulders and hard materials. They are constructed using high strength small diameter casing or thread bar. Typically the casing is advanced to the design depth using a drilling technique. Reinforcing steel in the form of an all-thread bar is typically inserted 4-35 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures into the micropile casing. High strength cement grout is then pumped into the casing. The casing may extend to the full depth above the bond zone with the reinforcing bars extending to the full depth. The finished micropile resists compression, uplift or tension loads and lateral loads. The design of micropiles for buildings and bridges involves the same approach. The structural design of micropiles, cased or uncased length, provided below is based on the Micropile Design and Construction Reference Manual, US Department of Transportation, Federal Highway Administration, Publication No. FHWA NHI-05-039, December 2005. The allowable compression load for the cased length of a micropile is: where: Pc−allowable = [0.4f ′ c−grout x Agrout + 0.47Fy−steel (Abar + Acasing )] Pc-allowable = allowable compression load f’c = unconfined compressive strength of grout (typically a 28-day strength) Fy-steel = yield stress of steel Agrout Abar Acasing = = = area of grout in micropile cross section (inside casing only, discount grout outside the casing) cross sectional area of steel reinforcing bar (if used) cross sectional area of steel casing. Strain compatibility under compression load is considered for the steel components and grout by limiting allowable stresses to the minimum allowable for any individual component (i.e., steel casing, steel reinforcement, or grout). Therefore, the maximum yield stress of steel to be used in the above equation is the minimum of yield stress of casing, yield stress of steel reinforcing rod and maximum stress based on grout failure. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures For soil which has a high corrosion potential, it may be assumed that the steel casing is not effective in carrying tensile loads, Acasing = 0. The reinforcing bar should be designed to carry the entire tension design load. Since a micropile can be subjected to lateral loads or overturning moments, they are subject to bending stresses also, thus requiring combined stress evaluation. The design check for combined stresses (appropriate for micropile) is: fb fa + ≤ 1.0 Fa (1 − fa ) F F′e where: axial stress = Pc ⁄Acasing fa = Fa = fb Fb Fe′ b = bending stress = Mmax ⁄S ; S is the elastic section modulus of the steel casing = 0.47 Fy−casing = 0.55 Fy−casing = = allowable axial stress that would be permitted if axial force alone existed allowable bending stress that would be permitted if bending moment alone existed Euler buckling stress The contribution of a central reinforcing bar to bending strength is small compared to that of the casing, hence its effects on bending strength are ignored in the above combined axial and bending equation. In this equation, it is conservatively assumed that the maximum axial compression load, Pc , is carried by the steel casing only and the yield stress of the steel casing is used. The outside diameter of the steel casing is reduced to account for losses due to corrosion in the computation of the allowable compression capacity of a cased length. Also, if the micropile is used in very weak ground, the allowable compression load may be reduced to consider the effect of buckling over the length of the micropile. Further discussion of losses due to corrosion and buckling are discussed in the Micropile Design and Construction Reference Manual of the US Federal Highway Administration. In cases where the micropiles will be subject to tensile loads, the allowable tension load 𝑃𝑃t−allowable for the cased length of a micropile can be calculated as: where: Fy−steel = 4-36 Pt−allowable = 0.55 Fy−steel × (Abar + Acasing ) minimum yield stress of the bar and casing 4-37 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Section properties required for the analysis are calculated as: Acasing = is provided demonstrating that the confined grout can sustain higher strain levels without crushing. π (OD2 − ID2 ) 4 The allowable tension load for the uncased length of a micropile is given as: Icasing S= (OD⁄2) Icasing = π (OD4 − ID4 ) 64 4.3.9 For excavation works, all applicable provisions indicated in DPWH Standard Specifications 2012 Volume II must be observed. The Euler buckling stress is calculated as: Fe′ = E where: = FS = L = K r = = π2 E FS(Kl⁄r)2 Excavations for any project must be properly designed and monitored on-site. Depths of unsupported or unbraced excavation must not exceed 3 m unless the conditions are deemed stable and safe by the Geotechnical Engineer. elastic modulus of the steel casing (typically assumed to be 200,000 MPa (29,000ksi) factor of safety equal to 2.12 effective length factor (assumed equal to 1.0) unsupported length of micropile 1⁄2 radius of gyration of the steel casing = (Icasing⁄Acasing ) The assumption that the entire axial load is carried by the steel casing is conservative. A combined stress check that can account for the contribution of the grout inside the casing to compression capacity, assuming that buckling potential is negligible, is: where: Pc Pc−allowable + Mmax Mallowable ≤ 1.0 P𝑐𝑐 = maximum axial compression load; Mmax = maximum bending moment in the micropile; and Pc−allowable = 𝑀𝑀𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎 = Excavations and Fills Pt−allowable = 0.55Fy−bar × Abar determined from the above equation for compression Various techniques in supporting excavations may be used depending on the nature of the project. The Geotechnical Engineer must account for several factors like in-situ soil parameters, access, groundwater table and overall intent in excavating. If the groundwater is relatively shallow, dewatering may be employed, however, caution is advised so as not to cause structural damage or significant settlement to adjacent structures. Observation wells may also be installed near the excavation sites to monitor dewatering progress and effects. To design the support system for excavations, rain conditions must be considered in the design observing the principles on lateral earth pressure in Section 4.3.5. Methods such as shotcrete application, soil nailing and other soil reinforcement methods for excavations can be used as long as it is supervised by experienced engineers in using the technology. For engineered fills, compaction degree will be specified to 95% of maximum dry density, or better. The optimum moisture content will be determined in the laboratory using applicable standard methods. Every layer in the compacted fill in the field shall be tested according to the specifications. In the selection of the fill material, special consideration must be given to the use of the fill material particularly with the hydraulic properties of the structure. Fb (= 0.55Fy−casing ) × S The allowable compression load for the uncased length of a micropile is given as: Pc−allowable = (0.4fc′ × Agrout + 0.47Fy−bar × Abar ) For the uncased portion of the pile, the reinforcing bar yield stress used in the calculations in compression is assumed to not exceed 600 MPa (87 ksi). The limit of 600 MPa is to prevent grout crushing at an assumed strain of 0.003 unless data 4-38 4-39 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Intermediate Grade ASTM A615 Grade 40 Fy =276 Mpa High Grade ASTM A615 Grade 60 Fy =414 Mpa Welded plain wire fabric for concrete reinforcement shall conform to "Specifications for Steel Welded Wire, Fabric, Plain for Concrete Reinforcement" (ASTM A 185M). 4.4.2 Grade 60 steel is generally used for high-rise buildings. Structural Detailing (NSCP Section 407) In general, this section shall be used as reference in detailing requirements for constructability and ensure that placement of reinforcement is consistent with the design intent. NSCP Section 407.7 – "Spacing Limits for Reinforcement" shall be used in determining effective depth used in the generated couple that resist stress as in Bending. This will also define the number of bars that can be accommodated per layer of bar in flexural members which in turn shall be used in the computation of effective depth. The center to center spacing and other details of tendons are also included in this Section of NSCP. NSCP Section 407.8 – "Concrete Protection for Reinforcement" completes the information needed as described in the previous paragraph. It specifies the minimum concrete cover for cast-in-place concrete and precast concrete both for non prestressed and prestressed members. NSCP Section 407.13 -"Shrinkage and Temperature Reinforcement"- defines code requirements for reinforcement that are required other than those that design computations yield. These are usually provided in structural slabs where the flexural reinforcement extend in one direction only. 4.4.3 Further details on structural detailing are provided in ACI Detailing Manual 2004. Analysis and Design (NSCP Section 408) NSCP Section 408.2 requires structural concrete members to be proportioned for adequate strength design using load factors and strength reduction may be used as specified in NSCP Section 409. Alternative procedure for strength design may be used as provided in NSCP Section 426. NSCP Section 424 permits the use of "working stress design (WSD)". This is applicable for non-prestressed reinforced concrete members which are allowed to be designed using service loads (without load factors) and permissible load stresses. Load Combinations and Load Factors (NSCP Section 409.3) NSCP Section 409.3.1 provides the recommended load factors and combinations of loads to be investigated. 4-42 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Strength (NSCP Section 409.4 and 409.5) NSCP Section 409.4 provides the recommended strength reduction factor while NSCP Section 409.5 Design Strength for Reinforcement, states that yield strength used in calculation shall not exceed 550 MPa, except in prestressing tendons and for transverse reinforcement in NSCP Sections 410.10.3 and 421.3.5.4. Deflection Control (NSCP Section 409.6) NSCP Table 409-1 provides the Minimum Thickness of Non-prestressed Beams or One-way Slab. NSCP Section 409.6.2.5 recommends the need to modify immediate deflection to account for longtime deflection, creep and shrinkage by a factor stated therein when no comprehensive analysis is prepared. NSCP Section 409.6.3 governs the minimum thickness of nonprestressed two way slab. NSCP Section 409.6.3.3 provides computations for thickness. NSCP Section 409.6.3.2 contain provisions for flat slabs. NSCP Table 409-3 provides minimum thickness of flat slabs NSCP Table 409-2 shows the Maximum Permissible Computed Deflection. Flexure and Axial Load (NSCP Section 410) Flexure and axially loaded members shall be analyzed using accepted classical methods with due consideration for all possible loads and load combinations. This section of the code provides basic assumptions and minimum requirements that needs to be satisfied. Shear and Torsion (NSCP Section 411) Simultaneous to other stresses, members subjected to shear and torsion shall proportioned and reinforced using this section of the code which provides basic assumptions and minimum requirements. Development Length and Splice Lengths of Reinforcement (NSCP Section 412) Consistent with the requirements for reinforced concrete in reinforcement placement, detailing, and arrangement, equally important are splicing and development length. Splicing requires the tensile or compressive stress generated by loads on the reinforcement to prevent slippage of the rebar from its position which may cause failure when it is not being able to generate the internal stress resistance between the concrete and rebar. Two Way Slab (NSCP Section 413) Basic design procedure for conventional and flat slab system. 4-43 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Axial Load Strength where: Ø ØPn = 0.85Ø[.85f'c(Ag-Ast) + Astfy] = 0.65 Spiral Column steel ratio ρ= As/Ag where: As = area of non prestressed longitudinal tension reinforcement ρmin = 0.01 ρmax=0.06 Ag = gross area of section Minimum spiral diameter is Ø10 mm bars and a max of Ø16 mm. Volumetric spiral reinforcement ratio ρs, shall not be less than the value given by: Ag where: = ρs = 0.45(Ag/Ach – 1)f'c/fyt gross area of section Ach = area of section measured from the outer edge of the spiral reinforcement fyt shall not exceed 700 Mpa Design Axial Strength ØPn where: Ø = 0.80Ø[.85f'c(Ag-Ast) + Astfy] = 0.75 Slenderness effect (NSCP 410.11) 1. For members unbraced against sidesway klu/r ≤22 2. Members braced against sidesway where: klu/r ≤ 34 – 12(M1/M2) ≤ 40 k = the effective length factor M1 = the smaller absolute value of the two end moments acting on the column lu = clear height of the column 4-47 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.5.2 4.5.3 General Design Approach The structural engineer must be able to check the compliance of structural design drawings and specifications in the code of standard practice. Material This section shall apply to material test reports conforming to testing standards set by the American Standard for Testing and Materials (ASTM). Such standards are specified in the following local and international codes: National Structural Code of the Philippines (NSCP) 2010 Sixth Edition: Buildings, Towers, and Other Vertical Structures (Volume I); Chapter 5, Part 1 – Specifications for Steel Members. International Conference of Building Officials Uniform Building Code 1997 (Volume 2). American Institute of Steel Construction 2010: Ninth Edition for Allowable Strength Design (ASD) and Thirteenth Edition for Load Resistance and Factor Design (LRFD). Materials included are hot-rolled structural shapes, structural tubing, pipe, plates, bars, and sheets. Also covered are unidentified steel, rolled heavy shapes, steel castings and forgings, bolts, washers and nuts, anchor rods and threaded rods, welding, and headed stud anchors. 4.5.4 Structural Steel Design Requirements, NSCP Chapter 5 NSCP Section 501 General provisions NSCP Section 502 Design Requirements for ASD and LRFD Design for Tension Members (NSCP Section 504) This section shall apply to designing tension members as specified in NSCP 2010, Referral Code of the NBCP. The DGCS shall also adopt additional design guidelines from international standards. This covers the following topics: Slenderness Limitation (NSCP Section 504.1), Tensile Strength (NSCP Section 504.2), Effective Net Area (NSCP Section 504.3), Built-up Members (NSCP Section 504.4), Pin-connected Members (NSCP Section 504.5), and Eyebars (NSCP Section 504.6). Slenderness Ratio (NSCP Section 504.1) As specified in the governing code, the slenderness ratio, L/r, preferably should not exceed 300, but is not applicable to rods or hangers in tension. The specification shall aid in the design of bracing members, tension chords and internal ties in trusses and lattice girders. Tensile Strength (NSCP Section 504.2) The structural engineer shall consider two limit states for tension member design, tensile yield strength and tensile rupture strength. 4-52 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Members fail either by excessive deformation or by fracture. A member fails by excessive deformation if the stress on the gross section is greater than the yield stress, Fy. And if the stress on the net section is greater than the tensile strength, Fu, a member fails by fracture. The design strength and the allowable tensile strength shall be the lower value determined based on the limit states mentioned above. Effective Net Area (Ae) (NSCP Section 504.3) The effective net area of tension members, as specified in the governing code, is given by: where: Ae U Ae = AnU = = effective net area of tension members, mm2 shear lag factor An = effective net area and is the difference between the gross area (Ag) and the area of bolt holes, mm2 The structural engineer shall take into consideration that different U values apply for tension members provided in NSCP Table 504.3.1. Shear lag factors for connections to tension members of different cases are: 1. Tension members where tension load is transmitted directly to each of crosssectional elements by fasteners or welds. 2. Tension members, except plates and HSS, where tension load is transmitted to some but not all of the cross-sectional elements by fasteners or longitudinal welds. 3. Tension members where tension load is transmitted by transverse welds to some but not all of the cross-sectional elements. 4. Plates where the tension load is transmitted by longitudinal welds only. 5. Round HSS with a single concentric gusset plate. 6. Rectangular HSS. 7. W, M, S or HP shapes. 8. Single angles. Pin-Connected Members (NSCP Section 504.5) Pin – connected members in tension are subjected to several types of failure. The design strength and allowable tensile strength shall be designed based on the lower value obtain from the limit states of tensile rupture, shear rupture, bearing and yielding. 4-53 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures As specified in NSCP 504.5, the following shall apply: 1. Tension acting on the net effective area Pn = 2tbeffFu (NSCP 504.5-1) Pn = 0.6FuAsf (NSCP 504.5-2) 2. Shear acting on the effective area Sf = 0.75 (LRFD) Ωsf = 2.0 (ASD) 3. Tension acting on the gross section Pn = FyAg t = 0.90 (LRFD) 4. Bearing Pn = 1.8FyApb = 0.75 (LRFD) Ωt = 1.67 (ASD) Ω = 2.0 (ASD) (NSCP 504.2-1) (NSCP 510.7-1) An example is provided for pin-connected tension members. where: Pn = force on area Fy = specified minimum yield stress of steel used MPa Rn = nominal bearing strength Apb = projected bearing area Ag = gross area of member, mm2 Fu = Asf = A specified aluminum tensile stress of steel used 2t(a+d/2), mm2 beff = = shortest distance from edge of the pin hole to the edge of the member measured parallel to the applied force d = pin diameter, mm t = 2t + 16, mm but not more than the actual distance from the pinhole to the edge of the member measured perpendicular to the force. thickness of plate, mm Eyebars (NSCP Section 504.6) An example is provided for an eyebar connection. Example: W, Single-angle, WT, Rectangular HSS, Round HSS, Double Angle Tension Members Designing a member with given loads in tension and member length. 4-54 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Example: Eyebar Tension Members Ω = 2.00 Verifying member strength with given loads in tension, pin diameter and eyebar dimensions. Pn/Ω > Pa 5. Calculate the available shear rupture strength. 1. Determine material properties for ASTM Designation, Fy and Fu (AISC Table 24); and geometric properties of the member. Pn = 0.6FuAsf Asf = 2t(a+d/2) 2. Check dimensional requirements such as t, w, d. dh, R (NSCP Section 504.6.2) Using LRFD 3. Calculate the required tensile strength, Pu (LRFD) or Pa (ASD). Note that Pu is a factored load. Φ = 0.75 4. Calculate the available tensile yielding strength at the eyebar body (at w) ΦPn > Pu Determine An and Pn. Using ASD Ω = 2.00 5. Pn/Ω > Pa 6. Calculate the available bearing strength. Determine the tensile yield strength. Using LRFD Φ = 0.90 Pn = 1.8FyApb ΦPn > Pu Using LRFD Using ASD Φ = 0.75 Ω = 1.67 ΦPn > Pu Pn/Ω > Pa Using ASD The structural engineer shall take note that the pin should also be checked for shear yielding and bearing. Ω = 2.00 Pn/Ω > Pa Example: Find Ae of a Plate with Staggered Bolts 7. Calculate the available tensile yielding strength. 1. Calculate the net hole diameter, dnet. Pn = FyAg Using LRFD 2. Φ = 0.90 ΦPn > Pu dnet = dh + 1/16 in. Compute the net width for all possible paths across the plate, w. w = 14 – Ʃdnet + Ʃs2/4g Calculate for An. Note that the nearest path (smallest value) shall govern in the design. Using ASD Ω = 1.67 3. Pn/Ω > Pa 8. Determine the governing strength from the lowest calculated values. Pn = FyAg 4. 4.5.5 Determine U. Determine Ae. Ae = AnU Design for Compression (NSCP Section 505) This section shall apply to designing compression members as specified in NSCP 2010, Referral Code of the NBCP. The DGCS shall also adopt additional design guidelines from international standards. 4-56 4-57 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures This section covers the following topics: general provisions (NSCP Section 505.1), effective length and slenderness (NSCP Section 505.2), compressive strength for flexural buckling of members without slender elements (NSCP Section 505.3), compression and bending (NSCP Section 508.1-508.3), composite compression members (NSCP Section 509.2), and compressive strength of connecting elements (NSCP Section 510.4.4). Effective Length As specified in the governing code, the slenderness ratio, KL/r, preferably should not exceed 200. Flexural Buckling of Members without Slender Elements As mentioned in the governing standards, this section shall apply to compression members with non-slender (compact and non-compact sections), for uniformly compressed elements. This includes non-slender built-up I-shaped columns and non-slender HSS columns. The nominal compressive strength, Pn, shall be based on the limit state of flexural buckling. Flexural buckling is a deflection caused by bending about the axis corresponding to the largest slenderness ratio. The equation for determining nominal compressive strength is given by: Pn = FcrAg Torsional and Flexural-Torsional Buckling of Members without Slender Elements This section is most commonly applicable to double angles and Tee sections which are singly symmetrical shapes subject to torsional buckling and flexural – torsional buckling. As specified in the governing code, the nominal compressive strength, Pn, shall be determined based on the two limit states mentioned above, torsional and flexural – torsional buckling. Available strength of the members is available in AISC Manual Part 4. Single Angle Compression Members This section as stated in the governing code shall apply to single angle compression members wherein the nominal compressive strength, Pn, shall be determined for axially loaded members, as well as those subject to the slenderness modification, provided the members meet the criteria. Available strength of the members is available in AISC Manual Part 4. Built-Up Members The analysis for built – up compression member is the same for any other compression member if the cross-sectional properties are known. However, the parts of the cross section must be properly connected. 4-58 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Requirements for members composed of two or more rolled shapes and for members composed of plates or combination of plates and shapes with related connections are specified in the governing code. Member with Slender Elements This section shall apply to members with slender sections for compressed members. The design is similar to members without slender elements except that a reduction factor is introduced to modify the formulas. Appropriate reduction factors in available strength are incorporated in AISC Manual Part 4. The nominal compressive strength, Pn, shall be based on the limit states of torsional, flexural and flexural – torsional buckling. Example: W-Shape Column Design Pinned Ends Design a W-shape column to carry specific loads in axial compression, given column length and shape. 1. Calculate the required strength, Pu (LRFD) or Pa (ASD). Note that Pu is a factored load. 2. Select a section using AISC Manual Table 4-1. 3. Find K. For a pinned-pinned connection, K=1.0. Y-Y axis will govern for unbraced lengths same in both x-x and y-y directions. And for all W-shapes, rx exceeds ry. 4. Enter the table with an effective length, KL and proceed until reaching the least weight shape with an available strength that equals or exceeds the required strength. 5. Select column section (for adjustments). 6. Determine available strength in compression, y-y axis effective length using AISC Manual Table 4-1. Using LRFD ΦPn > Pu Using ASD Pn/Ω > Pa Example: W-Shape Column Design with Intermediate Bracing Redesigning Example C1a assuming the column is laterally braced about the y-y axis and torsionally braced at the midpoint. 1. Calculate the required strength, Pu (LRFD) or Pa (ASD). Note that Pu is a factored load. 2. Select a column using AISC Manual Table 4-1. 4-59 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures ΦPn > Pu Using ASD Pn/Ω > Pa 7. Repeat procedures (2) to (6) for all members. Example: Double Angle Compression Member without Slender Elements Verifying member strength with given loads in axial compression, column dimensions and column length which are pinned at both ends. 1. Determine material properties for ASTM Designation, Fy and Fu (AISC Table 23); and geometric properties of member (AISC Table 1-15 for Double angles and AISC Table 1-17 for MC shapes). 2. Calculate the required strength, Pu (LRFD) or Pa (ASD). Note that Pu is a factored load. 3. Select column (AISC Table 4-9) 4. Find K and compute for KL value for both x and y-axis. 5. Determine the available strength in axial compression for both axes. (AISC Table 4-9) Using LRFD ΦPn > Pu Using ASD Pn/Ω > Pa 6. Determine the available strength from the lowest value of the two axes computed. Example: Design of Rectangular HSS Compression Member with Slender Elements Selecting a rectangular HSS member with given loads in axial compression, column dimensions and column length. The base is fixed while the top is pinned. 1. Determine material properties for ASTM Designation, Fy and Fu (AISC Table 23). 2. Calculate the required strength, Pu (LRFD) or Pa (ASD). Note that Pu is a factored load. 3. Find K. Solve for KLx and KLy. 4. Enter AISC Table 4-3 and proceed across the page until the lightest section is found with an available strength that is equal to or greater than the required strength. 5. Determine the available strength in axial compression. Using LRFD Using ASD 4.5.6 Pn/Ω > Pa Flexural Members This section shall apply to designing flexural members as specified in NSCP 2010, Referral Code of the NBCP. The DGCS shall also adopt additional design guidelines from international standards. The section contains provisions for determining flexural strength of members subject to simple bending about a principal axis. Provisions for I shaped members, channels, HSS, tees, double angles, single angles, rectangular bars, rounds and unsymmetrical shapes. The selection and evaluation of all members to be used is based on the deflection requirements and strength. The design strength shall be determined based on flexural strength, ϕMn or the allowable flexural strength, Mn/Ω. Doubly Symmetric Compact I-Shaped Members and Channels Bent about their Major Axis This shall apply to members with compact I – shaped beam and channel cross sections subject to bending about their major axis as specified in the governing code. The only limit state to consider is lateral – torsional buckling. Almost all rolled wide – flange shapes listed identified by the governing code are qualified to be designed by the provisions of this section. Doubly Symmetric I-Shaped Members with Compact Webs and Non compact or Slender Flanges Bent about their Major Axis The strength of shapes designed according to this section is limited by local buckling of the compression flange. Few rolled wide – flange shapes are subject to this criterion, i.e. having noncompact flanges. Other I-Shaped Members with Compact or Non compact Webs Bent About Their Major Axis As specified in the governing code, this section shall apply to doubly symmetric I – shaped members bent with noncompact webs and singly symmetric I – shaped members (having different flanges) with compact or noncompact webs. Doubly Symmetric and Singly Symmetric I-Shaped Members with Slender Webs Bent About Their Major Axis As specified in the governing code, this section shall apply to doubly symmetric I – shaped members with slender webs, also known as “plate girders”. I-Shaped Members and Channels Bent About Their Minor Axis As specified in the governing code, this section shall apply to I – shaped members and channels bent about their minor axis. The majority of W-, M-, C-, and MCshapes have compact flanges which can develop the full plastic Mp about the minor axis. ΦPn > Pu 4-62 4-63 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Square and Rectangular HSS and Box-Shaped Members As specified in the governing code, this section shall apply to square and rectangular HSS, and doubly symmetric box – shaped members bent about either axis, having compact and noncompact webs and compact and noncompact slender flanges. Round HSS and Pipes This section shall apply to both tubes and pipes. As specified in the governing code, this section shall apply to round HSS having D/t ratios of less than 0.45E/Fy. Tees and Double Angles Loaded in the Plane of Symmetry As specified in the governing code, this section shall apply to tees and double angles loaded in the plane of symmetry. The specification provides a check for flange local buckling which applies only when the flange is in compression due to flexure. Single Angles As specified in the governing code, this section shall apply to single angles with and without lateral restraint along their length. The structural engineer shall consider the geometric axis of bending. Also, when designing single angles without continuous bracing using the geometric axis design provisions, My should be multiplied by 0.80. Rectangular Bars and Rounds As specified in the governing code, this section shall apply to rectangular bars bent about either geometric axis and rounds. The structural engineer shall consider solid square, rectangular and round bars, with the exception of rectangular bars bent about the strong axis, are not subject to lateral-torsional buckling; rectangular bar bent about the strong axis are subject to lateral torsional buckling; and local buckling does not apply to any bars. Unsymmetrical Shapes As specified in the governing code, this section shall apply to all unsymmetrical shapes, except single angles. However, the structural engineer is advised to have an appropriate investigation and good engineering judgment for this section to be applied. Proportions for Beams and Girders According to the governing code, this section states the requirements of members proportioned on the basis of flexural strength of the section. Specific provisions apply for particular members such as beams and girders with hole reductions, for I – shaped members, members using cover plates and built – up beams. 4-64 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Example: I-Shaped Flexural Member in Minor-Axis Bending Selecting a member with given uniform loads, and limit to live load deflection L/240. The beam is simply supported and is braced at ends only. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3). 2. Calculate the required flexural strength, Mu (LRFD) or Ma (ASD). Note that Mu is a factored load. 3. Determine the minimum required moment of inertia. Solve for Δmax and Ireq. 4. Choose the lightest section from AISC Manual Table 3-3. The structural engineer should consider deflection governing the design for light sections. 5. Select a trial section and take note of material’s geometric properties, i.e. Sy, Zy, Iy. 6. Check flange slenderness, i.e. if compact or noncompact. 7. Calculate the nominal flexural strength, Mn. 8. Determine the available flexural strength. Using LRFD Φ = 0.90 ΦMn > Mu Using ASD Ω = 1.67 Mn/Ω > Ma Example: HSS-Flexural Member with Noncompact Flanges Selecting a member with given uniform loads, and limit to live load deflection L/240. The beam is simply supported and is braced at ends only. Selection of member using AISC Manual. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3). 2. Determine the required strength, Mu (LRFD) or Ma (ASD). Note that Mu is a factored load. 3. Compute for the minimum moment of inertia, Imin. Solve for Δmax 4. Select HSS member with a minimum Ix from (3) using ASIC Table 1-11; and having adequate available flexural strength using ASIC Table 3-12. 5. Determine required strength using ASIC Table 3-12. 6. Check available flexural strength. 4-69 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures ΦMn > Mu Using ASD Ω = 1.67 Mn/Ω > Ma The structural engineer shall take note that for a combination of non-compact flange and compact web, the specification provides different equation in solving for the nominal flexural strength. Example: HSS Flexural Member with Slender Flanges Verifying a member strength with given nominal uniform loads (dead load and live load) and limit to live load deflection L/240. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3). 2. Compute for the required flexural strength, Mu (LRFD) or Ma (ASD). Note that Mu is a factored load. 3. Obtain member flexural strength using AISC Manual Table 3-13. Using LRFD ΦMn > Mu Using ASD Mn/Ω > Ma 4. Check for member deflection. The deflection should be less than the given limit to live load deflection of L/240. Example D9. Pipe Flexural Member Selecting a member with given uniform loads assuming the beam has no limit to deflection. The beam is simply supported and is braced at ends only. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3). 2. Compute for the required flexural strength, Mu (LRFD) or Ma (ASD). Note that Mu is a factored load. 3. Select a member from AISC Manual Table 3-15 with the required flexural strength. 4. The available flexural strength of the member shall then be greater than the required flexural strength. Using LRFD ΦMn > Mu Using ASD Mn/Ω > Ma 4-71 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.5.10 4.5.11 Plate Girders This topic is included in Section 4.5.11. Connections This section shall apply to design of connections subjected and/or not subjected to cyclic loading as specified in NSCP 2010, Referral Code of the NBCP. The DGCS shall also adopt additional design guidelines from international standards. Bolts and Threaded Parts The provisions set forth by the governing code shall apply to the use of high – strength bolts. As mentioned, all joint surfaces shall be free of scale, except tight mill scale. Installation shall be assured by the any of these methods: turn – of – nut method, direct tension indicator, calibrated wrench or alternative design bolt. The structural engineer shall refer to the governing code for the size and use of holes and the minimum and maximum dimensions for both spacing and edge distance. Design strengths shall be determined based on the following limit states: tensile rupture, shear rupture, combined tensile and shear rupture, slip and tension and shear in slip – critical connections. Welds The provisions shall apply to groove welds, fillet welds, plug and slot welds and combination of welds. The governing code specifies the effective area and the limitations for each kind in terms of the minimum requirements for application. Affected Elements of Members and Connecting Elements According to the governing code, this section shall apply to elements of members at connections and connecting elements such as plates, gussets, angles and brackets. The design strengths and allowable strengths shall be determined based on the following limit states: for elements in tension – tensile yielding and tensile rupture; shear – shear yielding and shear rupture; block shear – block shear rupture; and in compression – yielding and buckling. Fillers In choosing electrode for use in completing joint – penetration grove welds subject to tension normal to the effective area, the electrode shall comply with the requirements for matching filler metals provided by the governing code. Splices When tensile forces due to applied tension or flexure are to be transmitted through splices in heavy sections, by complete penetration groove welds, material notch – toughness requirements, weld access hole details and thermal cut surface preparation and inspection requirements shall apply. This provision, however, is not applicable to built – up members welded prior to shape assembly. This section is as stated in the governing code. 4-77 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Bearing Strength The provisions for bearing strength specified in the code shall apply to the bearing strength at bolt holes to be determined based on the limit state of bearing. As mentioned in the governing code, the sum of the bearing resistances of the individual bolts shall apply to connections. The structural engineer is advised to check the bearing strength for bearing type and slip – critical conditions. Column Bases and Bearing on Concrete According to governing code the provisions are made for transferring column loads and moments to the footings and foundations. The design strength and allowable bearing strength shall be determined based on the limit state of concrete crushing. Anchor Rods and Embedments The anchor rods, as specified in the code, shall be designed to provide the required resistance to loads on the structure at the base of columns. The design shall be in accordance with requirements for threaded parts. The designer shall take into consideration the base plate hole size, anchor rod setting tolerance, and the horizontal movement of the column when designing anchor rods resisting horizontal forces on the base plate. Flanges and Webs with Concentrated Forces As specified in the governing code, this section shall apply to single – and double – concentrated force applied normal to the flange(s) of wide flange sections and similar built – up shapes. The structural engineer shall take note that provision for the use of stiffeners shall apply to members with required strength exceeding the available strength. Such provisions are available in the governing code. Example: All-Bolted Double Angle Connection Selecting an all bolted double-angle connection between a given and column flange supporting a given beam end reactions, dead and live loads. Also given are bold diameter and hole dimension. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3) and geometric properties (AISC Table 1-1). 2. Determine required bolt strength, Ru (LRFD) or Ra (ASD). Note that Ru is factored. Check governing specifications for limiting states in bearing, shear yielding, shear rupture, and block shear rupture on the angles, and shear on the bolts. Using LRFD ΦRn > Ru 4-78 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Using ASD Rn/Ω > Ra 3. For uncoped beams, beam web shall be checked for bolt bearing. Using LRFD ΦRn > Ru Using ASD Rn/Ω > Ra 4. Supporting member flange shall be checked for bolt bearing. Using LRFD ΦRn > Ru Using ASD Rn/Ω > Ra Example: Bolted/Welded Double Angle Connection Substituting welds for bolts in the support legs of a double angle connection using a given weld electrode. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3) and geometric properties (AISC Table 1-1). 2. Determine required weld strength, Ru (LRFD) or Ra (ASD). Note that Ru is factored. Select weld size and length which shall have a tfmin lesser than bolt tf. Using LRFD ΦRn > Ru Using ASD Rn/Ω > Ra 3. Determine minimum angle thickness, tmin. Check if tmin < weld size. 4. Checks shall be done on the following limit states: bolt shear and the angles for bolt bearing, shear yielding, shear rupture, and block shear rupture. Using LRFD ΦRn > Ru Using ASD Rn/Ω > Ra 5. Beam web shall be checked for bolt bearing. Using LRFD ΦRn > Ru Using ASD 4-79 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Rn/Ω > Ra 6. Supporting member flange shall be checked for bolt bearing. Using LRFD ΦRn > Ru Using ASD Rn/Ω > Ra 4.5.14 Factored load ≤ Factored Strength Example: All Welded Double Angle Connection As mentioned in NSCP 2010, the design shall be in accordance with the following equation: Designing an all welded double angle connection between a given beam and column flange through the aid of AISC Table 10-3. Also given is the weld electrode. 1. Determine material properties such as ASTM Designation, Fy and Fu (AISC Table 2-3) and geometric properties (AISC Table 1-1). where: 2. Determine required weld strength, Ru (LRFD) or Ra (ASD). Note that Ru is factored. Using ASD Rn/Ω > Ra 3. Determine minimum angle thickness, tfmin. Check if tmin < tf. 4.5.12 4.5.13 4. Minimum angle thickness shall be checked, tmin. Column Base Plate and Beam Bearing Plates This topic is included in Section 4.5.11. Cold-Formed Steel Structures This section shall apply to cold-formed steel structural members design as specified in NSCP 2010, Referral Code of the NBCP. The DGCS shall also adopt additional design guidelines from international standards. Such standards are as mentioned in “Material” and other reference codes: 4-80 American Iron and Steel Institute 1969: Specification for the Design of ColdFormed Steel Structural Members 4.5.15 4.5.16 Ru = φRn Ru = required strength Φ = resistance factor Rn Design the weld between the angle leg and the beam to weld such that twmin is lesser than tw. ΦRn > Ru Load and Resistance Factor Design To satisfy the requirements of the governing code, the design strength of each structural component shall be equal or shall exceed the required strength determined on the basis of LRFD load combinations. This can be written as: Note: The example shown above shall be applicable when the coped section does not control the design. If the relative size of the cope to the overall size of the beam cannot be determined, use AISC Manual Part 9. Using LRFD This section pertains to the design of structural members cold-formed to shape from carbon or low-alloy steel sheet, strip, plate, or bar not more than 25 mm in thickness and used for load-carrying purposes specified in in the governing code. The structural engineer shall apply specifications such as the use of design strength method, second-order analysis and additional provisions which he/she may deem adequate for the purpose. φRn = = nominal strength design strength Cold-Rolled Steel and Built-Up Members This section shall be in conjunction with “6.11. Cold-Formed Steel Structures” as presented in NSCP 2010, Referral Code of the NBCP. Plastic Design The purpose of this Specification is to provide criteria using plastic design as presented in various sections in NSCP 2010, Referral Code of the NBCP. The DGCS shall also adopt additional design guidelines from international standards. Members designed by plastic design would reach the point of failure under the factored loads but are safe under actual service or working loads. Design Consideration Although plastic design is specified in design codes, local and international, the governing design standard for structural members is the Load and Resistance Factor Design. American Iron and Steel Institute 2001: Specification for the Design of ColdFormed Steel Structural Members 4-81 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design procedure: 1. After determining the design stresses from structural analysis (e.g. shear and moment diagram). Maximum moments and shears are determined. 2. Use these maximum moment and shear in determining the section required to satisfy the following: Allowable stresses based on wood specie to be used and stress grade of the material Factoring in the different capacity reduction factors Case to case detailing issues that may affect design (e.g. notches) 3. Detail as necessary Flexure According to NSCP Section 616.2.1, a beam of circular section may be assumed to have the same strength in flexure as a square beam having the same crosssectional area. If a circular beam is tapered, it shall be considered a beam of variable cross section. In NSCP Section 616.2.2, it is stated that if possible, notching of beams should be avoided. Notches in sawn lumber bending members shall not exceed one-sixth the depth of the member and shall not be located in the middle third of the span. As in all flexural members, the standard formula for flexure is: 𝑓𝑓𝑏𝑏 = 𝑀𝑀𝑀𝑀 𝐼𝐼 but since we deal mostly with rectangular sections: Horizontal Shear 𝑓𝑓𝑏𝑏 = 6𝑀𝑀 𝑏𝑏𝑑𝑑 2 The maximum horizontal shear stress in a solid-sawn wood shall not exceed that calculated by means of: 𝑓𝑓𝑣𝑣 = 3𝑉𝑉 2𝑏𝑏𝑏𝑏 The actual shear fv shall not exceed the allowable for the species and the grade as given in NSCP Table 6.1 adjusted for duration of loading, as provided in NSCP Section 615.3.4. Horizontal Shear in Notched Beams When rectangular-shaped girder, beams or joists are notched at points of support on the tension side, they shall meet the design requirements of that section in bending and in shear. Provisions and equations to be used regarding horizontal shear in notched beams are stated in NSCP Section 616.4. 4-83 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design of Joints in Shear Eccentric connector and bolted joints and beams support by connectors or bolt shall be designed so that fv does not exceed the allowable unit stresses in horizontal shear: where: 𝑓𝑓𝑣𝑣 = 𝑑𝑑𝑒𝑒 (with connectors) = 𝑑𝑑𝑒𝑒 (with bolts or lag screws) = 3𝑉𝑉 2𝑏𝑏𝑑𝑑𝑒𝑒 depth of the member less the distance from the unloaded edge of the member to the nearest edge of the nearest connector. depth of the member less the distance from the unloaded edge of the member to the center of the nearest bolt or lag screw. Allowable unit stresses in shear for joint involving bot or connectors loaded perpendicular to grain may be 50% greater than the horizontal shear values as set forth in NSCP Table 6.1 and, provided that the joint occurs at least five times the depth of the member from its end. When the joint is less than five times the depth of the member from its end, the included shear stress is calculated by: 𝑓𝑓𝑣𝑣 = 3𝑉𝑉 𝑑𝑑 ( ) 2𝑏𝑏𝑑𝑑𝑒𝑒 𝑑𝑑𝑒𝑒 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures For bearing of less than 150 mm in length and not nearer than 75 mm to the end of a member, the maximum allowable load per square mm may be obtained by multiplying the allowable unit stresses in compression perpendicular to grain by the factor indicated by: 𝐶𝐶𝑏𝑏 = 𝑙𝑙𝑏𝑏 + 0.375 𝑙𝑙𝑏𝑏 In which 𝑙𝑙𝑏𝑏 is the length of bearing in mm measured along the grain of the wood. The multiplying factors for indicated length of bearing on such small areas as plates and washers is provided in Table 4-29. Table 4-29 Multiplying Factors for Length of Bearing on Small Areas Length of Bearing (mm) 13 25 38 50 75 100 150 or more Multiplying Factor 1.75 1.38 1.25 1.19 1.13 1.10 1.00 In using the preceding equation and table for round washers or bearing areas, use a length equal to the diameter. In joists supported on a ribbon or ledger board and spiked to the studding, the allowable stress in compression perpendicular to grain may be increased 50%. And the 50% increase in design values for shear in joints does not apply. Compression Perpendicular to Grain In application where deformation is critical, the following equation shall be used to calculate the compression-perpendicular-to-grain design values. where: 𝐹𝐹𝐶𝐶⊥ = ′ = 𝐹𝐹𝐶𝐶⊥ 𝐹𝐹𝑐𝑐⊥ ′ = 0.73𝐹𝐹𝑐𝑐⊥ compression-perpendicular-to-grain values from NSCP Table 6.1 critical compression-perpendicular-to-grain value The duration of load modification factors given in NSCP Section 615.3.4 shall not apply to compression-perpendicular-to-grain values for sawn lumber. The allowable unit stresses for compression perpendicular to grain in NSCP Table 6.1 and 6.17 apply to bearings of any length at the ends of the beam and to all bearing 150 mm or more in length at any other location. 4-84 4-85 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 4.6.4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Column Design Flexure and Axial Compression According to NSCP Section 617, a simple column consists of a single piece or of pieces properly glued together to form a single members. Spaced columns are formed of two or more individual members with their longitudinal axes parallel, separated at the ends and middle points of their length by blocking and joined at the ends by timber connectors capable of developing the required shear resistance. Built-up columns, other than connector-joined spaced columns and glued-laminated columns, shall not be designed as solid columns. Members subjected to both flexure and axial compression shall be proportioned that: 𝑓𝑓𝑏𝑏𝑏𝑏 𝑓𝑓𝐶𝐶 ≤1 𝐹𝐹𝑐𝑐 ′ 𝐹𝐹′𝑏𝑏𝑏𝑏 − 𝐽𝐽𝑓𝑓𝑐𝑐 The value of J shall be derived as: For simple solid columns, l/d shall not exceed 50. 4.6.5 The effective column length, le, shall be used in design given in NSCP Section 617.3. Actual column length, l, may be multiplied by the factors given the table in NSCP Section 617.3. Except that J shall not be less than zero nor greater than one (0 ≤ J ≤ 1). F’c and K shall be determined in accordance with the provision in NSCP Section 617.3, except (1) when checking the design in the plane of bending the slenderness ratio, 𝑙𝑙𝑒𝑒 /d, in the plane of bending shall be used to calculate F’c and J and (2) when checking the design perpendicular to the plane of bending the slenderness ratio, 𝑙𝑙𝑒𝑒 /d in the plane of bending shall be used to calculate F’c and J shall be set equal to zero. Flexure And Axial Tension Members subjected to both flexure and axial tension shall be so proportioned that: 𝑓𝑓𝑏𝑏 𝑓𝑓𝑡𝑡 + ≤1 𝐹𝐹𝑡𝑡 𝐹𝐹𝑏𝑏 ∗ where: 𝐹𝐹𝑏𝑏 ∗ 𝐹𝐹𝑏𝑏 ∗∗ 𝐹𝐹𝑇𝑇 ′ 𝑓𝑓𝑡𝑡 𝑓𝑓𝑏𝑏 𝑓𝑓𝑏𝑏 − 𝑓𝑓𝑡𝑡 ≤1 𝐹𝐹𝑏𝑏 ∗∗ where: 𝐹𝐹𝑏𝑏 (𝐶𝐶𝐷𝐷 )(𝐶𝐶𝑀𝑀 )(𝐶𝐶𝑡𝑡 )(𝐶𝐶𝑣𝑣 ) for glulam = 𝐹𝐹𝑏𝑏 (𝐶𝐶𝐷𝐷 )(𝐶𝐶𝑀𝑀 )(𝐶𝐶𝑡𝑡 )(𝐶𝐶𝐿𝐿 )(𝐶𝐶𝐹𝐹 )(𝐶𝐶𝑟𝑟 )(𝐶𝐶𝑖𝑖 ) for sawn lumber = = = Truss Compression Chords tabulated bending design value multiplied by all applicable adjustment factors except volume factor,𝐶𝐶𝑣𝑣 = = 4.6.6 In the case of spaced columns, this combined stress formula maybe applied only if the bending is in a direction parallel to the greater d of the individual member. 𝐹𝐹𝑏𝑏 (𝐶𝐶𝐷𝐷 )(𝐶𝐶𝑀𝑀 )(𝐶𝐶𝑡𝑡 )(𝐶𝐶𝐹𝐹 )(𝐶𝐶𝑟𝑟 )(𝐶𝐶𝑖𝑖 ) for sawn lumber tabulated bending design value multiplied by all applicable adjustment factors except beam stability factor,𝐶𝐶𝐿𝐿 = Spaced Columns Effect of buckling of a 50 mm by 200 mm or smaller truss compression chord having effective buckling lengths of 2.40 m or less with 9 mm or thicker plywood sheathing nailed to the narrow face of the chord in accordance with appreciate standards shall be determined from the equation: = = 𝑘𝑘 − 11 𝐸𝐸 𝐾𝐾 = 0.671 √ 𝐹𝐹𝑐𝑐 Combined Load Design and 𝐽𝐽 = 𝑙𝑙𝑒𝑒 − 11 𝑑𝑑 𝐹𝐹𝑏𝑏 (𝐶𝐶𝐷𝐷 )(𝐶𝐶𝑀𝑀 )(𝐶𝐶𝑡𝑡 )(𝐶𝐶𝐿𝐿 ) for glulam allowable tension design value parallel to grain actual unit stress in tension parallel to grain actual unit stress for extreme fiber in bending 𝐶𝐶𝑇𝑇 = 1 + 0.62 𝑙𝑙𝑒𝑒 𝐸𝐸0.05 𝐶𝐶𝑇𝑇 = buckling of the stiffness factor 𝑙𝑙𝑒𝑒 = effective buckling length used in design of chord for compression loading = Modulus of Elasticity from tables of allowable unit stress, N/mm2 𝐸𝐸0.05 E = = 0.819E for machine-stress-rated lumber 0.589E for visually graded lumber The value of 𝐶𝐶𝑇𝑇 determined from this equation are for wood seasoned to a moisture content of 19% or less at the time the plywood is nailed to the chord. For 4-86 4-87 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Bolts wood that is unseasoned at the time of plywood attachment, 𝐶𝐶𝑇𝑇 shall be determined from 𝐶𝐶𝑇𝑇 = NSCP Table 6.17 provides the safe loads in KN for bolts in shear in seasoned lumber. 1 + 0.331 𝑙𝑙𝑒𝑒 𝐸𝐸0.05 When wood is connected to concrete or masonry, the allowable shear value is permitted to be “one half the tabulated double shear values for a wood member twice the thickness of the member attached to the concrete or masonry". For chords with an effective buckling length greater than 2.40 m, 𝐶𝐶𝑇𝑇 shall be taken as the value for a chord having an effective length of 2.40 m. The buckling stiffness factor does not apply to short columns or trusses used under wet conditions. The allowable unit compressive stress shall be modified by the buckling stiffness factor when a truss chord is subjected to combined flexure and compression and the bending moment in the direction that induces compression stresses in the chord face to which the plywood is attached. Nails and Spikes Safe Lateral Strength: When used to fasten wood members together. The maximum load causing shear and bending that a common wire nail driven perpendicular to grain of the wood shall not exceed the safe lateral strength of the wire nail or spike in NSCP Table 6.21. The buckling stiffness factor 𝐶𝐶𝑇𝑇 shall apply as follows: 𝑙𝑙 𝑑𝑑 Short column ( 𝑒𝑒 𝑜𝑜𝑜𝑜 11 𝑜𝑜𝑜𝑜 𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙) Use only 2/3 of the capacity of nail driven perpendicular to the grain when wire nail is driven parallel to the grain of the wood. Toenails shall be designed using only 5/6 of the lateral load allowed for nails driven perpendicular to the grain. 𝐹𝐹′𝑐𝑐 = 𝐹𝐹𝑐𝑐 𝑙𝑙 𝑑𝑑 Intermediate columns ( 𝑒𝑒 𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔 𝑡𝑡ℎ𝑎𝑎𝑎𝑎 11 𝑏𝑏𝑏𝑏𝑏𝑏 𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙 𝑡𝑡ℎ𝑎𝑎𝑎𝑎 𝐾𝐾): K = 0.671√𝐶𝐶𝑇𝑇 E/𝐹𝐹𝐶𝐶 𝑙𝑙 𝑑𝑑 1 𝑙𝑙𝑒𝑒 /𝑑𝑑 4 [ ) ] 𝐹𝐹′𝑐𝑐 = 𝐹𝐹𝐶𝐶 1 − ( 3 𝐾𝐾 Long column ( 𝑒𝑒 𝑜𝑜𝑜𝑜 𝐾𝐾 𝑜𝑜𝑜𝑜 𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔) 4.6.7 𝐹𝐹′𝑐𝑐 = Compression at Angle to Grain 0.30 𝐸𝐸𝐶𝐶𝑇𝑇 (𝑙𝑙𝑒𝑒 /d)2 4.6.9 Safe Resistance to Withdrawal: NSCP Table 6.21 provides the safe resistance of nails wire driven perpendicular to grain of wood against withdrawal from anchorage. Working Stresses for Timber The working stress for visually stress-graded unseasoned structural timber is provided in Table 4-30. The relative densities for species to determine allowable loads is provided in Table 4-31. The allowable unit stress in compression at an angle of load to grain between 0𝑜𝑜 and 90𝑜𝑜 shall be computed from the Hankinson Equation as follows: 𝐹𝐹𝑛𝑛 = 4.6.8 𝐹𝐹𝐶𝐶 𝐹𝐹𝐶𝐶⊥ 2 𝐹𝐹𝐶𝐶 𝑠𝑠𝑠𝑠𝑠𝑠 𝜃𝜃 + 𝐹𝐹𝐶𝐶⊥ 𝑐𝑐𝑐𝑐𝑐𝑐 2 𝜃𝜃 Allowable values 𝐹𝐹𝐶𝐶 shall be adjusted for duration of load before use in Hankinson’s Equatioon. Values of 𝐹𝐹𝑛𝑛 and 𝐹𝐹𝐶𝐶⊥ are not subjected to duration of load modifications. Timber Connectors and Fasteners Mechanical wood connectors and fasteners are used to transfer member forces to other structural elements. NSCP Section 619 provides us the allowable loads and installation of timber connectors and fasteners. NSCP Tables 6.2, 6.17, 6.19 and 6.20 are the pertinent references for the allowable loads and installation for timber connectors. 4-88 4-89 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 4-30 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Working Stresses for Visually Stress-Graded Unseasoned Structural Timber of Philippine Woodsa 80% Stress Grade 80% Stress Grade Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain (1) (2) (3) ×103 MPa (4) (5) (6) MPa MPa MPa MPa I. II. III. 4-90 High Strength Group Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain (1) (2) (4) (5) (6) MPa (3) ×103 MPa MPa MPa MPa Lanutan-bagyo [Gonystylus macrophyllum (miq.) Airy Shaw] 15.0 6.06 8.96 2.02 1.84 Lauan (Shorea spp.) 13.9 5.83 8.18 1.72 1.48 Agoho (Casuarina equisetifolia Forst) 26.3 8.22 14.5 5.91 2.95 Malaanonang (Shorea spp.) 13.8 5.41 8.54 1.96 1.59 Liusin [Parinari corymbosa (Blume) Miq.] 25.0 9.36 15.6 4.31 2.64 Malasaging (Aglaia spp.) 16.8 5.94 9.51 2.92 1.85 Malabayabas (Tristania spp.) 28.7 8.30 15.8 8.70 3.02 Malugai (Pometia spp.) 15.4 6.30 9.33 3.07 2.07 Manggachapui (Hopea spp.) 25.8 9.63 16.0 6.03 2.78 Miau (Dysoxylum spp.) 15.7 6.50 8.83 2.78 2.06 Molave (Vitex parviflora Juss.) 24.0 6.54 15.4 6.34 2.88 Nato (Palaquium spp.) 16.2 5.56 9.17 2.33 1.98 Narig (Vatica spp.) 21.8 8.33 13.7 4.97 2.61 Palosapis (Anisoptera spp.) 13.8 5.98 8.38 2.73 1.68 Sasalit [Teijmanniodendron ahernianum (Merr) Bkh.] 31.3 9.72 21.60 10.2 3.38 Pine (Pinus spp.) 14.7 6.66 8.29 1.88 1.56 Yakal (Shorea spp.) 24.5 9.78 15.8 6.27 2.49 Salakin (Aphanamixis spp.) 15.7 5.67 8.83 2.94 1.88 Vidal lanutan [Hibiscus campylosiphon Turcz. Var. glabrecens (Har. Ex. Perk.)] 19.5 5.83 8.54 2.65 2.39 Antipolo (Arthocarpus spp.) 18.6 5.35 10.8 3.90 2.06 Binggas (Terminalia spp.) 18.9 6.57 11.4 3.27 2.24 Almaciga [Agathis dammara (Lamb.) Rilh.] 11.8 5.47 6.27 1.44 1.47 Bokbok (Xanthophyllum excelsum (Blume) Miq.] 18.1 6.36 11.3 3.41 2.18 Bayok (Pterospermum spp.) 12.6 4.75 7.33 1.30 1.20 Dao (Dracontomelon spp.) 16.2 5.43 9.44 2.27 1.92 Lingo-lingo (Vitex turczaninowii Merr.) 13.2 4.13 6.85 2.00 1.66 Gatasan [Garcinia venulosa (Blanco) Choisy] 20.8 6.84 13.5 3.52 2.36 Mangasinoro (Shorea spp.) 12.8 5.36 7.46 1.97 1.44 Raintree [Samanea saman (Jacq.) Merr.] 11.9 2.75 7.23 3.32 2.07 Guijo (Shorea spp.) 21.8 8.47 13.2 4.26 2.40 Yemane (Gmelina arborea R. Br.) 12.6 4.09 7.87 3.40 1.96 Kamagong (Diospyros spp.) 20.9 7.20 11.7 4.39 2.47 Kamatog [Erythrophloeum densiflorum (Elm) Merr.] 19.0 7.56 11.2 3.95 2.35 Katmon (Dillenia spp) 18.4 6.82 11.9 4.84 2.29 Kato (Amoora spp.) 18.4 8.04 10.6 3.46 1.96 Lomarau (Swintonia foxworthyi Elm.) 19.8 7.92 11.8 2.98 2.18 Mahogany, Big-leafed (Swietenia macrophylla King) 16.5 4.66 10.5 3.83 2.71 Makaasim (Sysygium nitidum Benth) 20.5 6.72 11.4 3.70 2.40 Malakauayan [Decusocarpus philippinensis (Fxw.) de Laub.] 18.9 6.66 11.12 2.32 2.14 Narra (Pterocarpus indicus Willd) 18.0 5.94 11.4 3.07 1.91 Pahutan (Mangifera spp.) 16.6 6.53 10.0 2.50 2.05 Moderately High Strength Group IV. 63% Stress Grade I. Medium Strength Group Apitong (Dipterocarpus spp.) 16.5 7.31 9.56 2.20 1.73 Bagtikan [Parashorea malaanonan (Blanco) Merr.] 16.6 6.48 9.89 2.33 1.82 Dangkalan (Calophyllum spp.) 16.3 6.38 9.20 2.48 1.98 Gisau (Canarium spp.) 14.3 5.33 8.16 1.99 1.90 Moderately Low Strength Group II. Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain (1) (7) (9) (10) (10) MPa (8) ×103 MPa MPa MPa MPa Agoho (Casuarina equisetifolia Forst) 20.7 6.47 11.4 4.65 2.32 Liusin [Parinari corymbosa (Blume) Miq.] 19.7 7.37 12.3 3.39 2.08 Malabayabas (Tristania spp.) 22.6 6.53 12.5 6.85 2.38 Manggachapui (Hopea spp.) 20.3 7.58 12.6 4.75 2.19 Molave (Vitex parviflora Juss.) 18.9 5.15 12.1 5.00 2.27 Narig (Vatica spp.) 17.2 6.56 10.8 3.92 2.06 Sasalit [Teijmanniodendron ahernianum (Merr) Bkh.] 24.7 7.65 17.0 8.07 2.67 Yakal (Shorea spp.) 19.3 7.70 12.0 4.94 1.96 High Strength Group Moderately High Strength Group 4-91 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 63% Stress Grade III. 4-92 63% Stress Grade Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain (1) (7) (9) (10) (10) (1) (7) (10) (10) MPa MPa MPa MPa (8) ×103 MPa (9) MPa (8) ×103 MPa MPa MPa MPa Antipolo (Arthocarpus spp.) 14.7 4.21 8.53 3.07 1.62 Binggas (Terminalia spp.) 14.9 5.17 8.98 2.57 1.77 Almaciga [Agathis dammara (Lamb.) Rilh.] 9.26 4.30 4.94 1.13 1.16 Bokbok (Xanthophyllum excelsum (Blume) Miq.] 14.3 5.01 8.90 2.68 1.72 Bayok (Pterospermum spp.) 9.94 3.74 5.78 1.03 0.95 Dao (Dracontomelon spp.) 12.8 4.28 7.43 1.79 1.51 Lingo-lingo (Vitex turczaninowii Merr.) 10.4 3.25 5.39 1.58 1.31 Gatasan [Garcinia venulosa (Blanco) Choisy] 16.4 5.39 10.6 2.77 1.86 Mangasinoro (Shorea spp.) 10.0 4.22 5.87 1.55 1.14 Raintree [Samanea saman (Jacq.) Merr.] 9.37 2.16 5.70 2.61 1.63 Guijo (Shorea spp.) 17.1 6.67 10.4 3.35 1.89 Yemane (Gmelina arborea R. Br.) 9.90 3.22 6.20 2.68 1.55 Kamagong (Diospyros spp.) 16.6 5.67 9.21 3.46 1.95 Kamatog [Erythrophloeum densiflorum (Elm) Merr.] 15.0 5.95 8.79 3.11 1.85 Katmon (Dillenia spp) 14.8 5.37 9.38 3.81 1.80 Kato (Amoora spp.) 14.5 6.33 8.34 2.73 1.54 Lomarau (Swintonia foxworthyi Elm.) 15.6 6.24 9.30 2.34 1.71 Mahogany, Big-leafed (Swietenia macrophylla King) 13.0 3.67 8.24 3.01 2.13 Makaasim (Sysygium nitidum Benth) 16.1 5.29 8.95 2.92 1.89 Malakauayan [Decusocarpus philippinensis (Fxw.) de Laub.] 14.9 5.24 8.79 1.83 1.69 Narra (Pterocarpus indicus Willd) 14.2 4.68 8.97 2.42 1.51 Pahutan (Mangifera spp.) 13.1 5.15 7.88 1.97 1.61 IV. Moderately Low Strength Group 50% Stress Grade I. Medium Strength Group Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain (1) (12) (14) (15) (16) MPa (13) ×103 MPa MPa MPa MPa Agoho (Casuarina equisetifolia Forst) 16.4 5.14 9.06 3.69 1.84 Liusin [Parinari corymbosa (Blume) Miq.] 15.6 5.85 9376 2.69 1.65 Malabayabas (Tristania spp.) 17.9 5.19 9390 5.44 1.89 Manggachapui (Hopea spp.) 16.1 6.02 10.0 3.77 1.74 Molave (Vitex parviflora Juss.) 15.0 4.09 9.60 3.96 1.80 Narig (Vatica spp.) 13.6 5.20 8.59 3.11 1.63 Sasalit [Teijmanniodendron ahernianum (Merr) Bkh.] 19.6 6.08 13.5 6.40 2.12 Yakal (Shorea spp.) 15.3 3.11 9.55 3.92 1.55 Antipolo (Arthocarpus spp.) 11.6 3.34 6.77 2.44 1.29 High Strength Group Apitong (Dipterocarpus spp.) 13.1 5.76 7.53 1.73 1.36 Bagtikan [Parashorea malaanonan (Blanco) Merr.] 13.1 5.10 7.79 1.84 1.43 Dangkalan (Calophyllum spp.) 12.8 5.03 7.24 1.96 1.56 Gisau (Canarium spp.) 11.2 4.20 6.43 1.56 1.49 Lanutan-bagyo [Gonystylus macrophyllum (miq.) Airy Shaw] 11.8 4.77 7.06 1.59 1.45 Lauan (Shorea spp.) 10.9 4.59 6.44 1.35 1.17 Binggas (Terminalia spp.) 11.8 4.11 7.13 2.04 1.40 Malaanonang (Shorea spp.) 10.9 4.26 6.72 1.54 1.25 11.3 3.97 7.06 2.13 1.36 Malasaging (Aglaia spp.) 13.3 4.68 7.49 2.30 1.46 Bokbok (Xanthophyllum excelsum (Blume) Miq.] Malugai (Pometia spp.) 12.1 4.96 7.35 2.42 1.63 Dao (Dracontomelon spp.) 10.1 3.39 5.90 1.42 1.20 Miau (Dysoxylum spp.) 12.3 5.12 6.96 2.19 1.62 Gatasan [Garcinia venulosa (Blanco) Choisy] 13.0 4.27 8.42 2.20 1.47 Nato (Palaquium spp.) 12.7 4.38 7.22 1.84 1.56 Guijo (Shorea spp.) 13.6 5.30 8.22 2.66 1.50 Palosapis (Anisoptera spp.) 10.9 4.71 6.60 2.15 1.33 Kamagong (Diospyros spp.) 13.1 4.50 7.31 2.74 1.54 Kamatog [Erythrophloeum densiflorum (Elm) Merr.] 11.9 4.72 6.98 2.47 1.47 Katmon (Dillenia spp) 11.7 4.26 7.44 3.03 1.43 Kato (Amoora spp.) 11.5 5.02 6.62 2.17 1.23 Lomarau (Swintonia foxworthyi Elm.) 12.4 4.95 7.38 2.86 1.36 Pine (Pinus spp.) 11.6 5.24 6.53 1.48 1.23 Salakin (Aphanamixis spp.) 12.4 4.47 6.96 2.32 1.48 Vidal lanutan [Hibiscus campylosiphon Turcz. Var. glabrecens (Har. Ex. Perk.)] 15.4 4.59 6.73 2.09 1.88 II. Moderately High Strength Group 4-93 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 50% Stress Grade III. IV. 4-94 Species (Common and Botanical Names) Bending and Tension Parallel to Grain Modulus of Elasticity in Bending Compression Parallel to Grain Compression P’pendicular to Grain Shear Parallel to Grain (1) (12) (14) (15) (16) MPa (13) ×103 MPa MPa MPa MPa Mahogany, Big-leafed (Swietenia macrophylla King) 10.3 2.91 6.54 2.39 1.69 Makaasim (Sysygium nitidum Benth) 12.8 4.20 7.10 2.31 1.50 Malakauayan [Decusocarpus philippinensis (Fxw.) de Laub.] 11.8 4.16 6.98 1.45 1.34 Narra (Pterocarpus indicus Willd) 11.2 3.71 7.12 1.92 1.20 Pahutan (Mangifera spp.) 10.4 4.08 6.25 1.56 1.28 Apitong (Dipterocarpus spp.) 10.3 4.57 5.97 1.37 1.08 Bagtikan [Parashorea malaanonan (Blanco) Merr.] 10.4 4.05 6.18 1.46 1.14 Dangkalan (Calophyllum spp.) 10.2 3.99 5.75 1.55 1.24 Gisau (Canarium spp.) 8.93 3.33 5.10 1.24 1.18 Lanutan-bagyo [Gonystylus macrophyllum (miq.) Airy Shaw] 9.39 3.79 5.60 1.26 1.15 Lauan (Shorea spp.) 8.68 3.64 5.11 1.07 0.93 Malaanonang (Shorea spp.) 8.63 3.38 5.34 1.23 0.99 Malasaging (Aglaia spp.) 10.5 3.71 5.95 1.83 1.16 Malugai (Pometia spp.) 9.62 3.94 5.83 1.92 1.30 Miau (Dysoxylum spp.) 9.80 4.06 5.52 1.74 1.29 Nato (Palaquium spp.) 10.1 3.48 5.73 1.46 1.24 Palosapis (Anisoptera spp.) 8.65 3.73 5.24 1.70 1.05 Pine (Pinus spp.) 9.19 4.16 5.18 1.18 0.98 Salakin (Aphanamixis spp.) 9.83 3.54 5.52 1.84 1.18 Vidal lanutan [Hibiscus campylosiphon Turcz. Var. glabrecens (Har. Ex. Perk.)] 12.2 3.64 5.34 1.66 1.50 Almaciga [Agathis dammara (Lamb.) Rilh.] 7.35 3.42 3.92 0.90 0.92 Bayok (Pterospermum spp.) 7.89 2.97 4.58 0.81 0.75 Lingo-lingo (Vitex turczaninowii Merr.) 8.27 2.58 4.28 1.25 1.04 Mangasinoro (Shorea spp.) 7.98 3.35 4.66 1.23 0.90 Raintree [Samanea saman (Jacq.) Merr.] 7.43 1.72 4.52 2.07 1.30 Yemane (Gmelina arborea R. Br.) 7.86 2.55 4.92 2.13 1.23 Medium Strength Group Moderately Low Strength Group Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Test procedures should be able to recreate the material design stresses. In the absence of a reliable as-built plan, a comprehensive investigation should be conducted which includes, but not limited to, the use of the following: Rebound hammer test and concrete coring for compression tests The PUNDIT (Portable Ultrasonic Nondestructive Digital Indicating Tester) test for evaluating the uniformity of concrete, locating internal concrete voids and cracks, and estimating severity of concrete deterioration. Rebar locator for concrete structures Corrosion and carbonation tests for concrete Direct measurement of structural members including plumbness detection Load testing Structural analysis based on the test results will then be made to complete the study. Analysis may be code based or performance based. Retrofitting work will follow the results of the structural analysis and review. The retrofitting shall be dependent of the established criteria (code based or performance based) and shall be considered on case by case basis depending on the discovered inadequacies of the structure being investigated. Code based: the intention of this type of analysis is essentially to bring the existing structure into a design level consistent with the NSCP. Performance based: Uses as an objective the "degree of acceptable risk" which should be agreed upon by stakeholders. The structural engineer may consider, the acceptable damage to the structure without loss of life. To the owner, the higher construction cost in case the owner decides on a higher design criteria. Expected performance level can be one of the four damage states after an earthquake: Fully operational – use of structure is the same as before the earthquake Operational – building suffers some damage but remains functional and will not collapse. Life safety – foremost in the consideration is the safety of the occupant and not the prevention of structural and non structural member failure. Collapse prevention. – allows minimum design criteria and would require extensive repair (or demolition) after an earthquake event. References are: Earthquake Engineering: From Engineering Seismology to PerformanceBased Engineering by Yousef Bozorgnia, Vitelmo V. Bertero 2004 Fundamentals of Earthquake Engineering, Amr S. Elnashai, Luigi Di Sarno 2008, ISBN 978-0-470-02483-6 (Hbk) 4-97 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Locations and details, expansion joint detail Slab opening, corner reinforcements, depression details Rebar splice, development length, hook schedule Pipe sleeve on beam, change in elevation of beams Framing Plans Stair details Shearwall and shearwall footing details, ramp details Elevated water tank detail including concrete saddles Cistern, septic tank details Bay sections Foundation Plan Foundation plan should contain property line, footing and column designations Location of walls with wall footings, slab on fill thickness and rebar size and spacing Scale should be consistent with the floor plan scale Excavation plan Floor Framing Plans (including deck) Beam and slab designations, scaled location of beams and columns, floor openings Columns terminated at a particular floor should be hatched Scale should be consistent with the floor plan scale. Roof Framing Plan Roof beams, truss, rafters, bracings designations. Scaled location of beams, truss Rafters, bracings Purlin size and spacing call out Columns terminated at a particular floor should be hatched Scale should be consistent with the floor plan scale Schedule and Typical Details 4-102 Slabs, beams, footings showing all necessary dimensions and rebar size and number Detailed column section and typical column elevation showing rebars and splice Restrictions Truss and rafter schematic diagrams with sizes and connection/anchoring detail Purlin, sagrod, bracing connection details 4-103 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.2.2 Availability of Power Source Availability of power should be known beforehand. The type and characteristics such as the number of phases, voltage rating and the frequency in Hertz should be known and available. Samples of electric power source are as follow: Primary Voltage: 34.5 kV, three-phase, four wire, 60 Hz or 34.5 kV, single-phase, two wire, 60 Hz or 20 kV, single-phase, three-wire, 60Hz or 13.8 kV, three-phase, four wire, 60 Hz or 13.8 kV, single-phase, two wire, 60 Hz or 13.2 kV, three-phase, four wire, 60 Hz or 13.2 kV, single-phase, two wire, 60 Hz or 7.62 kV, single –phase, three-wire, 60 Hz Secondary Voltage: 5.2.3 460/265 volts, three-phase, four wire, 60 Hz AC or 400/230 volts, three-phase, five wire, 60 Hz AC or 230 volts, three-phase, four wire, 60 Hz AC or 230 volts, single-phase, three wire, 60 Hz AC 230 volts, single phase, 60 Hz AC Multi-ground Local Power Utility Company Requirements Follow the rules and regulations of the local electric company, where applicable as follows: 5-3 For projects requiring new electrical service, the electrical designer shall coordinate requirements with the local utility service company. For renovations of and/or additions to existing buildings, the electrical designer shall investigate the existing electrical service/distribution system and determine whether sufficient capacity is available to accommodate the new loads. If applicable, the electrical designer shall inform the electric utility company of the new service requirements and additional loads. Major site distribution components, such as medium voltage and low voltage power feeders, duct banks, and manholes, shall be shown on the civil utility plans for coordination purposes. The routing of site utilities and location of manholes should be determined early in the design process. The service entrance location shall be determined concurrently with the development of conceptual design. Space planning documents and standards for equipment furnished by utility companies should be incorporated into the concept design. Locations for transformers, unit substation, vaults, meters and Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 5-1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures General Lighting Load Density Type of Occupancy Load Density (VA per m²) Office Buildings 39 Schools 33 Hospitals 22 Warehouse storages 3 Court Rooms 22 Auditoriums 11 Corridors 6 Clubs 22 Dwelling Units 33 Parking Area 3 Reception & Waiting Area/Lobby 6 Toilet & Washroom 6 The total lighting density for the exterior spaces of buildings shall not exceed the maximum values for building areas as indicated in Table 5-2. Maximum Values for Lighting Power for Building Exterior Load Density Lighting Power Exit (with or without canopy) 60 W/L.m. of door opening Entrance (without canopy) 90 W/L.m. of door opening High Traffic (such as retail, airport) 100 W/m² of area with canopy Light Traffic (such as office, school) 10 W/m² of area with canopy Loading Area 3 W/m² Loading Door 50 W/L.m. of door opening Total power allowance for the exterior (exclusive of above allowances) of building perimeter for buildings of up to 5 storey (above ground) plus 6W/L.m. of building perimeter for each additional storey 100 W/L.m. Source: Guidelines on Energy Conserving Design of Buildings (2007 Ed.) 5-5 Loading Docks: Exterior door lighting shall be provided at loading docks. Fixtures for illumination of the interior of trailers shall be provided at each truck position. The basic lighting density for roadway shall not exceed the maximum values as indicated in Table 5-3. Maximum Values for Lighting Power for Roads and Ground Load Density Type of Occupancy Exterior Lighting Building Area/Space Entrances: Lighting fixtures shall be provided at all entrances and exits of major buildings and shall be connected to the emergency lighting circuit. Table 5-3 Source: PEC Part 1, Table 2.20.2.3 Table 5-2 Parking lots shall be designed with pole mounted luminaires that is environment friendly and requires less energy but efficient. Emergency power shall not be required for parking lot lighting. Exterior lighting is to comply with the local zoning laws of Barangay, Municipalities and Cities. Use lighting levels appropriate for exterior areas as indicated in the available standard references. Flood lighting shall also be provided if necessary. Parking and roadway lighting shall be of High Intensity Discharge (HID) lamps or Light Emitting Diode (LED). The illumination ratios shall not exceed 10 to 1 maximum to minimum ratio and a 4 to 1 average to minimum ratio. Load Density (W/m²) Work Area 2 Activity area for casual use (such as picnic, grounds, gardens, parks) 1 Private driveways/walkways 1 Public driveways/walkways 1.5 Private Parking lots 1.2 Public Parking lots 1.8 Source: Guidelines on Energy Conserving Design of Buildings (2007 Ed.) 5.3.2 Illumination Levels for Various Areas For lighting levels for interior spaces please refer to the values indicated in Table 5-4 and 5-5. The electrical designer shall have the option to use the manual calculation and/or the applicable lighting calculation software. Table 5-4 Recommended Design Illuminance Levels Task Lighting for Infrequently Used Lighting for Working Interiors Localized lighting for Exacting tasks Minimum and Maximum (Lux) Application 50-150 Circulation area and Corridors 100-200 Stairs 100-200 Escalators 200-300 Infrequent reading and writing 300-750 General offices, typing and computing 300-750 Conference room 500-1000 Deep-plan general offices 500-1000 Drawing offices 500-1000 Proofreading 750-1500 Designing, architecture and machine engineering 1000-2000 Detailed and precise work Source: Guidelines on Energy Conserving Design of Buildings (2007 Ed.) 5-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 5-5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Illuminance Levels (Average) Area component of illumination only and ignore the indirect component of light, which can contribute significantly to the uniformity. However, used within its limits, a Spacing Criterion can be valuable. To use the Spacing Criterion, multiply the net mounting height (luminaire to work plane) by the Spacing Criterion number. Nominal Illuminance Level in Lumens/m² (lux) Office Area Normal work station area, open or closed offices 500 Automated Data Processing (ADP) 500 Conference Rooms 300 Training Rooms 500 Internal Corridors 200 Applicable Lighting Software shall be used to determine the required spacing considering the technical characteristic of the luminaires to be used. Public Areas Entrance Lobbies 200 Elevator Lobbies, Public Corridors 200 Stairwells 200 5.3.4 200 Staff Locker Rooms 200 Storage Rooms, Janitors’ Closets 200 Electrical Rooms, Generator Rooms 200 Mechanical Rooms 200 Communications Rooms 200 Maintenance Shops 200 Loading Docks 200 Trash Rooms 200 Design for glare, contrast, visual comfort and color rendering and correction shall be considered by the design engineer. Task lighting shall be used in situations, such as areas of systems furniture, where the general lighting level would be insufficient for the specific functions required. Specialty Areas Dining Areas 150-200 Kitchens 500 Outleased Area 500 Physical Fitness Area 500 Child Care Centers 500 Structured Parking, General Area 50 Structured Parking, Intersections 100 Structured Parking, Entrances 500 5.3.5 5.3.6 U.S. General Services Administration 5.3.3 Lighting Layout Lighting shall be designed to enhance both the overall building architecture as well as the effect of individual areas within the building with consideration on energy efficiency. For the required spacing with respect to mounting height between luminaires or lighting outlets shall consider the spacing criteria recommended by the manufacturer. Spacing criteria provide the designer with information regarding how far apart luminaires may be spaced while maintaining acceptable illumination uniformity on the work plane based on the photometric data of the luminaire to be used. Criteria for spacing are generally conservative; they take into account the direct 5-7 Office Lighting Office lighting is generally fluorescent (tubular or CFL) and/or LED type lighting fixtures utilizing pinlight or downlight. A lighting layout with a fairly even level of general illumination is desirable. In open office areas with systems furniture partitions, the coefficient of utilization shall be reduced to account for the light obstruction and absorption of the partitions. Support Areas Toilets Refer also to the recommendations of the DoE Manual of Practice on Efficient Lighting. 5.3.7 5.3.8 If the area contains special work stations for computer graphics, dimmable CFL or LED may be required. If a large area is segregated into areas of high and low personnel activity, switching design should provide for separate control of lights in high- and low-activity areas of the area. Conference Rooms and Training Rooms These areas shall have a combination of fluorescent (tubular or CFL) and/or dimmable LED or halogen lighting fixture. Lobbies, Auditorium and Public Corridors Special lighting design concepts shall be applied in these areas. The lighting design shall be an integral part of the architecture. Wall fixtures or combination wall and ceiling fixtures shall be considered in corridors to help break the monotony of a long, plain space. Mechanical and Electrical Areas Lighting in equipment rooms or closets shall be provided by industrial-type fluorescent fixtures or vapor-tight fixtures. Care shall be taken to locate light fixtures so that lighting is not obstructed by tall or suspended pieces of equipment. Dining Areas and Services Ample daylight is the illumination of choice in dining areas, assisted by fluorescent (tubular or CFL) and/or LED type fixtures. Limited CFL for accents shall be 5-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.3.9 5.3.10 5.3.11 5.3.12 5.3.13 5.3.14 5.3.15 considered if comparable architectural effect to LED or incandescent lighting can be achieved. Fixtures for parking areas shall be fluorescent strip fixtures with wire guards or diffusers. Care must be taken in locating fixtures to maintain the required vehicle clearance. Enclosed fluorescent or HID fixtures should be considered for abovegrade parking structures Structured Parking Task oriented lighting shall be chosen wherever applicable. When choosing lighting fixtures, take into account the color rendition and appearance of the area to be lighted. Refer Table 5-6. Efficacy Ranges of Various Lamps Lamp Type Lighting in shop, supply, or warehouse areas with ceilings above 4900 mm shall be color-improved HPS. In areas where color rendition is known to be of particular importance, metal halide MH shall be used. Rated Power Ranges (watts) Efficacy Ranges (lumens/watt) Linear/Tubular Fluorescent Lamp Emergency Lighting Emergency lighting shall be provided to designated areas and installed on wall below the ceiling line. Exit Lighting Exit lighting shall be provided to all emergency and egress areas installed surface mounted on the ceiling or wall mounted. Halophosphate 10 – 40 55 – 70 Triphosphor 14 – 65 60 – 83 Compact Fluorescent Lamp (CFL) 3 – 125 41 – 65 Light Emitting Diode (LED) 3 – 100 80 – 95 Incandescent Lamp 10 – 100 10 – 25 Mercury Vapor Lamp 50 – 2000 40 – 63 Metal Halide lamp Up to 1000 75 – 95 Low Pressure Sodium Lamp 20 – 200 100 – 180 High Pressure Sodium Lamp 50 – 250 80 – 130 Source: Guidelines on Energy Conserving Design of Buildings (2007 Ed.) Energy Conservation The largest factor in the energy consumption of a building is lighting. The overall efficiency of the lighting system shall depend both on the individual components and on the interaction of components in a system. A good controls strategy shall be applied to eliminate lighting in unoccupied areas and reduces it where day lighting is available that can contribute significantly to energy conservation. Necessary applicable control methods shall be applied such as through a Building Automation System (BAS) and other available technology to comply with the energy conservation. Consider the maximum practical room surface reflectance in the lighting design. Utilize light finishes to attain the best overall efficiency of the whole lighting system. Avoid dark surfaces because these absorb light. Table 5-7 shows the recommended room surface reflectance. Table 5-7 Visual Impact The location and selection of the electrical system shall have visual impact on the interior and exterior of the building or facility that shall be closely coordinated with the architectural design. This includes colors and finishes of lights, outlets and switches. Design of lighting shall use the energy efficient lighting fixtures. The lighting system shall be selected to provide an aesthetic and adaptable environment in accordance with the intended purpose and with the minimum likely energy requirements. Table 5-6 High Bay Lighting Recommended Room Surface Reflectance Surface % Reflectance Ceilings 80 – 92 Walls 40 – 60 Furniture 26 – 44 Floors dimming 21 – 39 Source: Guidelines on Energy Conserving Design of Buildings (2007 Ed.) 5.3.16 General Requirements for Lighting Design The minimum requirements in achieving energy efficient lighting design and installations is one purpose of this guidelines. The provisions are expressed in terms of lighting power density, luminous efficacy and illumination level. In choosing suitable indoor illuminance level for an area, energy efficient shall be considered plus other lighting requirements. 5-9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.3.17 Lighting Calculations The designer has the option to use sample calculations as indicated in DoE Manual of Practice on Efficient Lighting or from lighting software. Lighting Controls Manual (tumbler and dimmer switches), automatic, or programmable microprocessor lighting controls shall be provided for all lighting, except those required for emergency or exit lighting for security purposes. The application of 5-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures these controls and the controlled zones shall depend on a number of space factors: frequency of use, available daylighting, normal and extended work hours and the use of open or closed office plans. The factors to be considered when establishing zones, zone controls, alternate control and appropriate lighting control are: Every task lighting shall be provided with lighting control device. The general lighting of any enclosed area equal to or greater than 10 m² wherein the connected loads is greater than 10 W/m² for the entire area shall be controlled so that the lights load may be reduced by at least one-half while retaining a uniform level of illuminance all over the area. This process shall be made by the use of dimmers, dual switching of alternate lighting fixture, or switching each lighting fixture. The quantity of control devices needed shall be at least one for every 1.5 kW of connected lighting load. It shall also comply with the preceding item. The total number of control points to be used is shown in Table 5-8. Control Types and Equivalent Number of Control Points Type of Control Equivalent Number of Control Points Manually operated On-Off Switch 1 Occupancy Sensor 2 Timer – Programmable from the space being controlled 2 3 Level step-control (including off) or preset dimming 2 4 Level step-control (including off) or preset dimming 3 Continuous (Automatic) dimming 3 Source: Guidelines on Energy Conserving Design of Buildings (2007 Ed.) Exterior lighting not intended for 24 hours continuous use or both all-night and part-night lighting circuits shall be automatically switched on by a timer, photocell or combination of both timer-photocell. This process shall be provided with manual bypass switch. Exceptions: - At least one lighting control device shall be provided for each space enclosed by ceiling-height partitions. The device shall have the ability to switch on and off all the lights within the area. Table 5-8 location should not be considered as increasing the number of controls to meet the requirements of Table 5-8. - - 5.3.18 Lighting control requirements for areas, which shall be used as a whole shall be controlled in accordance with the work activities. Its controls shall be centralized in remote places. These areas include public lobbies of hospitals, office buildings, warehouses, store rooms and service corridors under central control and monitoring system. Automatic and non-automatic control devices may decrease the quantity of controls required by using equivalent number of controls from Table 5-8. Automatic Control System, Programmable Controllers Lighting Controls requiring expert operators and lighting controls for security and safety hazards. Power Layout Receptacle/Convenience Outlet Load Analysis In establishing electrical loads for buildings or facility it is important to look its actual requirements. Future changes have the effect of redistributing electrical loads. The minimum connected receptacle loads indicated in Table 5-9 combined with other building or facility loads multiplied by appropriate demand factors, and with spare capacity added, shall be used for obtaining the overall electrical load of the building. Building standard receptacle shall be duplex. Single receptacle shall be used on certain equipment to be used such as for Emergency Light, Exit Light, etc. Special purpose receptacles shall be provided for window type Air-conditioning unit, Electric Ranges, Heating and Refrigeration and other similar equipment. Device plates shall be plastic, colored to match the receptacles. Use manual or automatic controls where adequate day lighting is available. Examples of automatic controls are photoelectric switches or automatic dimmers. These controls shall not only be provided for day lighted spaces but also to operate rows of lights parallel to front/exterior wall. Continuous lighting shall be applied for security purposes, Control Location 5-11 Lighting controls shall be readily accessible to area tenants. Controls for task lighting areas shall be installed as part of the task lighting system. Control switches controlling the same load from more than one 5-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 5-9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Minimum Connected Receptacle Load Type of occupied area Table 5-10 Load per square meter (VA) Circuit Rating (Amperes) Receptacle Rating (Amperes) 15 Not over 15 Normal systems Office/Workstation 14 20 15 or 20 Non-workstation areas such as public and storage 10 30 30 Public areas 5 40 40 or 50 50 50 Electronic systems Office/Workstation 13 Computer rooms 700 Source: PEC Part 1, Table 2.10.2.3(b)(3) U.S. General Services Administration Design the receptacle system per the following minimum requirements. The designer shall create a design that provides for the average load requirement and allows for flexibility for future additions and expansion. In this case the design generally adheres to PEC requirement for general purpose receptacles in residential buildings to provide a sufficient quantity of receptacles and meet any future needs: Receptacle Rating for Various Size Circuits 5.3.19 The motor nameplate horsepower shall be multiplied by the motor nameplate service factor shall be at least 15% greater than the driven equipment operating range maximum brake horsepower. For motors with 1.15 service factor, the maximum load horsepower shall not exceed the motor nameplate. For offices, minimum of 3.7 m spacing between receptacles is required. However, for modular or workstation offices that requires computer, a dedicated receptacle shall be provided. For hallway and corridors (to accommodate cleaning equipment), minimum of 6 m spacing between receptacles is required. Ground-fault circuit interrupter (GFCI) or Earth leakage circuit breaker (ELCB) protection shall be provided on all receptacles located within 1.8 meter of sinks, water fountains, vending machines, and any equipment holding a pool of water and connected to building plumbing. Weatherproof receptacle shall be used for exterior installation exposed to weather condition. Receptacle Ratings: Where connected to a branch circuit supplying two or more receptacles or outlets, receptacle ratings shall conform to the values listed in Table 5-10, or where larger than 50 amperes, the receptacle rating shall not be less than the branch-circuit rating. Motors Provision of necessary power supplies for the intended operation and application as indicated on the respective equipment schedule that requires motor loads. Sizing of required starting equipment shall be of direct-on-line or full voltage, stardelta, auto-transformer and soft starters. Location of receptacle outlets shall be readily accessible and the number of outlets depends on the area requirement of the structure. For any heating, air-conditioning, or refrigeration equipment, a dedicated receptacle is required. Special purpose receptacle shall be used for the applicable equipment. Branch Circuit Requirement: The type of circuit is a general purpose branch circuit, a circuit that serves two or more receptacles or outlets for lighting and appliances. Each receptacle shall be valued at 180VA. In general every ten 220V receptacles requires one branch circuit at 80 percent of rated capacity. 5.3.20 Motors shall be designed in accordance with the latest applicable standards and codes. Branch Circuits, Feeders and Conduit/Raceways Branch Circuits The design for the minimum branch circuit conductor size, before the application of any adjustment or correction factors, shall have an allowable ampacity not less than the noncontinuous load plus 125% of the continuous load. Likewise, the feeders shall be protected against overcurrent in accordance with the provisions PEC. The branch circuits shall be installed on the conduit/raceways that originate from Panelboard and supply power to one or more loads as indicated in Table 5-1, 5-2 and 5-3 with its respective Load Densities or with specific load as indicated in PEC Article 2.20. For specific appliance and load shall be calculated based on the ampere rating of the appliance or load served. Feeders The design for the minimum feeder conductor size, before the application of any adjustment or correction factors, shall have an allowable ampacity not less than the noncontinuous load plus 125% of the continuous load. Likewise, the feeders 5-13 5-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures shall be protected against overcurrent in accordance with the provisions PEC. The feeders shall be installed on the conduit/raceways that originate at a primary distribution center and supply power to one or more secondary distribution centers, branch-circuit distribution centers, or a combination of these. Conduit/Raceways for Wires The design for the conduit/raceway systems used in supporting and protecting electrical cable shall be in accordance with the provisions of the PEC. 5-15 Raceway system consists of manholes, ductbanks, entrance rooms and vaults, equipment room(s), closets, and the sleeves, ducts, conduits, raceways and outlets that comprise the horizontal pathways, backbone pathways and workstation outlets of the technology infrastructure. All cable trays except electronic trays shall be of trough or ladder type construction with a maximum rung spacing of 150 mm, nominal depths of 100 mm to 150 mm, and various widths as required. There shall be a maximum spacing of 2.4 m between cable tray supports, except fittings (elbows, tees, etc.) which shall be supported in accordance with standards. Raceways or cable trays or wire ways containing electric conductors shall not contain any pipe, tube, or equal for steam, water, air, gas, drainage, or any service other than electrical. Metal raceways, cable armor, and other metal enclosures for conductors shall be metallically joined together into a continuous electric conductor and shall be connected to all boxes, fittings, and cabinets so as to provide effective electrical continuity. Raceways and cable assemblies shall be mechanically secured to boxes, fittings, cabinets, and other enclosures. Electrical conduits shall be installed in concrete slab or wall or double walls and floors. PVC conduits shall be used for embedded and concealed installation, EMT for concealed installation spaces up to 32 mm maximum size and RSC or IMC conduit for exposed to weather, and in areas susceptible to damage and for high and low-voltage feeders inside the building. PVC or RSC/IMC conduit shall be used on underground installation with concrete encasement or duct banks. Flexible Steel Conduit (Aluminum Flex Not Allowed) shall be used for short runs from ceiling Junction-Boxes to light fixtures, final connection to motors or other appliances and equipment or where special permission is granted for use. Liquid tight flexible metallic conduit shall be used for damp location and for connections to accessory devices such as: solenoid valves, limit switches, pressure switches, etc.; for connections to motors or other vibrating equipment; and across areas where expansion or movement of the conduit is required. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.3.22 color coded insulation shall be applied for all the low voltage system for easy identifying the phases, neutral and earth conductors. Wires/cables shall be of the approved type meeting all the requirement of the PEC. Bus Duct: Where plug-in bus duct is used, it should have an integral ground bus, sized at 50% of the phase bus to serve as the equipment grounding conductor. Power Distribution Panels: Circuit breaker type panels shall be the standard protection with respective interrupting capacity. Lighting and receptacle panelboards shall be circuit breaker type. Shall have minimum of 30 poles for 100 amps panelboards and minimum 42 poles for 225 amp panelboards. Panelboard shall be located in wall at accessible area or in the Electrical Room. All panelboards, switchboard/switchgear shall have a rating not less than the minimum feeder capacity required for the load calculated. Panelboard Shall be classified for the purposes as either lighting and appliance branch circuit panelboards or power panelboards, based on their content. A power panelboard is one having 10 percent or fewer of its overcurrent devices protecting lighting and appliance branch circuits. Overcurrent device to be installed shall be of miniature circuit breaker (MCB) or molded case circuit breaker (MCCB). The enclosure shall be either flush or surface mounted in wall and shall be located on designated area or in the Electrical Room. To ensure maximum flexibility for future systems changes, the following be sized as follows: Panelboard for branch circuits must be sized with at least 25% spare capacity Panelboard and main switchgear for feeder shall provide at least 25% spare ampacity 5-17 5.3.23 Insulated case and power air circuit breakers shall be electrically operated. The enclosure shall be of free standing and shall be located in the Electrical Room. Required interrupting current capacity shall be provided to all the overcurrent devices based on the short circuit calculations conducted. If applicable, the designer shall conduct relay coordination study. Switchboards shall be front and rear accessible. In smaller switchboards, front access only is acceptable if space is limited. The meter section shall contain a voltmeter, ammeter and watt-hour meter with demand register. Meters maybe of pulse type or IED for connection to the BAS. Providing a power monitoring and management system is an acceptable option. Unit Substation The unit substation shall be installed on secured and protected conspicuous area located indoor with necessary ventilation or cooling systems to maintain indoor temperature as required for proper operation of the equipment. A unit substation consists of one or more transformers mechanically and electrically connected to and coordinated in design with one or more switchgear or switchboard assemblies with the outgoing section shall be rated below 1000 volts. A typical unit substation consists of three sections: An incoming section that accepts incoming medium voltage (2400 to 34,500 volts) line. Air Interrupter Switch (fused or unfused) or Metal Clad Switchgear (SF6 or Vacuum type circuit breaker) shall be used. A transformer section that transforms incoming voltage down to utilization voltage (480, 400 or 230 volts). Liquid filled or Dry Type Transformer shall be used. An outgoing section (power load center) that distributes power to outgoing feeders and provides protection for these feeders for the utilization voltage. The unit substation shall bring power as close as possible to the load center and shall provide the following features: - Spare overcurrent devices shall be provided as well as bus extension for installation of future protective devices - Switchboards/Switchgear shall be provided with a single main service disconnect device. The devices shall be molded case, insulated case, power air circuit breaker (ACB) or individually mounted, draw-out type (as applicable). - Switchboards/Switchgear Overcurrent Protection. Feeders shall be protected against overcurrent by providing overcurrent device such as the circuit breaker. Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less than the noncontinuous load plus 125% of the continuous load. Panelboard, Switchboard/Switchgear Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures - Reduced power losses Better voltage regulation Improved service continuity Increased functional flexibility Lower installation cost Efficient space utilization Every component and assembly of the unit substations shall be designed as an integral part of a complete system 5-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.3.24 Emergency/Standby Power Systems Generator Emergency power requirements for the building or facility shall be provided by a dedicated diesel generator set to supply the essential and critical loads during the failure of the normal supply. Manual or Automatic transfer switches (MTS/ATS) shall be provided to transfer the power supply from emergency to normal or vice versa. Refer Figure 5-1. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures A UPS system shall be sized with 25% spare capacity. Critical Technical Loads Capacity. Generator Location The generator shall be installed inside the buildings or facility with the required area for the open type generator. Adequate and permanent ventilation to the outside air in the form of louvered vents shall be required to be provided as part of the generator room design. The required location shall be at the ground floor of the building where it can easily be accessed. This is to ensure ease of installation and future replacement/retirement. The emission of exhaust shall be routed outside the atmosphere. Silent outdoor type generator shall also be used and installed adjacent to the building or facility. Auxiliary Equipment Battery shall be provided in racks within engine-generator set skid base. Voltage regulated battery chargers shall be provided for engine-generator sets. Chargers shall be furnished with float, taper, and equalize charge settings. Uninterruptible Power Systems (UPS) In some facilities, critical loads such as the computer system, etc. shall be designed with a back-up systems such as the UPS. Requirements for UPS systems shall be evaluated on a case by case basis. If UPS is required, it may or may not require generator back-up. When generator back-up is unnecessary, sufficient battery capacity shall be provided to allow for an orderly shut-down. 5-19 Emergency Electrical Power Source Requirements When the UPS is running on emergency power, the current to recharge the UPS batteries shall be limited. This limited battery charging load shall be added when sizing the emergency generator. Electric generating system shall meet the design requirements of NFPA 110. The engine generator shall be sized to approximately 110% of design load. Ideally it shall run at 50% to 80% of its rated capacity after the effect of the inrush current declines. When sizing the generator, consider the inrush current of the motors that are automatically started simultaneously. The initial voltage drop on generator output due to starting currents of loads must not exceed 15%. The UPS system shall serve critical loads only. Non-critical loads shall be served by separate distribution systems supplied from either the normal or emergency power system. If the UPS system is backed up by a generator to provide for continuous operation, then the generator shall also provide power to all necessary auxiliary equipment, i.e., the lighting, ventilation and air conditioning supplying the UPS and serving the critical technical area. System Status and Control Panel The UPS shall include all instruments and controls for proper system operation. The system status panel shall have an appropriate audio/visual alarm to alert operators of potential problems. It shall include the following monitoring and alarm functions: system on, system bypassed, system fault, out of phase utility fault and closed generator circuit breaker. It shall have an audible alarm and alarm silencer button. Since UPS equipment rooms are usually unattended, an additional remote system status panel shall be provided in the space served by the UPS. The alarms should also be transmitted to the Building Automation System (if available). UPS and Battery Room Requirements Provide emergency lighting in both spaces. Provide a telephone in or adjacent to the UPS room. Battery room design shall accommodate proper ventilation, hydrogen detection, spill containment and working clearances. Batteries Valve Regulated Lead Acid (VRLA) Battery shall be used for the UPS with an immobilized electrolyte that is sealed in terms of electrolyte maintenance. The battery contains a pressure relief valve that releases excessive internal pressure to the atmosphere when the cell pressure exceeds a manufacturer's prescribed level. The immobilizing electrolyte medium accommodates an oxygen recombination cycle thus minimizing gassing and water consumption. The battery cabinet shall be sized with adequate space between shelves to allow maintenance and test measurement access. Increased clearance shall be required for multiple rows of batteries behind the front row in the cabinet. Batteries on pull out drawers are shall be provided with safety and maintenance access. 5-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures full-load primary current of the transformer for about 0.1 s when energized initially. Overcurrent protection for a transformer on the primary side is typically a fused disconnect. In some instances where there is not a high voltage panel, there shall be circuit breaker instead. 5.4.2 It is important to note that the overcurrent device on the primary side shall be sized according to the transformer KVA rating and not sized based on the secondary load to the transformer. Transformer Vault The transformer vault that to be installed inside the buildings or facility shall be complied with the requirement of the PEC. The required location for the transformer vault shall be at the ground floor of the building where it can easily be accessed from the outside. This is to ensure ease of installation and future replacement/retirement of the padmounted transformer. The walls and roof shall be constructed using reinforced concrete not less than 150 mm thick. The floor shall have adequate strength for the load imposed on it and shall be not less than 100 mm thick reinforced concrete when in direct contact with earth or not less than 150 mm thick when located above another storey. Floor finish shall be smooth and painted with one coat of polyurethane sealer and two coats of epoxy dustproof coating. There shall be a maximum of two (2) padmounted transformer units in a vault. Generally, the minimum required dimension for the vault shall be 5 m (width) X 4 m (depth) for one (1) three-phase padmounted transformer or 8 m (width) X 4 m (depth) for two (2) three-phase padmounted transformers units. This assumes that a 3-m clear space in front of the equipment for switching operations can be attained when the transformer access door is open. For 2nd floor and 1st basement installations where this is not possible, a 6 m minimum depth for the vault shall be required. [Exception: For 2nd floor transformer vault where a hatchway is used, the depth required is 8 m.] There shall be no openings, such as, doors, vents, etc., from the transformer vault to any part of the building interior. All openings of the transformer vault shall only lead to the outside of the building. The concrete pad for the padmounted transformer shall be 75 mm height. A 150 mm high door sill shall be provided by the as part of the transformer vault liquid confinement area. Adequate and permanent ventilation to the outside air in the form of louvered vents shall be required to be provided as part of the transformer vault design. The vents shall have a combined net area of opening (less the area occupied by the louvers) of not less than 20cm² per kVA of the transformer bank capacity installed. For adequate natural air circulation, the intake and exhaust vents shall be located on opposite sides of the padmounted transformer with half of the total 5-22 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.5.1 Major items of equipment, such as unit substations, transformer vault, switchgear, motor control centers, relay panels, and control panels, shall have integral ground buses which shall be connected to the ground grid. Electronic panels and equipment, where required, shall be grounded utilizing an insulated ground wire. Where practical, electronics ground loops shall be avoided. Where this is not practical, isolation transformers shall be furnished. All ground wires installed in conduit shall be insulated. System Grounding System grounding shall be extremely important, as it affects the susceptibility of the system to voltage transients, determines the types of loads the system can accommodate, and helps to determine the system protection requirements. The system grounding arrangement shall be determined by the grounding of the following power sources: Utility Service: The system grounding shall be usually determined by the secondary winding configuration of the upstream utility substation transformer. Generator: The system grounding shall be determined by the stator winding configuration. Transformer: The system grounding on the system fed by the transformer shall be determined by the transformer secondary winding configuration. Solidly-grounded Systems The solidly-grounded system is the most common system arrangement, and one of the most versatile. The most commonly-used configuration is the solidly-grounded wye, since it will support single-phase phase-to- neutral loads. Ungrounded Systems This system grounding arrangement shall be at the other end of the spectrum from solidly-grounded systems. 5.5.2 An ungrounded system is a system where there shall be no intentional connection of the system to ground. Equipment Grounding Metal parts of electrical equipment shall be grounded (connected to the earth) to reduce induced voltage on metal parts from exterior lightning so as to prevent fires from an arc within the building/structure. Metal parts of electrical raceways, cables, enclosures, or equipment shall be bonded together in a manner that creates a low-impedance path for ground-fault current to facilitate the operation of the circuit overcurrent device. 5-24 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5.5.3 A connection that provides a path to ground a conductor within the equipment. A ground connection to any metal part of a wiring system or equipment that does not carry current. Lightning Protection Systems The lightning protection system shall be designed for Early Streamer Emission (ESE) air terminal in accordance to the UNE 21186 and similar ESE standards one which conveys a lightning discharge to ground without electrification of its supporting mast or pole and nearby structures. A set of protection system shall consist of electrode, down conductor, ground rod(s), masts, fasteners and other miscellaneous mounting hardware. Lightning protection system shall be provided if lightning can easily strike a building because of: Its length Its height, or the use to which it is located, or if It is expected that a lightning strike would have serious consequences The lightning protection ground shall be connected to the main building or facility ground and any nearby buried metallic items and building or facility structures. 5.5.4 Test pit shall be provided and each down conductor requires a test clamp and dedicated earth system of 10 ohms or less. Should 10 ohms not be achievable, additional ground rods or conductor shall be provided. Single Line Diagram Starting at the top of the drawing with the building transformers, the designer shall indicated all pertinent electrical equipment down to the panelboard level. These equipment includes switchboard/switchgear, panelboards, MCCs, generators, transfer switches, uninterruptible power supplies, and inverter systems. For transformers, note kVA size, primary and secondary voltages, phasing (building service entrance only), and impedance. Show the distribution switchboard and switchgear in "expanded" form. On the drawing detail the main breaker, tie breaker, feeder breakers, spare breakers, CTs, PTs, and meter. Note switchboard rated amperage, voltage, and short-circuit capability. Include frame and trip size of all breakers in the gear. Note service entrance, feeder wire and conduit sizes. For larger buildings, additional SLD drawings may be required. If the building uses MCCs, separate SLDs may be required. When MCCs are necessary, shall provide in "expanded" form. Drawings shall be called "MCC Single Line Diagram" and be numbered sequentially with the main SLD. Indicate starter and breaker sizes, bus tap sizes, wire, and conduit size ending with each motor or other load. If the building has a large standby power system, shall provide an "expanded" SLD of this system also. In general, use the following guidelines: 5-25 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 5-27 Exterior Distribution System Plan Technical Specifications Bill of Materials Project Estimate Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Heat generated by equipment and appliances Heat gained from outside air (fresh air intake and ventilation) After consideration of the factors, the amount of heat generated inside the room will indicate the type of airconditioning system and its capacity requirement for the room. The heat loss/load equation is Q = AU∆T where: 6.3.4 A = surface area U = overall heat transfer coefficient depending on the type of construction materials ∆T = difference in outside and inside temperature Overall Coefficient of Heat Transfer (U) Using the principle of heat transfer, the overall coefficient, U, can be calculated using the resistance method. The total resistance to heat flow through a flat ceiling, floor or wall (or a curved surface if the curvature is small) is equal to the sum of the resistances in series. RT = R1 + R2 + R3….+Rn Where R1, R2, R3…. Rn are the individual resistances of the surface components and RT is the total resistance. The overall heat transfer coefficient is the summation of resistance of the various components of an assembly. The general formula is: U= 1 1 1 + ...... R1 R2 Rn =∑ 1 R1 ⊳Rn For a wall of a single homogenous material of conductivity, k, and thickness, L, with surface coefficient h1 and ho: and RT = 1 1 1 + + h1 k ho 1 U= R T For a wall with air space construction, consisting of two homogenous materials of conductivities k1 and k2 and thicknesses L1 and L2, respectively, separated by an air space of conductance c: RT = 1 L 1 L 1 + k1 + + k2 + h1 c ho 1 2 6-3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures and 1 U= R T Over-all heat transfer coefficient for usual materials of construction are provided in Table 6-1. Table 6-1 Overall Heat Coefficient Uo-value Assembly BTU/hr-sqft F Roof Assemblies (Heat Flow Down) Galvanized Iron Roof with Medium Density Fiber (MDF) Cement Board ceiling, No insulation 0.55 Galvanized Iron Roof with cement (MDF) Board, 25 mm thick fiberglass insulation 0.18 Galvanized Iron Roof with Medium Density Fiber Cement (MDF) Board, 50 mm thick fiberglass insulation 0.10 150 mm Roof Slab without ceiling 0.61 150 mm Roof Slab , 25 mm thick fiberglass insulation no ceiling 0.19 150 mm Roof Slab , no insulation, with 200mm air space and MDF Board 0.36 150 mm Roof Slab , 25 mm thick fiberglass insulation, with 200mm air space and MDF Board 0.15 Outdoor Wall Assemblies 100 mm Concrete Block w/ 0.5 inch Plaster, both sides 0.72 150 mm Concrete Block w/ 0.5 inch Plaster, both sides 0.63 200 mm Concrete Block w/ 0.5 inch Plaster, both sides 0.56 Floor Assembly (Heat Flow up) 150 mm thick floor slab with no ceiling below 0.58 150 mm thick floor slab with 200 mm airspace and MDF ceiling 0.38 Ceiling Assembly (Heat Flow down) 150 mm thick floor slab with no ceiling below 0.43 150 mm thick floor slab with 200 mm airspace and MDF ceiling 0.64 Wall Partitions 100 mm CHB with 12 mm plaster finish on both sides 0.55 150 mm CHB with 12 mm plaster finish on both sides 0.50 25 mm thick fiberglass insulation sandwiched between Medium Density Fiber Cement Board 0.18 50 mm thick fiberglass insulation sandwiched between Medium Density Fiber Cement Board 0.11 Internal Heat Gain Sources: The air conditioned room may be considered to be a black box where all the heat going into the box has to be removed by the air conditioning. The internal sources of heat are the people, lights, appliances and equipment. 6-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 6.5.1 6.5.2 NFPA 14: Standard for the Installation of Standpipe, Private Hydrant and Hose Systems NFPA 20: Standard for the installation of Stationary Pumps for Fire Protection General Design Procedure The project drawings are the take off point for any fire protection system that would be designed. The use of the building will determine the type of fire protection system to be provided or should any be installed at all. Republic Act 9514 known as the Fire Code of the Philippines of 2008 and its implementing rules and regulation shall be consulted as minimum code requirement for the fire protection system to be provided. Automatic Fire Sprinkler System General: One of the most reliable extinguishing system is the automatic sprinkler system. The design of the automatic sprinkler system shall be based on the provisions of NFPA 13 – Standard for the Installation Sprinkler Systems. Facilities requiring sprinkler systems shall be determined from the requirements of the Fire Code of the Philippines of 2008. Classification of Occupancies: Occupancy classification is used to determine sprinkler installation only and does not supersede the requirements of the Fire Code. Based on the available fuel during a fire, an area may be considered to be light hazard if the combustibility of the contents is relatively low. Examples are offices, restaurant sitting rooms, theaters. Ordinary Hazard on the other hand have moderate to high rates of heat release. Examples of these are garages, restaurant service areas and factories. Extra hazard occupancies have a very high level of combustibles present. They include aircraft hangars, painting areas, plywood manufacturing areas. Sprinkler installation guidelines are provided in Table 6-3. Table 6-3 Sprinkler installation guidelines Occupancy Classification Maximum Sprinkler Protection Area, m2 Sprinkler Spacing (max:), m2 From Walls (max:), m2 Light Hazard 20.9 4.5 2.25 Ordinary Hazard 12.0 4.5 2.25 Extra Hazard 9.2 3.6 1.8 Hydraulic Calculations Pipe Friction Losses are determined by the Hazen-Williams formula where P = 4.52 Q1.85 C1.85 d4.87 Where P is the friction loss in pounds per square inch per foot length of pipe, Q is in gallons per minute. C is the Hazen-Williams coefficient dependent on the type of pipe. 6-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Pm = __4.52 Q1.85__ C1.85 dm4.87 Where Pm is in pounds per square inch per foot length of pipe, Q is flow in gallons per minute, dm is the actual internal diameter of the pipe in inches and C is the friction loss coefficient of the pipe In SI units Pm = 6.05 x _4.52 Q1.85 _ x 105 C1.85 dm4.87 where: Pm = bars per meter length of pipe dm = the actual internal diameter of the pipe in mm Q = C flow in liters per minute = friction loss coefficient of the pipe Table 6-4 Hazen Williams C values Pipe or Tube Material 100 Black steel (Dry Pipe Systems) 100 Black steel (Dry Pipe Systems) 120 Galvanized (all) 120 Plastics (listed) –all 150 Cement Lined ductile or Cast Iron 140 Table 6-5 Fittings and Valves 6.5.3 C Value Unlined Cast or Ductile Iron Equivalent Pipe Length Chart Equivalent Pipe lengths in feet 1 in 1.25 in 1.5 in 2 in 2.5 in 3 in 4 in 5in 6in 45˚ Elbow 1 1 2 2 3 3 4 5 7 90˚ Standard Elbow 2 3 4 5 6 7 10 12 14 90˚ Long Radius Elbow 2 2 2 3 4 5 6 8 9 Tee or Cros 5 6 8 10 12 15 20 25 30 Butterfly Valve - - - 6 7 10 12 9 10 Gate Valve - - - 1 1 1 2 2 3 Swing Check Valve 5 7 9 11 14 16 22 27 32 Wet and Dry Standpipe Systems General: A stand pipe system is an ideal supplement to an automatic sprinkler system. A hose stream provides a high concentrated volume of water to a fire. There are two (2) types of systems the first is the wet standpipe system which has water in the pipes all the time and a dry standpipe system is filled with water prior to use. 6-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 6-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Recommended Basic Water Requirements for Human Needs. a Purpose Recommended Minimum (liters/person/day) Range (liters/ person/ day) Drinking Water 5 2 to 5 Sanitation Services 20 0 to over 75 Bathing 15 5 to 70d Cooking and Kitchen 10 10 to 50d Total Recommended Basic 50 Water Requirement Source: Gleick, Peter H. “Basic Water Requirements for Human Activities: Meeting Basic Needs” Water International, Vol. 21, No. 2(1996). Page 88. a. b. c. d. 6.6.2 Excluding requirement to grow food. This is a true minimum to sustain life in moderate climactic conditions and with average activity levels. An average (not minimum) of 40 l/p/d is considered adequate for direct sanitation hookups in industrialized countries. The upper end of the range represent extremely inefficient toilets. In water short regions, sanitation systems that use no water are available, but rarely embraced socially. The upper values here represent societal preferences for moderately industrialized countries. Use in some water-rich regions may exceed these amounts. The lowest values reflect minimum uses in developing countries. Sizing Overhead Tanks, Transfer Pumps and Level Control Overhead tanks supplied from cisterns shall be sized for a capacity of one day. Float switches may be provided to activate transfer pumps. Transfer pumps shall be provided to move water from the cistern to the overhead tank. Water shall be transferred from the cistern to the overhead tank for a period not exceeding two hours. Pumps operating in parallel is the preferred configuration. Each pump shall be one-half the capacity of the maximum demand. A third pump may be provided as a stand-by unit. Pipes shall be sized for a velocity of 1 – 3 m/sec. The flow through black iron pipes is indicated in Table 6-7. Table 6-7 Flow through Schedule 40 B.I. Pipes in Liters per Minute Velocity NominalPipe Size (inches) (mps) Internal diameter (inches) 0.75 1 1.25 1.5 2 2.5 3 4 0.824 1.049 1.38 1.61 2.067 2.469 3.068 4.026 1 21 34 58 79 130 189 287 384 2 41 67 116 158 261 372 574 768 3 62 101 174 237 391 558 862 1,152 Calculating the total developed head (TDH) of the pump involves the summation of the friction loss in feet of the pipe from the cistern to the overhead tank plus the static head in feet between the cistern and tank. Pump Total Develop Head = Pipe Friction Loss+ Static Head+Velocity Head. 6-10 The Hazen-Williams formula mentioned in Section 5.5.2 may be utilized to calculate friction loss. Pump selection shall take into account the available power supply and the technical capability of the user to operate and maintain the system. The Pump Horsepower assist the designer in determining the horsepower of the pump to guide him in selecting the appropriate unit. Pum motor horse power may be determined as follows: 𝑃𝑃𝑃𝑃𝑃𝑃𝑃𝑃 𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚𝑚 ℎ𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜𝑜 = Example: 𝐹𝐹𝑙𝑙𝑙𝑙𝑙𝑙 ( 𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔𝑔 𝑚𝑚𝑚𝑚𝑚𝑚 ) × 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇 𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑 ℎ𝑒𝑒𝑒𝑒𝑒𝑒 (𝑓𝑓𝑓𝑓𝑓𝑓𝑓𝑓) 3960 × 𝑝𝑝𝑝𝑝𝑝𝑝𝑝𝑝 𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒 Assume a two (2) storey school building with a canteen catering to a total population of 360 students, teachers and staff. It is required that am overhead tank, cistern tank connected by a pump and piping will be required. The pipe is 15 m long, with 3 elbows, 3 gate valves, 1 check valve. Based on Table 6-6, each person will require 35 liters per day (drinking: 5 l, sanitation 20 l, cooking and kitchen:10 l) The overhead tank is calculated: Over head tank capacity = 360 persons x 35 liters/person/day Table 6.6) = 12,600 liters (or 3,315 gallons) The cistern tank is a minimum of 2.5 times the overhead tank. The capacity is: Cistern tank capacity = 12, 600 liters x 2.5 = 31,500 liters To fill the tank in an hour, the pump flow capacity must be: Pump capacity = 12,600 liters / 60 minutes = 210 liters/ minute (55.25 gallons/minute) From Table 6-5, a pipe 50 mmØ will be used. The fittings to be used are: If the floor to floor height is 3.6 m and a sink is 1.0 m above the floor, an overhead tank may be mounted approximately 4.5 m above the point of use. The total height shall therefore be 9.1 m above the ground or 30 feet. Pipe length = 15 m = 49 feet Equivalent pipe length of fittings (Table 6.5): Elbows: 3 x 5 Gate Valve: 3 x 1 Check valve 1 x 11 Total = 15 feet = 3 feet = 11 feet = 29 feet Pm = __4.52 Q1.85__ = __4.52 x 55.251.85___ = 0.031 psi C1.85 dm4.87 1201.85 x 2.0674.87 Pipe friction loss = (49 feet + 29 feet) x 0.031 psi = 2.48 psi x 2.31 feet H2O /psi = 5.7 feet 6-11 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure 6-1 PROJECT ROOM NO/DES. DATE Design Month Design Time Item Sample Work Sheet for Mechanical Engineer July 4:00 PM Factor CONDITIONS Extension DB Sun Gain or Tem p Outdoor 95 82 56 78 146 Diff. Room 75 62.5 50 60 78 Difference 20 XXX XXX XXX Solar Gain - Glass N Glass Sq. Ft. x 33 x 0.94 = S Glass Sq. Ft. x 11 x 0.94 = E Glass Sq. Ft. x 11 x 0.94 = People x W Glass Sq. Ft. x 153 x 0.94 = Sq Ft Sq. Ft. x 112 x 0.94 = Skylight BYPASS FACTOR Extension OUTDOOR AIR 20 cfm/person = x cfm/sf = = CFM Ventilation Solar Gain - Walls & Roof APPARATUS DEW POINT N Wall Sq. Ft. x 13 x 0.49 = Effective S Wall Sq. Ft. x 31 x 0.49 = Sens. Heat = Eff. Rm Sen. Heat = E Wall Sq. Ft. x 17 x 0.49 = Factor Eff. Rm. Total Ht. W Wall Sq. Ft. x 31 x 0.49 = Roof - Sun Sq. Ft. x 46 x 0.49 = Roof - Shaded Sq. Ft. x x = Tansm ission Gain - Except Walls & Roof Indicated ADP Selected ADP DEHUMIDIFIED AIR QUANTITY = ADP Temp = All Glass Sq. Ft. x x = - Partition Sq. Ft. x x = - Ceiling Sq. Ft. x x = - Floor Sq. Ft. x x = - ERSH Infiltration CFM x = - Fx x 245 = - x TRM - TADP = x ADP TD= = cfm Difference DTR =(1- BF) 1.08 Internal Heat COIL CONDITIONS People Coil Entering Tem perature Pow er hp x 2545 = - Entering Air Lights w atts 3.413 x 1.25 = - OA cfm FDB - Appl., etc. x = - RA cfm FDB - Additional Heat Gains x = Total cfm Mixed Air cfm - Sub-Total 10 % Safety Factor = = Room Sensible Heat Flow Temperature - Additional Heat Gain Temperature cfm Gr/lb - RA cfm Gr/lb - - Total cfm RA Duct Heat Gain % - Mixed Air cfm % cfm x - BF x BF x - TADP + ( CFM TADP) = x x People 0.68 = x = x 1050 = Appl., etc. x = Additional Heat Gains x = Steam lb/hr Sub-Total % Safety Factor Room Latent Heat = - = - = - Additional Heat Gain OA cfm x BF X ( BF x BF x - Effective Room Latent Heat OUTDOOR AIR HEAT Sens cfm x (1- BF)x x 1.08 = - Lat cfm x (1- BF)x x 0.68 = - = - GRAND TOTAL HEAT TEDB - e LATENT HEAT Infiltration Gr/lb Coil Lvg Conditions - Effective Room Sensible Heat SUM OA % OA FDB Flow SA Duct Heat Gain Fan HP SUM Humidity Entering Air 6-14 WB %RH DP Gr/Lb Area or Quantity BTUH FDB Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Horizontal Sub-system Backbone Cable (Data-Fiber Optic Media) The horizontal cabling subsystem extends from a Floor Distributor (FD) to the telecommunications outlet connected to it. The subsystem includes: Fiber Optic Cable: Multi-mode and single-mode optical fiber cable shall be of tight buffered or loose tube construction suitable for indoor or outdoor applications and PVC or LSOH outer jacket. Horizontal cables. Jumpers and patch cords in the floor distributor. Mechanical termination of the horizontal cables at the telecoms outlet. Consolidation point (optional) Horizontal cabling shall be Category 6 , 23 AWG, 4-pair UTP cable , with a PVC jacketing material Telecommunications outlets. Impedance: 100 ohms + 15%, 1 MHz to 250 MHz Category 6 patch panels shall be 1U high and support 24 modular jack ports or 2U high and support 48 modular jack ports, and shall accept RJ-45, 8-Position modular plugs Patch panels shall terminate the building cabling on an IDC (Insulation Displacement Connector) type connector or module Category 6 UTP modular jack insulation displacement contacts shall be capable of terminating solid conductors from Ø 0.5 mm to 0.65 mm (24 to 22 AWG) The installed system shall comply with the Category 6 performance characteristics as required by TIA and ISO standards. Patch Cords: Patch cords shall be provided when patching of voice and / or data circuits is required at the cross-connections. The patch cords supplied shall be able to support the designed applications. The patch cord shall include the following features: The fiber optic cables shall meet the specifications and transmission specification defined under TIA and ISO standards. Fiber Connect Panel / Fiber Optic Patch Panel Patch Panel: The patch panel shall include the following features: Mechanical termination of the horizontal cables at the floor distributor including the connecting hardware of the inter-connect or cross-connect. Horizontal Cable: The horizontal cable shall meet the following characteristics: RJ-45 Cat 6 patch cords shall be installed for equipment and patch panel Patch cords shall be factory terminated with 4-pair UTP Cat6 stranded cable Backbone Sub-system The cable route within a building, connecting telecommunications rooms to the equipment room is called the backbone cabling. The building backbone cabling subsystem extends from Building Distributor (BD) or Main Distribution Frame (MDF) to the Floor Distributor (FD) or Intermediate Distribution Frame (IDF). 7-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The patch panel shall include the following features: Modular design with snap in SC or LC adaptors Equipped with fixing mechanism that ensures cable retention and support of incoming fiber optic cable Be able to accommodate both direct termination or splicing Fiber Optic Connector The patch cord shall include the following features: The fiber optic connector shall be field installable using either a two component epoxy glue or direct termination of factory pre-polished connectors The fiber optic connectors shall be LC or SC type Fiber Optic Patch Cords The patch cord shall include the following features: Consist of one or two single, tight buffered, multimode graded-index fiber with a 50 micron core with125 micron cladding (multi-mode) and 9 micron core with 125 micron cladding (single mode) to suit the installed fiber optic cable. Factory terminated with LC or SC ceramic connectors at each end. Backbone Cable (Data-Copper Media) UTP (4-pair) Category 6 cable: The backbone cable shall be UTP Category 6 compliant and shall meet the following specifications: Backbone cabling shall be 23 AWG, 4-pair UTP, with a PVC jacketing material. Impedance: 100 ohms + 15%, 1 MHz to 250 MHz. Patch Panel: The patch panel shall include the following features: Category 6 patch panels shall be 1 RU (Rack Unit) high and support 24 modular jack ports or 2U high and support 48 modular jack ports, and shall accept RJ-45, 8-position modular plugs The Cat 6 UTP modular jack insulation displacement contacts shall be capable of terminating solid conductors from Ø 0.5 mm to 0.65 mm (24 to 22 AWG) 7-5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The installed system shall comply with the Category 6 performance characteristics as required by TIA and ISO standards Faceplate Patch Cords: Patch cords shall be provided when patching data circuits is required at the cross-connections to facilitate moves, adds and changes (MAC’s). The patch cords supplied shall be able to support the designed applications. The patch panel shall include the following features: RJ-45 Cat 6 patch cords shall be installed for equipment Patch cords shall be factory terminated with 4-pair UTP Cat6 stranded cable Be 0.50 mm (24AWG) solid bare copper The nominal diameter or maximum jacket diameter shall not exceed 13.0 mm. Jacketing material ,non-plenum polyvinyl chloride(PVC) IDC Wiring Block: IDC Wring Block – All multi-pair voice backbone cable shall be terminated on a 10-pair, 25-pair , 50-pair or 100-pair insulation displacement connection (IDC) module or wiring block and shall: Be made of flame-retardant thermoplastic, with the base consisting of horizontal index strips for terminating UTP cable conductors. Have bases available in rack or frame configurations and for rack mounting with cable management hardware. Shall comply with TIA (Cat 5e) or ISO 11801: (Class D). Jumper Wire: The cross-connect or jumper cable shall be 100 ohms balanced UTP cable in 1-pair or 2-pair configuration. It shall be Category 5e compliant and shall meet the following specifications: Be 0.50 mm (24AWG) solid bare copper Shall comply with TIA (Cat 5e) or ISO 11801: (Class D) Work-area Sub-system The work area subsystem includes patch cords, connectors, faceplates, and telecommunications outlet as well as the work area patch cords (equipment cord) needed to make connections. A minimum of one work area outlet location containing one voice and data shall be installed per work area. The subsystem includes: Patch Cords 7-6 RJ-45 Cat 6 patch cords shall be installed for the user work area A choice of 1,2,3,4 outlets A clear label for application of circuit identification Shutter door for dust and contaminants protection Accepts RJ45 jacks Telecommunications Outlet Backbone Cable (Voice-Copper Media) UTP (25-pairs) Category 5e cable: The voice backbone cable shall be 100 ohms balanced UTP multi-pair cable in 25-pair cable configuration. It shall be Category 5e compliant and shall meet the following specifications: Patch cords shall be factory terminated with 4-pair UTP stranded cable 7.3.3 Modular jacks shall be un-keyed, unshielded, 4-pair, RJ-45, and shall fit in a standard utility box or modular system furniture raceway The insulation displacement connectors shall be capable of terminating solid cable conductors from Ø 0.5 mm to 0.65 mm (22-24 AWG). Telecommunication Spaces The design considerations and standards for telecommunications spaces and rooms are described in TIA and ISO standards. The design for the telecommunications spaces must ensure that the operational requirements addressed and objectives are met. Equipment Room (ER): An Equipment Room provides a controlled environment to house telecommunications equipment, termination hardware, splice closures, grounding and bonding facilities and protection apparatus where applicable Equipment Room(ER) shall be designed and provisioned according to the requirements of the standards. Telecommunications Room (TR): A Telecommunications Room is an enclosed space for housing telecommunications equipment, cable terminations, interconnect and cross-connect. Telecommunications Rooms (TRs) differ from equipment rooms (ERs) and entrance facilities (EFs) in that they are generally considered to be floor serving. Entrance Facility (EF): An Entrance Facility is a room or facility that provides all necessary mechanical and electrical services that complies with all relevant regulations, for the entry of telecommunications cables and other utility service provider entrance cables into the building. Building Distributor (BD): Building Distributor is the central point in a building from where the building backbone fans out. It can be a single wiring closet, multiple closets, a room or it can be combined with a floor distributor. Floor Distributor (FD): A Floor Distributor is a floor serving facility that is used to connect the horizontal cable and other cabling sub-systems or equipment. Design Requirements During the design phase, there are a number of electronics and communication infrastructure requirements that must be addressed by the electronics design 7-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures engineer and shall be coordinated with the A/E (Architectural / Engineering) for space planning. Room Location There are a number of factors that need to be considered when placing Telecommunications Spaces (TS) within a new building or facility. Site selection factors for the telecommunications rooms or spaces are listed below. Telecommunications Spaces shall be: Dedicated to the buildings telecommunications function and related support facilities. Located adjacent to vertical backbone pathway and as close as possible to the center of the area served and preferably in the core area so that the average horizontal cable run is 50 m or less and no individual cable run shall exceed 90 m, minimizing the length of the backbone and horizontal distribution cables. Located in a clean and dry area that is not subjected to flooding. Accessible directly from public hallways and not through offices or other utility spaces. Telecommunications Spaces shall not: 7-8 Be shared with electrical equipment, building services or other equipment other than those required in direct support of the telecoms equipment and services. Contain other building systems, such as fire alarm panels, access control systems, building management systems, audio-visual (A / V) equipment, etc. Be located near electrical power supply transformers, elevator or pump motors, generators, x-ray equipment, radio transmitters, induction heating devices and other potential sources of electromagnetic interference (EMI) and radio frequency interference (RFI). Be located near sources of mechanical vibration that could be conveyed to the room via the building structure. Contain equipment not related to the support of the telecommunications function (such as sprinkler, chilled water, supply and waste piping, ductwork) shall not be installed in, pass through, pass overhead o enter the telecommunications space. Be located below water level unless preventive measures against water infiltration are employed. Be located in any place that may be subject to water or steam infiltration, humidity from nearby water or steam, heat and any other corrosive atmospheric or environmental conditions. Share space in electrical closets, washrooms, janitorial closets and storage rooms. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Room Size The size of the Telecommunications Spaces is dependent upon the size of the area that the room will serve and the variety of equipment installed within the room. The Telecommunications Spaces shall provide enough space for all planned termination and electronic equipment and cables that will be installed to within the telecommunications room; including any environmental control equipment, power distribution and uninterrupted power supply or UPS system. Doors The door shall be a minimum of 0.9 m wide and 2.4 m high, without a doorsill. Door shall be fire rated to match the fire rating of the wall in which it is installed, if applicable, or as required by local code requirements. Doors shall not contain a glass viewing window or panel for added security. If it is anticipated that large equipment will be delivered to the Telecommunications Spaces, a double door without a doorsill and center post is recommended. Doors shall open outward (code permitting). Floors Floors shall be sealed concrete or tile to minimize dust and static electricity, removable computer floor or raised flooring shall be of a tile type surface or compact pressure laminate (CPL) type. Floor loading capacity in the rooms shall be designed for a minimum distributed load rating of 100 lbf / ft². If a raised floor system is used, then it is possible the space will have to comply with the requirements of Article 645 Information Technology Equipment section of the National Electrical Code. Walls Interior finishes shall be in a light color to enhance room lighting. At least one wall shall be lined with plywood backboard and mounted vertically starting at 6-inches above the finished floor. All plywood shall be painted with two coats of fire retardant paint. The plywood shall be securely fastened to the wall-framing members. Ceilings For EF and BD, there shall be no suspended ceilings and the walls must be continuous from floor to underside of the floor above. Open structure ceilings shall provide the same environmental conditions as a closed type of ceiling structure. 7-9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 7.3.4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Building Entrance Facility Hard ceilings shall have IMC or EMT type conduit or pipe sleeves installed to facilitate the installation and fire stopping of cables. Building entrance facility is required whenever service provider entrance cables, public and private network cables, cable television service providers including Direct Antenna System (DAS) used by mobile service providers entering the building. Wall anchors shall be flush to the plywood surface as to not obstruct the mounting of cabling hardware. The walls shall be capable of supporting attached equipment. Horizontal pathways shall terminate in the Telecommunications Spaces located on the same floor as the area being served. Be accessible directly from public hallways and not through offices or other utility spaces and accessible for the delivery of large equipment to the room. Vertically aligned or stacked within a multi-floor building; each FD is placed above each floor and shall have easy access to distribution cable pathways. Special Design Considerations Electromagnetic Interference (EMI) The Telecommunications Spaces (TS) shall not be located near electrical power supply transformers, elevators, pump motors, generators, x-ray equipment, radio transmitters, radar transmitters, induction heating devices or other potential sources of electromagnetic interference (EMI). Emergency Back-up Power Sub-panels shall be connected to an emergency power source whenever such a source is provided to the building. Emergency power is especially important in telecommunications spaces and rooms with emergency or life safety systems and critical electronics systems for the building operations that are required to remain operational during power outages that may extend past the systems battery backup capability. HVAC Requirements The special requirement for the TS such as ER and IDF rooms where telecoms and network equipment are housed-in, the electronics design consultant must coordinate with mechanical design consultant for the Heating, Ventilation and Air Conditioning (HVAC) requirements. 7-10 For ER ,the air handling system and environment controls for TS’s shall be continuous and dedicated and designed to provide positive airflow and cooling even during times when the main building systems are shut down. The HVAC unit shall not be powered off the same electrical panel as the telecommunications spaces. For specialized area such as Data Center where the room house-in sensitive electronic components that will generate heat, it shall be provided with proper cooling to maintain operating performance. 7.3.5 The Entrance Facility (EF) room shall be as close as practicable to the building entrance point and shall be located in a dry area not subjected to flooding. The building Entrance Facility (EF) room may be located next to the electrical service room in order to reduce the length of equipment potential bonding conductors to the electrical grounding system. Entrance conduit shall be schedule 40 PVC, corrosion resistant plastic with a 4-inch inside diameter for underground installations. Entrance conduit shall be encased in concrete or cement slurry when the minimum conduit depth cannot be attained and conduits pass under roadways, driveways, where bend points are subject to movement. All entrance conduit penetrations or structural changes shall be approved by the structural engineer of the building. Pathways (Conduit, Cable tray, Trunking, Wireway, and Raceway) The cable must have a defined route that will protect it according to the environment in which it exists. Generally electronics engineers are expected to use common sense to ensure the cable is adequately protected at the same time all installation shall be in compliance with PEC or NEC and TIA or ISO pathways standards. Conduit: Conduit is an enclosed tube made of metal or plastic which provides mechanical protection to the cable. The cable should not take up more than 50% of the available cross-sectional area of the conduit. Maximum pathways capacity shall not exceed a 40% fill. Conduit fill capacity shall not exceed a 40% fill, refer to cabling manufacturer for their cable fill chart for various size and type of conduit with reference to the nominal diameter of their cable. Conduit systems should be available at intervals of no greater than 12 m. Maximum of 30 m between pull points and not more than two 90° bends. The inside bend radius of the conduit must not be less than six times the inside diameter of the conduit. Tray, Trunking, Wireway and Raceway: Tray is a cable containment or pathway type that can hold cables in place as its use implies. The term cable tray is used as the generic term for enclosed / non-enclosed, rigid, cable support structures. The most commonly used form and terminology are: 7-11 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Labeling: Each piece patch panel and outgoing cable from the patch panels shall be labeled. Corresponding labeling and numbering shall also be provided on the telecoms outlets. - Ladder ( the construction looks like a ladder) - Solid-bottom cable tray - Perforated or through cable tray 7.3.6 - Wire tray (welded wire construction) Installation Requirements General: All installation of the Structured Cabling System or Information Technology-Generic Cabling for Customer Premises shall comply with the governing laws and applicable codes and standards. The installer shall be certified and experienced in the proper installation and testing of SCS and trained by the cabling system manufacturer. Installation practices: Install all system components and cross-connect hardware according to manufacturer’s specifications and instruction as well as all applicable local codes and standards. All horizontal and backbone cables shall be installed in the following manner: 7-12 All horizontal cables shall not exceed 90 meters from the telecommunications outlets in the work area to the horizontal cross connect or FD. The cable’s minimum bend radius of 4 times the cable diameter. The maximum cable pulling tension of 25 lbs. shall not be exceeded. The cabling system and support hardware shall be installed so that it does not obscure any valves, fire alarm conduit, boxes, or other control devices. Cables shall be dressed and terminated in accordance with the standards, manufacturer’s recommendations, and best industry practices. Cables shall be neatly bundled and dressed to their respective panels or blocks. Each panel or block shall be fed by an individual bundle separated and dressed back to the point of cable entrance into the rack or frame. Each cable shall be clearly labeled on the cable jacket behind the patch panel at a location that can be viewed without removing the bundle support ties. The cable jacket shall be maintained as close as possible to the termination point. Rack, Panels & Wiring Modules: A unique identifier shall be marked on the connecting hardware. Equipment racks or frames and metallic pathways shall be earthed or connected to the Telecommunications Bonding Backbone (TBB) of the building The TBB backbone shall be used to ground all telecommunications cable shields, equipment, racks, cabinets, raceways, and other associated hardware that has the potential for acting as a current carrying conductor. Firestopping: All firestop systems shall be installed in accordance with the manufacturer’s recommendations and shall be completely installed and available for inspection by the local inspection authorities prior to cabling system acceptance. Cables shall be installed in continuous lengths from origin to destination. Cable shall be installed above fire-sprinkler and systems and shall not be attached to the system or any ancillary equipment or hardware. Faceplates: A unique identifier shall be marked on each faceplate. Grounding and Bonding: Communications grounding and bonding shall be in accordance with the requirements of NEC and TIA or ISO telecommunications bonding and grounding standard and shall be observed throughout the entire cabling system. Personnel Qualification: The installation of SCS, including pathways and conduit layout, wiring, cable termination and, testing shall be done by a certified installer under the supervision of a duly registered Professional Electronics Engineer (PECE) and / or certified designer for Structured Cabling System. Cables: Horizontal and backbone cables shall be labeled at each end. 7.3.7 Apply fire-rated materials into penetrations in fire rated barriers such as penetrations to floor slabs in the telecommunication riser / chase to establish the fire-resistance rating and also to avoid fumes or gases from escaping or penetrating thru the barrier. All penetrations through fire-rated building structures (walls and floors) shall be sealed with an appropriate firestop system. Testing, Administration and Documentation Testing: All cables and termination hardware shall be 100% tested for defects in installation and to verify cable performance under installed conditions. All conductors of each installed cable shall be verified useable by the contractor prior to system acceptance. All UTP and fiber optic cable field testing shall be performed with an approved test device 100% of cables installed shall be tested and shall all result to PASS remarks channel or permanent link. All field testers shall be factory calibrated each calendar year by the field test equipment manufacturer. Test and Evaluation Reports: Provide test documentation after the completion of the project. Summary test results and individual test results shall be part of the close-out submittals and as-built plans. 7-13 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Detectors, initiating devices, manual call points and notification devices shall be installed throughout the building as required by the relevant authority or authority having jurisdiction (AHJ) or the local BFP. All buildings, facilities, structures, and premises, except those locations where protection is not required shall have a fire detection and alarm system that complies with the local fire code (FCP) and applicable codes and standards. Each room shall be separately protected. When a room is divided into sections by walls or partitions, each section shall be separately protected. Areas where Detection is not Required Detectors are not required in the following locations: Toilet or bathroom with a floor area of less than 4 m2. Exhaust ducts exhausting from toilets or bathroom. Spaces under raised floor with a height of 250 mm or less. Spaces above drop ceiling with a height of 1 m or less. Concealed spaces under the roof with a height of 1 m or less. Covered paths, balconies, open-sided covered walkways & staircases, overhanging roof areas, verandas, provided they are not used for storage of goods. Area Limitation A separate zone shall be provided for each 800 m2 of protected floor area. The number of detectors required for this area shall not exceed what is specified by the fire alarm system manufacturer. False Alarm The system designer shall take care that in complying with the design requirements contained herein in this document so that in any given instance it will not result in a system that is prone to false alarms. Any alarm at the control panel shall be treated as a fire until it can be proven to be a false alarm, rather than being treated as a false alarm until proven to be a fire. 7-15 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Monitor and Control of Other Equipment / Systems The requirements for buildings or facilities with sprinkler flow switch, supervisory switch, fire pump, jockey pump and gas suppression panel are: Each sprinkler flow switch shall be monitored by the Fire Alarm and Control Panel (FACP) as one distinct alarm point or zone. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures - Each alarm zone - Each elevator lobby Each jockey pump shall be monitored by the FACP as one distinct alarm point or zone. - Each elevator machine room - Generator set room Each gas suppression panel or pre-action deluge panel shall be monitored by the FACP as one distinct alarm point or zone. - Fire pump room - Inside the enclosed exit stairwell at each floor level One-Way Emergency Communications System (ECS) Pressurization Fan, Exhaust Fan, Smoke Damper, HVAC, Elevator, Security System, Smoke Control System The one-way emergency communications sub-system, when activated by an initiating device going into alarm, shall automatically send out an alarm tone and a pre-recorded warning message, alternating with each other, to serve as the programmed zone alarm. The requirements for buildings or facilities with pressurization fan, exhaust fan, smoke damper, HVAC, elevator, security system, smoke control system are: A one-way Emergency Communications System(ECS) or Emergency Voice Alarm Communication(EVAC) shall be required for the following facilities: The microphone shall be secured inside the locked FACP cabinet, and shall be accessible only to responsible personnel authorized to operate it. - airports - transportation terminals with total floor area, including indoor loading / - seaports unloading and parking areas, of more than 10,000 m2. - office buildings with total floor area of more than 20,000 m2 - buildings classified as high rise building (75 ft or 23 m. above ground level) Two-Way Telephone Communications System The two-way telephone communications system or fireman’s telephone shall be part of the fire alarm system and used by the fire responders in the event of fire or emergency: 7-16 At least one telephone jack shall be provided at the following locations: - Each floor level Each fire pump shall be monitored by the FACP as one distinct alarm point or zone. A one-way emergency communications system or emergency voice alarm communications (EVAC) shall form part of the fire alarm system: If telephone jacks are used instead of telephone stations, at least two portable handsets shall be stored at the Fire Command Center or FACP for use by the responsible authorized personnel or emergency responders For addressable systems with more than 200 automatic detectors, a two-way telephone communications system shall be required The FACP shall be capable of individually selecting the phone circuits for communication and each telephone jack shall be labeled as specified The two-way telephone communications sub-system shall operate on a common talk or conference call mode Each pressurization fan shall be controlled by the FACP as one distinct output point or zone. Each exhaust or ventilating fan shall be controlled by the FACP as one distinct output point or zone. Each smoke damper shall be controlled by the FACP as one distinct output point or zone. Each air handling unit (AHU) shall be controlled by the FACP as one distinct output point or zone. Each elevator shall be controlled by the FACP as one distinct output point or zone. Each elevator shall be controlled by the FACP as one distinct output point or zone. The electrically-controlled doors of the security access control system shall be controlled by the FACP as one output group. Each smoke control door, wall, or partition shall be controlled by the FACP as one distinct output point or zone. Primary Power Supply The primary power supply to the fire alarm control panel and the entire system shall be from the electric utility company, normally direct or derived 220 ~ 240 VAC single phase. 7-17 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The primary power supply circuit shall be terminated to the integral power supply inside the FACP cabinet and no external switch shall be installed between the circuit breaker at the electrical distribution panel and the FACP. The primary power supply shall come from a dedicated and exclusive branch circuit. Secondary Power Supply / Battery Capacity The secondary power supply, normally use a gel cell or nickel cadmium batteries with an automatic charger. The secondary power supply shall have sufficient capacity to operate the system under normal non-alarm condition for a minimum of 24 hours, and at the end of that period, capable of operating all alarm notification appliances and emergency communications systems for a period of 5 minutes. The changeover from primary to secondary power supply on primary power failure, and from secondary to primary power supply on primary power restoration, shall be automatic. The system operating on secondary power supply is considered a trouble condition. Building Management System 7.4.3 A building management system (BMS) shall not control the functions of the FDAS but can only monitor it. It shall not be used to replace in whole or in part the FDAS. The FDAS shall be capable of operating independently at all times. System Components, Device and Equipment All components shall be listed (UL) by institutions recognized by relevant authorities and suitable to use in the locality or region. Fire Alarm Control Panel The FACP shall be programmable equipped with panel mounted LCD text display which will indicate the location of the alarm and fault and resets events showing the date and time with the zone and loop number. Location and Environment 7-18 The FACP or network display shall be located in the fire command center of the building or complex. In the absence of a fire command center, it should be located ideally in a position clearly visible from the main entrance or lobby of the building. If the fire alarm panel is located in another location acceptable to the AHJ, an annunciator or repeater panel that fully mimics it shall be installed in a position clearly visible from the main entrance of the building. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Smoke Detectors The installation of smoke detectors shall comply with the listed spacing specified in the code (NFPA 72) as applicable and appropriate. Smoke detectors shall be designed for detection of abnormal smoke densities by the photoelectric or ionization principle and shall have a time delay to prevent false alarm. The placement of smoke detectors is very important. Sleeping areas need the most protection. Location and Spacing of Smoke Detectors Smoke detector shall be located on the ceiling. If installed on a sidewall, it shall be located at a point not more than 300 mm from the ceiling to the top of the detector. The quantity of smoke detectors connected on a single zone of a conventional system, or to a zone monitor module in a semi-addressable system shall not be more than 20. For flat ceilings with a height of not more than 4 m, the following shall be complied with: - Smoke detector spacing shall not be more than 9 m and all points on the ceiling shall have a detector within a distance of 6.4 m. - Spacing of detectors from walls or partitions shall not be less than 300 mm and not more than 4.5 m. Smoke detectors shall not be installed less than 500 mm from any air supply diffuser or outlet, or any other ceiling devices or fixtures that may cause electromagnetic induction. For ceilings with a height of more than 6 m, spot-type smoke detectors shall not be used, instead, beam-type smoke detectors shall be used. Heat Detectors Heat detectors are normally used where the speed of operation of smoke detectors is not required or where, for environmental or other such reasons, smoke detectors cannot be used in the system. In such circumstances, heat detectors can provide an acceptable, though less sensitive alternative. Heat detectors are designed to operate when the temperature rises abnormally quickly or when a pre-selected temperature is reached. Location and Spacing of Heat Detectors Heat detector shall be located on the ceiling. If installed on a sidewall, it shall be located at a point not less than 150 mm and not more than 300 mm from the ceiling to the top of the detector. For flat ceilings of not more than 4m, heat detector spacing shall not be more than 7.5 m. Therefore, all points on the ceiling shall have a detector within a distance of 5.3 m. 7-19 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Spacing of detectors from walls or partitions shall not be less than 150 mm and not more than 3.75 m. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures A heat detector shall not be installed in a location wherein the ambient condition is such that the relative humidity is above 93%. Beam Type Smoke Detector This type of detector is specifically designed for interior use in large open–type areas, such as warehouses, workshops, etc. where the installation of point–type detectors would be difficult.For ceilings with a height of more than 6 meters, beam-type smoke detectors shall be used in place of spot type smoke detectors: Location of Beam Type Detectors The beam length and width coverage shall not exceed the maximum permitted by the manufacturer’s published specifications and instructions. Beam-type detectors and mirrors or reflectors shall be mounted on stable surfaces to prevent false operation or trouble occurrences due to movement. Beam-type detectors and mirrors or reflectors shall be mounted on stable surfaces to prevent false operation or trouble occurrences due to movement. The duct smoke detector shall be listed for use with the air velocity present in the duct. Further, it shall be listed for use over the complete range of temperature and humidity expected at the detector when the AHU is operating. The duct smoke detector shall be installed in such a way as to obtain a representative sample of the airstream. To achieve this, the detector shall be installed outside the duct with rigidly mounted sampling tubes protruding into the duct. Manual Pull Station Manual fire detection is achieved through the activation of fire alarm manual pull station or call point. The basic principle of manual pull station is that no one should be able to leave a building or a storey of a building, without passing a manual pull station or call point. The fire code recommends that manual pull stations should be located on escape routes or fire exits. Location and Mounting of Manual Pull Station 7-20 Manual fire alarm stations shall be located within 1.5 m of each exit door on each floor. Additional manual fire alarm stations shall be so located that from any point within the building, the travel distance to activate the alarm shall not be more than 30 m, measured horizontally on the same floor. Manual fire alarm boxes or pull stations shall be constructed with clearly visible operating instructions provided on the cover and the word ‘FIRE’ shall appear on the front of the stations. The alarm sound from audible notification appliances shall be clearly audible throughout the floor and / or building in which they are installed. It should be sufficient to warn and initiate evacuation of all occupants for whom the alarm sound is intended. Location of Duct Type Detectors Manual fire alarm stations shall be mounted on a background of contrasting color, and in a well-lighted location, so that they can be easily seen. Notification Appliances Duct Type Smoke Detector For centralized air-conditioning systems, the return air duct of all air handling units (AHU) shall be equipped with a duct-mounted smoke detector. Manual fire alarm stations shall be installed at a height of 1.4 m above the finished floor level and shall be located at easily accessible points, free from obstructions. Audible and visible notification appliances that produce audible and visible alarm signals, such as horn strobes or speaker strobes, shall be used in all public building. Any other facility that does not use audible or visible notification appliances shall be subject to the approval of the AHJ. A sufficient number of audible notification appliances shall be used to produce a minimum sound level of 65 dBA, or 10 dB above the ambient noise level and having a duration of at least 30 seconds. The sound level produced by audible notification appliances and the ambient noise combined shall not exceed 115 dBA. The horizontal spacing between notification appliances shall not be more than 30 m. Trouble conditions in the system shall not cause the automatic activation of any notification appliance. For facilities that use the bell sound as part of regular operations, such as schools, horns or sounders shall be used instead. Annunciator Panel For all buildings or facilities, at least one secondary display, such as a LCD display that annunciates the exact information shown at the FACP primary display, shall be installed in another appropriate location within the protected premises. The zone annunciator shall be directory type or graphical type, wherein the display or indicator lamp would represent one alarm zone. In buildings or facilities where people sleep, such as hospitals, or the like, at least one zone annunciator per floor level shall be installed so that occupants get immediate information on the location of the fire detection. 7-21 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 7.4.4 In office buildings, hospitals, or the like, wherein the automatic detectors inside the rooms or units on the same floor are connected as a zone, an indicator light or annunciator shall be installed outside the room and clearly visible from the corridor to indicate the actuation of the detectors. Installation Requirements All installation of the fire alarm system shall comply with the applicable codes and requirements referred herein and approved by the authority having jurisdiction (AHJ). The installation of FDAS, including conduit layout works, wiring, equipment mounting and installation, equipment connection and termination, programming, testing and commissioning, shall be done by qualified personnel or by installers under the supervision of qualified personnel. Fire Alarm Cable: NEC Article 760 covers the installation of wiring of fire alarm systems, including all circuits controlled and powered by the fire alarm system. Wiring shall be in accordance with local and national codes and as recommended by the manufacturer of the fire alarm system. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures shall be subject for final inspection to be conducted by in the presence of the authorized representative and electronics engineer. As-built Plans and Drawings: As-built plans and drawings of the complete installation including all floor plans and a single line diagram of the system shall be provided to the user before final inspection by the AHJ. A copy of the as-built drawings shall be on hand at the Fire Command Centre or near the FACP at all times. Operation and Maintenance Manuals: Operation and maintenance manuals of the installed equipment shall be provided to the user and shall include complete trouble-shooting instructions and guidelines. A complete copy shall be on hand at the Fire Command Centre or near the fire alarm control panel. All wire and cable shall be UL listed and approved by a recognized testing agency for use for fire alarm and protective signaling system. Number and size of conductors shall be as recommended by the fire alarm system manufacturer, but not less than 18 AWG (1.02 mm) for Initiating Device Circuits, Signaling Line Circuits and Notification Appliance Circuits. Conduits and boxes: All conduits and boxes shall be in accordance with the Philippine Electrical Code (PEC), NEC and local code requirements. All boxes and cabinets shall be approved particular use and purpose. Where required, all wiring shall be installed in conduit or raceway. Conduit fill shall not exceed 40% of interior cross sectional area where three or more cables are contained within a single conduit. Cable must be separated from any open conductors of power, or Class 1 circuits, and shall not be placed in any conduit, junction box or raceway containing these conductors. Testing Documentation and Administration Testing: The service of a competent, factory-trained engineer or technician authorized by the manufacturer of the fire alarm equipment shall be provided to technically supervise and participate during all of the adjustments and tests for the system. All installation shall tested in accordance with the requirements of the code the tests should be conducted by in the presence of the authorized building representative and Engineer On Record (EOR) .The test results should be entered in the log or record. Final Inspection: At the final inspection, a factory-trained representative of the manufacturer of the major equipment shall certify and demonstrate that the system functions properly in every respect. All devices and equipment tested 7-22 7-23 8-5 567.8 – 946.3 Public Institutions other than hospitals 283.9 – 473.1 Factories (Liters /person/shift. exclusive of industrial waste) 56.8 -132.5 28.4 Public parks with bathhouse, showers and flush toilets 37.8 Swimming pools and bathing places* 37.8 Laundry residences 378.5-567.8 Country Clubs per resident members* 94.6 – 189.3 Country clubs per member present* 94.6- 189.3 Source: Excerpts from Table1ofChapterXVII–IRRCodeonSanitationofthePhilippinesPD856 1 per room each for each 1 per 25 Over 150, add one fixture for each additional 50 males 1:1-100 2:101-200 3:201-400 4:401-600 Over 600, add one fixture for each additional 300 males for Urinals (Fixtures/Person) Minimum Requirements for Various Occupancies Public picnic parks (toilet waste only) Hospitals Hospitals* (Liters per bed) Over 55, add 1 fixture for each additional 40 persons 56.8 0:1-9 1:10-50 Add one fixture additional 50 males 283.9 - 378.5 1: 1-15 3:16-35 4: 36-55 75.7 1: 1-15 2: 16-35 3: 36-55 Day school with cafeteria but no gym or showers (Quantity estimated from maximum no. expected to use gyms and showers in one day) Hospitals –for employee use 45.4 1 per room Day school with cafeterias but not gymnasiums or showers (Quantity estimated from no. of meals served or 80% of enrollment) Hospital waiting rooms 30.3 1 per dwelling or apartment unit Day school without cafeterias, gymnasium or showers* Dwellings Single dwelling Multiple dwelling or apartment houses 189.3 Over 55, add 1 fixture for each additional 40 persons Work and construction camps (semi-permanent) 1 per 50 Day workers at schools and offices 283.9 - 378.5 1: 1-15 3:16-35 4: 36-55 Boarding schools 189.3 1: 1-15 2: 16-35 3: 36-55 132.5 - 189.3 Dormitories for Staff use Tourist camps or trailer parks 1 per 8 26.5 – 37.8 Add 1 fixture for each additional 25 males (over 10) and 1 for each additional 20 females (over 8) 3.8 - 11.4 Kitchen wastes at hotels, camps, boarding houses, etc. serving 3 meals/day 1 per 10 Restaurants (kitchen waste per meal serve) Dormitories School 189.3 Over 400, add one fixture for each additional 500 males and 1 for each additional 125 females Hotels and motels 3: 1-50 4:51-100 8:101-200 11:201-400 189.3 1: 1-100 2: 101-200 3: 201-400 Boarding houses Assembly places, theaters, Auditoriums, convention halls, etc. for public use 151.4 Over 55, add 1 fixture for each additional 40 persons Rooming houses Male Only 189.3 0:1-9 1:10-50 Add one fixture additional 50 males Multiple Family use Female Luxury camps 283.9 – 378.5 1: 1-15 3:16-35 4: 36-55 Resort camps (night and day) with limited plumbing 189.3 Male Large dwellings with numerous fixtures Liters/Person 1: 1-15 2: 16-35 3: 36-55 Type of Establishment Assembly places, theaters, Auditoriums, convention halls, etc. for permanent employee use Small dwellings and cottages Water Closet(Fixtures/Person) Waste water contribution per capita / day Type of Building or Occupancy Table 8-2 Table 8-1 Female 1: 1-200 2:201-400 3:401-750 1 per 40 1 per 12 1 per 40 1 per room 1 per 40 1 per room 1 per 40 1 per dwelling or apartment unit 1 per 40 Over 12, add 1 fixture for each additional 20 males and 1 for each additional 15 females 1 per 12 Over 750, add one fixture for each additional 500 persons 1: 1-200 2: 201-400 3: 401-750 1 per 40 Male Lavatories (Fixtures/Person) 1 per room 1 per dwelling apartment unit 1 per 8 or 1 per 8 For females , add 1 bathtub per 30, Over 150, add 1 bathtub per 20 Bathtubs or Showers (Fixtures/Person) 1 per 150 1 per 150 1 per 150 1:1-150 2:151-400 3:401-750 Over 750, add one fixture for each additional 500 persons Drinking Fountains (Fixtures/Person) 8-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 8-7 1: 1-10 2: 11-25 3: 26-50 4: 51-75 Industrial Warehouses, workshops, foundries and similar establishments- for employees use 1: 1-15 2: 16-35 3: 36-55 Institutional other than hospitals or penal institutions (on each occupied floor) for employees use 3: 1-50 4:51-100 8:101-200 11:201-400 1: 1-15 3:16-35 4: 36-55 1: 1-15 3:16-35 4: 36-55 1: 1-25 2: 26-100 4: 101-200 8: 201-400 1: 1-15 2: 16-35 3: 36-55 1: 1-20 2:21-50 1 per 40 1 per 40 1 per 150 1 per 150 Secondary Others (colleges, universities, Adult Centers, etc.) Worship places educational and activities Unit Worship places principal assembly place Source: Table 4-1US – Uniform Plumbing Code 2009 1 per 30 1 per 75 1 per 75 1 per 30 1 per 30 1 per 25 Over 50, add 1 fixture for each additional 50 persons 1: 1-20 2: 21-50 Over 55, add 1 fixture for each additional 40 persons 1: 1-15 2: 16-35 3: 36-55 Over 400, add 1 fixture for each additional 500 males and one for each 150 females 1: 1-100 2: 101-200 3: 201-400 6: 201-300 Over 300, add 1 fixture for each additional 200 persons Elementary Schools – for student use Nursery Schools – for staff use All schools Retail or Wholesale Stores 1: 1-50 2: 51-150 3: 151-300 Restaurants, pubs, and lounges 1: 1-50 2: 51-150 4: 151-300 Same as office or Public Building employees use Public or professional offices Female 1 per exercise room Male Water Closet(Fixtures/Person) 1 per cell Over 55, add 1 fixture for each additional 40 persons 1: 1-15 2: 16-35 3: 36-55 Over 55, add 1 fixture for each additional 40 persons 1: 1-15 2: 16-35 3: 36-55 Over 400, add one fixture for each additional 500 males and 1 for each additional 150 females 1: 1-100 2: 101-200 3: 201-400 Cell Exercise room Type of Building or Occupancy Penal institution – for prison use Penal institution – for employees use Office or public buildings – for employees use 1: 1-15 3:16-35 4: 36-55 1 per 20 Over 55, add 1 fixture for each additional 40 persons 1 per 25 Institutional other than hospitals or penal institutions (on each occupied floor) Office or public buildings 1: 1-10 2:11-25 3:26-50 4:51-75 Female Over 100, add 1 fixture for each additional 30 persons 1 per 8 patients Male Water Closet(Fixtures/Person) Individual room Ward Room Type of Building or Occupancy for for each each Public 1 per 150 1 per 150 1 per 35 1 per 35 1 per 75 1 per 50 0:0-25 1:26-100 2:101-200 3:201-400 4:401-600 Over 600, add one fixture for each additional 300 males 0:1-150 Over 150, add one fixture for each additional 150 males Same as office or Building employees use Male Only each each Female 1: 1-200 2:201-400 3:401-750 1 per cell 1 per 40 1 per 40 1 per 40 Over 750, add one fixture for each additional 500 persons 1: 1-200 2: 201-400 3: 401-750 1 per 10 1 per 10 Up to 100, 1 per 10 persons Over 100, 1 per 15 persons 1 per 10 patients Male Lavatories (Fixtures/Person) 1 per 8 1 per 8 1 shower for each 15 persons exposed to excessive heat or to skin contamination with poisonous, infectious or irritating material 1 per 20 patients Bathtubs or Showers (Fixtures/Person) 1 per cell block floor 1 per 150 1 per 150 1 per 150 1 per 150 1 per 150 Drinking Fountains (Fixtures/Person) Female 1: 1-150 2: 151-200 3: 201-400 1: 1-25 2:26-50 1 per 40 1 per 40 1 per 35 1 per 2 water closets 1 per 2 water closets 1 per 40 1 per 40 1 per 35 Over 50, add 1 fixture for each additional 50 persons 1: 1-25 2: 26-50 1 per 40 1 per 2 water closets Over 400, add 1 fixture for each additional 400 persons 1: 1-150 2: 151-200 3: 201-400 Same as office or Public Building employees use 1 per exercise room Male Lavatories (Fixtures/Person) Bathtubs or Showers (Fixtures/Person) 1 per 150 1 per 150 1 per 150 1 per 150 1 per 150 1 per 150 0: 1-30 1:31-150 One additional drinking fountain for each 150 persons thereafter Same as office or Public Building employees use 1 per exercise room Drinking Fountains (Fixtures/Person) 8-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures for for Urinals (Fixtures/Person) 1 per exercise room 0:1-9 1:10-50 Add one fixture additional 50 males 0:1-9 1:10-50 Add one fixture additional 50 males 1:1-100 2:101-200 3:201-400 4:401-600 Over 600, add one fixture for each additional 300 males 0:1-9 1:10-50 Add one fixture additional 50 males 0:1-9 1:10-50 Add one fixture additional 50 males Male Only Urinals (Fixtures/Person) Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 8-9 Drinking Fountains shall not be installed in Toilets rooms. Laundry trays, One (1) laundry tray or one (1) automatic washer standpipe for each dwelling unit or one (1) laundry tray or one (1) automatic washer standpipe or combination thereof, for each twelve (12) apartments. Kitchen sinks, one (1) for each dwelling or apartment unit. Automatic washer standpipe or combination thereof, for each twelve (12) apartments. Kitchen sinks, one (1) for each dwelling or apartment unit. For each urinal added in excess of the minimum required, one water closet shall be permitted to be deducted. The number of water closets shall not be reduced to less than two-thirds (2 / 3) of the minimum requirement. As required by Sanitation in Places of Employment. Where there is exposure to skin contamination with poisonous, infectious, or irritating materials, provide one (1) lavatory for each five (5) persons. 600 mm of wash sink, 450 mm of circular basin, when provided with water outlets for such space, shall be considered equivalent to one (1) lavatory. Laundry trays, one (1) for each fifty (50) persons, Service sinks, one (1) for each hundred (100) persons. General. In applying this schedule of facilities, consideration shall be given to the accessibility of the fixtures. Conformity purely on a numerical basis may not result in an installation suited to the needs of the individual establishment. For example, schools should be provided with toilet facilities on each floor having classrooms. Surrounding materials, wall and floor space to a point 600 mm in front of urinal lip and 1,200 mm above the floor, and not less than 600 mm to each side of the urinal shall be lined with nonabsorbent materials. Through urinals shall be prohibited. A restaurant is defined as a business that sells food to be consumed on the premises. The number of occupants for a drive-in restaurant shall be considered as equal to the number of parking stalls. Hand-washing facilities shall be available in the kitchen for employees Where foods is consumed indoors, water stations shall be permitted to be substituted for drinking fountains. Offices or Public buildings for use by more than six (60 persons shall have one (1) drinking fountain for the first one-hundred fifty (150) persons and one (1) additional fountain for each three-hundred (300) persons thereafter. There shall be at least one (1) drinking fountain per occupied floor in schools, theaters, auditoriums, dormitories, offices or Public buildings. The total number of water closets for females shall be equal to the total number of water closets and urinals required for males. This requirement shall not apply to Retail or Wholesales Stores. For smaller-type Public and Professional Offices such as banks, dental offices, law offices, real estate offices, architectural offices, engineering offices and similar uses. A Public area in these offices shall use the requirement for the Retail or Wholesale Stores. Recreation or community room in multiple dwellings of apartment buildings, regardless of their occupant load, shall be permitted to have separate single-accommodation facilities in commonuse areas within tracts or multi-family residential occupants where the use of these areas is limited exclusively to owners, residents and their guests. Examples are community recreation or multi-purpose areas in apartments, condos, townhouses, or tracts. A drinking fountain shall not be required in occupancies of 30 or less. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. Notes for Table 8-2 1. Building categories not shown on this Table shall be considered separately by the Sanitary Engineer. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 8.3.2 Sanitary Drainage Systems Use of formula and empirical data must be directly applicable to the behavior of liquid waste matter or solutions in terms of velocity, roughness coefficient, slope and pressure. Sanitary and Waste will be designed with a minimum slope of one percent (1%), or as permitted by this DGCS Volume 6. Sizes will be computed using the following: Manning Equations 𝑉𝑉 = Maximum Velocity R S 32 mm 40 mm 50 mm 80 mm 100 mm 1 1 2⁄ 𝑅𝑅 3 𝑆𝑆 ⁄2 𝑛𝑛 Minimum Velocity = 0.75m/sec n = Coefficient of Roughness 0.011 or as specified by pipe manufacturer Velocity of Sewage Flow = = Sewage shall be computed using Drainage Fixtures Unit values in accordance with Section 8.3.1. = Exception: On self-service laundries. - and Q = AV 3.05m/sec Wetted perimeter Slope Fixture Units Equivalents The unit equivalent of plumbing fixtures shown in Table 8-3 shall be based on the size of the trap required, and the unit equivalent of fixtures and devices not shown in Table 8-3 shall be based on the rated discharge capacity in liters per second in accordance with Table 8-4. Maximum trap loadings for sizes up to 100 mm are as follows: - - - - 1unit 3units 4units 8units 6units 8-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Drainage Fixture Unit Values (DFU) Plumbing Appliance, Appurtenance or Fixture Min Trap Size and Trap Arm7 Nonpublic Co on public 2.0 Bath tub or Combination Bath/Shower 38 2.0 Bidet 32 1.0 32 2.0 50 3.0 Bidet ClothesWasher,domestic,standpipe 5 Assembly8 Min Trap Size and Trap Arm7 Nonpublic Co on public Assembly8 Liters/Flush 3.0 3.0 1.0 1.0 Urinal, exposed trap 382 2.0 2.0 5.0 Water Closet, 6.1 Liters / Flush GravityTank6 75 3.0 4.0 6.0 Water Closet, 6.1 Liters / Flush Flushometer Tank6 75 3.0 4.0 6.0 Dental Unit, cuspidor 32 3.0 4.0 6.0 382 2.0 2.0 2.0 Water Closet, 6.1 Liters / Flush Flushometer Valve6 75 Dishwasher ,domestic, with independent drain 4.0 6.0 8.0 32 0.5 0.5 1.0 Water Closet, greater than 6.1 LPF GravityTank6 75 Drinking Fountain or Water cooler (per head) 4.0 6.0 8.0 50 3.0 3.0 Water Closet, greater than 6.1 Liters / Flush Flushometer Valve6 75 Food-waste-grinder, commercial Floor Drain, emergency 50 0.0 0.0 Source: Excerpts from Table 8-3 UPC 2000 Edition Footnotes of Table 8-3: 1. Indirect waste receptors shall be sized based on the total drainage capacity of the fixtures that drain therein to, in accordance with Table 8-4. 2. Provide a 50 mm minimum drain. 3. For refrigerators, coffee maker, water stations, and similar low demands. 4. For commercial sinks, dishwashers, and similar moderate or heavy demands. 5. Buildings having a clothes washing area with clothes washers in a battery of three (3) or more clothes washers shall be rated at six (6) fixture units each for purposes of sizing common horizontal and vertical drainage piping. 6. Water closets shall be computed as six (6) fixture units when determining septic tank sizes based on. 7. Trap sizes shall not be increased to the point where the fixture discharge may be inadequate to maintain their self-scouring properties. 8. Assembly/ Public Use (See Table 8-1) Floor Drain(for Section7.3.2) additional sizes see 50 2.0 2.0 2.0 Shower single head trap 50 2.0 2.0 2.0 Multi-head, each additional 50 1.0 1.0 1.0 Lavatory, single 32 1.0 1.0 1.0 Lavatory in sets of two or three 38 2.0 2.0 2.0 Wash fountain 38 2.0 2.0 Wash fountain 50 3.0 3.0 Mobile Home, trap 75 Receptor,indirectwaste1,3 38 Seenote1 and 3 Seenote1 and 3 Receptor,indirectwaste1,4 50 Seenote1 and 4 Seenote1 and 4 Receptor,indirectwaste 75 Seenote1 Seenote1 1 12.0 Bar 38 1.0 Bar 382 2.0 2.0 Clinical 75 6.0 6.0 Commercial with food waste 382 3.0 3.0 Special Purpose 38 2.0 3.0 3.0 Special Purpose 50 3.0 4.0 4.0 Special Purpose 75 6.0 6.0 Kitchen, domestic (with or without food-waste-grinder and/or dishwasher) 382 2.0 2.0 2.0 Laundry (with or without discharge from a clothes washer) 38 2.0 Service or Mop Basin 50 3.0 3.0 Service or Mop Basin 75 3.0 3.0 Service, flushing rim 75 6.0 6.0 2.0 2.0 Wash, each set of faucets Table 8-4 Discharge Capacity in Liters per Second for Intermittent Flow Only L/sec Sinks 8-11 Plumbing Appliance, Appurtenance or Fixture Urinal, integral trap 3.78 Liters/Flush 3.78 Liters/Flush 1.0GPF2 50 2.0 2.0 5.0 Urinal, integral trap greater than 3.78 50 2.0 2.0 6.0 Up to 0.47 Equals 1 Unit 0.50 to 0.95 Equals 2 Units 1.00 to 1.89 Equals 4 Units 1.95 to 3.15 Equals 6 Units Source: Table 8-4 UPC 2000 Edition Size of Drainage Piping The minimum sizes of vertical and / or horizontal drainage piping shall be determined from the total of all fixture units connected thereto, and additionally, in the case of vertical drainage pipes, in accordance with their length. Table 8-5 shows the maximum number of fixture units allowed on any vertical or horizontal drainage pipe, building drain or building sewer of a given size; the maximum number of fixture units allowed on any branch interval of a given size; and the maximum length (in feet and meters) of any vertical drainage pipe of a given size. 8-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures For a continuous flow into a drainage system, such as from a pump, sump ejector, air conditioning equipment, or similar device, two (2) fixture units shall be allowed for each 0.06 L/sec. of flow. Fixture Connections (Drainage) Drainage piping shall be provided with approved inlet fittings for fixture connections, correctly located according to the size and type of fixture proposed to be connected. Two fixtures set back-to-back, or side-by-side, within the distance allowed between a trap and its vent, may be served by a single vertical drainage pipe provided that each fixture wastes separately into an approved double fixture fitting having inlet openings at the same level. Pot sinks, scullery sinks, dish washing sinks, silverware sinks, commercial dishwashing machines, silverware-washing machines, and other similar fixtures shall be connected directly to the drainage system. A floor drain shall be provided adjacent to the fixture, and the fixture shall be connected on the sewer side of the floor drain trap, provided that no other drainage line is connected between the floor drain waste connection and the fixture drain. The fixture and floor drain shall be trapped and vented as required by these Design Guidelines. Closet Rings (Closet Flanges) Closet rings (closet flanges) for water closets or similar fixtures shall be of an approved type and shall be bronze, copper, hard lead, cast iron, galvanized malleable iron, ABS, PVC, or other approved materials. Each such closet ring (closet flange) shall be approximately 175 mm in diameter and, when installed, shall, together with the soil pipe, present a 38 mm wide flange or face to receive the fixture gasket or closet seal. Caulked-on closet rings (closet flanges) shall be not less than 6 mm thick and not less than 50 mm in overall depth. Closet rings (closet flanges) shall be burned or soldered to lead bends or stubs, shall be caulked to cast iron soil pipe, shall be solvent cemented to ABS and PVC and shall be screwed or fastened in an approved manner to other materials. All such closet rings (closet flanges) shall be adequately designed and secured to support fixtures connected thereto. Closet screws, bolts, washers, and similar fasteners shall be of brass, copper, or other listed, equally corrosion resistant materials. All such screws and bolts shall be of adequate size and number to properly support the fixture installed. 8-13 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures shall be so constructed as to insure a positive mechanical seal. Such backwater valves shall remain sufficiently open during periods of low flows to avoid screening of solids and shall not restrict capacities or cause excessive turbulence during peak loads. Unless otherwise listed, valve access covers shall be bolted type with gasket and each valve shall bear the manufacturer’s name cast into body and cover. The drainage and venting systems in connection with fixtures, sumps, receiving tanks, and mechanical waste lifting devices, shall be installed under the same requirements as provided for in this Guidelines for gravity systems. Sumps and receiving tanks shall be water tight and shall be constructed of concrete, metal, or other approved materials. If constructed of poured concrete, the walls and bottom shall be adequately reinforced and designed to recognized acceptable standards. Metal sumps or tanks shall be of such thickness as to serve their intended purpose and shall be treated internally and externally to resist corrosion. All such sumps and receiving tanks shall be automatically discharged and, when in any “Public use” occupancy, shall be provided with dual pumps or ejectors arranged to function independently in case of overload or mechanical failure. The lowest inlet shall have a minimum clearance of 50 mm from the high water or “starting” level of the sump. Sumps and receiving tanks shall be provided with substantial covers having a bolt and gasket type manhole or equivalent opening to permit access for inspection, repairs, and cleaning. The top shall be provided with a vent pipe which shall extend separately through the roof, or when permitted, may be combined with other vent pipes. Such vent shall be large enough to maintain atmospheric pressure within the sump under all normal operating conditions and, in no case, shall be less in size than that required by Table 7-5 for the number and type of fixtures discharging into the sump, nor less than 38 mm in diameter. When the foregoing requirements are met and the vent, after leaving the sump, is combined with vents from fixtures discharging into the sump, the size of the combined vent need not exceed that required for the total number of fixtures discharging into the sump. No vent from an air-operating sewage ejector shall combine with other vents. Air tanks shall be so proportioned as to be of equal cubical capacity to the ejectors connected therewith in which there shall be maintained an air pressure of not less than 3 kg for each meter of height the sewage is to be raised. No water operated ejectors shall be permitted. When subsoil drainage systems are installed, such systems shall be discharged into an approved sump or receiving tank and shall be discharged in a manner satisfactory to the Sanitary Engineer/ Master Plumber. Grinder Ejector Pump: With the approval of the Sanitary Engineer/ Master Plumber, a grinder pump may be used. A Grinder Ejector pump is used to discharge wastewater that cannot be discharged through a gravity system and 8-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures no joint or pipe in the building (except the uppermost 3.048 m.) of the system shall have been submitted to a test of less than a 3.048 m. head of water. The water shall be kept in the system, or in the portion under test, for at least fifteen (15) minutes before inspection starts. The system shall then be tight at all points. 8.3.4 Air Test: The air test shall be made by attaching an air compressor testing apparatus to any suitable opening, and, after closing all other inlets and outlets to the system, forcing air into the system until there is a uniform gage pressure of 34.5 kPa or sufficient to balance a column of mercury 254 mm in height. The pressure shall be held without introduction of additional air for a period of at least fifteen (15) minutes. Building Sewers Every building in which plumbing fixtures are installed and every premises having drainage piping thereon, shall have a connection to a Public or Private sewer, except as provided below. When no Public sewer, intended to serve any lot or premises, is available in any thoroughfare or right of way abutting such lot or premises, drainage piping from any building or works shall be connected to an approved Private sewage disposal system. Within the limits prescribed by article immediately below hereof, the rearrangement or subdivision into smaller parcels of a lot which abuts and is served by a Public sewer shall not be deemed cause to permit the construction of a Private sewage disposal system, and all plumbing or drainage systems on any such smaller parcel or parcels shall connect to the Public sewer. The Public sewer may be considered as not being available when such Public sewer or any building or any exterior drainage facility connected thereto, is located more than 60.8 meter from any proposed building or exterior drainage facility on any lot or premises which abuts and is served by such Public sewer. No permit shall be issued for the installation, alteration, or repair of any Private sewage disposal system, or part thereof, on any lot for which a connection with a Public sewer is available. On every lot or premises hereafter connected to Public sewer, all plumbing and drainage systems or parts thereof, on such lot or premises shall be connected with such Public sewer. Exception: Single family dwellings and buildings or structures accessory thereto, existing and connected to an approved Private sewage disposal system prior to the time of connecting the premises to Public sewer may, when no hazard, nuisance, or insanitary condition is evidenced and written permission has been obtained from the Sanitary Engineer, remain connected to such properly maintained Private sewage disposal system when there is insufficient grade or fall to permit drainage to the sewer by gravity. 8-22 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Exception: When approved by the Sanitary Engineer and where it is impractical, due to the depth of the street sewer or to the structural features or to the arrangement of any building or structure, to obtain a slope of 20.9 mm/m, any such pipe or piping 100 mm through 150 mm may have a slope of not less than 10.5 mm/m and any such piping 200 mm and larger may have a slope of not less than 5.3 mm/m. Building sewer piping shall be laid on a firm bed throughout its entire length, and any such piping laid in made or filled-in ground shall be laid on a bed of approved materials and shall be adequately supported to the satisfaction of the Sanitary Engineer. 8.3.5 No building sewer or other drainage piping or part thereof, which is constructed of materials other than those approved for use under or within a building, shall be installed under or within 600 mm of any building or structure, or part thereof, nor less than 300 mm below the surface of the ground. The provisions of this subsection include structures such as porches and steps, whether covered or uncovered, breezeways, roofed porte-cocheres, roofed patios, carports, covered walks, covered driveways, and similar structures or appurtenances. Cleanouts Cleanouts shall be placed inside the building near the connection between the building drain and the building sewer or installed outside the building at the lower end of the building drain and extended to grade. Additional building sewer cleanouts shall be installed at intervals not to exceed 30.48 meter in straight runs and for each aggregate horizontal change in direction exceeding one hundred thirty-five (135) degrees (2.36 rad). When a building sewer or a branch thereof does not exceed 3.048 meter in length and is a straight line projection from a building drain which is provided with a cleanout, no cleanout will be required at its point of connection to the building drain. All required building sewer cleanouts shall be extended to grade and shall comply with all appropriate sections of Cleanouts, Section 8.3.6 for sizing, construction and materials. When building sewers are located under buildings, the cleanout requirements of Section 8.3.6 shall apply. Each cleanout shall be installed so that it opens to allow cleaning in the direction of flow of the soil or waste or at right angles thereto, and except in the case of wye branch and end-of-line cleanouts, shall be installed vertically above the flow line of the pipe. Cleanouts installed under concrete or asphalt paving shall be made accessible by yard boxes, or extending flush with paving with approved materials and be adequately protected. 8-24 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Sterile Equipment: Appliances, devices, or apparatus such as stills, sterilizers, and similar equipment requiring water and waste and used for sterile materials shall be drained through an air gap. Appliances: Appliances, devices, equipment, or other apparatus not regularly classed as plumbing fixtures which are equipped with pumps, drips, or drainage outlets may be drained by indirect waste pipes discharging into an approved type open receptor. When the condensate waste from air conditioning coils discharges by direct connection to a lavatory tailpiece or to an approved accessible inlet on a bathtub overflow, the connection shall be located in the area controlled by the same person controlling the air-conditioned space. When undiluted condensate waste from a fuel burning condensing appliance is discharged into the drainage system, the material in the drainage system shall be cast iron, galvanized iron, plastic, or other materials approved for this use. Exceptions: When the above condensate is discharged to an exposed fixture tailpiece and trap, such tailpiece and trap may be brass. Any materials approved in Section 8.3.13 “MATERIALS FOR SANITARY DRAINAGE” may be used when, in the opinion of the Sanitary Engineer, condensate waste from a fuel burning condensing appliance is diluted either before or after discharge into the drainage system. No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without the use of an approved dishwasher airgap fitting on the discharge side of the dishwashing machine. Listed airgaps shall be installed with the flood level (FL) marking at or above the flood level of the sink or drainboard, whichever is higher. Cooling Water: When permitted by the Sanitary Engineer, clean running water used exclusively as a cooling medium in an appliance, device or apparatus, may discharge into the drainage system through the inlet side of a fixture trap in the event that a suitable fixture is not available to receive such discharge. Such trap connection shall be by means of a pipe connected to the inlet side of an approved fixture trap, the upper end terminating in a funnel shaped receptacle set adjacent, and not less than 150 mm above the overflow rim of the fixture. Drinking Fountains: Drinking fountains may be installed with indirect wastes. Steam and Hot Water Drainage Condensers and Sumps: No steam pipe shall be directly connected to any part of a plumbing or drainage system, nor shall any water having a temperature above 60°C be discharged under pressure directly into any part of a drainage system. Pipes from boilers shall discharge by means of indirect waste piping, as determined by the Sanitary Engineer or the boiler manufacturer’s recommendations. 8-30 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Such pipes may be indirectly connected by discharging into an open or closed condenser, or intercepting sump of approved type, that will prevent the entrance of steam or such water under pressure into the drainage system. All closed condensers or sumps shall be provided with a vent which shall be taken off the top and extended separately, full size above the roof. All condensers and sumps shall be properly trapped at the outlet with a deep seal trap extending to within 150 mm of the bottom of the tank. The top of the deep seal trap shall have a 20 mm opening located at the highest point of the trap to serve as a siphon breaker. Outlets shall be taken off from the side in such a manner as to allow a water line to be maintained that will permanently occupy not less than 50% the capacity of the condenser or sump. All inlets shall enter above the water line. Wearing plates or baffles shall be installed in the tank to protect the shell. The sizes of the blow off line inlet, the water outlets, and the vent shall be as shown in Table 8-9. The contents of condensers receiving steam or hot water under pressure must pass through an open sump before entering the drainage system. Table 8-9 Pipe Connections in Blow-off Condensers and Sumps Boiler Blowoff Water Outlet Vent 20 mm* 20 mm* 50 mm 25 mm 25 mm 65 mm 32 mm 32 mm 80 mm 40 mm 40 mm 100 mm 50 mm 50 mm 125 mm 65 mm 65 mm 150 mm Source: Table 8-1 UPC 2000 Edition *To be used only with boilers of 9.29 sq.m of heating surface or less. Sumps, condensers, or intercepting tanks which are constructed of concrete shall have walls and bottom not less than 100 mm in thickness, and the inside shall be cement plastered not less than 12 mm in thickness. Condensers constructed of metal shall be not less than No. 12 U.S. Standard gauge 2.77 mm and all such metal condensers shall be protected from external corrosion by an approved bituminous coating. Sumps and condensers shall be provided with suitable means of access for cleaning and shall contain a volume of not less than twice the volume of water removed from the boiler or boilers connected thereto when the normal water level of such boiler or boilers is reduced not less than 100 mm. Strainers: Every indirect waste interceptor receiving discharge containing particles that would clog the receptor drain shall have a readily removable beehive strainer. Chemical Wastes: Chemical or industrial liquid wastes which are likely to damage or increase maintenance costs on the sanitary sewer system, 8-31 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures mm/m or one percent slope and shall be of approved corrosion-resistant material not smaller than the outlet size as required in either Section 310.3 or 310.4 of the UPC 2000 edition, below for air-cooling coils or condensing fuelburning appliances, respectively. Condensate or waste water shall not drain over a Public way. Indirect Drainage shall be provided for Air-conditioning condensate waste pipes shall be independent of any drainage and waste system and shall not be smaller than shown in Table 8-10. Table 8-10 Minimum Size Condensate Drain Pipes Minimum Condensate Pipe Diameter (mm) Equipment Capacity in Tons of Refrigeration (Kw) Through 3 (Through 10.56) 20 mm Through 20 (Through 70.33) 25 mm Through 90 (Through 316.48) 32 mm Through 125 (Through 439.6) 40 mm Through 250 (Through 879.2) 50 mm Source: Table 8-2 UPC 2000 Edition The size of condensate waste pipes may be for one unit or a combination of units, or as recommended by the manufacturer. The capacity of waste pipes assumes a 10.5 mm/m) or one percent slope, with the pipe running 75% full at the following conditions: Outside Air-20% Room Air – 80% DB 32°C DB 24°C WB 23°C WB 17° a) Condensate drain sizing for other slopes or other conditions shall be approved by the Sanitary Engineer. Air conditioning waste pipes shall be constructed of materials specified in Section 7.3. b) Point of Discharge: Air-conditioning condensate waste pipes shall connect indirectly to the drainage system through an airgap or airbreak to: 8.3.6 A properly trapped receptor To a points of discharge acceptable by Sanitary Engineer, including dry wells, leach pits, the tailpiece of plumbing fixtures, etc. Condensate or waste water shall not drain over a Public way. Traps and Interceptors Each plumbing fixture, excepting those having integral traps shall be separately trapped by an approved type water seal trap. Not more than one (1) trap shall be permitted on a trap arm. One (1) trap may serve a set of not more than three (3) single compartment sinks or laundry tubs of the same depth or three (3) lavatories immediately 8-33 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-12 Grease Traps Total Number of Fixtures Connected Required Rate of Flow per Minute, Liters Grease Retention Capacity, kg 1 76 18 2 95 22 3 132 31 4 189 45 Source: Table 10-2 UPC 2000 Edition Note: For installations with more than four (4) fixtures, the Sanitary Engineer may permit the use of larger grease traps designed not to exceed the parameters of Section 8.3.6.9, but not to exceed 284 liters per minute. Recommended Procedures for Design, Construction and Installation of Commercial Kitchen Grease Interceptors: General: The provisions of this recommended procedure shall apply to the design, construction, installation, and testing of commercial kitchen grease interceptors. Waste Discharge Requirements: Waste discharge from fixtures and equipment in establishments which may contain grease, including but not limited to, scullery sinks, pot and pan sinks, dishwashing machines, soup kettles and floor drains located in areas where grease-containing materials may exist, may be drained into the sanitary waste through the interceptor when approved by the Sanitary Engineer. Toilets, urinals, and other similar fixtures shall not drain through the interceptor. All waste shall enter the interceptor through the inlet pipe only. Design: Interceptors shall be constructed in accordance with the design approved by the Sanitary Engineer and shall have a minimum of two compartments with fittings designed for grease retention. There shall be an adequate number of manholes to provide access for cleaning all areas of an interceptor; a minimum of one (1) per 3.048 m of interceptor length. Manhole covers shall be gastight in construction having a minimum opening dimension of 508 mm. In areas where traffic may exist the interceptor shall be designed to have adequate reinforcement and cover. Location: Each grease interceptor shall be so installed and connected that it shall be at all times easily accessible for inspection, cleaning, and removal of the intercepted grease. A grease interceptor may not be installed in any part of a building where food is handled. Location of the grease interceptor shall meet the approval of the Sanitary Engineer. Interceptors shall be placed as close as practical to the fixtures it serves. Each business establishment for which a grease interceptor is required shall have an interceptor which shall serve only that establishment. 8-39 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures separator shall flow by gravity or shall be pumped to a higher elevation by an automatic pump. Pumps shall be adequately sized and accessible. Waste oil tanks shall have a 50 mm minimum pump-out connection at grade and 40 mm minimum vent to atmosphere at an approved location at least 3.048m above grade. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures approved indirect waste pipes into a floor sink or other approved type receptor. Size of Vents: Design of Interceptors: Each manufactured interceptor that is rated shall be stamped or labeled by the manufacturer with an indication of its full discharge rate in L/s. The full discharge rate to such an interceptor shall be determined at full flow. Each interceptor shall be rated equal to or greater than the incoming flow and shall be provided with an overflow line to an underground tank. Interceptors not rated by the manufacturer shall have a depth of not less than 600 mm below the invert of the discharge drain. The outlet opening shall have not less than 457 mm water seal and shall have a minimum capacity as follows: where not more than three (3) motor vehicles are serviced and / or stored, interceptors shall have a minimum capacity of 0.2 cubic meter, and 0.03 cubic meter of capacity shall be added for each vehicle up to ten (10) vehicles. Above ten (10) vehicles, the Sanitary Engineer shall determine the size of the interceptor required. Where vehicles are serviced only and not stored, interceptor capacity shall be based on a net capacity of 0.03 cubic meter for each 9.3 sq.m of surface to be drained into the interceptor, with a minimum of 0.2 cubic meter. Exception: 8.3.7 A combination oil and sand interceptor may be installed when the design is approved in writing by the Sanitary Engineer. Each plumbing fixture trap, except as otherwise provided in these Design Guidelines, shall be protected against siphonage and back-pressure, and air circulation shall be assured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this Section and as otherwise required by these Design Guidelines. Vents Not Required: 8-45 Where permitted by the Sanitary Engineer, vent piping may be omitted on an interceptor when such interceptor acts as a primary settling tank and discharges through a horizontal indirect waste pipe into a secondary interceptor. The second interceptor shall be properly trapped and vented. Traps serving sinks which are part of the equipment of soda fountains, and counters, need not be vented when the location and construction of such soda fountains, and counters is such as to make it impossible to do so. When such conditions exist, said sinks shall discharge by means of No more than one-third (1 / 3) of the total permitted length, per Table 8-5, of any minimum sized vent shall be installed in a horizontal position. When a minimum sized vent is increased one (1) pipe size for its entire length, the maximum length limitation does not apply. Vent Pipe Grades and Connections: Vents Vents Required: When connected to a common building sewer, the drainage piping of two (2) or more buildings located on the same lot and under one (1) ownership may be vented by means of piping sized in accordance with Table 8-5, provided the aggregate cross-sectional area of all vents is not less than that of the largest required common building sewer. Exception: Combination Oil and Sand Interceptor: The size of vent piping shall be determined from its length and the total number of fixture units connected thereto, as set forth in Table 8-5. The diameter of an individual vent shall not be less than 32 mm nor less than fifty percent (50%) the diameter of the drain to which it is connected. In addition, the drainage piping of each building and each connection to a Public sewer or a Private sewage disposal system shall be vented by means of one or more vent pipes, the aggregate cross-sectional area of which shall not be less than that of the largest required building sewer, as determined from Table 8–5. All vent and branch vent pipes shall be free from drops or sags and each such vent shall be level or shall be so graded and connected as to drip back by gravity to the drainage pipe it serves. Where vents connect to a horizontal drainage pipe, each vent pipe shall have its invert taken off above the drainage center line of such pipe downstream of the trap being served. Unless prohibited by structural conditions, each vent shall rise vertically to a point not less than 150 mm above the flood level rim of the fixture served before offsetting horizontally, and whenever two or more vent pipes converge, each such vent pipe shall rise to a point at least 150 mm in height above the flood level rim of the plumbing fixture it serves before being connected to any other vent. Vents less than 150 mm above the flood level rim of the fixture shall be installed with approved drainage fittings, material and grade to the drain. All vent pipes shall extend undiminished in size above the roof, or shall be reconnected with a soil or waste vent of proper size. The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap. 8-46 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Two (2) fixtures may be served by a common vertical pipe when each such fixture wastes separately into an approved double fitting having inlet openings at the same level. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Frost or Snow Closure: Vent Termination: Each vent pipe or stack shall extend through its flashing and shall terminate vertically not less than 150 mm above the roof nor less than 300 mm from any vertical surface. Each vent shall terminate not less than 3.048 m from, or at least 914 mm above any openable window, door, opening, air intake, or vent shaft, nor less than 914 mm in every direction from any lot line; alley and street excepted. Vent pipes shall be extended separately or combined, of full required size, not less than 150 mm above the roof or fire wall. Flag poling of vents shall be prohibited except where the roof is used for purposes other than weather protection. All vents within 3.048 m of any part of the roof that is used for such other purposes shall extend not less than 2.134 m above such roof and shall be securely stayed. Vent pipes for outdoor installations shall extend at least 3.048 m above the surrounding ground and shall be securely supported. Joints at the roof around vent pipes shall be made water tight by the use of approved flashings or flashing material. Lead: Vent Stacks and Relief Vents: For safe pans: Not less 19.5 kg / m2 or 1.6 mm thick. For flashings or vent terminals: Not less than 14.7 kg / m2 or 1.2 mm thick. Lead bends and lead traps shall not be less than 3.2 mm wall thickness. 8-47 Each drainage stack which extends ten (10) or more stories above the building drain or other horizontal drain, shall be served by a parallel vent stack which shall extend undiminished in size from its upper terminal and connect to the drainage stack at or immediately below the lowest fixture drain. Each such vent stack shall also be connected to the drainage stack at each fifth floor, counting down from the uppermost fixture drain by means of a yoke vent, the size of which shall be not less in diameter than either the drainage or the vent stack, whichever is smaller. The yoke vent intersection with the vent stack shall be placed not less than 1.067m above the floor level, and the yoke vent intersection with the drainage stack shall be by means of a wye branch fitting placed below the fixture branch serving that floor. Vertical Wet Venting: See Table14-1 US UPC2000 Edition. Sheet lead shall be not less than the following: Where frost or snow closure is likely to occur in locations having minimum design temperature below (-17.8°C), vent terminals shall be a minimum of 50 mm in diameter but in no event smaller than the required vent pipe. The change in diameter shall be made inside the building at least 300 mm below the roof in an insulated space and terminate not less than 254 mm above the roof, or as required by the Sanitary Engineer. Wet venting is limited to vertical drainage piping receiving the discharge from the trap arm of one (1) and two (2) fixture unit fixtures that also serves as a vent for not to exceed four (4) fixtures. All wet vented fixtures shall be within the same story; provided, further, that fixtures with a continuous vent discharging into a wet vent shall be within the same story as the wet vented fixtures. No wet vent shall exceed 1.829 m in developed length. The vertical piping between any two (2) consecutive inlet levels shall be considered a wet vented section. Each wet vented section shall be a minimum of one (1) pipe size larger than the required minimum waste pipe size of the upper fixture or shall be one (1) pipe size larger than the required minimum pipe size for the sum of the fixture units served by such wet vented section, whichever is larger, but in no case less than 50 mm. Common vent sizing shall be the sum of the fixture units served but in no case smaller than the minimum vent pipe size required for any fixture served, or by Section 8.3.7 “Size of Vents”. 8-48 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Special Venting for Island Fixtures: Exception: Traps for island sinks and similar equipment shall be roughed in above the floor and may be vented by extending the vent as high as possible, but not less than the drainboard height and then returning it downward and connecting it to the horizontal sink drain immediately downstream from the vertical fixture drain. The return vent shall be connected to the horizontal drain through a wye-branch fitting and shall, in addition, be provided with a foot vent taken off the vertical fixture vent by means of a wye-branch immediately below the floor and extending to the nearest partition and then through the roof to the open air or may be connected to other vents at a point not less than 150 mm above the flood level rim of the fixtures served. Drainage fittings shall be used on all parts of the vent below the floor level and a minimum slope of 20.9 mm/m back to the drain shall be maintained. The return bend used under the drainboard shall be a one (1) piece fitting or an assembly of a forty-five (45) degree (0.79 rad), a ninety (90) degree (1.6 rad) and a forty-five (45) degree (0.79 rad) elbow in the order named. Pipe sizing shall be as elsewhere required in these Design Guidelines. The island sink drain, upstream of the returned vent, shall serve no other fixtures. An accessible cleanout shall be installed in the vertical portion of the foot vent. 8.3.8 8-49 Combination waste and vent systems shall be permitted only where structural conditions preclude the installation of conventional systems as otherwise prescribed by this Design Guidelines. Plans and specifications for each combination waste and vent system shall first be approved by the Sanitary Engineer before any portion of any such system is installed. Each combination waste and vent system, shall be provided with a vent or vents adequate to assure free circulation of air. Any branch more than 4.572m) in length shall be separately vented in an approved manner. The minimum area of any vent installed in a combination waste and vent system shall be at least fifty percent 50% the inside cross-sectional area of the drain pipe served. The vent connection shall be downstream of the uppermost fixture. Each waste pipe and each trap in any such system shall be at least two (2) pipe sizes larger than the sizes required by Section 8.3.4 of this Design Guidelines, and at least two (2) pipe sizes larger than any fixture tailpiece or connection. Unless specifically required or permitted by the Sanitary Engineer, no vertical waste pipe shall be used in any such system, except the tailpiece or connection between the outlet of a plumbing fixture and the trap therefore. Such tailpieces or connections shall be as short as possible, and in no case shall exceed 600 mm. Cleanouts may not be required on any wet vented branch serving a single trap when the fixture tailpiece or connection is not less than 50 mm in diameter and provides ready access for cleaning through the trap. An accessible cleanout shall be installed in each vent for the combination waste and vent system. No water closet or urinal shall be installed on any such system. Other one (1), two (2), or three (3) unit fixtures remotely located from the sanitary system and adjacent to a combination waste and vent system may be connected to such system in the conventional manner by means of waste and vent pipes of regular sizes, providing that the two (2) pipe size is based on the total fixture unit load connected to the system. Subsoil Drains Combination Waste and Vent Systems: Branch lines may have forty-five (45) degree (0.79 rad) vertical offsets Subsoil drains shall be provided around the perimeter of buildings having basements, cellars, or crawl spaces or floors below grade. Such subsoil drains may be positioned inside or outside of the footing, shall be of perforated, or open-jointed approved drain tile or pipe not less than 80 mm in diameter, and shall be laid in gravel, slag, crushed rock, approved 19.1 mm crushed recycled glass aggregate, or other approved porous material with a minimum of 100 mm surrounding the pipe on all sides. Filter media shall be provided for exterior subsoil piping. Subsoil drains shall be piped to a storm drain, to an approved water course, to the front street curb or gutter, or to an alley; or the discharge from the subsoil drains shall be conveyed to the alley by a concrete gutter. Where a continuously flowing spring or groundwater is encountered, subsoil drains shall be piped to a storm drain or an approved water course. Where it is not possible to convey the drainage by gravity, subsoil drains shall discharge to an accessible sump provided with an approved automatic electric pump. The sump shall be at least 375 mm in diameter, 457 mm in depth, and provided with a fitted cover. The sump pump shall have an adequate capacity to discharge all water coming into the sump as it accumulates to the required discharge point, and the capacity of the pump shall not be less than 1.0 L/s. The discharge piping from the sump pump shall be a minimum of 40 mm in diameter and have a union or other approved quick disconnect assembly to make the pump accessible for servicing. For separate dwellings not serving continuously flowing springs or groundwater, the sump discharge pipe may discharge onto a concrete splash block with a minimum length of 600 mm. This pipe shall be within 100 mm of the splash block and positioned to direct the flow parallel to the recessed line of the splash block. 8-50 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Urinals: Urinals shall have an average water consumption of not more than 1.0 gallon (3.8 liters) of water per flush. Exception: If approved by the Sanitary Engineer, blowout urinals may be installed for Public use in stadiums, race courses, fairgrounds, and other structures used for outdoor assembly and for similar uses. Non-Metered Faucets: Lavatory faucets shall be designed and manufactured so that they will not exceed a water flow rate of 8.4 liters per minute. Metered Faucets: Self-closing or self-closing metering faucets shall be installed on lavatories intended to serve the transient Public, such as those in, but not limited to, service stations, train stations, airports, restaurants and convention halls. Metered faucets shall deliver not more than 1.0 liter of water per use. Kitchen Faucets: Faucets for kitchen sinks shall be designed and manufactured so that they will not exceed a water flow rate of 8.4 liters per minute. Shower Heads: Shower heads shall be designed and manufactured so that they will not exceed a water supply flow rate of 9.5 liters per minute. Exception: Emergency safety showers. Installation: Water-conserving fixtures shall be installed in strict accordance with the manufacturers’ instructions to maintain their rated performance. Materials – Alternates: Special use fixtures may be made of soapstone, chemical stoneware, or may be lined with lead, copper base alloy, nickel-copper alloy, corrosion-resisting steel, or other materials especially suited for the use for which the fixture is intended. Zinc Alloy Components: Zinc alloy components shall meet the applicable nationally recognized standards and shall be used in accordance with their listing. Overflows: When any fixture is provided with an overflow, the waste shall be so arranged that the standing water in the fixture cannot rise in the overflow when the stopper is closed or remain in the overflow when the fixture is empty. The 8-52 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures overflow pipe from a fixture shall be connected on the house or inlet side of the fixture trap, except that overflow on flush tanks may discharge into the water closets or urinals served by them, but it shall be unlawful to connect such overflows with any other part of the drainage system. Strainers and Connections: Strainers. All plumbing fixtures, other than water closets and urinals, shall be equipped with approved strainers having an approved waterway area. Strainers serving shower drains shall have a waterway equivalent to the area of the tailpiece. Connections: Fixtures having concealed slip joint connections shall be provided with an access panel or utility space at least 305 mm in its least dimension and so arranged without obstructions as to make such connections accessible for inspection and repair. Continuous wastes and fixture tailpieces shall be constructed from the materials specified in Section 8.3.13 ”Materials For Drainage” for drainage piping, provided, however, that such connections where exposed or accessible may be of seamless drawn brass not less than No. 20 B&S Gauge 0.8 mm. Each such tailpiece, continuous waste, or waste and overflow shall not be less than 40 mm O.D. for sinks, dishwashers, laundry tubs, bathtubs, urinals and similar fixtures, and not less than 32 mm) for lavatories, drinking fountains, and similar small fixtures. Approved wye or other directional type branch fittings shall be installed in all continuous wastes connecting or receiving the discharge from food waste disposal units, dishwashers, clothes washers, or other force discharge fixtures or appliances. No dishwasher drain shall be connected to a sink tailpiece, continuous waste or trap on the discharge side of a food waste disposal unit. Prohibited Fixtures: Water closets having an invisible seal or an unventilated space or having walls which are not thoroughly washed at each discharge shall be prohibited. Any water closet which might permit siphonage of the contents of the bowl back into the tank shall be prohibited. Drinking fountains shall not be installed in Public toilet rooms. Prohibited Urinals: Floor-type and wall -hung-type trough urinals shall be prohibited. Urinals which have an invisible seal or which have an unventilated space or wall which is not thoroughly washed at each discharge shall be prohibited. Fixed wooden, concrete, cement, or tile wash trays or sinks for domestic use shall not be installed in any building designed or used for human habitation. No sheet metal lined wooden bathtub shall be installed or reconnected. No dry or chemical closet (toilet) shall be installed in any building used for human habitation, unless first approved by the Sanitary Engineer. 8-53 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures corrosion-resistant screws or bolts. The closet flange shall be secured to a firm base. Where floor-mounted, back-outlet water closets are used, the soil pipe shall not be less than 80 mm in diameter. Offset, eccentric, or reducing floor flanges shall not be used. Setting: Fixtures shall be set level and in proper alignment with reference to adjacent walls. No water closet or bidet shall be set closer than 381 mm from its center to any side wall or obstruction nor closer than 762 mm center to center to any similar fixture. The clear space in front of any water closet or bidet shall not be less than 600 mm. No urinal shall be set closer than 305 mm from its center to any side wall or partition nor closer than. Installations for Persons with Disabilities (PWDs): Where facilities for the PWDs are required in applicable building regulations, the facilities shall be installed in accordance with those regulations. Supply Fittings: The supply lines or fittings for every plumbing fixture shall be so installed as to prevent backflow as required in Section 8.3.17. Water Closets: Water closet bowls for Public use shall be of the elongated type. In nurseries, schools, and other similar places where plumbing fixtures are provided for the use of children under six (6) years of age, water closets shall be of a size and height suitable for children’s use. All water closets shall be equipped with seats as required below. Water Closet Seats: Water closet seats shall be of smooth non-absorbent material. All water closet seats, except those within dwelling units, shall be of the open front type. Water closet seats shall be properly sized for the water closet bowl type. Seats for use in Public buildings shall conform to the standard listed in Table 14-1 of Standards for Materials, Equipment, Joints and Connections US UPC 2000 Edition. Urinals: 8.3.10 Every water supply to a urinal shall be protected by an approved type vacuum breaker or other approved backflow prevention device as described in Section 8.3.17.3. Flushing Devices for Water Closet and Urinals Flushing Devices Required: Each water closet, urinal, clinic sink, or other plumbing fixture which depends on trap siphonage to discharge its waste 8-55 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures contents shall be provided with a flushometer valve, flushometer tank or flush tank designed and installed so as to supply water in sufficient quantity and rate of flow to flush the contents of the fixture to which it is connected, to cleanse the fixture, and to refill the fixture trap, without excessive water use. Flushing devices shall meet anti-siphon requirements required in Section 8.3.17. Automatic Flushing Tanks: Tanks flushing more than one (1) urinal shall be automatic in operation and of sufficient capacity to provide the necessary volume to flush and properly cleanse all urinals simultaneously. Automatically controlled flushometer valves may be substituted for flush tanks. Flushometer Valves: No manually controlled flushometer valve shall be used to flush more than one (1) urinal and each such urinal flushometer valve shall be an approved, self-closing type discharging a predetermined quantity of water. Flushometers shall be installed so that they will be accessible for repair. Flushometer valves shall not be used where the water pressure is insufficient to properly operate them. When the valve is operated, it shall complete the cycle of operation automatically, opening fully and closing positively under the line water pressure. Each flushometer shall be provided with a means for regulating the flow through it. Water Supply for Flush Tanks: An adequate quantity of water shall be provided to flush and clean the fixture served. The water supply for flushing tanks and flushometer tanks equipped for manual flushing shall be controlled by a float valve or other automatic device designed to refill the tank after each discharge and to completely shut off the water flow to the tank when the tank is filled to operational capacity. Provision shall be made to automatically supply water to the fixture so as to refill the trap seal after each flushing. The water supply to flush tanks equipped for automatic flushing shall be controlled by a suitable timing device. Flush Valves in Flush Tanks: Flush valve seats in tanks for flushing water closets shall be at least 25 mm above the flood level rim of the bowl connected thereto, except in approved water closet and flush tank combinations designed so that when the tank is flushed and the fixture is clogged or partially clogged, the flush valve closes tightly so that water does not spill continuously over the rim of the bowl or backflow from the bowl to the tank. Overflows in Flush Tanks: Flush tanks shall be provided with overflows discharging into the water closet or urinal connected thereto and shall be of sufficient size to prevent tank flooding at the maximum rate at which the tank is supplied with water under normal operating conditions. Floor Drains and Shower Stalls: Floor drains shall be considered plumbing fixtures and each such drain shall be provided with an approved type strainer having a waterway equivalent to the area of the tailpiece. Floor drains, floor receptors, and shower drains shall be of an approved type, suitably flanged to provide a water tight joint in the floor. 8-56 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Location of Floor Drains: Floor drains shall be installed in the following areas: 8.3.11 Toilet rooms containing two (2) or more water closets or a combination of one (1) water closet and one (1) urinal, except in a dwelling unit. The floor shall slope toward the floor drains. Commercial kitchens Laundry rooms in commercial buildings and common laundry facilities in multi-family dwelling buildings. Food Storage Areas: If drains are provided in storerooms, walk-in freezers, walk-in coolers, refrigerated equipment, or other locations where food is stored, such drains shall have indirect waste piping. Separate waste pipes shall be run from each food storage area, each with an indirect connection to the building sanitary drainage system. Traps shall be provided if required under Section 8.3.5.5 and shall be vented. Indirect drains may be located in freezers or other spaces where freezing temperatures are maintained, provided that traps, when provided, are located where the seal will not freeze. Otherwise, the floor of the freezer shall be sloped to a floor drain located outside of the storage compartment. Floor Slope: Floors shall be sloped to floor drains where drainage occurs on a regular or frequent basis, or as otherwise required by the Sanitary Engineer. Shower receptors are plumbing fixtures and shall conform to the general requirements therefore contained in Section 8.3.8.1. Each such shower receptor shall be constructed of vitrified china or earthenware, ceramic tile, porcelain enameled metal or of such other material as may be acceptable to the Sanitary Engineer. No shower receptor shall be installed unless it conforms to acceptable standards as referenced in Table 14-1 of US UPC 2000 Edition or until a specification or a prototype or both of such receptor has first been submitted to and approval obtained from the Sanitary Engineer. Each shower receptor shall be an approved type and be so constructed as to have a finished dam, curb, or threshold which is at least 25 mm lower than the sides and back of such receptor. In no case shall any dam or threshold be less than 50 mm or more than 229 mm in depth when measured from the top of the dam or threshold to the top of the drain. Each such receptor shall be provided with an integral nailing flange to be located where the receptor meets the vertical surface of the finished interior of the shower compartment. The flange shall be water tight and extend vertically a minimum of 25 mm above the top of the sides of the receptor. The finished floor of the receptor shall slope uniformly from the sides toward the drain not less than 20.9 mm/m, nor more than 41.8 mm/m. Thresholds shall be of sufficient width to accommodate a minimum 559 mm door. Shower doors shall open so as to maintain a minimum 559 mm unobstructed opening for egress. 8-57 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Exception: Showers which are designed to comply with the accessibility standards listed in Table 14-1 of Standards for Materials, Equipment, Joints and Connections US UPC 2000 Edition. All shower compartments, regardless of shape, shall have a minimum finished interior of 0.66 m2 and shall also be capable of encompassing a 750 mm circle. The minimum required area and dimensions shall be measured at a height equal to the top of the threshold and at a point tangent to its centerline. The minimum area and dimensions shall be maintained to a point 1.778 m above the shower drain outlet with no protrusions other than the fixture valve or valves, shower head, soap dishes, shelves and safety grab bars or rails. Folddown seats in accessible shower stalls shall be permitted to protrude into the 750 mm circle. Exception: Showers which are designed to comply with the accessibility standards listed in Table 14-1 of Standards for Materials, Equipment, Joints and Connections US UPC 2000 Edition. When the construction of on-site built-up shower receptors is permitted by the Sanitary Engineer, one of the following means shall be employed: Shower receptors built directly on the ground: Shower receptors built directly on the ground shall be water tight and shall be constructed from approved type dense, non-absorbent and noncorrosive materials. Each such receptor shall be adequately reinforced, shall be provided with an approved flanged floor drain designed to make a water tight joint in the floor, and shall have smooth, impervious, and durable surfaces. Shower receptors built above ground: When shower receptors are built above ground the sub-floor and rough side of walls to a height of not less than 76 mm) above the top of the finished dam or threshold shall be first lined with sheet plastic*, lead* or copper* or shall be lined with other durable and water tight materials. All lining materials shall be pitched 20.9 mm/m to weep holes in the subdrain of a smooth and solidly formed sub-base. All such lining materials shall extend upward on the rough jambs of the shower opening to a point no less than 76 mm above the top of the finished dam or threshold and shall extend outward over the top of the rough threshold and be turned over and fastened on the outside face of both the rough threshold and the jambs. Non-metallic shower sub-pans or linings may be built-up on the job site of not less than three (3) layers of standard 6.8 kg asphalt impregnated roofing felt. The bottom layer shall be fitted to the formed sub-base and each succeeding layer thoroughly hot mopped to that below. All corners shall be carefully fitted and shall be made strong and water tight by folding or lapping, and each corner shall be reinforced with suitable webbing hot-mopped in place. All folds, laps, and reinforcing webbing shall extend at least 100 mm in all directions from the corner and all webbing shall be of approved type and mesh, producing a tensile strength of not less than 344.5 kPa in either direction. Non-metallic shower sub-pans or linings may also consist of multi-layers of other approved 8-58 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures equivalent materials suitably reinforced and carefully fitted in place on the job site as elsewhere required in this section. Linings shall be properly recessed and fastened to approved backing so as not to occupy the space required for the wall covering and shall not be nailed or perforated at any point which may be less than 25 mm above the finished dam or threshold. An approved type sub-drain shall be installed with every shower sub-pan or lining. Each such sub-drain shall be of the type that sets flush with the sub-base and shall be equipped with a clamping ring or other device to make a tight connection between the lining and the drain. The sub-drain shall have weep holes into the waste line. The weep holes located in the subdrain clamping ring shall be protected from clogging. *Lead and copper sub-pans or linings shall be insulated from all conducting substances other than their connecting drain by 6.8 kg asphalt felt or its equivalent and no lead pan or liner shall be constructed of material weighing less than 19.5 kg/m2. Copper pans or liners shall be at least No. 24 B & S Gauge 0.5 mm. Joints in lead pans or liners shall be burned. Joints in copper pans or liners shall be soldered or brazed. Plastic pans shall not be coated with asphalt based materials. All shower lining materials shall conform to approved standards acceptable to the Sanitary Engineer. Tests for Shower Receptors: Shower receptors shall be tested for water tightness by filling with water to the level of the rough threshold. The test plug shall be so placed that both upper and under sides of the sub-pan shall be subjected to the test at the point where it is clamped to the drain. Floors of Public shower rooms shall have a non-skid surface and shall be drained in such a manner that waste water from one bather will not pass over areas occupied by other bathers. Gutters in Public or gang shower rooms shall have rounded corners for easy cleaning and shall be sloped not less than 2% toward drains. Drains in gutters shall be spaced not more than 2438 mm from side walls nor more than 4.897 mm apart. Location of Valves and Heads: Control valves and shower heads shall be located on the sidewall of shower compartments or be otherwise arranged so that the showerhead does not discharge directly at the entrance to the compartment and the bather can adjust the valves prior to stepping into the shower spray. 8.3.12 Water Supply Riser. Every water supply riser from the shower valve to the shower head outlet, whether exposed or not, shall be securely attached to the structure. Minimum Number of Required Fixtures Fixture Count. Plumbing fixtures shall be provided for the type of building occupancy and in the minimum number shown in Table 8-2. 8-59 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Access to Fixtures: In multi-story buildings, accessibility to the required fixtures shall not exceed one (1) vertical story. Fixtures accessible only to Private offices shall not be counted to determine compliance with this section. Separate Facilities: Separate toilet facilities shall be provided for each sex. Exceptions: Residential installations. In occupancies serving ten (10) or fewer people, one (1) toilet facility, designed for use by no more than one (1) person at a time, shall be permitted for use by both sexes. In business and mercantile occupancies with a total floor area of 139.5 m2 or less, one (1) toilet facility, designed for use by no more than one (1) person at a time, shall satisfy the requirements for serving customers and employees of both sexes. Fixture Requirements for Special Occupancies: Additional fixtures may be required when unusual environmental conditions or special activities are encountered. In food preparation areas, fixture requirements may be dictated by health Codes. Types of occupancy not shown in Table 8-2 shall be considered individually by the Sanitary Engineer Facilities in Mercantile and Business Occupancies Serving Customers Requirements for customers and employees shall be permitted to be met with a single set of restrooms accessible to both groups. The required number of fixtures shall be the greater of the required number for employees or the required number for customers. Fixtures for customer use shall be permitted to be met by providing a centrally located facility accessible to several stores. The maximum distance from entry to any store to this facility shall not exceed 152.4 m. In stores with a floor area a 13.9 m2 or less, the requirement to provide facilities for employees shall be permitted to be met by providing a centrally located facility accessible to several stores. The maximum distance from entry to any store to this facility shall not 91.4 m. Food Service Establishments: Food service establishments with an occupant load of one hundred (100) or more shall be provided with separate facilities for employees and customers. Customer and employee facilities may be combined for occupant loads less than one hundred (100). Toilet Facilities for Workers: Suitable toilet facilities shall be provided and maintained in a sanitary condition for the use of workers during construction. 8-60 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 8.3.13 Fixtures and Fixtures Fittings for Persons with Disabilities Plumbing fixtures and fixture fittings for persons with disabilities shall conform to the appropriate standards referenced in Table 14-1 of US UPC 2000 Edition. Whirlpool Bathtubs: Unless otherwise listed, all whirlpool bathtubs shall comply with the following requirements: A removable panel of sufficient dimension shall be provided to access the pump. The circulation pump shall be located above the crown weir of the trap. The pump and the circulation piping shall be self-draining to minimize water retention in accordance with standards referenced in Table14-1 of US UPC 2000 Edition. Suction fittings on whirlpool bathtubs shall comply with the listed standards. Installation of Fixtures Fittings: Faucets and diverters shall be installed and adjusted so that the flow of hot water from the fittings corresponds to the left hand side of the fitting during fixture operation. Exception: In single handle mixing valves, the flow of hot water shall correspond to the markings on the fitting. Bidets: Materials. Bidets shall conform to the standards listed in Table14-1 of US UPC 2000 Edition. Backflow Protection. The water supply to the bidet shall be protected according to Section 8.3.17, which allows for an airgap or vacuum breaker. Future Fixtures: When provision is made for the future installation of fixtures, those provided for shall be considered in determining the required sizes of drain pipes. Construction for future installations shall be terminated with a plugged fitting or fittings. Where the plugged fitting is at the point where the trap of a fixture may be installed, the plumbing system for such fixture shall be complete and conform with all plumbing requirements of these Design Guidelines. Shower and Tub/Shower Combination Control Valves: Showers and tubshower combinations in all buildings shall be provided with individual control valves of the pressure balance or the thermostatic mixing valve type. Gang showers, when supplied with a single temperature controlled water supply pipe, may be controlled by a master thermostatic mixing valve in lieu of individually controlled pressure balance or thermostatic mixing valves. Handle position stops shall be provided on such valves and shall be adjusted per the manufacturer’s instructions to deliver a maximum mixed water setting of 49°C. The water heater thermostat shall not be considered a suitable control for meeting this provision. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Underground Main Sewer and Waste Lines, Main Sewer and Waste Lines shall be Bell and spigot cast iron pipe (CIP) and fittings conforming to ASTM A74. Or PVC series 1000 and fittings Or HDPE and fittings, Schedule 40 ABS DWV, Schedule 40 PVC DWV, extra strength vitrified clay pipe, or other approved materials having a smooth and uniform bore conforming to ATSM referred to in Table 141 UPC 2000 Edition, except that: No galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept at least 150 mm all be installed except for individual single family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smokedeveloped index of not more than 50, when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials No vitrified clay pipe or fittings shall be used above ground or where pressurized by a pump or ejector. They shall be kept at least 300 mm below ground. Copper tube for drainage and vent piping shall have a weight of not less than that of copper drainage tube type DWV. Drainage fittings shall be of cast iron, malleable iron, lead, brass, copper, ABS, PVC, vitrified clay, or other approved materials having a smooth interior waterway of the same diameter as the piping served and all such fittings shall be compatible with the type of pipe used. Pump Discharge Pipe shall be black iron pipe (BIP) and fittings conforming to ASTM A53. Fittings on screwed pipe shall be of the recessed drainage type. Burred ends shall be reamed to the full bore of the pipe. The threads of drainage fittings shall be tapped so as to allow 20.9 mm/m grade. Fittings used for drainage shall be of the drainage type, have a smooth interior waterway, and be constructed so as to allow 20.9 mm/m per foot grade. Lead: See Table 14-1 of US UPC 2000 Edition Sheet lead shall be not less than the following: For safe pans: not less than 19.5 kg / m2 For flashings or vent terminals: not less than 15 kg / m2 or 1.2 mm thick. Lead bends and lead traps shall not be less than 3.2 mm wall thickness. Ferrules and Bushings: Caulking ferrules shall be manufactured from bronze or copper and shall be in accordance with Table 8-13. Soldering bushings shall be of bronze or copper in accordance with Table 8-14. Materials for Sanitary Drainage: Sewer lines shall be designed with a minimum slope of one percent (1%), For high-rise buildings; Soil stack shall be cast iron pipe (CIP) and fittings conforming to ASTM A74. Or HDPE and fittings, 8-61 8-62 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-16 Hangers and Support Material Cast Type of Joints Lead Oakum Compression Gasket Horizontal Vertical (1,524 mm), (3,048 mm) where foot lengths 3,048 mm are installed1,2,3 Every other joint, unless over 1,219 mm, then support each joint1,2,3 Base and each floor not to exceed 4,572 mm Base and each floor maximum of 4,572 mm Cast –Iron Hubless Shielding Coupling Every other joint, unless over 1,219 mm, then support each joint1,2,3,4 Base and each floor maximum of 4,572 mm Copper Tube and Pipe Soldered or Brazed 40mm and smaller, 1,829 mm, 50 mm and larger,3,048 mm Each floor, a maximum of 3,048 mm,5 Steel and brass Pipe for Water or DWV Threaded of Welded and smaller, (3,048 mm), 25 mm and larger, (3,658 mm) Every other Floor, a maximum of 7,620 mm5 Steel, Brass and Tinned Copper Pipe for Gas Threaded of Welded 15mm (1,829 mm), 20 mm and (2 5 mm), (2,436 mm), (32 mm) and larger, (3,048 mm) (12 mm) (1,829 mm) (20mm) and 25 mm, 2,436 mm, (32 mm) every floor level Schedule 40 PVC and ABS DWV Solvent Cemented All sizes, (1,219 mm). Allow for expansion every (9,144 mm)3,6 Base and each floor Provide mid-story guides. Provide for expansion every (9,144 mm)3 CPVC Solvent Cemented (25 mm) and smaller, (914 mm),(32 mm) and larger, (1,219 mm) Base and each floor Provide mid-story guides6 PEX Metal Inserts and Metal Compression (813 mm) Base and each floor Provide mid-story guides PEX-ALPEX Metal Inserts and Metal Compression (12 mm),(20 mm) and (25 mm) all (2,489 mm) Base and each floor Provide mid-story guides PE-AL-PE Metal Inserts and Metal Compression (15 mm) (20 mm) and (25 mm) all sizes 98 (2,489 mm) Base and each floor Provide mid-story guides Polypropylene (PP) Fusion Weld (socket, but, saddle, electrofusion), threaded (metal threads only), or mechanical (25 mm) and smaller, 813 mm), (32 mm) and larger, 4 feet (1,219 mm) Base and each floor Provide mid-story guides Source: US-UPC 2009 (Table 3-2) Footnotes of Table 8-16: 1. Support adjacent to joint, a maximum of eighteen 457 mm 2. Brace at a maximum of 12,192 mm intervals to prevent horizontal movement 3. Support at each horizontal branch connection 4. Hangers shall not be placed on the coupling 5. Vertical water lines shall be permitted to be supported in accordance with recognized engineering principles with regard to expansion and contraction, approved by authority having jurisdiction 6. See the appropriate IAPMO Installation Standard for expansion and other special requirements 8-65 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures required by this section. Drain pipe shall be placed on filter material in an approved manner. The drain lines shall then be covered with filter material to the minimum depth required by this section and this covered with untreated building paper, straw, or similar porous material to prevent closure of voids with earth backfill. No earth backfill shall be placed over the filter material cover until after inspection and acceptance. Exception: Listed or approved plastic leaching chambers may be used in lieu of pipe and filter material. Chamber installations shall follow the rules for disposal fields, where applicable, and shall conform to manufacturer’s installation instructions. A grade board staked in the trench to the depth of filter material shall be utilized when distribution line is constructed with drain tile or a flexible pipe material which will not maintain alignment without continuous support. When seepage pits are used in combination with disposal fields, the filter material in the trenches shall terminate at least 1.524 m from the pit excavation and the line extending from such points to the seepage pit shall be approved pipe with water tight joints. Where two (2) or more drain lines are installed, an approved distribution box of sufficient size to receive lateral lines shall be installed at the head of each disposal field. The inverts of all outlets shall be level and the invert of the inlet shall be at least 25.4 mm above the outlets. Distribution boxes shall be designed to insure equal flow and shall be installed on a level concrete slab in natural or compacted soil. Distribution boxes shall be coated on the inside with a bituminous coating or other approved method acceptable to the Sanitary Engineer. All laterals from a distribution box to the disposal field shall be approved pipe with water tight joints. Multiple disposal field laterals, wherever practicable, shall be of uniform length. Connections between a septic tank and a distribution box shall be laid with approved pipe with water tight joints on natural ground or compacted fill. When the quantity of sewage exceeds the amount that can be disposed in 152.4 m of leach line, a dosing tank shall be used. Dosing tanks shall be equipped with an automatic siphon or pump which discharges the tank once every three (3) or four (4) hours. The tank shall have a capacity equal to 60 to 75% of the interior capacity of the pipe to be dosed at one time. Where the total length of pipe exceeds 304.8 m, the dosing tank shall be provided with two (2) siphons or pumps dosing alternately and each serving one half (1/2) of the leach field. 8-71 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-19 Structure Location of Sewage Disposal System 0.610 Property line adjoining Private property Water supply wells Streams Table 8-20 Minimum Horizontal Distance Clearance Required Building Sewer Buildings or structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Septic Tank Disposal Field Single Family Dwellings – Number of Bedrooms Seepage Pit or Cesspool *Capacity of Septic Tanks Multiple Dwelling Units or Apartments – One Bedroom Each Other Uses: Maximum Fixture Units Served per Table7-3 Minimum Septic Tank Capacity Liters 1.524 2.438 2.438 1 or 2 15 2838 2 1.524 1.524 2.438 3 20 3785 15.24 3 15.24 30.5m 45.7 Clear 25 4542 3 33 5678 4 45 7570 5 55 8516 6 60 9463 7 70 10,409 8 80 11,355 15.24 Trees - 3.048 Seepage pits or cesspools - 1.524 1.524 3.658 Disposal field - 1.524 1.219 4 1.524 On site domestic water service line - 1.524 1.524 1.524 3.048 - 1.524 1.524 9 90 12,301 3.048 10 100 13,248 Pressure Public water main 3. 048 5 3.048 30.5 2 units 15.24 Distribution box 15.240 6 4 5 or 6 3.048 3.048 Source: Table K-1 UPC 2000 Edition Source: Table K-2 UPC 2000 Edition Footnotes of Table 8-19: When disposal fields and / or seepage pits are installed in sloping ground, the minimum horizontal distance between any part of the leaching system and ground surface shall be 4.572 m. Footnotes of Table 8-20: 1. Extra bedroom, 568 liters each. 2. Extra dwelling units over 10, add 946 liters each. 1. Including porches and steps, whether covered or uncovered, breezeways, roofed porte- 3. Extra fixture units over 100, add 95 liters per fixture unit. cocheres, roofed patios, carports, covered walks, covered driveways and similar structures or appurtenances. 2. “No building sewer or other drainage piping or part thereof, constructed of materials other than *Septic tank sizes in this table include sludge storage capacity and the connection of domestic food waste disposal units without further volume increase. those approved for use under or within a building, shall be installed under or within 0.610 m of any building or structure, or less than 0.305 m below the surface of the ground.” 3. All drainage piping shall clear domestic water supply wells by at least 15.24 m. This distance may be reduced to not less than 7.62 m when the drainage piping is constructed of materials approved for use within a building. 4. Plus 0.61 m for each additional 0.305 m of depth in excess of 0.305 m below the bottom of the drain line. (See also Section 8.3.15.7). 5. For parallel construction: For crossings, approval by the Health Department shall be required. 6. These minimum clear horizontal distances shall also apply between disposal field, seepage pits, and the ocean mean higher high tide line. 8-77 8-78 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-21 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Estimated Waste / Sewage Flow Rates Type of Occupancy Recommended Design Criteria. Sewage disposal systems sized using the estimated waste / sewage flow rates should be calculated as follows: Liters Per Day Airports 56.8 per employee 18.9 per passenger Bowling alleys (snack bar only) 283.9 per land Camps Campground with central comfort station 132.5 per person Campground with flush toilets, no showers 94.6 per person Day camps (no meals served) 56.8 per person Summer and seasonal 189.3 per person Churches (Sanctuary) 18.9 per seat with kitchen waste 26.5 per seat Dance halls 18.9 per person Waste/sewage flow, over 5677.5 L / day Flow x 0.75 + 1125 = septic tank size Secondary system shall be sized for total flow per 24 hours. Table 8-22 Design Criteria of Five Typical Soils Required leaching area / L (sq.m / L) Maximum absorption capacity in L / sq. m of leaching area for a 24 hrs period Coarse sand or gravel 0.005 203.7 Type of Soil Factories Fine sand 0.006 162.9 No showers 94.6 per employee Sandy loam or sandy clay 0.010 101.8 With showers 132.5 per employee Clay with considerable sand or gravel 0.022 44.8 Cafeteria, add 18.9 per employee Clay with small amount of sand or gravel 0.030 32.6 Hospitals 946.3 per bed Kitchen waste only 94.6 per bed Laundry waste only 151.4 per bed Hotels (no kitchen waste) Source: Table K-4 UPC 2000 Edition Table 8-23 227.1 per bed (2 person) Septic Tank Capacity Limits Institutions (Resident) 283.9 per person Required Square meter of Septic Tank Capacity (m2 / L) Nursing home 473.1 per person 0.005–0.006 28,387.5 Rest home 473.1 per person 0.010 18,925.0 Laundries, self-service ,in. 10 hrs / day 189.3 per wash cycle 0.022 13,247.5 Restaurants – cafeterias 75.7 per employee 0.030 11,355.0 Toilet 26.5 per customer Source: Table K-5 UPC 2000 Edition kitchen waste 3.8 per meal add for cocktail lounge 7.6 per customer 7.6 per meal Schools – Staff and office 75.7 per person Elementary students 56.8 per person Intermediate and high 75.7 per student with gym and showers, add 18.9 per student with cafeteria, add 11.4 per student Boarding, total waste 378.5 per person Service station, toilets 3785 for first bay Stores 75.7 per employee Public restrooms, add 1 per 4.1m2 of floor space Swimming pools, Public 37.9 per person Theaters, auditoriums 18.9 per seat Drive-in 37.9 per space Source: Table K-3 UPC 2000 Edition Maximum Septic Tank Size Allowable (Liters) 22.7 per meal add for garbage disposal kitchen waste – disposable service 8-79 Waste/sewage flow, up to 5677.5 L / day Flow x 1.5 = septic tank size 8.3.16 Storm Drainage System Similar in physical design to Sewerage system but differs in discharge content which is storm water, the system discharges areas but not limited to: service areas exposed to atmosphere precipitations or other influenced areas wherein storm water is the main matter to discharge, such All roofs, paved areas, yards, courts, and courtyards, roof, decks, balconies, parking, site areas shall be drained into a separate storm sewer system, or into a combined sewer system where a separate storm sewer system is not available, or to some other place of disposal satisfactory to the Sanitary Engineer. The system is connected by gravity flow into the Public storm drainage, physically constrained gravity discharges requires ejector pumps for proper discharging. In Parking areas Oil Interceptors must be added into the system sub-collector lines at points appropriate for maintenance. In the case of one- and two-family dwellings, storm water may be discharged on flat areas such as streets or lawns so long as the storm water shall flow away from the building and away from adjoining property, and shall not create a nuisance. 8-80 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures diameter and have a union or other approved quick disconnect assembly to make the pump accessible for servicing. For separate dwellings not serving continuously flowing springs or groundwater, the sump discharge pipe may discharge onto a concrete splash block with a minimum length of 600 mm. This pipe shall be within 100 mm of the splash block and positioned to direct the flow parallel to the recessed line of the splash block. Subsoil drains subject to backflow when discharging into a storm drain shall be provided with a backwater valve in the drain line so located as to be accessible for inspection and maintenance. Nothing in Section 8.3.17.2 shall prevent drains that serve either subsoil drains or areaways of a detached building from discharging to a properly graded open area, provided that: They do not serve continuously flowing springs or groundwater; The point of discharge is at least 3.048 m from any property line; and It is impracticable to discharge such drains to a storm drain, to an approved water course, to the front street curb or gutter, or to an alley. Drain Systems: Building Subdrains. Building subdrains located below the Public sewer level shall discharge into a sump or receiving tank, the contents of which shall be automatically lifted and discharged into the drainage system as required for building sumps. Areaway Drains: All open subsurface space adjacent to a building, serving as an entrance to the basement or cellar of a building, shall be provided with a drain or drains. Such areaway drains shall be 50 mm minimum diameter for areaways not exceeding 9.3 m2 in area, and shall be discharged in the manner provided for subsoil drains not serving continuously flowing springs or ground water (see Section 8.3.16.1) Areaways in excess of 9.3 m2 shall not drain into subsoil. Areaway drains for areaways exceeding 9.3 m2 shall be sized according to Table 8-23. Window Areaway Drains: Window areaways not exceeding 0.9 m2 in area may discharge to the subsoil drains through a 50 mm pipe. However, window areaways exceeding 0.9 m2 in area shall be handled in the manner provided for entrance areaways. Filling Stations and Motor Vehicle Washing Establishments: Public filling stations and motor vehicle washing establishments shall have the paved area sloped toward sumps or gratings within the property lines. Curbs not less than 152 mm high shall be placed where required to direct water to gratings or sumps. Paved Areas: Where the occupant creates surface water drainage, the sumps, gratings or floor drains shall be piped to a storm drain or an approved water course. 8-82 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Roof Drainage: Primary Roof Drainage. Roof areas of a building shall be drained by roof drains or gutters. The location and sizing of drains and gutters shall be coordinated with the structural design and pitch of the roof. Unless otherwise required by the Sanitary Engineer/ Master Plumber, roof drains, gutters, vertical conductors or leaders, and horizontal storm drains for primary drainage shall be sized based on a storm of sixty (60) minutes duration and 100 year return period. Secondary Roof Drainage: Where parapet walls or other construction extend above the roof and create areas where storm water would become trapped if the primary roof drainage system failed to provide sufficient drainage, an independent secondary roof drainage system consisting of scuppers, standpipes, or roof drains shall be provided. Secondary roof drainage systems shall be sized in accordance with Section 8.3.16.1 “Roof Drainage” of these Design Guidelines. Overflow drains shall be the same size as the roof drains with the inlet flow line 50 mm above the low point of the roof and shall be installed independent from the roof drains. Where secondary roof drainage is provided by means of roof drains or standpipes, the secondary system shall be separate from the primary system and shall discharge independently at grade or other approved point of discharge. Where secondary roof drainage is provided, the overflow level(s) into the secondary system shall be determined by the structural design of the roof, including roof deflection, at a level not less than 50 mm above the level of the primary drain. An allowance shall be made to account for the required overflow head of water above the secondary inlets. The elevation of the secondary inlet plus the required overflow head shall not exceed the maximum allowable water level on the roof. Scuppers shall be sized as rectangular weirs, using hydraulic principles to determine the required length and resulting overflow head. Secondary roof drains and standpipes shall be sized according to Table 8-24. Where standpipes are used, the head allowance required under Section 8.3.16.1 “Secondary Roof Drainage” shall be not less than 38 mm. Equivalent Systems: When approved by the Sanitary Engineer, the requirements of Section 8.3.16.1 “Roof Drainage” shall not preclude the installation of an engineered roof drainage system that has sufficient capacity to prevent water from ponding on the roof in excess of that allowed in the roof structural design with a rainfall rate of at least twice that for a 100-year, 60-minute storm and with a blockage in any single point in the storm drainage system. Cleanouts: For building storm drains shall comply with the requirements of Section 8.3.3.5. Rain leaders and conductors connected to a building storm sewer shall have a cleanout installed at the base of the outside leader or outside conductor before it connects to the horizontal drain. 8-83 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-24 Sizing Roof Drains, Leaders, and Vertical Rainwater Piping (METRIC) Size of Drain, Leader or Pipe Mm Flow L/s 50 Maximum Allowable Horizontal Projected Roof Areas Square Meters at Various Rainfall Rates mm/hour 25 50 75 100 125 150 1.5 202 101 67 51 40 34 80 4.2 600 300 200 150 120 100 100 9.1 1286 643 429 321 257 214 125 16.5 2334 1117 778 583 467 389 150 26.8 3790 1895 1263 948 758 632 200 57.6 8175 4088 2725 2044 1635 1363 Source: Table 11-1 UPC 2000 Edition Footnotes for Table 8-24: 1. 2. 3. The sizing data for vertical conductors, leaders, and drains is based on the pipes flowing 7/24 full. For rainfall rates other than those listed, determine the allowable roof area by dividing the area given in the 25 mm / hour column by the desired rainfall rate. Vertical piping may be round, square, or rectangular. Square pipe shall be sized to enclose its equivalent round pipe. Rectangular pipe shall have at least the same cross-Sectional area as its equivalent round pipe, except that the ratio of its side dimensions shall not exceed 3 to 1. Table 8-25 Size of Pipe mm Sizing of Horizontal Rainwater Piping Flow at 10 mm/m Slope L/s Maximum Allowable Horizontal Projected Roof Areas, Square Meters at Various Rainfall Rates mm / hour 25 50 75 100 125 150 80 2.1 305 153 102 76 61 51 100 4.9 700 350 233 175 140 116 125 8.8 1241 621 414 310 248 207 150 14.0 1988 994 663 497 398 331 200 30.2 4273 2137 1424 1068 855 713 250 54.3 7692 3846 2564 1923 1540 1282 300 87.3 12,375 6187 4125 3094 2476 2062 375 156.0 22,110 11,055 7370 5528 4422 3683 8-86 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-26 Size of Pipe,mm Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Sizing of Horizontal Rainwater Piping Flow at 20 mm/m Slope L/s Table 8-28 Maximum Allowable Horizontal Projected Roof Areas Square Meters at Various Rainfall Rates mm / hour 25 50 75 100 125 150 80 3.0 431 216 144 108 86 72 100 6.9 985 492 328 246 197 164 125 12.4 1754 877 585 438 351 292 150 19.8 2806 1403 935 701 561 468 200 42.7 6057 3029 2019 1514 1211 1009 250 76.6 10,851 5425 3618 2713 2169 1807 300 123.2 17,465 8733 5816 4366 3493 2912 375 220.2 31,214 15,607 10,405 6248 5202 Table 8-27 Size of Pipe,mm Sizing Of Horizontal Rainwater Piping Flow at 40 mm/m Slope,L/s 80 4.3 125 17.5 200 60.3 100 150 9.8 Maximum Allowable Horizontal Projected Roof Areas Square Meters at Various Rainfall Rates mm / hour Maximum Rainfall mm/hour 50:8 76:2 101:6 127:0 152:4 5:2 mm/m Slope 80 31.6 21.0 15.8 12.6 10.5 100 66.9 44.6 33.4 26.8 22.3 125 116.1 77.5 58.1 46.5 38.7 150 178.4 119.1 89.2 71.4 59.5 175 256.4 170.9 128.2 102.2 85.3 200 369.7 246.7 184.9 147.7 123.1 250 668.9 445.9 334.4 267.6 223.0 80 44.6 29.7 22.3 17.8 14.9 100 94.8 63.3 47.4 37.9 31.6 125 163.5 108.9 81.8 65.4 54.5 150 252.7 168.6 126.3 100.8 84.1 175 362.3 241.5 181.2 144.9 120.8 10:4 mm/m Slope 50 75 100 125 150 611 305 204 153 122 102 200 520.2 347.5 260.1 208.1 173.7 2482 1241 250 947.6 631.7 473.8 379 315.9 42.2 31.6 25.3 21.0 1400 3976 250 108.6 15,390 375 312.0 174.6 Diameter of Gutter mm 25 28.1 300 7804 Size of Gutters 700 465 350 1988 1325 994 827 494 413 20:9 mm/m Slope 1709 1423 80 63.2 100 133.8 89.2 66.9 53.5 44.6 4125 125 232.3 155.0 116.1 92.9 77.5 150 356.7 237.8 178.4 142.7 118.9 175 512.8 341.9 256.4 204.9 170.9 200 739.5 493.3 369.7 295.4 246.7 250 133.8 891.8 668.9 534.2 445.9 4273 2847 2137 24,749 12,374 8250 6187 44,220 Source: Table 11-2 UPC 2000 Edition 22,110 5128 14,753 232 621 8547 7695 280 797 3846 3080 11,055 8853 4942 663 2564 7367 Footnotes for Table 8-25 to 27: The sizing data for horizontal piping is based on the pipes flowing full. For rainfall rates other than those listed, determine the allowable roof area by dividing the area given in the 25 mm / hour column by the desired rainfall rate. 41:7 mm/m Slope 80 89.2 59.5 44.6 35.7 29.7 100 189.5 126.3 94.8 75.8 63.2 125 328.9 219.2 164.4 131.5 109.6 150 514.7 343.3 257.3 206.2 171.9 175 724.6 483.1 362.3 289.9 241.4 200 1040.5 693.0 520.2 416.2 346.5 250 1858.0 1238.4 929.0 743.2 618.7 Source: Table 11-3 (METRIC) UPC 2000 Edition Strainers for Flat Decks: Roof drain strainers for use on sun decks, parking decks, and similar areas which are normally serviced and maintained may be of the flat surface-type. Such roof drain strainers shall be level with the deck and shall have an available inlet area of no less than two (2) times the area of the conductor or leader to which the drain is connected. Roof Drain Flashings: Connection between the roof and roof drains which pass through the roof and into the interior of the building shall be made water tight by the use of proper flashing material. 8-87 8-88 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Where lead flashing material is used, it shall be a minimum of 19.5 kg/m2. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table 8-29 Controlled Flow Maximum Roof Water Depth Where copper flashing material is used, it shall be a minimum of 3.7 kg/m 2. Size of Leaders, Conductors, and Storm Drains: Vertical Conductors and Leaders. Vertical conductors and leaders shall be sized on the basis of the maximum projected roof area and Table 8-22. Size of Horizontal Storm Drains and Sewers: The size of building storm drains or building storm sewers or any of their horizontal branches shall be based upon the maximum projected roof or paved area to be handled and Table 8-25 to Table 8-30. Size of Roof Gutters: The size of semicircular gutters shall be based on the maximum projected roof area and Table 8-25 to 8-26. Side Walls Draining onto a Roof: Where vertical walls project above a roof so as to permit storm water to drain to the roof area below the adjacent roof area may be computed from Table 8-22. For one (1) wall – add fifty (50%) percent of the wall area to the roof area figures. For two (2) adjacent walls – add thirty-five (35%) percent of the total wall areas. Two (2) walls opposite of same height – add no additional area. Two (2) walls opposite of differing heights – add fifty (50%) percent of wall area above top of lower wall. Walls on three (3) sides – add fifty (50%) percent of area of the inner wall below the top of the lowest wall, plus allowance for the area of wall above top of lowest wall, per (2) and (4) above. Walls on four (4) sides – no allowance for wall areas below top of lowest wall – add for areas above the top of the lowest wall per (1), (2), (4) and (5) above. Values for Continuous Flow: Where there is a continuous or semicontinuous discharge into the building storm drain or building storm sewer, as from a pump, ejector, air-conditioning plant, or similar device, 3.8 L / min. of such discharge shall be computed as being equivalent to 2.2 m2 of roof area, based upon a rate of rainfall of 100 mm per hour. Controlled-Flow Roof Drainage: Application. In lieu of sizing the storm drainage system in accordance with this section “Size of Leaders, Conductors, and Storm Drains”, the roof drainage may be sized on the basis of controlled flow and storage of the storm water on the roof, provided the following conditions are met: The water from a 25 year frequency storm shall not be stored on the roof for more than twenty-four (24) hours. During the storm, the water depth on the roof shall not exceed the depths specified in Table 8-29. 8-89 *Roof Rise mm Max Water Depth at Drain mm (Flat) 75 50 100 100 125 150 150 Source: Table 11-4 UPC 2000 Edition *Vertical measurement from the roof surface at the drain to the highest point of the roof surface served by the drain, ignoring any local depression immediately adjacent to the drain. No less than two (2) drains shall be installed in roof areas of 929.0 m2 or less, and no less than one (1) additional drain shall be installed for each 929.0 m 2 of roof area over 929.0 m2. Each roof drain shall have a pre-calibrated, fixed (non-adjustable), and proportional weir (notched) in a standing water collar inside the strainer. No mechanical devices or valves shall be allowed. Pipe sizing shall be based on the pre-calibrated rate of flow L/s of the precalibrated weir for the maximum allowable water depth, and Table 8-22 and Table 8-23 to 8-25. The height of stones or other granular material above the waterproofed surface shall not be considered in water depth measurement, and the roof surface in the vicinity of the drain shall not be recessed to create a reservoir. Roof design, where controlled flow roof drainage is used, shall be such that the minimum design roof live load is 146.5 kg / m 2 to provide a safety factor above the 73.2 kg / m 2 represented by the depth of water stored on the roof as indicated in Table 8-28. Scuppers shall be provided in parapet walls. The distance of scupper bottoms above the roof level at the drains shall not exceed the maximum distances specified in Table 8-30. Table 8-30 Distance of Scupper Bottoms above Roof Roof Rise mm Maximum Distance of Scupper Bottom Above Roof Level at Drains mm (Flat) 75 50 100 100 125 150 150 Source: Table 11-5 UPC 2000 Edition Scupper openings shall be a maximum of 25.4 mm high. A sufficient number of scuppers shall be provided so that the total scupper cross-Sectional area is at least equal to that required for horizontal storm drains in Table 8-23 to Table 8-25 (column for 12.7 mm slope). 8-90 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures pressure of 34.5 kPa or sufficient to balance a column of mercury 254 mm in height. This pressure shall be held without introduction of additional air for a period of at least fifteen (15) minutes. Schedule 40 plastic DWV systems shall not be tested by the air test method. Exceptions: When circumstances exist that make air and water tests, impractical, and for minor maintenance, repairs and installations, the Sanitary Engineer may perform the inspection as considered advisable by said authority to assure that the work has been in accordance with provisions of these Design Guidelines. Material Uses: Rainwater piping placed within the interior of a building or run within a vent or shaft shall be of cast iron, galvanized steel, wrought iron, brass, copper, lead, Schedule 40 ABS DWV, Schedule 40 PVC DWV, or other approved materials, and changes in direction shall conform to the requirements of Section 8.3.3.4, ABS and PVC DWV piping installations shall be installed except for individual single family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50, when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials. Expansion Joints Required: Expansion joints or sleeves shall be provided where warranted by temperature variations or physical conditions. 8.3.17 Hangers and supports: Hangers and support shall be the same as referred to in Section 8.3.14.2. Water Supply and Distribution System Description: The water is supplied from a local water utility service through a metering device and into the building and / or a storage tank. The water distribution design is based on the architectural plan. The system may be up feed or gravity feed depending on the approach of the engineer. Potable water is distributed by to the fixtures depending on the system adopted by the designer. Running Water Required: Except where not deemed necessary for safety or sanitation by the Sanitary Engineer, each plumbing fixture shall be provided with an adequate supply of potable running water piped thereto in an approved manner, so arranged as to flush and keep it in a clean and sanitary condition without danger of backflow or cross-connection. Water closets and urinals shall be flushed by means of an approved flush tank or flushometer valve. In jurisdictions which adopt Reclaimed Water for non-Residential Buildings (Appendix J of UPC 2000 Edition), water closets, urinals, and trap primers in designated non-residential buildings may be provided with reclaimed water as defined and regulated by same referenced appendix. Identification of a Potable and Non–Potable Water System: In all buildings where potable water and non-potable water systems are installed, each system shall be clearly identified. Each system shall be color coded as follows: 8-92 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Potable Water – Green Background with White Lettering: Non-potable Water – Yellow background with black lettering, with the words “CAUTION: NONPOTABLEWATER, DO NOT DRINK”. Each system shall be identified with a colored band to designate the liquid being conveyed, and the direction of normal flow shall be clearly shown. The minimum size of the letters and length of the color field shall conform to Table 8-31. A colored identification band shall be indicated every 6.096m but at least once per room, and shall be visible from the floor level. Where vacuum breakers or backflow preventers are installed with fixtures listed in Table 14-1 of UPC 2000 Edition, identification of the discharge side may be omitted. Each outlet on the non-potable water line which could be used for special purposes shall be posted as follows: “CAUTION: NONPOTABLE WATER, DO NOT DRINK” Table 8-31 Minimum Length of Color Field and Size of Letters Outside Diameter of Pipe or Covering mm Minimum Length of Color Field Mm Minimum Size of Letters mm 15 to 32 203 12.7 40 to 50 203 19.1 65 to 150 305 32 200 to 250 619.0 64 Over 250 813.0 89 Source: Table 6-1 UPC 2000 Edition Reclaimed Water – Purple (Pantone color #512) background and shall be imprinted in nominal 1/2” (12.7 mm) high, black, upper case letters, with the words “CAUTION: RECLAIMED WATER, DO NOT DRINK”. Design Criteria Water Distribution System Hot and Cold Water Supply 1. Operating Pressure Minimum Maximum = = 2. Pressure Drop Due to Friction 1.7 kg/sq.cm. 4.22kg/sq.cm. Pressure drop is determined to provide minimal effect on the delivery of water to the fixtures. Friction effect will be lower using smoother the pipes. for Galvanized Steel Pipe = 120 for Copper Pipe = 120 for Cast Iron Pipe for polymer Pipe 3. Velocity = = 110 130 Optimum velocity for cold water piping Mains (maximum) = 1.8 m/s Branches (maximum) = 3.0 m/s Risers (maximum) Pipe Sizing = 2.4 m/s Shall be based on water flow requirement and as provided by National Plumbing Code minimum requirement, refer to Section 8.3.18.7 for Pipe Sizing for Potable Water. Connections Prohibitions Faucets and Diverters: Faucets and diverters shall be connected to the water distribution system so that hot water corresponds to the left side of the fittings. Unlawful Connections: No installation of potable water supply piping or part thereof shall be made in such a manner that it will be possible for used, unclean, polluted or contaminated water, mixtures, or substances to enter any portion of such piping from any tank, receptor, equipment, or plumbing fixture by reason of back-siphonage, by suction or any other cause, either during normal use and operation thereof or when any such tank, receptor, equipment, or plumbing fixture is flooded, or subject to pressure in excess of the operating pressure in the hot or cold water piping. No person shall make a connection or allow one to exist between pipes or conduits carrying domestic water supplied by any Public or Private water service system, and any pipes, conduits, or fixtures containing or carrying 8-93 8-94 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-6 A-7 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-1 Use / Occupancy Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-7 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-2 Use / Occupancy A-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-8 A-9 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-2 Use / Occupancy Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-9 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-3 Use / Occupancy A-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-10 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-1 Use / Occupancy Note: The Minimum NBCP setbacks may have to be relaxed as these will cause extreme hardship and losses to the lot owner i.e. as the resultant to utilization is much too low. A-11 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-11 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-2 Use / Occupancy A-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-12 A-13 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-2 Use / Occupancy Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-13 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-1 Use / Occupancy A-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-14 A-15 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-3 Use / Occupancy Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-15 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-1 A-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-16 A-17 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-3 Use / Occupancy Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-17 Suggested Minimum Lot Sizes, Lot Dimensions and Types for C-3 Use / Occupancy A-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-18 A-19 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-19 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Maximum A-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-20 A-21 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-4 Maximum Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-21 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-5 Use / Occupancy A-22 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-22 A-23 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-23 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-1 A-24 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-24 A-25 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-25 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Basic A-26 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-26 A-27 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Basic Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-27 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Basic A-28 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-28 A-29 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Basic Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-29 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Maximum A-30 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-30 A-31 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Maximum Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-31 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Maximum A-32 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-32 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-2 Maximum Note: The Minimum NBCP setbacks may have to relaxed as these will cause extreme hardship and losses to the lot owner i.e. as the resultant lot utilization is much too low. A-33 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-33 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 basic A-34 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-34 A-35 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Basic Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-35 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Basic A-36 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-36 C A A-37 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Basic Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-37 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Maximum A-38 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-38 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Maximum Note: The Minimum NBCP setbacks may have to be relaxed as these will cause extreme hardship and losses to the lot owner i.e. as the resultant lot utilization is much too low. A-39 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-39 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-3 Maximum A-40 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-40 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-4 Maximum Note: The Minimum NBCP setbacks may have to be relaxed as these will cause extreme hardship and losses to the lot owner i.e. as the resultant lot utilization is much too low. A-41 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-41 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-4 Maximum A-42 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-42 A-43 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-4 Maximum Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-43 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-5 Use / Occupancy A-44 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-44 A-45 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-5 Use / Occupancy Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure A-45 Suggested Minimum Lot Sizes, Lot Dimensions and Types for R-5 Use / Occupancy A-46 Annex B Outermost Faces of Buildings (OFB) and Outermost Limits of Building Projections (OLBP) under the 2004 Revised IRR of P.D. No. 1096 (1977 NBCP) Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Contents B.1 INTRODUCTION ........................................................................................................................................... 1 Tables, Figures and Equations Table B-1 List of Acronyms used for this Annex ........................................................................................................................1 Figure B-1 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 3.00 Figure B-2 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 8.00 Figure B-3 Figure B-4 Figure B-5 Figure B-6 Figure B-7 Figure B-8 Figure B-9 Figure B-10 Figure B-11 Figure B-12 Figure B-13 Figure B-14 Figure B-15 Figure B-16 B-i m RROW ...................................................................................................................................................................................2 m RROW ...................................................................................................................................................................................3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-17 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 Figure B-18 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 Figure B-19 Figure B-20 Figure B-21 m RROW ................................................................................................................................................................................ 18 m RROW ................................................................................................................................................................................ 19 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 26.00 m RROW ................................................................................................................................................................................ 20 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 40.00 m RROW ................................................................................................................................................................................ 21 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 50.00 m RROW ................................................................................................................................................................................ 22 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 8.00 m RR ...........................................................................................................................................................................................4 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 12.00 m RROW ...................................................................................................................................................................................5 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 16.00 m RROW ...................................................................................................................................................................................6 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 16.00 m RROW ...................................................................................................................................................................................7 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 m RROW ...................................................................................................................................................................................8 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 m RROW ...................................................................................................................................................................................9 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 24.00 m RROW ................................................................................................................................................................................ 10 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 30.00 m RROW ................................................................................................................................................................................ 11 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 40.00 m RROW ................................................................................................................................................................................ 12 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 6.00 m RROW ................................................................................................................................................................................ 13 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 6.00 m RROW ................................................................................................................................................................................ 14 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 10.00 m RROW ................................................................................................................................................................................ 15 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 12.00 m RROW ................................................................................................................................................................................ 16 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 16.00 m RROW ................................................................................................................................................................................ 17 B-ii Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures B.1 Introduction This Annex graphically illustrates the prescribed compliances for the Outermost Face of Buildings (OFB) and Outermost Limits of Building Projections (OLBP) based on the derived angles from the road right-of-way (RROW) centerline as dictated by the local government unit (LGU)-approved land use or zoning classification, RROW width, prescribed building setbacks (including incremental setbacks), building height limit (BHL), etc. And the resultant NO-BUILD ZONE (NBZ) under the 2004 Revised IRR of P.D. No. 1096 (the 1977 National Building Code of the Philippines/ NBCP). The document is intended for ready reference by physical planners, architects, designers, and the competent reviewing authorities authorized to review/ process and approve building plans under P.D. No. 1096. Table B-1 Term B-1 List of Acronyms used for this Annex Definition C-1 Commercial 1 (Light Commercial) classification i.e. a neighborhood or community level of commercial use or occupancy, characterized mainly as a low-rise building/ structure for low intensity commercial/trade, service and business activities, e.g. one to three (1 to 3) storey shopping centers, small offices or mixed use/ occupancy buildings and the like) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); C-2 Commercial 2 (Medium Commercial) classification i.e. a municipal or city level of commercial use or occupancy, characterized mainly as a medium-rise building/structure for medium to high intensity commercial/ trade, service and business activities, e.g. three to five (3 to 5) storey shopping centers, medium to large office or mixed use/ occupancy buildings/ structures and the like) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); C-3 Commercial 3 (Metropolitan Commercial) classification i.e. a metropolitan level of commercial use/ occupancy, characterized mainly as a medium-rise to highrise building/ structure for high to very high intensity commercial/ trade, service and business activities, e.g. large to very large shopping malls, very large office or mixed use/ occupancy buildings and the like) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); R-1 Residential 1 classification (low density residential zone e.g. single family, single-detached dwellings) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); R-2 Residential 2 classification (medium density residential use or occupancy e.g. low-rise single-attached, duplex or multi-level building/ structure for exclusive use as multi-family dwellings) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); R-3 Residential 3 classification (high density residential use or occupancy e.g. lowrise or medium-rise building/ structure for exclusive use as multiple family dwellings with mixed housing types) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); R-4 Residential 4 classification (medium to high density residential use or occupancy e.g. low-rise townhouse building/ structure for exclusive use as multiple family dwellings) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP); and R-5 Residential 5 classification (very high density residential use or occupancy e.g. medium-rise or high-rise condominium building/ structure for exclusive use as multiple family dwelling) under Rule VII of the 2004 IRR of P.D. No. 1096 (NBCP). Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-1 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 3.00 m RROW B-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-2 B-3 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 8.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-3 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 8.00 m RR B-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-4 B-5 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 12.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-5 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 16.00 m RROW B-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-6 B-7 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 16.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-7 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 m RROW B-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-8 B-9 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-9 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 24.00 m RROW B-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-10 B-11 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 30.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-11 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 40.00 m RROW B-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-12 B-13 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 6.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-13 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 6.00 m RROW B-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-14 B-15 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 10.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-15 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 12.00 m RROW B-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-16 B-17 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 16.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-17 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 m RROW B-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-18 B-19 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 20.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-19 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 26.00 m RROW B-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-20 B-21 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 40.00 m RROW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure B-21 RROW Angles from Centreline that Determine the OFB of Buildings / Structures along a 50.00 m RROW B-22 Annex C Proposed Typical Public Buildings (Reference Concept-Level Architectural Plans and Designs for Proposed Typical Buildings Intended for Public Use) Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Contents C.1 PROPOSED TYPICAL PUBLIC BUILDINGS (REFERENCE CONCEPT-LEVEL ARCHITECTURAL PLANS AND DESIGNS FOR PROPOSED TYPICAL BUILDINGS INTENDED FOR PUBLIC USE) ............................. 1 C.1.1 C.1.2 C.1.3 C.1.4 C.1.5 C.1.6 C.1.7 C.1.8 C.1.9 C.1.10 C.1.11 C.1.12 C.1.13 FIVE-STOREY SECONDARY SCHOOL BUILDING ....................................................................................................... 1 FOUR- TO EIGHT-STOREY PUBLIC HOUSING BUILDING .......................................................................................... 3 CIVIC CENTRE BUILDING (OPTION 1) .................................................................................................................. 9 CIVIC CENTRE BUILDING (OPTION 2) ................................................................................................................ 13 EXPANDABLE 2-STOREY HALL OF JUSTICE BUILDING ........................................................................................... 21 2-STOREY FIRE AND POLICE STATION BUILDINGS ............................................................................................... 25 CITY BUS TERMINAL BUILDING ......................................................................................................................... 29 PUBLIC MARKET BUILDING ............................................................................................................................... 31 PUBLIC GYMNASIUM BUILDING.......................................................................................................................... 36 PUBLIC POOL AND BATH BUILDING .................................................................................................................... 37 COVERED COURT BUILDING ............................................................................................................................... 39 4-STOREY PUBLIC COVERED PARKING BUILDING ................................................................................................. 40 SMALL AIRPORT PASSENGER TERMINAL BUILDING (PTB) ................................................................................... 44 Tables, Figures and Equations Table C-1 Spatial Programming of 5-Storey Secondary School Building .........................................................................3 Table C-3 Spatial Programming of Civic Centre Building (Option 1) ............................................................................. 11 Table C-2 Spatial Programming of 5-Unit per Floor, 4-Storey/ 8-Storey Public Housing Building .....................8 Table C-4 Spatial Programming of Civic Center Building (Option 2) .............................................................................. 16 Table C-6 Spatial Programming of 2-storey Fire Station Building ................................................................................... 27 Table C-5 Table C-7 Table C-8 Table C-9 Table C-10 Table C-11 Table C-12 Table C-13 Table C-14 Table C-15 Spatial Programming of Expandable 2-storey Hall of Justice Building ..................................................... 24 Spatial Programming of Police Substation Building .......................................................................................... 29 Spatial Programming of City Bus Terminal Building ........................................................................................ 31 Spatial Programming of Public Market Building ................................................................................................. 34 Figure C-7 Figure C-8 Figure C-9 C-i Conceptual Architectural Plans of 2-Storey Hall of Justice Building .......................................................... 22 Figure C-13 Figure C-14 Figure C-15 Figure C-16 Figure C-17 Figure C-18 Figure C-19 Figure C-20 Figure C-21 Figure C-22 Figure C-23 Figure C-24 Figure C-25 Figure C-26 Figure C-27 Figure C-28 Figure C-29 Figure C-30 Figure C-31 Figure C-32 Perspectives of 2-storey Hall of Justice Building ................................................................................................ 21 Perspective of 2-Storey Fire Station Building ...................................................................................................... 25 Conceptual Architectural Plans of 2-Storey Fire Station Building .............................................................. 26 Perspective of Police Substation Building.............................................................................................................. 28 Conceptual Floor Plan of Police Substation Building ........................................................................................ 28 Perspectives of City Bus Terminal Building .......................................................................................................... 29 Conceptual Architectural Plans of City Bus Terminal Building .................................................................... 30 Perspectives of Public Market Building .................................................................................................................. 31 Conceptual Architectural Plans of Public Market Building ............................................................................ 32 Perspective of Public Gymnasium Building........................................................................................................... 36 Conceptual Architectural Plans of Public Gymnasium Building .................................................................. 36 Perspective of Public Pool and Bath Building ...................................................................................................... 37 Conceptual Architectural Plan of Public Pool and Bath Building ................................................................ 38 Perspective of Covered Court Building ................................................................................................................... 39 Conceptual Architectural Plan of Covered Court Structure ........................................................................... 39 Perspective of Public Covered Parking Building ................................................................................................. 40 Conceptual Architectural Plans of Public Covered Parking Building......................................................... 40 Perspectives of a Small Airport Passenger Terminal Building ..................................................................... 44 Conceptual Architectural Plan of a Small Port Passenger Terminal Building (PTB) .......................... 45 Perspectives of a Small Port Passenger Terminal Building (PTB) Option 1 ........................................... 46 Conceptual Architectural Plan of a Small Port Passenger Terminal Building (PTB) Option 2….. 47 Spatial Programming of 4-storey Public Covered Parking Building .......................................................... 42 Spatial Programming of a Small Port Passenger Terminal Building (PTB) Option 1 ......................... 45 Spatial Programming of a Small Port Passenger Terminal Building (PTB) Option 2… ..................... 47 Perspectives of 4-storey Public Housing Building ................................................................................................3 Figure C-6 Figure C-12 Figure C-11 Spatial Programming of Covered Court Structure ............................................................................................. 40 Figure C-3 Figure C-5 Conceptual Architectural Plans of Civic Center (Option 2) ............................................................................ 13 Spatial Programming of Public Pool and Bath Building................................................................................... 38 Perspective of a 5-storey Secondary School Building ..........................................................................................1 Figure C-4 Figure C-10 Spatial Programming of Public Gymnasium Building ....................................................................................... 37 Figure C-1 Figure C-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Conceptual Architectural Plans of 5-storey Secondary School Building .....................................................1 Conceptual Architectural Plans of 4-storey Public Housing Building ..........................................................4 Perspectives of 8-storey Public Housing Building ................................................................................................6 Perspectives of 8-storey Public Housing Building ................................................................................................6 Perspectives of Civic Center Building (Option 1) ..................................................................................................9 Conceptual Architectural Plans of Civic Center Building (Option 1) ............................................................9 Perspectives of Civic Center Building (Option 2) ............................................................................................... 13 C-ii Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures C-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures C-5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-2 Spatial Programming of 5-Unit per Floor, 4-Storey/ 8-Storey Public Housing Building 5-UNIT PER FLOOR, 12-STOREY BUILDING NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D Garden/Atrium 12.8 3.6 46.08 Stairwell 4 2.85 11.4 Elevator 2.8 2.6 7.28 E.E. 1 2.6 2.6 Open Area / Circulation 16.4 24.5 334.12 TOTAL GROUND FLOOR AREA 16.4 26 411 TYPICAL UNIT [X5] 5.5 10 275 Balcony 5.5 1.5 8.25 Bedroom 2 2.7 6 Master's Bedroom 3.5 2.7 9.45 Dining and Living 3 5.8 16.8 Toilet and Bath 01 2.4 1.8 3.96 Toilet and Bath 02 2.4 1.4 3.72 Kitchen 2.4 2.6 6.24 Stairwell 4 2.85 11.4 Elevator 2.8 2.6 7.28 E.E. 1 2.6 2.6 SUBTOTAL (sq.m) GROUND FLOOR TYPICAL 2ND - 11TH FLOOR Subtotal: Typical Unit 54.42 Circulation TOTAL TYPICAL 2ND-11TH FLOOR AREA 109.92 16.4 27.5 406.2 Stairwell 4 2.85 11.4 Machine Room 5.4 2.6 14.04 Open Area 16.4 27.5 380.76 TOTAL ROOF DECK FLOOR AREA 16.4 27.5 406.2 ROOF DECK TOTAL 5-UNIT PER FLOOR, 12STOREY PUBLIC HOUSING BUILDING FLOOR AREA C-7 5285.4 C-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures C-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Spatial Programming of Civic Centre Building (Option 1) CIVIC CENTER BUILDING [OPTION 1] NAME OF SPACE CIVIC CENTER BUILDING [OPTION 1] SPACE PROGRAM DIMENSION (m) AREA(m²) SUBTOTAL (sq.m) DIMENSION (m) AREA(m²) W D Public Service 10 20 200 W D Public Service 10 17 170 Lobby 50 40 1400 Treasurer 10 20 200 Male's Toilet 3.5 10 35 Storage 7 10 70 Female's Toilet 3.5 10 35 E.E. 3 10 30 Utility Storage 7 10 70 GROUND FLOOR Subtotal: Public Space 1470 Enclosed Hallways (Left Wing) 260 Enclosed Hallways (Right Wing) 226 Subtotal: Private Circulation Subtotal: Private Spaces 5000 SECOND FLOOR Stairwell 1 3 6 18 Stairwell 1 3 6 18 Stairwell 2 3 6 18 Stairwell 2 3 6 18 Stairwell 3 10 10 100 Stairwell 3 10 10 100 136 Subtotal: Stairwells 136 Consultation Office 10 10 100 Lobby & Open Hallways 50 40 1520 Legal Affairs Office 10 10 100 Male's Toilet 3.5 10 35 Attorney's Office 10 10 100 Female's Toilet 3.5 10 35 Traffic Office 10 10 100 Public Library 30 37 1110 Social Welfare and Development Office 10 10 100 Subtotal: Public Spaces Engineering Design 10 10 100 Hearing Room 1 10 10 100 Engineering Office 10 10 100 Hearing Room 2 10 10 100 Planning and Development Office 10 10 100 Hearing Room 3 10 10 100 Mayor's Office 8 10 80 Attorney's Office 1 10 10 100 Vice Mayor's Office 8 10 80 Attorney's Office 2 10 10 100 Conference Room 8 7 56 Hearing Room 4 10 10 100 Files storage 8 10 80 Hearing Room 5 10 10 100 Files storage (Clerical) 3 7 21 Hearing Room 6 10 10 100 Clerical 5 7 35 Council Chamber 01 30 17 510 Personnel Office 8 10 80 Council Chamber 02 30 20 600 Administrator Office 8 10 80 Storage 7 10 70 Plan Checking Office 5 7 35 Utility Storage 7 10 70 Files Storage (Plan Checking Office) 3 7 21 E.E. 3 10 30 Budget Office 8 10 80 Enclosed Circulation Treasurer Office 8 10 80 Subtotal: Private Spaces Clerical 5 7 35 TOTAL SECOND FLOOR 5000 Accounting Clerical 5 7 35 10 7 70 TOTAL CIVIC CENTER BUILDING [OPTION 01] FLOOR AREA 10000 Conference Room Vault 10 10 100 Chief Deputy Auditor Office 8 10 80 Accounting Office 8 10 80 Clerical 5 7 35 Clerical 5 7 35 Public Service 10 17 170 SUBTOTAL (sq.m) 2908 TOTAL GROUND FLOOR 486 Subtotal: Stairwells C-11 NAME OF SPACE SPACE PROGRAM 2700 84 2164 C-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures C-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-4 Spatial Programming of Civic Center Building (Option 2) CIVIC CENTER BUILDING [OPTION 2] NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D Stairwell 1 3 6 18 Stairwell 2 3 6 18 Stairwell 3 10 10.5 105 Stairwell 4 10 10.5 105 Stairwell 5 3 6.5 19.5 Stairwell 6 3 6.5 19.5 Subtotal (sq.m) LOWER GROUND FLOOR Subtotal: Stairs 285 General Storage Room 1 7 8 56 General Storage Room 2 7 8 56 Parking for dump truck 1 10 4 40 Parking for dump truck 2 10 4 40 Garbage Disposal Area 1 7 6 42 Garbage Disposal Area 2 7 6 42 Driveway 10 697 6970 Parking Space [x301] 5 2.5 3762.5 Open Area / Atrium 70.5 52 3666 Islands and Walkways 940.5 TOTAL GROUND FLOOR 15900 UPPER GROUND FLOOR C-15 General Storage Room 1 7 8 56 Planning and Development Office 10 7.3 73 Chief Engineering Office 10 6.5 65 Photocopy Room 10 4 40 Storage Room 1 7 4.5 31.5 Maintenance office 10 6.5 65 Conference room 1 10 6 60 Vault 10 17 170 Records Storage Room 7 13.8 96.6 Conference room 2 7 8.5 59.5 Files Storage Room 7 14 98 Conference room 3 7 7.5 52.5 Files Storage Room 7 14.5 101.5 Clerical Area 1 10 13.8 138 Clerical Area 2 10 13.8 138 Clerical Area 3 10 13.2 132 Clerical Area 4 10 13.2 132 Budget Office 10 8.5 85 Treasurer's Office 10 8.5 85 Public Service 1 10 24 240 Public Service 2 10 23.5 235 C-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures CIVIC CENTER BUILDING [OPTION 2] NAME OF SPACE Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures SPACE PROGRAM DIMENSION (m) AREA(m²) Subtotal (sq.m) NAME OF SPACE SPACE PROGRAM DIMENSION (m) D Auditor's Office 10 8.3 83 Females Toilet Chief Deputy Auditor Office 10 8.3 83 Waiting Areas & Circulation Conference room 10 6 60 Subtotal: Public Spaces Accounting Office 10 6 60 Stairwell 1 3 6 18 Treasurer Office 10 8.5 85 Stairwell 2 3 4.5 13.5 Personnel Office 10 8.5 85 Stairwell 3 3 6 18 Engineering Design Office 10 11.5 115 Stairwell 4 3 4.5 13.5 Plan Checking Office 10 11.5 115 Stairwell 5 10 10.5 105 Water Services Office 10 11.5 115 Stairwell 6 10 10.5 105 Public Information Office 10 11.5 115 Subtotal: stairwells Consultation Office 10 11.5 115 UPPER GROUND FLOOR TOTAL Legal Affairs Office 10 11.5 115 SECOND FLOOR PLAN Traffic Office 10 11.5 115 Councillor’s Office 1 10 11.5 115 Social Welfare and Development Office 10 11.5 115 Councillor’s Office 2 10 11.5 115 Control centre 20 22.3 446 Legal Counsel Office 10 11.5 115 Information Desk and Public Service 20 23.5 470 Library 20 11.5 230 Police Assembly Room 24.5 13.8 338.1 Clustered Cell 1 10 11.5 115 Police Office 24.5 32 784 Clustered Cell 2 10 11.5 115 Police Chief Office 10 6 60 Clustered Cell 3 10 11.5 115 Police Public Safety Office 1 10 8.5 85 Clustered Cell 4 10 11.5 115 Interview Room 03 5 6 30 Clustered Cell 5 10 11.5 115 Interview Room 04 5 6 30 E.E. 2 3 6.5 19.5 Police Public Safety Office 2 10 8.5 85 Shower and Locker Area 4 8 32 File/s Storage Room 6.5 6 39 Utilities Storage 3 3 9 Conference room 6.5 8.5 55.25 Dining and Dayroom Area 1 12 17 197.4 Police Office 1 10 11.5 115 Dining and Dayroom Area 2 12 23.5 282 Police Office 2 10 11.5 115 Prison Area 58 53 2210 Police Office 3 10 11.5 115 Kit 10 4 40 Police Office 4 10 11.5 115 Storage Room 7 6 42 Police Office 5 10 11.5 115 Interrogation Room 10 5.25 52.5 Police Office 6 10 11.5 115 Visiting Room 1 10 5.25 52.5 Police Office 7 10 11.5 115 Visiting Room 2 10 6.5 65 Police Office 8 10 11.5 115 Warden's Office 10 9.3 93 General Storage Room 2 7 8 56 Police Captain's Office 10 9.3 93 Clustered Cell 1 10 7.3 73 Conference Room 8 9.3 74.4 Clustered Cell 2 10 6.5 65 Patrol Guards Office 20 23.5 470 Clustered Cell 3 10 4 40 File/s Storage Room 7 14.5 101.5 Firearms and Equipment Storage Room 10 17 170 Conference Room 10 6 60 Storage Room 7 4.5 31.5 Assistant City Management Office 10 8.5 85 Clerical 10 6 60 E.E. 3 11.5 34.5 City Management Office 10 8.5 85 Males Toilet 3.5 9.5 33.25 File/s Storage Room 7 14 98 7307.45 W D 3.5 9.5 AREA(m²) W Subtotal: Private Spaces C-17 CIVIC CENTER BUILDING [OPTION 2] Subtotal (sq.m) 33.25 5445.55 5546.55 273 13127 C-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures CIVIC CENTER BUILDING [OPTION 2] NAME OF SPACE Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures SPACE PROGRAM DIMENSION (m) AREA(m²) W D Conference Room 7 7.5 52.5 Council Hall 2 30 21.5 Council Hall 1 30 Councillor’s Office 3 Subtotal (sq.m) NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D Shower and Locker Area 4 8 32 645 Utilities Storage 3 3 9 22.3 669 General Storage Room 2 7 8 56 10 7.3 73 Attorney's Office 1 10 7.3 73 Councillor’s Office 4 10 6.5 65 Attorney's Office 2 10 6.5 65 Photocopy Room 10 4 40 Photocopy Room 10 4 40 Storage Room 7 6 42 Storage Room 7 6 42 Maintenance Office 10 6.5 65 Maintenance Office 10 6.5 65 Conference Room 10 8 80 Conference Room 10 8 80 City Administrator's Office 10 6.5 65 Judge's Office 1 10 6.5 65 Vice Mayor's Office 1 10 6.5 65 Judge's Office 2 10 6.5 65 Vice Mayor's Office 2 10 6.5 65 Judge's Office 3 10 6.5 65 Mayor's Office 10 6.5 65 Judge's Office 4 10 6.5 65 General Storage Room 7 8 56 Bailiff 1 of Courthouse 1 7 7.3 51.1 General Storage Room 7 8 56 Storage of Courthouse 1 7 6.5 45.5 E.E. 3 11.5 34.5 Bailiff 2 of Courthouse 1 7 8.5 59.5 Courthouse 1 30 22.3 669 Subtotal: Private Areas 7509.8 Males Toilet 3.5 9.5 33.25 Bailiff 1 of Courthouse 2 7 6.5 45.5 Females Toilet 3.5 9.5 33.25 Storage of Courthouse 2 7 7.8 54.6 Waiting Areas & Circulation 8038.7 Subtotal: Public Spaces 8139.7 Bailiff 2 of Courthouse 2 7 7.2 50.4 Courthouse 2 30 21.5 645 Stairwell 1 3 6 18 File/s Storage Room 7 14.5 101.5 Stairwell 2 3 6.5 19.5 Conference Room 10 6 60 Stairwell 3 3 6 18 Hearing Room 03 10 8.5 85 Stairwell 4 3 6.5 19.5 Clerical 10 6 60 Stairwell 5 10 10.5 105 Hearing Room 04 10 8.5 85 Stairwell 6 10 10.5 105 Dining and Dayroom Area 1 12 17 197.4 Dining and Dayroom Area 2 12 23.5 282 Prison Area 58 53 2210 Kit 10 4 40 Subtotal: stairwells 285 TOTAL SECOND FLOOR 15900 THIRD-FOURTH FLOOR C-19 CIVIC CENTER BUILDING [OPTION 2] General Storage Room 1 7 8 56 Storage Room 7 6 42 E.E. 3 11.5 34.5 Interrogation Room 10 5.25 52.5 Public Attorney's Office 10 11.5 115 Visiting Room 1 10 5.25 52.5 Hearing Room 1 10 11.5 115 Visiting Room 2 10 6.5 65 Hearing Room 2 10 11.5 115 Warden's Office 10 9.3 93 Library 20 11.5 230 Police Captain's Office 10 9.3 93 Clustered Cell 1 10 11.5 115 Conference Room 8 9.3 74.4 Clustered Cell 2 10 11.5 115 Patrol Guards Office 20 23.5 470 Clustered Cell 3 10 11.5 115 Subtotal: Private Areas Clustered Cell 4 10 11.5 115 Males Toilet 3.5 9.5 33.25 Clustered Cell 5 10 11.5 115 Females Toilet 3.5 9.5 33.25 E.E. 2 3 6.5 19.5 Waiting Areas & Circulation Subtotal (sq.m) 7665.9 7882.6 C-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-5 Spatial Programming of Expandable 2-storey Hall of Justice Building EXPANDABLE 2-STOREY HALL OF JUSTICE BUILDING NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D Judge's Office 01 10 6 60 Judge's Office 02 10 6 60 Entry to Cells 3.6 6 21.6 Cell 1 3.8 3 11.4 Cell 2 3.8 3 11.4 Judge's Office 03 8 7.5 60 Staff's Office 01 8 7.5 60 Attorney's Office 3 8 7.5 60 Attorney's Office 4 8 7.5 60 Attorney's Consultation 8 10 80 Judge's Office 04 8 7.5 60 Staff's Office 02 8 7.5 60 File Storage 8 5 40 Male's Toilet 8 3.25 23.1635 Female's Toilet 8 3.25 23.1635 Storage 8 3 24 General Office 8 10 80 Court room 01 8.85 8.85 78.3225 Court room 02 8.85 8.85 78.3225 Court room 03 8.85 8.85 78.3225 Court room 04 8.85 8.85 78.3225 Court Lobby 17.7 20 304 Stairs 01 3 4.25 14.625 Stairs 02 3 4.25 14.625 Stairs 03 5 5 25 Stairs 04 5 5 25 37.7 47.7 1798.29 Judge's Office 01 10 6 60 Judge's Office 02 10 6 60 File Storage 4 6 24 Entry to Cells 3.6 6 21.6 Cell 1 3.8 3 11.4 Cell 2 3.8 3 11.4 Judge's Office 03 8 7.5 60 Hearing Room 01 8 7.5 60 Attorney's Office 01 8 7.5 60 Attorney's Office 02 8 7.5 60 Attorney's Consultation 8 10 80 GROUND FLOOR Circulation GROUND FLOOR TOTAL 307.023 SECOND FLOOR C-23 C-24 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure C-14 Conceptual Architectural Plans of 2-Storey Fire Station Building C-26 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-6 Spatial Programming of 2-storey Fire Station Building 2-STOREY FIRE STATION BUILDING NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D Maintenance Area 10 14 140 Fire hose Storage 4 3.5 14 Turnout Storage 4 3.5 14 Medical Supplies Storage 4 3.5 14 Stairwell 3.2 3 9.6 Clinic 4 6 24 Clinic Head's Office 4 6 24 Firefighter's Captain Office 4 6 24 Chief Firefighter's Office 4 6 24 Admins Office 4 6 24 Lobby 20 8 106 Conference Room 9 5 45 Alarm / Watch Room 3 3 9 Fire Trucks 29 14 354.4 GROUND FLOOR TOTAL GROUND FLOOR AREA 826 SECOND FLOOR C-27 Male Firefighter's Dressing Room 6 6 36 Utility Storage 3 3 9 Male Firefighter's Toilet and Bath 7 6 42 Female Firefighter's Toilet and Bath 7 6 42 Utility Storage 3 3 9 Female Firefighter's Dressing Room 6 6 36 Male Firefighter's Quarters 16 6 96 Female Firefighter's Quarters 16.05 6 96.3 Stairwell 3.2 3 9.6 Circulation 38.1 14 157.5 TOTAL SECOND FLOOR AREA 375.9 TOTAL FIRE STATION BUILDING FLOOR AREA 1201.9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-9 Spatial Programming of Public Market Building PUBLIC MARKET NAME OF SPACE DIMENSION (m) AREA(m²) W D STALL(LEFT WING) Comfort Room 7.2 9.6 69.12 1 to 16 7.2 12 86.4 7.2 7.2 51.84 4.8 9.6 46.08 4.8 12 57.6 4.8 7.2 34.56 4.8 9.6 46.08 4.8 12 57.6 4.8 7.2 34.56 4.8 9.6 46.08 4.8 12 57.6 4.8 7.2 34.56 4.8 9.6 46.08 4.8 12 57.6 4.8 7.2 34.56 7.2 9.6 69.12 7.2 12 86.4 7.2 7.2 51.84 17 to 40 41 to 64 65 to 88 89 to 112 113 to 136 Subtotal: LEFT WING C-33 SPACE PROGRAM 967.68 C-34 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures PUBLIC MARKET NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D 7.2 7.2 51.84 7.2 12 86.4 7.2 12 86.4 1 to 6(Left) 7.2 7.2 51.84 8 to 33(Right) 4.8 7.2 34.56 4.8 12 57.6 4.8 12 57.6 4.8 12 57.6 4.8 4.8 23.04 4.8 7.2 34.56 4.8 12 57.6 4.8 12 57.6 4.8 12 57.6 4.8 4.8 23.04 4.8 7.2 34.56 4.8 12 57.6 4.8 12 57.6 4.8 12 57.6 4.8 4.8 23.04 4.8 7.2 34.56 4.8 12 57.6 4.8 12 57.6 4.8 12 57.6 4.8 4.8 23.04 8.4 7.2 60.48 8.4 12 100.8 8.4 12 100.8 8.4 12 100.8 8.4 7.2 60.48 STALL(RIGHT WING) 1 to 7 (Right) 7 to 20(Left) 21 to 34(Left) 60 to 85(Right) 35 to 48(Left) 86 to 111(Right) 49 to 62(Left) 1 to 24 Subtotal: RIGHT WING Hallway C-35 1621.44 50.4 36 846.72 50.4 64.8 1644.48 Arcade 513.78 TOTAL PUBLIC MARKET BUILDING FLOOR AREA 5594.1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table C-13 Spatial Programming of 4-storey Public Covered Parking Building PUBLIC COVERED PARKING BUILDING NAME OF SPACE SPACE PROGRAM DIMENSION (m) AREA(m²) W D 5 26.2 131 5 23.6 118 10 31.2 312 GROUND FLOOR PLAN Parking Slot Subtotal: Parking Slots Stair 561 3.25 2.45 Subtotal: Stairs Island 23.8875 1.825 2.6 Subtotal: Islands Comfort Room 7.9625 4.745 14.235 4.85 2.45 11.8825 Subtotal: Comfort Rooms 23.765 Ramp(computed at 2nd floor) 80.25 Driveway 23.075 52.4 TOTAL GROUND FLOOR AREA 505.9925 1209.13 2ND FLOOR Parking Slot 5 10.4 52 5 7.8 39 10 31.2 312 Subtotal: Parking Slots Stair 403 3.25 2.45 1.825 2.6 Subtotal: Stairs Island C-41 7.9625 23.8875 4.745 C-42 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures PUBLIC COVERED PARKING BUILDING NAME OF SPACE SPACE PROGRAM DIMENSION (m) W D Subtotal: Islands Comfort Room AREA(m²) 14.235 4.85 2.45 11.8825 Subtotal: Comfort Rooms 23.765 Ramp 98.14 Subtotal: Ramps 196.28 Driveway 23.075 52.4 TOTAL 2ND FLOOR AREA 547.9625 1209.13 3RD FLOOR Parking Slot 5 10.4 52 5 7.8 39 10 31.2 312 Subtotal: Parking Slots Stair 403 3.25 2.45 Subtotal: Stairs Island 1.825 2.6 Subtotal: Islands Comfort Room 7.9625 23.8875 4.745 14.235 4.85 2.45 Subtotal: Comfort Rooms 11.8825 23.765 Ramp 98.14 Subtotal: Ramps 196.28 Driveway 23.075 52.4 TOTAL 3RD FLOOR AREA 547.9625 1209.13 ROOF DECK Parking Slot 5 10.4 52 5 7.8 39 10 31.2 312 Subtotal: Parking Slots Stair 403 3.25 2.45 Subtotal: Stairs Island 23.8875 1.825 2.6 Subtotal: Islands Comfort Room 4.745 14.235 4.85 2.45 11.8825 Subtotal: Comfort Rooms 23.765 Ramp 98.14 Subtotal: Ramps 196.28 Driveway C-43 7.9625 23.075 52.4 547.9625 TOTAL ROOF DECK AREA 1209.13 TOTAL COVERED PARKING BUILDING FLOOR AREA 4836.52 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure C-30 Conceptual Architectural Plan of a Small Port Passenger Terminal Building (PTB) Table C-14 Spatial Programming of a Small Port Passenger Terminal Building (PTB) Option 1 SMALL PORT PASSENGER TERMINAL BUILDING (PTB) OPTION 1 NAME OF SPACE C-45 SPACE PROGRAM DIMENSION (m) AREA(m²) W D Departure Lounge 7 20 140 Electrical Room 1.5 4 6 Departure Lounge Toilet 1.5 4 6 Arrival Toilet 1.5 4 6 Utlity Room 1.5 4 6 Information / Check-in 3 6 18 Information / Check-in Storage 3 1.8 5.4 Pantry 3 2.2 6.6 Storage 3 2 6 Office 6 13 60 Arrival 7 20 140 TOTAL SMALL PORT PASSENGER TERMINAL BUILDING (PTB) OPTION 1 FLOOR AREA 20 20 400 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Figure C-32 Conceptual Architectural Plan of a Small Port Passenger Terminal Building (PTB) Option 2 Annex D Table C-15 Spatial Programming of a Small Port Passenger Terminal Building (PTB) Option 2 SMALL PORT PASSENGER TERMINAL BUILDING (PTB) OPTION 2 NAME OF SPACE C-47 SPACE PROGRAM DIMENSION (m) AREA(m²) W D Departure Lounge 8 13.4 95.375 Ticket Queueing Area 6.8 2.7 18.36 Office and Ticketing 5.2 11 57.2 Arrival Lounge 8 16 116.175 Departure Lounge Toilet 1.5 2.2 3.3 Arrival Area Toilet 1.5 2.2 3.3 Storage 1 3 1.5 4.5 Storage 2 3 1.6 4.8 TOTAL SMALL PORT PASSENGER TERMINAL BUILDING (PTB) OPTION 2 FLOOR AREA 19 16 304 Minimum Performance Standards and Specifications (MPSS) for New Public Buildings (also applicable private buildings) Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Contents Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Acronyms and Abbreviations Term Definition o C degree Celsius ACI American Concrete Institute (ACI) ACP Architectural Code of the Philippines, DPWH 2000 ADR Alternative Dispute Resolution AISC American Institute of Steel Construction AISI American Iron and Steel Institute ANSI American National Standards Institute ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials (ASTM) AWS American Welding Society B.P. Batas Pambansa (national law) BoQ bill of quantities BPS Bureau of Product Standards BRS Bureau of Research and Standards CAED Conceptual Architectural and Engineering Design CCD Construction Completion Deadline CCN Construction Completion Notice CED Conceptual Engineering Design CO convenience outlet CoC Certificate of Completion CoFA Certificate of Final Acceptance cu.ft. cubic foot/ feet cu.m. cubic meter/s dB (A) decibel/s DAC Design Approval Committee Tables and Figures DAED Detailed Architectural and Engineering Design DBS Design-Build Services Table D-1 DCE detailed cost estimate DCP Detailed Construction Plan DED Detailed Engineering Design DIN Deustche Industrie Norm DLP Defects Liability Period DILG Department of the Interior and Local Government DoH Department of Health DoLE Department of Labor and Employment DoTC Department of Transportation and Communications DPWH Department of Public Works and Highways DTI Department of Trade and Industry E.O. Executive Order FCP Fire Code of the Philippines FCL finished ceiling line D.1 PURPOSE .................................................................................................................................................. 1 D.2 DESIGN ..................................................................................................................................................... 3 D.2.1 SCOPE OF DESIGN SERVICES ...................................................................................................................... 3 D.2.2 D.2.3 D.2.4 D.2.5 D.2.6 D.2.7 D.2.8 D.2.9 D.2.10 COMPONENTS AND OUTPUTS OF DETAILED ARCHITECTURE AND ENGINEERING DESIGN (DAED) BY BUILDER .................................................................................................................................... 3 GOVERNING CODES AND SPECIFICATIONS ............................................................................................... 5 ARCHITECTURAL STANDARDS................................................................................................................... 5 STRUCTURAL STANDARDS ......................................................................................................................... 8 ELECTRICAL STANDARDS ......................................................................................................................... 10 SANITARY AND PLUMBING STANDARDS ................................................................................................ 11 TOILETS ...................................................................................................................................................... 11 MATERIALS ................................................................................................................................................ 11 OTHER STANDARDS .................................................................................................................................. 15 OTHER REQUIREMENTS ........................................................................................................................... 15 D.2.11 D.3 CONSTRUCTION .................................................................................................................................... 16 D.3.1 SCOPE OF CONSTRUCTION ....................................................................................................................... 16 D.3.3 DETAILED CONSTRUCTION PLAN ............................................................................................................ 16 D.3.2 D.3.4 D.3.5 STANDARDS AND SPECIFICATIONS FOR CONSTRUCTION .................................................................... 16 TEST REQUIREMENTS ............................................................................................................................... 17 COMPLETION OF CONSTRUCTION ........................................................................................................... 17 Live Loads ........................................................................................................................................................................................9 Figure D-1 Scope of Design..............................................................................................................................................................................3 D-i D-ii Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Term Definition Term Definition FFL finished floor line RC Referral Code/s FGL finished grade line RCN Rectification Completion Notice FRD Final Rectification Deadline RH relative humidity FFFE Furniture/ Furnishings, Fixtures & Equipment RI Rectification Inspection IC Independent Consultant RLAs registered and licensed architects IM Information Memorandum SIF seismic importance factor IMC intermediate metallic conduit sqm square meter/s IRR Implementing Rules and Regulations WIF wind importance factor ISO International Organization for Standardization ITB Instructions to Bidders ITPB Instructions to Prospective Bidders kg kilogram/s kpa kilopascals kph kilometers per hour LD liquidated damages m meter/s m3 cubic meter/s MDP main distribution panel mg milligram/s mm millimeter/s mpa megapascal/s mpm meters per minute m/s meters per second MPSS Minimum Performance Standards and Specifications MSDS material safety data sheet NBCP National Building Code of the Philippines NFPA National Fire Protection Association NGL natural grade line NSCP National Structural Code of the Philippines NTP Notice to Proceed OSHS Occupational Safety and Health Service P.D. Presidential Decree PCBs polychlorinated biphenyls PCM Project or Construction Manager PEC Philippine Electrical Code PMC Philippine Mechanical Code PNS Philippine National Standards PRLs professional regulatory laws psf pounds per square foot psi pounds per square inch PVC polyvinyl chloride R.A. Republic Act (national law) RC reinforced concrete D-iii D-iv Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.1 Purpose The purpose of these Minimum Performance Standards and Specifications (MPSS) is to: D.1.1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Establish the minimum requirements that the Builder must conform w ith in the design and construction of new Public Buildings to be sited at their respective PROJECT SITES (the ‘Project’). Create certainty for both the Procuring Agency and the Builder in the standards of performance expected of the Builder. The Builder is the winning Bidder i.e. Designer and/or Constructor (the ‘Builder’) under the Agreement (the ‘Agreement’). This MPSS and its Annexes form part of the Agreement and the Builder is required to conform with all the MPSS provisions. Architecture and R.A. No. 10587 for Environmental Planning (the last 4 only as applicable), etc. and their derivative regulations] R.A. No. 4566, the 1965 Contractor’s Licensing Law, implemented by the DTI R.A. No. 8293, The 1997 Intellectual Property Code of the Philippines, implemented by the DTI R.A. No. 386, the New Civil Code of the Philippines (1949), particularly the civil liability provisions under its Art. 1723 E.O. No. 1008, the Law on Construction Arbitration, implemented by the DTI R.A. No. 9285, The Alternative Dispute Resolution (ADR) Act of 2004, its IRR and Special Rules of Court on ADR, promulgated by the Supreme Court (SC) and denominated as A.M. No. 07-11-08-SC Other Documents for use as Reference for the Procurement Effort The other key documents that shall primarily govern the procurement effort are: D.1.2 the MPSS Unless otherwise specified in the ITB and these MPSS, all information contained in the ITB, these MPSS, and the Agreement supersede any information supplied in the Information Memorandum (IM) and previous versions of the MPSS. Governing Laws and Regulations for the Procurement Effort D-1 the Instructions to Bidders (ITB) R.A. No. 9184, the Government Procurement Reform Act (GPRA) and its latest implementing rules and regulations (IRR) R.A. No. 6957, as amended by R.A. No. 7718, the Build-Operate-Transfer (BOT) Law and its latest IRR P.D. No. 1096, the 1977 National Building Code of the Philippines (NBCP), its 2004 Revised IRR, duly promulgated by the DPWH and its various Referral Codes (RCs), mostly official executive issuances or self-regulatory documents in their latest versions [RCs such as valid and subsisting laws e.g. the Water and Sanitation Codes (P.D. Nos. 1067 & 856) and the 2010 (or latest) edition of the National Structural Code of the Philippines/ NSCP], respectively, etc. R.A. No. 9514, the 2008 Fire Code of the Philippines (FCP) and its 2009 IRR, duly promulgated by the DILG B.P. Blg. 344, The Law to Enhance the Mobility of Disabled Persons and its IRR/ Annex as well as the applicable provisions of R.A. No. 7277, otherwise known as The Magna Carta for Disabled Persons the various professional regulatory laws [PRLs, e.g. R.A. No. 9266 in the case of State-registered and licensed architects/ RLAs, R.A. No. 544, as amended by R.A. No. 1582 for registered and licensed civil engineers/ RLCEs, R.A. No. 1364 for Sanitary Engineering, R.A. No. 1378 for Master Plumbing, R.A. No. 8560 for Geodetic Engineering, R.A. No. 4209 for Geology, R.A. No. 7920 for Electrical Engineering, R.A. No. 8495 for Mechanical Engineering, R.A. No. 9292 for Electronics and Communications Engineering, R.A. No. 9053 for Landscape D-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2 Design D.2.1 Scope of Design Services Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Under the Agreement, the Builder shall prepare the Detailed Architecture and Engineering Design (DAED) during the Pre-Construction Stage of the Contract Package and Builder shall also submit its DAED to the Independent Consultant (IC) for review and concurrence, whereby the IC shall be procured through the Procuring Agency’s regular procurement program under R.A. No. 9184, the Government Procurement Reform Act (GPRA) of 2003 and its latest IRR, well before the submission of the DAED. The Builder shall prepare the DAED (a) based on its Conceptual Architectural and Engineering Design (CAED) submitted in the Technical Proposal which is part of its Bid, and (b) in accordance with these MPSS, as shown in Figure D-1 hereafter. Figure D-1 Scope of Design D.2.2 D.2.2.1 The DAED, which the Builder shall prepare and submit to the Project and/or Construction Manager (PCM) or Independent Consultant (IC) for review and concurrence, shall cover the following components and outputs: Design Deliverables The DAED shall include the following outputs which shall all conform to the MPSS for Design, and provide a level of detail that will enable quantities to be estimated up to the plus/ minus five percent (+5%) of the final quantities. The outputs shall be transmitted using international paper/ sheet/ board sizes (i.e. A4 and A3 page size or A2, A1 and A0 sheet size). Description of the proposed technology and materials e.g. use of pre-fabricated components and/ or conventional built-on-site technology; use of concrete/ steel/ fiber cement/ other materials, etc. (A4 page size). Detailed/ technical specifications of materials and workmanship. As applicable, these shall include the certificate of accreditation from the Department of Public Works and Highways (DPWH) Bureau of Research and Standards (BRS) on the acceptance of new materials/ technology or of equivalencies in materials for use in the Project. (A4 and/or A3 page size). Proof of structural quality and integrity of a completed building, particularly for projects which used new materials/ technologies. (A4 and/or A3 page size). Detailed architectural and engineering design (DAED) analyses and computations. (A4 and/or A3 page size). Quantity and cost estimates for the buildings/ structures/ grounds i.e. BoQ and DCE. (A4 and/or A3 page size). Detailed Construction Management Plan (DCMP) including Construction Schedule. (A4 or A3 page size and/or A2 sheet size). Supporting data: - (1) Simple longitudinal and cross sectional profiles of the ITSP site; - Geotechnical investigation report (as applicable)/ geological information report; and Components and Outputs of Detailed Architecture and Engineering Design (DAED) by Builder The DAED shall cover the pertinent Public Buildings as defined by the Procuring Agency. D-3 The Builder’s CAED shall form part of the MPSS. The CAED, together with the MPSS provisions on Construction shall govern the actual construction of the Contract Package to be undertaken by the Builder. DAED plans, elevations, cross-sections and interior/ exterior perspectives of the Public Buildings/ Structures at a scale of 1:100 meters (m) or as applicable, distinguishing between the various building components i.e. architectural, engineering and allied works [architectural interiors (AI), interior design (as needed), furniture design, landscape architecture, etc.] and noting the vastly different site characteristics and existing/ potential hazards to development and continued use/ occupancy. For the structural design, sufficiently detailed information is required for the proposed substructure (i.e. foundation and ground floor slab) and the superstructure. For AI, material/ sample and color boards are required for the key public areas of the Project. (A2, A1 and/ or A0 sheet size). D.2.2.2 - Building drainage design report. (A4 and/or A3 page size) Property Development Component Should a property development component be introduced as a component of the Public Building/ Complex, the same requirements shall be required for submission, in addition to: A market study Business plan. (A4 and/or A3 page size) Furniture/ Furnishings, Fixtures & Equipment (FFFE) Component The DAED for FFFE shall include the following outputs based on the MPSS for FFFE: Detailed Layouts, Plans and Design of FFFE, showing their dimensions; perspectives, plans, and elevations at a scale of 1:10 m, with details at a scale of 1:5 m; materials specifications; and other basic properties. (A4 and/or A3 page size). Detailed Cost Estimate (DCE). (A4 and/or A3 page size). D-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Governing Codes and Specifications The minimum height of the fixed louver or transom window above the operable windows shall be at 300 mm i.e. measured from the glass part of the window. The DAED for the Project shall be governed by the following Design Codes and Specifications. P. D. No. 1096, the 1977 National Building Code of the Philippines (NBCP), its 2004 Revised IRR and its various Referral Codes (RCs) such as R.A. No. 9514, the 2008 Fire Code of the Philippines (FCP), P.D. No. 1067, the Water Code of the Philippines, P.D. No. 856, the Sanitation Code of the Philippines, Batas Pambansa (B.P.) No. 344, the Law to Enhance the Mobility of Disabled Persons and its IRR/ Annexes, and by executive issuances and/or self-regulatory documents such as the National Structural Code of the Philippines (NSCP), Volume I, 2010, Philippine Electrical Code (PEC), 2009, Revised National Plumbing Code, the 2000 Architectural Code of the Philippines (ACP), etc.. Interior window panels (if introduced along passage-ways such as corridors), when opened, must NOT pose an obstruction nor a physical threat along such passage-ways. D.2.4.2 The door swing-out should be 180 degrees for rooms/ enclosed spaces with 30 or more occupants. US Standards: The door leaf must be at least 900 mm in clear width and 2,100 mm in clear height. The doors MUST withstand normal wear and tear and shall be provided with keyed lever-type locksets. - American Concrete Institute (ACI), as applicable PVC doors shall NOT be used. If doors made of materials other than wood are to be introduced by the Builder, these MUST be fire-rated and thoroughly tested for toxicity (normal and burning conditions) and shall have the prior acceptance/ approval by the DPWH BRS. - American Iron and Steel Institute (AISI), as applicable - American Welding Society (AWS), as applicable D.2.4 D.2.4.1 - American Society for Testing and Materials (ASTM), as applicable Philippine National Standards or PNS Appendix G of PEC1 – 2009 R.A. No. 6716 on rainwater collection system Architectural Standards Window sills must NOT be lower than 600 millimeters (mm) NOR higher than 900 mm from the finished floor line (FFL) i.e. measured from the glass part of the window. Toilet doors shall be of framed plywood flush or solid door construction with jamb material [preferably of local (non-banned) or imported hardwood] duly accepted/ approved by the DPWH BRS, and painted or stained as appropriate. Floor The finished floor must be of non-skid finish. The finished floor line (FFL) at enclosed spaces should be higher than the passage-way (common area) FFL by a maximum of 25 mm. The first level FFL elevation of the passage-way (common area) MUST be above the one hundred (100)-year flood level to be identified by the Builder. Windows The total area of window openings must be at least equal to 10.0 square meters (sqm) of the enclosed space being served (or better) to provide for natural ventilation and illumination. Windows MUST allow the entry of daylight even if closed. If firewalls are introduced, there shall be NO operable/ non-operable windows on such firewalls. However, fire-rated glass blocks or light and ventilation wells may be allowed on such firewalls, in full accordance with the NBCP and FCP, whichever is more stringent. D-5 D.2.4.3 The architectural quality of the Public Building/ Structure MUST be in full accordance with law, specifically with P.D. No. 1096 (1977 NBCP) and its 2004 Revised IRR, with the applicable portions of the 2000 ACP, and as described in the architectural sections of the Technical Specifications. architectural documents i.e. architectural perspectives, plans, designs, drawings, computations and like deliverables by the Builder MUST be in full compliance with R.A. No. 9266 (The Architecture Act of 2004) and its 2004 IRR, as well as with the applicable sections of the Development Guidelines and Design Guidance (DGDG) for the PROJECT. Windows must be of the transparent or translucent types, and both operable and/or fixed/ non-operable as applicable. Doors There shall be at least two (2) doors for every room/ enclosed space for thirty (30) or more occupants. - American Institute of Steel Construction (AISC), as applicable The window frames MUST be sturdy enough to withstand vandalism. D.2.4.4 A ramp MUST be provided with a maximum gradient of 1:12 in compliance with the Accessibility Law (B.P. Blg. 344) and properly labelled with the international symbol of access, either formed of concrete/ cement or metal. Suspended Ceiling and Ceiling Cavity The clear height of enclosed spaces, reckoned from FFL to finished ceiling line (FCL) MUST be at least 2.7 m. Maintenance access to the ceiling cavity (if provided) MUST be primarily through the passage-way (common area). The ceiling height of the toilets may be lower than 2.7 m, only for as long as the same still fully satisfies the minimum requirements under P.D. No. 1096, the 1977 NBCP. D-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.4.5 Roof and Roof Cavity The Builder’s choice of roofing material MUST be adequately protected from rust/ oxidation, salt air, acid rain or other sources and forms of corrosion and leaks. If of metal, the roofing sheets MUST be of the thickest material commercially available in the Philippines and amply protected from the elements. While the Procuring Agency shall undertake the requisite periodic maintenance regimen on an annual basis, the Builder MUST warrant the performance and condition of the entire roofing system and its adjunct drainage system and shall undertake the requisite repair/s within the minimum Constructor’s Liability period (reckoned from the Procuring Agency issuance of the Certificate of Completion) for any damage to the Public Building that may arise from faulty design or construction. D.2.4.6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.4.9 Artificial ventilation inside each room/ enclosed space MUST be supplied in full accordance with the NBCP and/or with the MCP, whichever is more stringent. D.2.4.10 Partitions, if introduced, MUST be fire-rated, and must be from the top of the structural floor to the bottom (soffit) of the upper floor suspended slab. D.2.4.7 D.2.4.8 D-7 Information Boards The Public Buildings MUST be provided with built-in information boards, of various types and materials, electronic or illuminated or non-electronic/ non-illuminated, of the appropriate widths, heights and thicknesses, with mounting heights and material and finish specifications as per applicable international standards. The roof cavity (if introduced) MUST be naturally ventilated and pest-proofed. Whenever applicable, the ceiling cavity for the regular floors (only if introduced), shall be naturally ventilated and pest-proofed. Grounds Development and Civil Works The land area enveloping the Public Building shall be treated as part of the Project since the same constitutes the building grounds in which pedestrian/ PWD access systems and the wastewater lines, roadways/ streets, drainage/ flood protection provisions and related civil works are situated above and below the surface respectively. These areas shall be cleared and made safe for use. Circulation and Emergency Egress: Corridors (Single-Load), Main Staircases, Service/ Emergency Egress Staircases, Fire Exit Ladders and Railings To fully comply with the FCP, the minimum passage-way (common area) clear width MUST be 2.44 m for the Public Buildings. All staircases MUST have a minimum clear flight width of 1.83 m (3.66 m total clear staircase width). The clear flight width for the service staircase/ emergency egress/ fire exit MUST be from 1.22 m to 1.83 m (2.44 or 3.66 m total clear staircase width). The fire exit ladders MUST have a minimum clear width of 0.80 m. All stair treads that shall get in contact with water MUST provide all weather traction, particularly if the treads are wet and shall have a sloped finished for easy drainage. The stair nosings shall be of sturdy metal and round-edged, or of better design, to prevent injury during egress occasioned by extreme/ emergency events. The staircase, corridor and ramp railings shall be of metal pipe construction and securely anchored to the staircase, hallway and ramp. Ventilation Natural ventilation shall be primarily supplied for some rooms (which are not artificially ventilated) through operable windows. However, whenever such windows are fully closed, the source of natural ventilation may be through fixed louvers above or beside the operable windows. The minimum horizontal clear length of eaves (only if introduced, including exterior gutter width) shall be: front = 2.438 meters (m); rear = 2.438 m; and sides = 1.829 m i.e. NO interior gutter shall be introduced in the Public Buildings. Maintenance access to the roof cavity (only if introduced) must be through the passage-way (common area). Partitions The ceiling (suspended ceiling, suspended slab soffit and stair slab soffit), if exposed shall be flat white while the roof, if of metal construction, MUST be colored light to maximize unwanted light and heat reflectance. The paints/ coloring materials MUST maintain their quality based on applicable Procuring Agency and/or DPWH standards for at least five (5) years. D.2.5 The civil works plan and design for the Project grounds MUST fully conform to the DPWH Standard Specifications for Public Works Structures, Volume III, 1995 (Blue Book). Structural Standards The structural design MUST be in accordance with P.D. No. 1096, the 1977 NBCP and its 2004 Revised IRR, and specifically with the latest edition of the National Structural Code of the Philippines (NSCP), Volume 1, 2010 (or later). Classification of Structure: In accordance with the NSCP, the Public Buildings/ Structures shall be designed for the classification, based on the nature of occupancy, of ‘Essential Facilities.’ Wind Load: The Public Buildings/ Structures, their roofing and walls shall be designed to withstand a minimum wind speed of 250.0 kilometers per hour (kph). Painting A Wind Importance Factor of 1.15, based on the NSCP, shall be used as generic reference. Where applicable, metal, wood, and plastic components MUST be coated with enamel paint, with color subject to Procuring Agency approval. Masonry wall components MUST be coated with latex paint, with topcoat color subject to official Procuring Agency approval. Seismic Load: The Public Buildings/ Structures shall be designed to withstand earthquakes for Seismic Zone 4 with a corresponding Seismic Zone Factor of 0.40, as specified in the NSCP. The structure should be fully sealed against rainwater intrusion during typhoons and heavy rains to protect sensitive materials and equipment. All doors and windows MUST be fully sealed against strong vertical and lateral rains. D-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures A Seismic Importance Factor of 1.50 shall be used as generic reference. Builders are advised to factor in the effect of the nearby fault lines. Live Loads: The minimum occupancy or live loads shown in Table D-1 shall be used in the design. Table D-1 D.2.6 Electrical Standards D.2.6.1 Roughing-ins - Service entrance conduit shall be made of intermediate metallic conduit (IMC). Underground runs shall be encased in concrete envelope or reinforced concrete envelope when crossing a roadway. Ends of conduits shall be provided with a sealing compound. Live Loads Structure Part Live Load General Activity Level Car Parking Level Shop Level - Exposed service entrance conduits shall be painted with epoxy primer in three (3) coats application. 1.9 kpa Toilets Hallways/ Stairs 4.8 kpa Deck Roof Level 1.0 kpa - Conduits shall be properly reamed. Note: kpa = kilopascals Design Life: The structure shall have a design life of at least fifty (50) years. Branch circuit conduits, boxes, fittings and supports shall run parallel to walls, columns and beams of the building. - Polyvinyl Chloride (PVC) solvent shall be applied on all PVC pipe joints/ connections. - End bells shall be used at the end of PVC pipes and locknut and bushing shall be used for metallic conduit on all boxes and gutters termination. Consistent with law and with industry practice, the Builder’s designers and builders shall assume the full professional responsibility and civil liability for the foundation and structural design, supervision and construction of the Public Buildings/ Structures. In the case of structural designers who are foreign nationals, the Philippine civil/ structural engineer affixing his/ her signature and dry seal on the structural plans, designs and computations (submitted for building permit application) shall solely assume the same. As such, the Procuring Agency shall NOT accept any form of waiver anent the attached professional responsibility or civil liability over the foundation/ structural design of the Project. Wall Vibration: Walls must NOT unduly vibrate due to impact caused by any part of an adult human body and must NEITHER be dented NOR punctured by deliberate punches or kicks by adult humans. Rib-type or double tee suspended slab soffits are acceptable but subject to the PCM or IC acceptance of the quality of their structural connections and finish. - The service entrance shall be at least 1.60 m above the natural grade line. - Metal boxes, gutters, supports and fittings shall be painted with epoxy primer in three (3) coats prior to installation. Building Foundation: The foundation shall be designed for an allowable soil bearing pressure of 96 kpa (2,000 pounds per square foot or psf). Consistent with best practices, the Builder MUST undertake the prior appropriate studies/ investigations for use as basis/ bases for the foundation and structural design of the Public Buildings/ Structures. Suspended Slabs as Sub-floors: Sub-floors shall only be of suspended concrete slabs (which are either cast-on-site/ cast in situ concrete or pre-cast concrete). Sub-floor materials that are highly flammable, that do NOT uphold the fire integrity among the floors, that may contain formaldehydes or other potentially harmful substances, that conducts/ transfers radiant heat and which do NOT possess positive acoustical properties are not considered the equivalent of a suspended concrete slab and must NOT be used for the Public Building/ Structure. Service Entrance D.2.6.2 - Branch circuit conduits shall be either metallic or non-metallic as applicable. Ceiling-mounted lighting fixtures: Flexible metallic tubing shall be used as drop pipe from a junction box to a lighting fixture. In-sight disconnecting means: Watertight type straight or angle connectors shall be used from pumps, condensing units and other equipment that will be in possible contact with water or rain. Centralized panelling: Breaker and wire gutter shall be used for proper arrangement of main distribution panel (MDP). Stub-out conduits for spares: 15 mm diameter PVC or IMC pipes shall be provided as stub-out conduits at different panel boards as per schedule of loads. Ends of stub-out conduits shall be threaded and capped. Wires and Wiring Devices Wires shall be properly designed in accordance with Article 3.10 and the grounding system shall conform to Article 2.50 of the PH Electrical Code (PEC). D.2.6.3 Wiring devices must be of modern type and approved for both location and purpose. Lighting and Fixtures Each room/ enclosed space must be provided with a lighting product(s) that can produce 400 lux or better at the tabletop/ countertop level. Duplex convenience outlets (COs) of the grounding type must be provided for all rooms/ enclosed spaces. D-9 D-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.7 The hallways must be provided with a lighting product(s) that can produce 5,000 lumens or better. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.9.1 For structural members, minimum compressive strength of 20.7 megapascals (mpa) (3,000 pounds per square inch or psi). Sanitary and Plumbing Standards For non-structural members minimum compressive strength of concrete shall be 17 mpa (2,500 psi). Waste and vent line piping system: The drain, waste and vent line piping system must be according to American Society for Testing and Materials (ASTM) D-2729, ISO 4435 and ISO 3633. At the very minimum, reinforcing bars shall be ASTM A706 with a minimum yield strength, fy, of 413 mpa for 16 mm diameter and larger, and 275 mpa (33,000 psi) for 12-mm diameter and smaller. Alternately, ASTM 615 can be used subject to the conditions specified in the NSCP, as follows: Waterline piping system: The system must be according to E DIN1988 for Polypropylene Random Copolymer (PP-R) type 3 pipe and ASTM A53/ A53M. The system must provide for a waterline service entrance. Plumbing Fixtures: These must be according to American National Standards Institute (ANSI)/ American Society of Mechanical Engineers (ASME), A112.19.4m, A112.19.3, A112.19.5. Drainage system: The storm drainage system must be sized according to the rainfall intensities, slope, and roof areas of the building. Provision shall be made for the future installation of rainwater collection system in compliance with R.A. No. 6716 ‘An Act Providing for the Construction of Water Wells, Rainwater Collectors, Development of Springs and Rehabilitation of Existing Water Wells in all Barangays in the Philippines’. For the BUILDING Project, only provision/s for connections to future rainwater collectors, consistent with DPWH design standards are required of the Builder. These provisions must be reflected in all CAEDs and DAEDs of the Public Buildings. D.2.8 Septic vault: All concrete septic tanks shall be protected from corrosion by coating with an approved bituminous coat or by other acceptable means. Toilets The Toilets shall be properly ventilated and provided with running water through a piped water supply system. The supply of running water to the toilets shall be the responsibility of the Builder. D.2.9 The specific types and numbers of fixtures shall depend on full Builder compliances with the applicable provisions of the NBCP and the Sanitation Code of the PH (and its IRR and with the pertinent issuances of the DoH), whichever is more stringent. Additionally, considerations of gender sensitivity e.g. breastfeeding stations, diaper changing stations, sanitary product dispensers, etc. shall be factored in. Materials At the very minimum, all construction materials for the Project MUST conform to the DPWH Standard Specifications for Public Works Structures, Volume III, 1995 (Blue Book). New materials which are NOT covered by the Blue Book, however, MUST pass the requirements of the Product Accreditation Scheme prescribed under DPWH Department Order No. 189, series of 2002, and be accredited by the DPWH before these are used in the Project. D-11 Reinforced Concrete D.2.9.2 D.2.9.3 The actual yield strength based on mill tests does NOT exceed fy by more than 125 mpa. The ratio of the actual tensile strength to the actual yield strength is NOT less than 1.25. Structural Steel This shall be ASTM A36 with a minimum yield strength, fy, 248 mpa (36,000 psi). All structural steel works shall be painted with red oxide primer and shall be final coated with aluminum silver paint. Protection from Heat Air Supply: Under applicable conditions, clean fresh air shall be supplied to enclosed spaces at an average rate of NOT less than 20 to 40 cubic meters (700 to 1400 cu.ft.) an hour per occupant, or at such a rate as to effect a complete change of air a number of times per hour varying from four (4) for sedentary occupants to eight (8) for active occupants. Where an adequate supply of fresh air cannot be obtained by natural ventilation or where it is difficult to get the desired amount of air at the center of the workroom without creating uncomfortable drafts near inlets, mechanical ventilation devices that are capable of generating fresh air (and NOT merely re-circulating air inside a room or other confined spaces such as toilets), shall be provided. Air Movement: The air movement in enclosed spaces shall be arranged such that the occupants are NOT subjected to objectionable drafts. The air velocity shall NOT fall below 15 meters per minute during the rainy season and 45 meters per minute during the summer season. The rooms and component materials MUST provide for a suitable inside room temperature compliant with safety and health standards on air temperature, humidity and air movement. Provision shall be made to control radiant heat from roofing by installing ceilings/ ceiling cavities, which may be provided with fire retardant and thermal insulation materials. Insulating material and ventilation inside a room should reduce infiltration of too much radiant and convective heat and should result in the room/ enclosed space temperature (measured at the center of the room) being at least one degree Celsius (1 oC) lower than the outside temperature. D-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The air velocity in enclosed rooms shall be from 0.25 m/s to 0.75 m/s based on the requirements of the Occupational Safety and Health Service/ OSHS of the Department of Labor and Employment (DoLE). D.2.9.4 D.2.9.5 D.2.9.6 D.2.9.7 Illumination falling at countertop height MUST NOT be less than 400 lux taken with combined artificial and natural lighting. Resistance to Termites Where applicable, the Public Building/ Structure MUST be resistant to termites for at least five (5) years. Protection from Corrosion Where applicable, the Public Building/ Structure MUST be protected from corrosion/ rust up to at least five (5) years. Fire Protection Fire protection requirements for the Public Building/ Structure shall mainly be as per R.A. No. 9514, the 2008 Fire Code of the Philippines (FCP) and its 2009 (or later) IRR. However, the Builder must always check which of the following is the most stringent: 1) P.D. No. 1096, the 1977 National Building Code of the Philippines (NBCP) and its 2004 Revised IRR; 2) R.A. No. 9514, the 2008 FCP and its 2009 IRR; 3) the National Fire Protection Association (NFPA) codes, standards or related issuances; or 4) other applicable local fire safety standards. The most stringent rule shall always be applied for the Project. Noise Level Limit The sound transmission class/ noise reduction rating of the Public Building and its component materials, including walls partition and floor slabs, MUST reduce noise level such that it will comply with accepted standards on noise reduction. Appropriate sound-absorbing or sound insulation material MUST be used on walls and partitions to reduce sound transmission inside the rooms/ enclosed spaces. Acoustic materials, finishes or treatments shall be used at interior walls, ceilings and ceiling cavities in the event of reverberation/ echoing of sound inside lower floor rooms/ enclosed spaces. Pertinent occupational safety and health standards such as the permissible noise exposure limit, threshold limit value and other applicable occupational and safety standards MUST be complied during the construction of the Public Building. Acoustic material or finish used should offer reduction of noise and noise level which should NOT exceed 55 dB (A) measured in an unoccupied classroom (to include ambient noise) and MUST comply with ASHRAE provisions on indoor air quality. Ambient noise MUST necessarily exclude intermittent heavy noise sources such as passing vehicles e.g. airplanes, trains, tricycles, old trucks/ buses and the like. D-13 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.9.8 Protection from Toxicity Enclosed spaces must be designed in such a way that their locations are far from sources of noxious elements such as paint, varnish, toilets, chemical storage and garbage collection/ storage/ handling points. The building and finishing material to be used like panel/ ceiling boards, paints, varnish, etc. must NOT contain or emit any carcinogenic or toxic substances which may pose risk on the health of occupants (such as asbestos, polychlorinated biphenyls/ PCB, benzene and the like). A material safety data sheet (MSDS) detailing the composition of the construction materials used, must be presented by the Builder for joint OSHC/ DPWH/ Procuring Agency/ PCM or IC evaluation and possible OSHS certification (on an absolute need basis). Newly constructed rooms should be well ventilated prior to occupancy to purge and remove the airborne contaminants trapped and emitted inside the rooms/ enclosed spaces during painting, sanding, varnishing, etc. Purging of airborne contaminants and ventilation of the rooms should be for at least one week or until such time that discernible odor is gone. There should be NO toxic airborne contaminants prior to building occupancy. Adequate air movement and supply of fresh air should be provided via natural or artificial means to dilute any contaminants, which may be emitted in the course of occupancy. The non-skid flooring should help prevent the accumulation of dust in small cracks and crevices. Based on US Environment Protection Agency Air Quality Standards, the dust concentration for total dust particulates should NOT exceed 0.26 mg/m3, and for respirable dust should NOT exceed 0.15 mg/ m3. Rule 1076.03 Cleanliness: Dusts, gases, vapors, or mists generated and released in work process shall be removed at the points of origin and NOT permitted to permeate the atmosphere of the enclosed rooms/ spaces. Rule 1093.07 Prevention of Dust Accumulation: In rooms where materials producing flammable dusts are processed, handled and stored; dusts shall be removed daily from floors, equipment and other horizontal surfaces, preferably by means of appropriate vacuum apparatus; and all fixtures, ledges, projections, bearings, sidewalks, ceilings and other parts shall be cleaned and freed of dusts at least once a week. Floors: Where practicable, floors or rooms in which harmful dust is liberated shall: be smooth, impervious and easy to clean; and NOT be covered with loose sheets, metal or other materials under which dust can accumulate. Resistance to water penetration: The structure shall be free from water leaks. Relative Humidity (RH) Range: RH range shall be at 55% plus or minus 5%. D-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.2.10 Other Standards The set of FFFE items MUST harmonize, in terms of functionality and design, with the intended use of the spaces at the Public Building (including the possible Property Development Component/s). D.2.11 FFFE materials may be wood or non-wood, resistant to termites (if of wood) for at least two (2) years, and protected from rust for at least for five (5) years. They should NOT contain or emit any carcinogenic or toxic substance. New materials must first be certified by the Bureau of Product Standards (BPS) of the Department of Trade and Industry (DTI). Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures D.3 Construction D.3.1 Scope of Construction D.3.2 The Builder shall undertake the Construction Works for the Contract Package as described in the Information Memorandum. Standards and Specifications for Construction The construction of the Project shall be implemented according to the DAED prepared by the Builder, as reviewed and concurred with by the Project or Construction Manager (PCM) or by the Independent Consultant (IC). Other Requirements b. The Construction of the Project shall also comply with the MPSS for Construction herein prescribed. The MPSS for Construction includes conformance to the provisions pertaining to building under the DPWH Blue Book, Volume III. Since the Builder will undertake Design-Build Services, the conduct of the soil investigations and of the requisite environmental investigations, MUST all be undertaken by the Builder on their account. The Blue Book prescribes, among other things, the material requirements and construction requirements for different items of work, including the tests to be conducted during Construction by the Builder. The Blue Book incorporates provisions of the ASTM and ACI, among others, pertaining to construction. Attention shall be given to the relevant items of work in the following Parts of the Blue Book: All conceptual through detailed architectural and engineering design (CAED to DAED) plans, designs, drawings/ details, schedules, specifications, bill of quantities (BoQ), detailed cost estimates (DCEs) and similar regulated professional practice documents must be signed and dry-sealed by Filipino registered and licensed professionals (RLPs) in full accordance with law e.g. only registered and licensed architects (RLAs) shall prepare, sign and seal the pertinent architectural documents. The ‘As-Built’ plans are to be transmitted to the Procuring Agency by the Builder at the completion of the construction work for the Project. During construction, the Project site must be protected by a 3.0 m tall temporary perimeter enclosure, where the height shall be reckoned from either the natural or finished grade line (NGL/ FGL). Such an enclosure should be of sturdy construction such that it does NOT constitute a danger during extreme events e.g. storms, earthquakes, fire, widespread civil disturbances, and similar occurrences. The Builder MUST provide a certification that the parts and spares for all components under the Contract Package shall be available to the Procuring Agency over a period of at least ten (10) years after the completion of the Works under the Project. D.3.3 Part A - Earthwork Part B – Plain and Reinforced Concrete Works Part C – Finishing Part D – Electrical (and Electronics) Part E – Sanitary/ Plumbing Works For materials and technologies NOT covered by the Blue Book, or if the Builder intends to use any new material/ technology which is NOT accredited by the DPWH Bureau of Research and Standards (BRS), the Builder shall submit a certification from a recognized foreign/ international institution to the effect that the new materials/ technology meets the Minimum Performance Standards and Specifications (MPSS) for this Project and that the new materials/ technologies have been successfully used in existing structures with proven integrity. Detailed Construction Plan The Builder shall prepare a Detailed Construction Plan (DCP) as part of the DAED that it shall submit to the PCM or IC for review and concurrence. The DCP shall be based on the preliminary Construction Plan submitted in the Technical Proposal of the Builder’s Bid, as updated and detailed to fit the elements of the DAED. The DCP MUST identify the procedures, processes and management systems that the Builder will apply to ensure the implementation of the Construction Works in accordance with the Agreement. As a minimum, the DCP must define the following: D-15 Construction organization and management structures for the Contract Package, identifying key personnel and positions, Constructors, and sub-constructors. D-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Construction methodology and procedures, including pre-fabrication if any. Quality control and assurance system for all Works. Construction schedule, milestones, and S-curve covering all Contract Package components and Project site. Major construction equipment and materials to be used. Health, safety, and security program in accordance with Department Order No. 13, series of 1998, of the Department of Labor and Employment (DoLE). Measures and procedures for: - Control and monitoring of the construction schedule as against actual construction works; - Supervision and monitoring of the quality control and assurance system for the Works, including the integrity of tests conducted; Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures - Survey and condition monitoring; Strategies for: Annexes for this MPSS follow. Very Important Notes: - Managing risks - Obtaining all necessary approvals and permits from national and local government authorities D.3.4 - Details of records management and indexing protocols that will enable referencing of all design and construction records to the Contract Package components, work type and location Test Requirements The Builder shall undertake tests during construction in accordance with the schedule of minimum testing requirements for items of work and materials covered by the Blue Book. D.3.5 If any new Construction materials proposed by the Builder are NOT covered by the Blue Book, these materials shall first pass the evaluation and accreditation system of the DPWH BRS, certified by the PCM or IC, and approved by the Procuring Agency, before the new materials are used in the Project. The completed Project can be safely and reliably placed into normal use and occupancy by the competent authorities and end-users. The Builder MUST submit (1) the As-Built Drawings, (2) an Asset Register to include a description of all assets constructed, and (3) the Construction Completion Report for the Project under the Contract Package, to the Procuring Agency NOT later than two (2) months after the issuance of the Certificate of Completion for the Project. - Monthly updating of the Construction Plan and monthly progress reports; - Development and approval of Construction documentation; and All parts of the Project have been completed in accordance with the DAED, as certified by the PCM or IC, and with the MPSS for Construction, including the rectification of all defects. This procurement effort involves both design preparation and construction delivery by the Builder being sought. The Builder is expected to prepare both its Conceptual Architectural and Engineering Design (CAED) and Detailed Architectural and Engineering Design (DAED) for the Public Building (the ‘Project’). In the event of a possible conflict or inconsistency between the content of these MPSS and its future Annexes or between such future MPSS Annexes, the Builder must bring the matter to the attention of the Procuring Agency and its Project or Construction Manager (PCM) or Independent Consultant (IC) at the soonest time possible. Further, for both bid preparation and design/ construction purposes, the Builder is instructed to always adopt the provision that shall result in the most appropriate, the most responsive and the most complete design/ construction/ operation/ maintenance solution that shall be consistent with the best local and international industry practices for design and construction. On matters of compliance with these MPSS and its future Annexes, the PCM or IC shall be the designated sole authority for design review, construction assessment and initial alternative dispute resolution (ADR) for design and construction issues arising from differing interpretations of the MPSS. Completion of Construction The IC shall be required to determine and certify that the Builder has fully complied with the following requirements for the completion of Construction and, if so, shall notify the Procuring Agency, which shall then issue the Certificate of Completion to the Builder in accordance with the Agreement: D-17 All Tests for Construction comply with the pertinent provisions of the Blue Book and other test requirements of the MPSS for Construction. D-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Contents Annex E Development Guidelines and Design Guidance (DGDG) for Buildings and their Sites / Grounds Important Note: This brief presents the potentially optimum development guidelines and design guidance (DGDG) allowed under existing national and local Philippine (PH) laws for the buildings and the properties/ sites/ grounds under consideration. Property Owners are at liberty to scale down the proposed development to the desired/ required/ affordable limit. This deliverable offers suggestions as to what to look for while reviewing the physical planning, design and development of various building and sites/ grounds project components. E.1 INTRODUCTION..................................................................................................................................... 1 E.1.1 INTENT OF THE DEVELOPMENT GUIDELINES ................................................................................... 1 E.1.2 DEVELOPMENT AND COMMUNITY PHILOSOPHY .............................................................................. 1 E.2 DEVELOPMENT GUIDELINES FOR PROPOSED BUILDINGS ............................................................... 2 E.2.1 LAND USE STANDARDS ........................................................................................................................ 2 E.2.2 GENERAL USE AND DEVELOPMENT GUIDELINES .............................................................................. 5 E.2.3 ROAD RIGHTS-OF-WAY (RROWS)/ STREETS AND LEGAL EASEMENTS .......................................... 8 E.2.4 MISCELLANEOUS GUIDELINES ............................................................................................................12 E.2.4.1 ADMINISTRATION ...............................................................................................................................13 E.2.4.2 UPDATE AND REVISION OF THESE DGDG (ON A NEED BASIS) ........................................................14 E.3 PHYSICAL PLANNING GUIDANCE........................................................................................................15 E.3.1 SITE DEVELOPMENT GUIDANCE ........................................................................................................15 E.3.2 CIVIL WORKS GUIDANCE ....................................................................................................................18 E.3.3 URBAN DESIGN GUIDANCE .................................................................................................................21 E.4 DESIGN/ POST-DESIGN GUIDANCE ....................................................................................................24 E.4.1 DETAILED DESIGN PROCESS...............................................................................................................24 E.4.2 POST-DESIGN PROCESS .......................................................................................................................28 E.4.3 ARCHITECTURAL GUIDANCE ..............................................................................................................28 E.4.4 SUGGESTED ARCHITECTURAL DESIGN OBJECTIVES........................................................................30 E.4.5 ARCHITECTURAL DESIGN CONCEPTS ................................................................................................31 E.4.6 SUGGESTED ARCHITECTURAL PLANNING AND DESIGN CRITERIA ................................................32 E.4.7 OTHER ARCHITECTURAL CONSIDERATIONS....................................................................................34 E.4.8 LANDSCAPE ARCHITECTURE GUIDANCE ..........................................................................................36 E.5 ENVIRONMENTAL GUIDANCE .............................................................................................................40 E.6 NON-MOBILE BILLBOARDS (NMBS)/ ELECTRONIC DISPLAYS AND SIGNAGES .............................59 E.6.1 REGULATION OF NMBS/ ELECTRONIC DISPLAYS WITHIN A LGU ..................................................63 E-i Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Tables, Figures and Equations Acronyms and Abbreviations Table E-1 Term Definition AFSU amenities/ facilities/ services/ utilities AI Architectural Interiors AMBF Allowable Maximum Building Footprint B.P. Batas Pambansa (State law) BHL Building Height Limit BoD Bureau of Design BOD Bio-Oxygen Demand Table E-2 Table E-3 Table E-4 Table E-5 Table E-6 Table E-7 Table E-8 Figure E-1 E-ii Setbacks for Commercial and Industrial Buildings (applicable to BUILDINGS)……..………………2 Reference Table of Maximum Allowable PSO, Maximum Allowable ISA, the MACA, the Minimum USA and the TOSL for a PUD ...............................................................................................................3 Minimum Requirements for Air Changes ...........................................................................................................6 Range of Required Sidewalk and Planting Strip Widths (total at both sides of RROW) by RROW Width ................................................................................................................................................................. 11 Minimum Planting Strip Widths by RROW Width ....................................................................................... 11 Example of the Application of the Basic Sustainable Development Controls under P.D. No. BOT Build-Operate-Transfer 1096 (NBCP) ................................................................................................................................................................. 51 CBB Wood-Wool Cement-Bonded Board CDMP Comprehensive Development Master Plan for a Typical Public Building .................................................................................................................................. 55 cum cubic meter DGDG Development Guidelines and Design Guidance DoE Department of Energy DoLE Department of Labor & Employment DPWH Department of Public Works & Highways EMoP Environmental Monitoring Program EMP Environmental Management Plan EMS Environmental Management Standards EPI Environmental Performance Indicators FCB Fiber Cement Board FCL Finished Ceiling Line FFL Finished Floor Line FGL Finished Grade Line FLAR floor to lot area ratio (same as FAR/ floor area ratio) GFA Gross Floor Area HLURB Housing and Land Use Regulatory Board IRR Implementing Rules And Regulations LGU Local Government Unit m meter mm millimeter MVB Maximum Volume of Building MDP Master Development Plan MPSS Minimum Performance Standards And Specifications Reviewer DPWH BoD NBCP National Building Code of the Philippines NGL Natural Grade Line NMB Non-Mobile Billboard OFB Outermost Face of Building OSR Open Space Requirement P.D. Presidential Decree PH Philippine/s Embodied Energy Levels of the Construction and Finishing Materials Specified and Used Initially Calculated Carbon Footprint for a Typical Low-Rise Public Building ............................... 58 STANDARD FORM (Type A0, A1, A2 and A3) FOR BUILDING PLANS/ CONSTRUCTION DRAWINGS Figure III.1.(of the 2004 Revised IRR of the 1977 NBCP) ............................................... 27 E-iii Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Glossary Term Definition ppm parts per million PPP Public-Private Partnership Term Definition PRC Professional Regulation Commission GFA PSO percentage of site occupancy PUD planned unit development The total floor space within the perimeter of the permanent external building walls (inclusive of the additional building/ enclosed area/s); areas such as open/ semi-covered parking, walks/ covered walks, courts, pools, ponds/ grotto, generator shed/ pump room/s and elevated platforms/ view decks do NOT form part of the GFA. RLA registered and licensed Architect impervious surface RLLA registered and licensed Landscape Architect A paved surface, usually just outside the building perimeter, that prevents surface water percolation i.e. the sinking of water into the ground or paved surfaces that do not have the capability to retard surface water flow, thereby contributing to flashfloods; RLECE registered and licensed Professional Electronics Engineer RROW RLEnP registered and licensed Environmental Planner RLPEE registered and licensed Professional Electrical Engineer The area existing between two (2) or more defined activity spaces that afford such areas direct pedestrian and vehicular access only; in particular, the RROW/ street shall consist of the sidewalk, the curb and gutter (where present), the carriageway and all of the other hard-scapes (including street furniture) and soft-scapes that may be initially introduced by the Owner on the property; RLPME registered and licensed Professional Mechanical Engineer street Same as road right-of-way (RROW); common term for RROW; RLSnE registered and licensed Sanitary Engineer PUD ROI return-on-investment ROW right-of-way SDP site development planning A planned unit development (PUD) refers to a land development scheme for a new project site wherein said project site must have a Comprehensive Development Master Plan (CDMP) or its acceptable equivalent i.e. a unitary development plan/ site plan that permits flexibility in planning/ urban design, building/ structure siting, complementarity of building types and land uses, usable open spaces for general public use services and business activities and the preservation of significant natural land features if feasible, whereby said CDMP must be duly approved by the LGU concerned; SPP Standards of Professional Practice (for State-registered and licensed architects/ RLAs in the PH) TGFA STS sewage treatment system SWMS solid waste management system sqm square meter The total floor space within a building (inclusive of extensions/ additions to such a building/ enclosed area) and auxiliary buildings; the TGFA consists of the GFA and all other enclosed/ partially enclosed support areas that are built up and/ or paved (with an impervious surface) together with all other usable horizontal areas/ surfaces above and below the finished grade line (FGL) that are all physically attached to such a building; areas such as open/ semi-covered parking, walks/ covered walks, courts, pools, ponds/ grotto, generator shed/ pump room/s and elevated platforms/ view decks all form part of the TGFA. sqmm square millimeter Urban Design TA transaction advisor TGFA total gross floor area The 2004 IRR of Republic Act (R.A.) No. 9266 (The Architecture Act of 2004) defines urban design as the physical and systematic design undertaken by a State-registered and licensed architect (RLA) on a community and urban plane, more comprehensive than, and an extension of the architecture of buildings, spaces between buildings, entourage, utilities and movement systems. Presently, this definition is the primary legal basis for interpreting the scope of urban design in the Philippines, even as it applies to projects in rural settings such as environmentally- sustainable developments. TLA total lot area TOSL total open space within lot WHO World Health Organization E-iv E-v Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.1 Introduction E.2 Development Guidelines for Proposed BUILDINGS E.1.1 Intent of the Development Guidelines E.2.1 Land Use Standards E.2.1.1 Development Standards The Department of Public Works and Highways (DPWH) Design Guidelines, Criteria and Standards (the “DGCS”) and its Volume 6 (Buildings and Related/ Other Documents) Annex [Development Guidelines and Design Guidance (the “DGDG”)] have been formulated for the following purposes: E.1.2 Further promote and protect the health, safety, comfort, convenience and general welfare of the Owners and the pre-identified users of the buildings for which the pertinent plans, designs and documents are to be reviewed by the DPWH BoD. Protect the character and stability of the development as a physically planned community and to promote an orderly and beneficial process of development/ redevelopment. Regulate the location, footprint, height, bulk, gross and total gross floor areas (GFA/ TGFA) and open space ratios of the planned buildings/ structures in order to diminish the potentially negative effects of these elements on overall/ general public safety, health and welfare. Protect and enhance the open spaces of the buildings in order to preserve the desired character and ecology of the development and its setting. Contribute to the process of decision-making in the implementation of the development plan/ effort. The DPWH BoD as Reviewer shall actively interpret and continually evolve (and improve upon) these DGDG, duly aided by qualified technical consultants (as needed), particularly on any question or possible uncertainty that may arise regarding these DGDG or of any other matters of importance to the well-being of BUILDING end-users. Development and Community Philosophy A BUILDING Project (the “Project”) shall provide the advantages of safety, community and a productive and uplifting environment. With integrated activity spaces as a BUILDING’s primary focus, the designers shall situate a BUILDING’s target public users within highly functional spaces on a setting of limited open spaces, hopefully attaining a high degree of integration of the natural and built environments. All activities and functions must promote the well-being of the individual end-users, and of the community as a whole, and must not be detrimental to a BUILDING’s intended utilitarian character. A balance between the needs and expectations of individuals and the community as a whole must be achieved and maintained. E-1 The applicable overall development standards must necessarily include the pertinent issuances of the PH National Government, NOT limited to certain physical planningrelated guidelines of P.D. No. 1096, otherwise known as the 1977 National Building Code of the Philippines (NBCP) and its 2004 Revised Implementing Rules and Regulations (IRR, effective 01 May 2005), local development-related ordinances, or even certain issuances of the Housing and Land Use Regulatory Board (HLURB) as may be applicable, and the like. E.2.1.2 Compliances with the applicable stipulations of the 1977 NBCP and its 2004 Revised IRR effective May 2005, the Referral Codes (RCs) of the NBCP (e.g. Fire/ Structural/ Electrical/ Mechanical/ Sanitation/ Architectural/ Water/ Sanitation Codes, the Accessibility Law, etc.), applicable ordinances of the host local government unit (LGU), which shall be applied suppletorily, and which should not be in conflict with (and should be more stringent than) the minimum development controls prescribed under the NBCP and its 2004 Revised IRR and RCs) and all other applicable laws are required for all architects, engineers, designers, developers, constructors, subconstructors, etc. who shall work on Project components on-site. Setbacks and Foot-printing within the Defined Building Sites Being parts of planned unit developments (PUDs), the footprints of BUILDINGS must be set at a specific minimum distance from the edge of their respective RROWs, as follows: Table E-1 Setbacks for Commercial and Industrial Buildings (applicable to BUILDINGS) Road Right-of-Way (RROW) Width (meters) Front (meters) Side (meters) Rear (meters) 30.0 and above 8.0 5.0 5.0 25.0 to 29.0 6.0 3.0 3.0 20.0 to 24.0 5.0 3.0 3.0 10.0 to 19.0 5.0 2.0 2.0 Below 10.0 (if introduced) 5.0 2.0 2.0 Source: Table VIII.3 of the 2004 Revised IRR of P.D. No. 1096/ 1977 NBCP The Open Space Requirement (OSR), otherwise referred to as the Percentage of Site Occupancy (PSO) or Allowable Maximum Building Footprint (AMBF) for buildings under the 2004 Revised IRR of the 1977 NBCP, that MUST be satisfied for BUILDING properties shall be at sixty percent (60.0%) of the total lot area (TLA). The applicable breakdown of the Total Open Space within Lot (TOSL) to be satisfied shall at maximum development be as follows: E-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table E-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Reference Table of Maximum Allowable PSO, Maximum Allowable ISA, the MACA, the Minimum USA and the TOSL for a PUD the NBCP), the maximum depth of the basement can then be made equal to onehalf (0.5) of the height of the building above grade; if the prescriptions for natural lighting and ventilation are satisfied, the basement depth can therefore be as much as one-third (0.33) of the combined height of the building to be constructed above grade and below grade. Building/ % of Total Lot Area (TLA) Structure Use or Occupancy Duly-Approved Zoning Maximum Maximum Minimum USA TOSL d (or Land Use) Allowable PSOAllowable ISAc (Unpaved Open (ISA + (examples only) (Paved Open Spaces) USA) Spaces) 70 PUD at an inland area close to an operating airport 10 20 30 70 PUD at a reclamation area close to an operating airport 15 15 30 - The center portion of all basement levels shall be reserved for the satisfaction of the basement level may extend by a minimum clear distance of 1.4 m from the outermost face of the building (OFB) at grade level. - The OFB at the second and lower basement levels shall follow the line of the OFB at grade level. Source: Table VIII.1 of the 2004 Revised IRR of P.D. No. 1096/ 1977 NBCP Additionally, there are applicable Angles/ Slopes emanating from the centerlines of the road rights-of-way (“RROWs” or “streets”) that limit architectural projections and that must be complied with to satisfy additional natural light and ventilation requirements along both the RROWs and the front yards of the proposed buildings at DPWH properties (reference Figure VII.G.1/ G.2 and Table VII.G.3 of the 2004 Revised IRR of P.D. No. 1096/ 1977 NBCP). E.2.1.3 The stated BHL excludes basement construction where legally and technically feasible. The NBCP does NOT prescribe a minimum number of basement structures, only that such basements not be under the RROW i.e. excluding below-grade crossings. Basement levels are NOT suggested for BUILDING sites on reclaimed land. In the event however that a Proponent suggests a basement level for a reclaimed BUILDING site, the applicable rules are as follows: Maximum Configuration of Basement Levels: While basements may be developed for medium to very high density mixed-use developments, BUILDING planning, design and construction shall observe the following limitations: - The minimum RROW width that services the lot on which the basement can be constructed should be at least 10.0 m wide. - For basements to be allowed, the prescribed setbacks and yards must be satisfied for the building/ structure above grade in as much as the very same setbacks shall apply below grade to determine the maximum depth or width of the basement level. - If the NBCP prescriptions for introducing natural light and ventilation into all basement levels are first satisfied (referencing Fig. VIII.G.23. of the 2004 IRR of E-3 Minimum Provisions for Natural Lighting and Ventilation at Basement Levels: If basements are to be developed, the following minimum provisions for natural light and ventilation shall be satisfied: - A primary or main natural light and ventilation shaft (vertical) with a clear distance of at least 3.0 m shall be located at the center of the building and shall traverse the entire combined height of the building above and below grade; (referencing Fig. VIII.G.23. of the 2004 IRR of the NBCP). - Secondary or support natural light and ventilation shaft/s (angular) with a clear distance of at least 1.2 m shall emanate from the front and rear perimeters of the building and shall traverse the entire depth of the basement; the angular shaft/s shall be at an angle of 60º from the horizontal, consistent with the maximum Philippine solar angle; separate angular shafts emanating from the side perimeters of the building are encouraged. Building Height Limit (BHL) and Basements As a BUILDING is usually part of a planned unit development (PUD) e.g. located at an inland area close to an operating airport, the maximum allowable height for a building/ structure on the property shall be from 3- to 25-storeys i.e. 10.0 m to 75.0 m (with CAAP-prescribed BHL as needed) as measured from the top/ finished surface of the average sidewalk elevation along the RROW/ street immediately fronting the BUILDING site, or as otherwise lawfully provided under Table VII.2 and related rules of the 2004 Revised IRR (effective 01 May 2005) of Presidential Decree (P.D.) No. 1096, otherwise known as the 1977 National Building Code of the Philippines (NBCP). - All drainage structures below grade shall not exceed the OFB below grade. E.2.1.4 - Both the vertical and angular shafts shall only be used for natural air and light intake and shall not be used for any form of exhaust or air exchange to keep the temperature inside the shafts at a minimum. Building Bulk The applicable Floor to Lot Area Ratio (FLAR) i.e. same as Floor Area Ratio (FAR) rights at maximum development (including the maximum building/ enclosed area additions) shall be at: 2.0 to 3.0 times the total lot areas (TLAs) for a building site i.e. if the development is classified exclusively as an institutional use. 6.0 to 18.0 times the total lot area (TLA) for the building site i.e. if the development is classified as part of a PUD at an inland area close to an operating airport. 6.0 times the total lot area (TLA) for the building site i.e. if the development is classified as part of a PUD at a reclamation area close to an operating airport (reference Table VII.G.1 of the 2004 Revised IRR of the NBCP) but these may still be adjusted through the proper representations with either the Local Building Official (BO) or the DPWH Secretary (in his capacity as the National Building Official/ NBO under P.D. No. 1096 (1977 NBCP), mainly if there can be potentially resultant hardship on the part of the Building Owner, considering the very high value of the properties (which must both yield a decent return). The applicable Gross Floor Area (GFA) and Total Gross Floor Area (TGFA) at maximum E-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.2.2 E.2.2.1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures development (including the maximum building/ enclosed area additions) shall arise from the utilized FLAR rights. be provided with a window or windows with an area not less than 1/20 of the floor area of such rooms, provided that such opening shall not be less than 240 sqmm. Such a window or windows shall open directly to a court, yard, public street or alley, or to an open watercourse. General Use and Development Guidelines The required windows may open into a roofed porch where the porch: Parking Provision Under the NBCP, the required parking for a public school development shall be as follows (for confirmation): E.2.2.2 E.2.2.3 The maneuvering area of buses shall be outside of the RROW i.e. within the property or lot lines only (reference Table VII.4 of the 2004 Revised IRR of the NBCP). There shall absolutely be no openings on/ at/ within/ through all types of abutments (such as firewalls) erected along property lines or along the edge of RROWs, except possibly for correctly positioned and properly/ duly-permitted vent wells. In locating window openings it should be borne in mind that in cases of extreme emergencies, windows must serve as emergency egress to vacate the premises or access for rescue operations. Such windows shall meet the following requirements: Rooms for human habitation - 6.0 sqm with a least dimension of 2.0 m; Kitchen - 3.0 sqm with a least dimension of 1.5 m; and Bath and toilet - 1.2 sqm with a least dimension of 900 mm. Minimum Air Spaces The minimum air spaces shall be provided as follows: School rooms - 3.0 cum with 1.0 sqm of floor area per person; E.2.2.6 These can be opened from the inside without the use of any tools; The minimum clear opening shall have a width not less than 820 mm and a height of 1.0 m The bottom of the opening should not be more than 820 mm from the floor; Where storm shutters, screens or iron grilles are used, these shall be provided with quick opening mechanism so that they can be readily opened from the inside for emergency egress and shall be so designed that when opened they will not drop to the ground All areas immediately outside a fire exit window/ grille must be free of obstacles and must lead to a direct access down into the ground or street level. 2.2.6. Artificial Ventilation Rooms or spaces housing heating equipment shall be provided with artificial means of ventilation to prevent excessive accumulation of hot and/or polluted air. Whenever artificial ventilation is required, the equipment shall be designed to meet the following minimum requirements in air changes as shown in Table E-3 hereafter. Table E-3 Workshop/ laboratory and offices - 12.0 cum of air space per person; and Habitable rooms - 14.0 cum of air space per person. Window Openings Rooms intended for any use, not provided with artificial ventilation system, shall be provided with a window or windows with a total free area of openings equal to at least 10% of the floor area of the room, provided that such opening shall be not less than 1.0 sqm. However, toilet and bath rooms, laundry rooms and similar rooms shall E-5 Minimum Sizes and Dimensions of Rooms E.2.2.5 Eaves, canopies, awnings (or media agua) over required windows shall not be less than 750 mm from the side and rear property lines. One off-RROW (off-street) passenger loading space that can accommodate two (2) queued jeepney/ shuttle slots; or two (2) queued bus slots whichever is applicable. Habitable rooms provided with artificial ventilation shall have ceiling heights not less than 2.4 m measured from the floor to the ceiling. The 2004 IRR of the NBCP further provides that for buildings of more than one (1) storey, the minimum ceiling height of the first storey shall be 2.7 m and that for the second storey, it shall be 2.4 m. The succeeding stories (above the 2nd storey) shall have an unobstructed typical headroom clearance of not less than 2.1 m above the finished floor. Enclosed spaces with natural ventilation shall have ceiling heights of not less than 2.7 m while mezzanine levels shall have a clear ceiling height of not less than 1.8 m above and below it. Has one of the longer sides at least 65% open and unobstructed Minimum Ceiling Heights at Buildings Has a ceiling height of not less than 2.7 m One (1) car slot for every 500.0 sqm of GFA or fraction thereof. The minimum sizes of rooms and their least horizontal dimensions shall be as follows: E.2.2.4 Abuts a court, yard, public street or alley, or open watercourse and other public open spaces Minimum Requirements for Air Changes Cubic Meter (CuM) Per Minute Per Person (examples) Air Changes Per Hour Ceiling Height (meters) Min. Max. 2.4 3.0 3.7 4.9 6.1 Cafeteria 0.43 0.57 6 4-½ 3-½ 2-½ 1-¾ Chapel 0.14 0.22 3 2 1-½ 1 ¾ Shop, Retail 0.22 0.29 3 2 1-½ 1 ¾ Office 0.29 0.43 4 3 2-¼ 1-½ 1 Cafeteria Kitchen 0.34 0.43 5 3-¾ 3 2 1-½ E-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Source: Table VIII.4 of the 2004 Revised IRR of P.D. No. 1096/ 1977 NBCP E.2.2.7 Utility meter centers shall not be obstructed or altered and the maintenance of utility meter centers shall be conducted by authorized personnel only. For other rooms or spaces not specifically covered in Table E-3, the applicable provisions of the pertinent referral code/s apply. Building Modifications No building/ structure shall be modified to the point where it detracts from the visual harmony of the schooling community. E.2.2.10 No lumber, metals or other bulk materials shall be kept, stored or allowed to accumulate on any part of the development except during limited/ permitted periods during construction or alteration. Additions and alterations shall only be in the same architectural style as the original building/ structure. Additional building materials and color, on the exterior face, shall be similar to the existing building/ structure. Roof slope and/ or parapet construction shall likewise match those at the pre-existing building/ structure. No machinery or equipment shall be stored or operated upon any part of the development unless necessary and customary for the ordinary use of the property or for limited construction or alteration work. All building modifications must be approved by the DPWH Administrator, including repainting, which must still comply with the prescribed/ original color scheme/s. Roof or gutters of building additions shall not be drained onto neighbouring parcels. E.2.2.8 Retaining walls (if provided) shall not be altered, demolished, or changed by building additions. Walls for building additions shall have proper structural foundation, such as cantilever footings or grade beams, independent from that of the retaining wall. Trash and Recycling No person, including any of the end-users and visitors, shall dump refuse on any part of the property, except in the designated areas for such material/ refuse. No weeds, rubbish, debris, objects or materials of any kind shall be placed or permitted to accumulate within the development. Garbage and recycling materials shall be placed in covered containers only, preferably out of public view. Waste shall be segregated by using separate trash containers for biodegradable and non-biodegradable trash. Trash collection and handling shall be conducted according to or higher than local standards and will be contracted by the Building Owner. Storage Front and optional side yard areas visible to the public shall not be used for storage of any form. Personal property shall be stored completely out of public view. DPWH-permitted additions and alterations to buildings/ structures shall strictly conform to the intent of these DGDG. Building additions (if and only if applicable) shall preferably not be constructed at the front yard area but shall be encouraged at the rear yards, provided no violations of the minimum standards prescribed under the 2004 Revised IRR of the NBCP are made. Groundwater wells shall preferably not be constructed within the development. Rainwater collection devices shall be preferably maintained but kept completely out of public view. E.2.3 Generator sets shall be pre-approved by the Building Designers before any installation commences. The appropriate pollution control or mitigation devices should be provided i.e. noise and air pollutants, etc. Road Rights-of-Way (RROWs)/ Streets and Legal Easements Within the BUILDING sites, the generated RROWs shall constitute the primary free access zone i.e. where all users (pedestrians and vehicles) may pass for ingress/ egress purposes (intra-property and extra-property movements/ circulation). The RROW is essentially made up of three (3) parts i.e. the carriageway (or roadway) on which vehicles pass, and which usually take up to 2/3 of the RROW width, the sidewalk on which pedestrians pass, and which usually take up to 1/3 of the RROW width, and the curb and gutter assembly, which acts as the transition between the carriageway (at a lower surface elevation) and the sidewalk (at a higher surface elevation). The RROW/ street areas extend throughout all the three (3) identifiable physical development levels of the RROW i.e. grade (street) level, below grade (under the surface of the street) and above grade (above the surface of the street), more properly defined as follows: Composting of contained and inoffensive kitchen and yard waste is encouraged only if space can be made available. Approved composting devices shall be maintained completely out of public view e.g. at the well-ventilated green roof (if introduced). E.2.2.9 The burning of trash and refuse is absolutely prohibited under law. Utilities To avoid interference with utility and wastewater lines and surface water drainage, future excavations onsite shall not exceed 0.30 m in depth. E-7 RROW ABOVE GRADE - refers to the portion of the RROW reckoned from the finished surface of the carriageway and/or the sidewalk/ arcade all the way up to the air; if this level of the RROW is utilized for whatever purpose, it is the air rights that come into play; the minimum clear height for the utilization of air rights above RROW shall be 4.27 m from the finished crown elevation of the carriageway; RROW AT GRADE - refers to the portion of the RROW reckoned from the natural grade line (NGL) up to the finished surface of the carriageway and/ or the sidewalk/ arcade; this portion of the RROW is generally utilized for the movement of the general public (motorists and pedestrians alike); and E-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.2.3.1 RROW BELOW GRADE - refers to the portion of the RROW reckoned from the finished surface of the carriageway and/or the sidewalk all the way down into the ground. Allowed or Encouraged Structures/ Developments Within the RROW/ Street Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.2.3.3 E.2.3.2 Vehicular transportation and ambulant pedestrian-related structures and like uses whether temporary or permanent e.g. Carriageway, sidewalk, street furniture such as waiting sheds, traffic outposts, streetlamps/ signages and their support structures, barriers, planterboxes and the like; Limited commercial structures/ uses above grade (RROW air rights utilization) or below grade, provided that these are ancillary or supplementary/ complementary to the transportation/ pedestrian-related structures/uses allowed in the previous paragraph, and the like; Improvements on the RROW and on all building components/ elements found at all building physical levels e.g. Sidewalks, carriageway, arcades and medians (only if introduced), planting strips, street furniture, elevated or underground crossings or access-ways, and the like; and Utility/ service structures/uses (power, water, drainage, sewerage, telecommunications, gas, etc.) at all physical levels of the RROW provided that these do not restrict nor impede the movement of people and vehicles and provided further that the rights to utilize the portions of the RROW are properly secured and permitted by the Building Administrator. Disallowed or Prohibited Structures/ Developments at the RROW/ Street The RROW is part of the public domain within a building site, which should be equally enjoyed by all end-users; as such, the RROW is not to be used for the following types of buildings/ structures/ occupancies or others similar to them: E-9 Any form of semi-permanent/ permanent or semi-enclosed/ enclosed commercial structure/ use and like structures/uses not specifically permitted by the Building Administrator. Any form of temporary, semi-permanent/ permanent or semi-enclosed/ enclosed residential structure/use and like structures/uses not specifically permitted by the Building Administrator. Long-term or overnight vehicle parking i.e. Unless duly permitted by the Building Administrator. As a depository of stalled or abandoned vehicles, mechanical devices and the like, which shall be removed upon instruction by the Building Administrator. The conduct of non-institutional activities deemed incompatible with the character of the RROW and of the building site. Unauthorized recreational or entertainment usage and the like which will only benefit certain entities and which will ultimately result in inconvenience/ nuisance/ safety problems to the other end-users, nor Preservation of View Corridors and/or Sight Lines The RROW at all BUILDING physical levels may only be used for the following types of structures/ uses or others similar to them, to wit: E.2.3.4 Any other form of private use, gain, enjoyment or profit at the expense of the motoring or walking public. The carriageway/ roadway portion of the RROW shall be free of structures, particularly from commercial signs that will impede the view corridor and sight lines within the RROW. View corridors or sight lines from buildings/ structures on a higher or lower lot shall not be entirely blocked by the intervening buildings to allow sight lines to exist. In case of allowed structures within the RROW for transportation or ambulant mobility e.g. elevated or ramped crossings/ overpass and the like, the appropriate designs shall be adopted to maximize light, ventilation and view. Sidewalks Subject to existing laws and regulations, the local planning authority shall be optionally consulted in the determination as to which RROW/ street (particularly at the building site perimeters) shall have an open sidewalk or an arcaded (or covered) sidewalk, or a combination of both. The minimum width of the sidewalk for a RROW width of 9.0 m or more shall be 1.2 m on each side of the RROW or a total of 2.4 m on both sides of the RROW. For the minimum width of sidewalk for RROW of less than 9.0 m wide (if introduced), reference Table VIII.G.3 of Rule VIII of the 2004 IRR of the 1977 NBCP. Sidewalk widths shall be based on the following considerations: Volume of pedestrians (regular/ periodic end-users, visitors and the like) who will use the sidewalks. Type, intensity or level of operation and size/ expanse of the allowed uses/ occupancies along the RROW. Types and volume of street furniture e.g. street lighting and traffic signs/ signal supports, pedestrian barriers/ aids, etc., and other urban design elements that will be allowed as permanent fixtures within the width of the sidewalk. Width of the planting strips (if introduced). Spatial needs for placements of utility/ service lines underneath the sidewalk and for utility/service poles. Compliance with accessibility requirements as stipulated under Batas Pambansa (B.P.) Blg. 344 (Accessibility Law). Provisions for commuters e.g. waiting sheds, loading/ unloading areas (as introduced) and the like. Provisions for vehicle crossings/ driveways between the carriageway and the front yards of buildings/ structures or provisions for loading/ unloading platforms (if allowed/ needed). Need for introduction of allowed uses/ elements within the sidewalk area only if there is sufficient sidewalk width e.g. bicycle lanes, jogging lanes and the like. E-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Climate, light, ventilation, safety, security and overall maintenance of the sidewalk and all BUILDING surface areas. a separating strip between the arcaded portion and the open portion of the sidewalk (reference is also made to Figure VIII.G.16. of the 2004 Revised IRR of the 1977 NBCP). Sidewalks shall be of uniform width throughout the entire length of the RROW/ street. The sidewalk width grade and finish of the dominant use/ occupancy along the RROW shall be generally observed. Grade of Sidewalks The width of the sidewalk shall be as follows: Table E-4 Range of Required Sidewalk and Planting Strip Widths (total at both sides of RROW) by RROW Width Road Right-of-Way (RROW) Width Range of Required Sidewalk Widths (total at both sides of the RROW) 30.0 m and above from 1/6 up to 1/4 of RROW width 25.0 - 29.0 m from 1/6 up to 1/3 of RROW width 20.0 - 24.0 m from 1/6 up to 1/3 of RROW width 10.0 - 19.0 m from 1/4 up to 1/3 of RROW width Below 10.0 m from 1/4 up to 1/3 of RROW width Source: Table VIII.G.4 of Rule VIII of the 2004 Revised IRR of P.D. No. 1096/ 1977 NBCP The width of the sidewalk shall include both the paved and unpaved (and possibly planted) portions. (Refer Table E-5). Table E-5 Minimum Planting Strip Widths by RROW Width Road Right-of-Way (RROW) Width Total Minimum Widths of Planting Strip within RROW (width per sides of the RROW in meters) 30.0 m & above 1.2 (0.6) 25.0 - 29.0 m 0.6 (0.3) 20.0 - 24.0 m 0.6 (0.3) 10.0 - 19.0 m 0.4 (0.2) Below 10.0 m Optional Source: Table VIII.G.5 of Rule VIII of the 2004 Revised IRR of P.D. No. 1096/ 1977 NBCP For allowed, disallowed and prohibited structures/ developments within the RROW, refer to Sections 3.1 and 3.2 of these DGDG. The sidewalk pavement shall have a non-slip surface and shall slope down from the building line towards the curb line at not more than 1/50 and shall level off with the curb (reference is also made to Figure VIII.G.14. of the 2004 Revised IRR of the 1977 NBCP). Sidewalks of 2.0 m or more in width shall include a planting strip of not less than 800 mm in width up to a maximum of 1/3 of the allowed sidewalk width, separating the curb from the sidewalk pavement. For wider RROWs (where vehicle speeds are faster), the planting strip must always be near the curbline to protect the ambulant pedestrian (reference is also made to Figure VIII.G.15. of the 2004 Revised IRR of the 1977 NBCP). Combined open and arcaded sidewalks shall be provided with a planting strip of not less than 800 mm in width up to a maximum of 1/3 of the allowed sidewalk width, as E-11 E.2.4 Sidewalks shall, as much as possible, be level and of uniform grade throughout the entire length of the RROW/ street. Whenever the slope of the street does not exceed 1/12 the sidewalk grade shall follow the level or slope of the RROW/ street (reference is also made to Figure VIII.G.17. of the 2004 Revised IRR of the 1977 NBCP). Whenever the slope of the street is 1/10, the sidewalk shall be maintained level for every 20.0 to 40.0 m of run (reference is also made to Figure VIII.G.18. of the 2004 Revised IRR of the 1977 NBCP). Sidewalks of different levels shall be joined by means of a ramp having any convenient slope not exceeding 1/6 (reference is also made to Figure VIII.G.18. of the 2004 Revised IRR of the 1977 NBCP). When the grade of two (2) connecting sidewalks are between 1/10 and 1/8, the 2 sidewalks shall be joined by means of a ramp having any convenient slope not exceeding 1/10. No BUILDING/ structure shall be constructed unless it adjoins or has direct access to a public space, yard or RROW/ street on at least one (1) of BUILDING sides. All BUILDINGS/ structures shall face a RROW/ street which has been duly approved by the proper authorities. Miscellaneous Guidelines No activities in the designated front yard areas (including porches and decks if introduced) shall compromise or detract from the decidedly institutional character of the development. The Building Administration shall be primarily responsible for creating a list of specifically prohibited activities. Unless specifically permitted, restricted and monitored by the Building Administration, no business or commercial activity shall be conducted within the BUILDING sites, particularly if such activity will result in or involve exterior advertising (i.e. signs, non-mobile billboards/ NMBs/ electronic displays/ mobile billboards mounted on vehicles, etc.), increased traffic or parking, significant deliveries and/ or shipments or external storage of commercial goods. Dangerous, noxious, and offensive activities are absolutely prohibited within the BUILDING sites. Activities causing unreasonable or continuing annoyance or nuisance to the BUILDING end-users are similarly prohibited. The Building Administration shall define these. Unless forming part of carefully considered and proposed engineering interventions, changes to the artificial/ future surface water drainage patterns on-site are prohibited. Adjacent properties shall be protected from surface run-off from the building site. Drainage of site and structure run-off shall be directed to the nearest RROW/ street or other appropriate channeling/ discharge/ collection devices. All grounds surrounding buildings and structures shall be maintained in such a manner as to prevent or minimize the risk of fire and other dangers to the BUILDING E-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures sites, as well as the neighboring parcels. This includes landscaping maintenance, including tree-trimming, removal of dry or high grass and removal of dead tree limbs. observer. The Building Administrator shall develop procedures for such required dispute resolutions in full accordance with R.A. No. 9285 (The Alternative Dispute Resolution Act of 2004) and its IRR. Should such a process fail, the Building Administrator shall then officially endorse the dispute to the concerned purok/ sitio and barangay having jurisdiction over the BUILDING sites, for additional mediation. Respect the Rights of Others. All end-users and visitors are enjoined to fully respect other entities’ rights to enjoy and to make full use of public amenities by using common courtesy and good judgment at all times. Landscaping Treatment and Maintenance. The Building Administrator shall be responsible for the maintenance of all landscaping elements onsite, including vegetation, paving, decorative items, fountains, etc. No person shall remove any landscaping element nor add any element to the designated public/ common areas, unless permitted by the Building Administrator. Parking and Vehicles. Parking on any designated on-street parking areas is permitted only during operating hours. Parking in landscaped or other areas not intended for vehicle use is absolutely prohibited. Vehicles violating parking requirements will be subject to immediate towing at the vehicle owner's expense. Washing, maintenance, and repair of motor vehicles are prohibited onsite. Animals and Pets. Household pets (dogs, cats, etc.) may be allowed onsite subject to control by their owner. Owners must clean up after their pets. Pet owners shall be liable to other end-users and visitors of the building for any harm and/ or damage to persons or property caused by pets. E.2.4.2 Penalties and Fine System for Violation/s of These DGDG: The Building Administrator shall formulate a system of notifying, charging and collecting fines for violations of these DGDG or for the assignment of penalties (including waiver of rights to access to and/or use of facilities onsite) for continued or repeated violations of these DGDG. Update and Revision of These DGDG (on a Need Basis) The Building Administrator may periodically update and revise these DGDG on an absolute need basis. Thereafter, sufficient notices shall be furnished all parties concerned before the updated/ revised DGDG can take effect. Firearms and Weapons. No firearms or other weapons (including dangerous recreational items such as real bow and arrows) shall be used or brought onsite except by authorized law officers, which includes the BUILDING’s security services. Utilities. The Building Owner shall be responsible for maintaining or contracting for the maintenance of all utilities and utility structures and facilities. No public access shall be provided or allowed to any utility structure or facility. Access to Public Facilities. All end-users and visitors must present a valid identification card or similar device for entry and use of designated common facilities wherever controlled access is enforced. A limited number of guests (to be determined by the Building Administrator or facility management) may use the common facilities if accompanied by an authorized entity. Hours of Operation and Use. The Building Administrator shall determine the hours for use of the public facilities onsite. Use of these facilities during non-operating hours is prohibited. Facility-Specific Rules. Particular public facilities onsite e.g. chapel (if introduced), etc. may develop rules specific to their use and operation. These rules shall be posted in full public view and shall be considered part of the DGDG. The Building Administrator shall approve such rules and any future amendments. E.2.4.1 Personal Items. All end-users and visitors shall remove all personal belongings when leaving the designated public areas onsite. Administration Dispute Resolution Among End-users and Visitors: The Building Administrator shall serve as either a conciliatory or mediating body to settle onsite disputes. In a conciliation mode, the Building Administrator shall actively participate in seeking a resolution to the dispute. In a mediation mode, the Building Administrator shall allow the parties to resolve the dispute and simply act as a facilitator, recorder and E-13 E-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Physical Planning Guidance These guidance for physical planners, designers, constructors and developers define the type and intensity of land use for public school developments such as those envisioned for the BUILDING sites. These are meant to be the minimum requirements such that the expected standard is met. The BUILDING’s technical team will have to define their specific goals, or development characteristics, in each particular case, in accordance with their expectations and development strategies. However, the resulting specifications should never go below the minimum standards under these physical planning and design guidance. E.3.1 E.3.1.1 Nevertheless, and in order not to restrain, or even prevent possible creative or innovative inputs by the physical planners/ designers, the guidance is not to be taken as rigid rules, but rather as having a considerable degree of latitude and allowing interpretation and adjustment to specific situations and site conditions, which must all be fully compliant with the dictates of law. It will be up to the physical planning/ design authority to ascertain the adequacy, acceptability or even quality of the particular proposals assuming the same depart from the base criteria/ considerations. E.3.1.3 Site Development Guidance Site development planning (SDP) and design standards must be institutionalized, as described in the succeeding sections. Guidance that are applicable to proposed public school facility planning as well as to general developments and to environmentallysensitive areas help ensure a functional, safe and attractive environment for the building and grounds’ end-users and visitors. E.3.1.4 Site Development Standards There are several types of specific standards that are applicable to the controlled development of institutional facilities. These standards typically include: E.3.1.2 Development density Building height Building setbacks from amenity features, rows and other buildings/ structures Floor to lot area ratio (FLAR) Site coverage i.e. Percentage of site occupancy (PSO) by buildings and other structures Parking requirements Other requirements, such as those for landscaping and open space, public access to amenity features, signs and utility lines. Establishing Site Development Guidelines The exact requirements for the site development guidelines shall vary depending on the intended character of the public school development and on the environmental situation, although there is a generally accepted range of requirements. E.3.1.5 Site Coverage: the percentage of the site area that may be occupied by buildings/ structures at ground level (referred to as the PSO under the 2004 Revised IRR of the 1977 NBCP which took effect 01 May 2005). Building Height: measured both in numbers of storeys and height in meters (m) and related to location, existing built environment and natural features; further restrictions are imposed on the proportion of building volume that may reach the maximum height expressed as a percentage of the total building floor area (referred to as Maximum Volume of Building/ MVB and partly referred to under Floor to Lot Area Ratio or FLAR under the 2004 Revised IRR of the 1977 NBCP); this regulation is partly intended to promote variety in the building volumes. Car Parking: reference the minimum parking regulations under the 2004 Revised IRR of the 1977 NBCP for mixed-use developments or for specific building occupancies forming such developments. Setbacks and Easements: reference the provisions of both the 1949 (1954) New Civil Code and the 1977 NBCP and its 2004 Revised IRR. Density Density refers to the number of end-users or buildings/ structures per hectare (ha.), which determines to a great extent the overall character of the development. Building Heights The maximum allowable heights of buildings greatly influence the character of an institutional development due to the visibility of taller buildings. If a very natural site appearance is desired, the BUILDINGS could be limited to three (4) or even up to five (5) fully functional levels, combined with larger building footprints coupled with generous open space and landscaping. Taller buildings will create a more urban character of development, although, if combined with ample open space and landscaping, taller buildings can be widely acceptable in a high density institutional environment (and possibly even on reclaimed land, if not for cost and ROI considerations). The BUILDINGS shall require elevators to move large numbers of passengers and heavy/ very heavy furniture and equipment, which entails additional costs for installation and maintenance. Building Setbacks The setbacks or minimum distances required of main buildings from amenity features, RROWs and other buildings, are important to maintain a sense of openness and sufficient space for landscaping, privacy of building occupants, and in some cases for safety and security reasons. Adequate setbacks are particularly necessary for several reasons: Protection of buildings and their foundations from any perceivable damage. Allowance of adequate space from the RROW for public access and recreational use by end-users/ visitors. Key Planning Factors: E-15 E-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.3.1.6 E.3.1.7 E.3.1.8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Floor to Lot Area Ratio (FLAR) Floor Area Ratio (FAR), also referred to as the Floor to Lot Area Ratio (FLAR) under the 2004 Revised IRR of the NBCP, is a measure of the intensity of development, and refers to the ratio between the total floor area of all storeys/ levels of all the buildings and the total site area of the DPWH properties (or total lot area/ TLA in the case of individual buildings). The FLAR is calculated by dividing the generated gross floor area (GFA) by the area of the site (or of the individual lot) and is expressed as a percentage (%). E.3.1.10 Site Coverage The site coverage by buildings and structures, also referred to as the PSO under the 2004 IRR of the 1977 NBCP, is likewise indicated as a percentage (%), and is an important development control on the amount of impervious surface limit i.e. not penetrable by surface/ rain water, landscaped areas and open space within the development. E.3.1.11 Provisions in full accordance with the 2004 IRR of the 1977 NBCP should be made for sufficient off-street parking to handle all vehicles, including parking/ layover/ waiting spaces for staff/ end-users/ visitors at the defined peak period use, so that the RROWs/ streets shall not become congested with parked/ waiting/ queued vehicles. A special provision for larger spaces may need to be made for the parking of special vehicles/ conveyances. The specific requirements for off-street parking will vary greatly, depending on the location, building type and intended occupancies/ usage of the component developments onsite. E.3.1.9 A green roof may be introduced atop the BUILDINGS (if provided with deck roof levels) to replace the natural ground/ vegetation lost to building footprinting. Such a green roof may be a combination of hardscaping i.e. walks, paths, squares, railings, barriers, landscaping furniture, lighting, plant/ soil and water holders/ structures/ E-17 E.3.1.12 Landscaping and Green Roof In addition to the site coverage requirement, it is common practice to also require that a minimum amount of landscaping be developed (including any naturally-occurring vegetation onsite, as may be applicable), and that landscaping be provided in otherwise unattractive spaces, including large parking areas, alongside RROWs and around utility buildings and structures, in order to screen these from view. The minimum landscaping requirement may also be expressed as a percentage (%) of total site area. Public Access Adequate public access should be provided at amenity features and public facilities. In addition to incorporating public access in the respective master development plans (MDPs), these can be generally required by regulation, such as the introduction of public access points to a suitable section set apart at regular distances e.g. approximately every one thousand meters (1,000.0 m) as a possible maximum in a developed area. Sign Controls Large, unattractive, and inappropriately located signs, whether commercial or directional, can greatly detract from the appearance/ character of the BUILDING developments. Sign control standards should be established with respect to their type, location, size, materials used and lighting. Often, an approach applied is not to allow any outdoor advertising signs onsite, but only well-designed identification and directional signs constructed of materials that are compatible with the environment and that can be discretely lighted at night. Off-street Parking For some BUILDING areas, it may be difficult to precisely project parking requirements, and in fact these requirements may change over time. In these situations, provision can be made for possible future parking needs by allowing for vertical parking expansion in appropriate locations, but initially landscaping these as part of the interim/ initial open space until such time as these may actually be needed. In this manner, an excessively large area is not reserved for parking lot development, but sufficient parking spaces will be made available for possible future use. Parking areas of any type should be well landscaped and must fit into the overall environment of the intended development. containers, and the like plus softscaping i.e. soil, water, vegetation, trees and the like. A portion of the green roof may be assigned for composting to create fresh garden soil or for activities such as vermiculture, hydrophonics within or near a mini-greenhouse setting. The bulk of the created spaces at the green roof may serve a variety of social functions and amenity-related uses. E.3.2 In the event that the DPWH officially permits the mounting of non-mobile billboards (NMBs)/ electronic displays on any of the sides of the BUILDING’s exterior surfaces, these must be fully compliant with the latest valid and subsisting issuances of the DPWH and its NBO, particularly on the sizing and mounting of such NMBs at any point or elevation onsite as well as the satisfaction of the minimum requirements for natural light and ventilation both inside and outside the BUILDING (refer to Section 6. of this DGDG). Underground Utility Lines Overhead electric and telephone lines and their supporting poles are unattractive elements and disturb views in any environment. Although very high voltage electric lines are difficult to place underground (particularly at reclaimed areas that still need to settle over time), the lower voltage distribution lines can still be located economically underground. Placing utility lines under the natural ground line (NGL) is initially more expensive but because of lower maintenance costs, may be no more costly over the long term than overhead lines. In areas prone to occasional high winds that can topple utility poles and lines (or trees over the lines), underground i.e. below NGL lines offers additional safety and maintenance advantages. Civil Works Guidance As with the other plan/ design disciplines, climatic characteristics establish the basic factors that need to be taken into account in terms of building grounds and RROW features related to access and drainage plans/ designs for public school buildings/ grounds sited in a hot-humid tropical climate such as that found in the Philippines E-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures (PH). Image should also evolve in the planning stage as a consequence of the physical and market analyses as each site is unique and hence should be allowed to name and evolve its own character and image. The building grounds should be developed to enable all types of end-users to move around freely and safely. This requires the removal or treatment of site hazards e.g. abrupt changes in ground elevation, presence of large amounts of running or surface water, sharp rocks or geologic formations, soft soil and the like. Natural lighting and ventilation within the grounds and the RROWs, if present/ provided, are requirements to be fully satisfied but it is equally important to introduce provisions that protect all end-users from excessive sun, light and heat. The use of the correct surface colour and texture selection for construction and finishing materials to balance reflected light and heat is a must. The use of paving materials that allow surface water percolation is highly encouraged e.g. porous/ welldrained asphalt mixes, smooth stones, paver blocks/ tiles on sand bedding and the like, except in areas directly above basements. When choosing between asphalt and concrete pavement, the light and heat absorption or reflection properties (and ambient heat generated by the material), surface traction and surface water percolation should become key factors for material choice. Asphalt pavement if properly founded and well-drained can last up to three (3) decades without need for major repair, especially for inland locations. All developments should be sufficiently drained to prevent a host of sanitation/ health-related problems, particularly where stagnant water can be found. Only properly sized, connected and sloped drainage and sewerage lines must be in place. E.3.2.1 E.3.2.2 If at all possible, all developments must never interfere with the normal movement of water/ hydraulics in and around the Project site. Intervention is however encouraged if damage is caused to the land by excessive water movements e.g. scouring and erosion. E.3.2.3 E.3.2.4 E.3.2.5 E.3.2.6 General Engineering Guidelines Engineering design standards for the Project area should be evolved and established to ensure that at least minimum infrastructure and construction requirements are met in designated development areas. In less-developed countries or regions where these standards have not yet been adopted or exist but are considered unsuitable, international standards or those of a more developed country can be adopted, adapted (modified or customized) and/ or applied. The basic types of engineering standards are reviewed in the following sections. E.3.2.7 Road Rights-of-Way (RROW) For inland sites, various categories of RROWs are established based on projected traffic usage, as well as respective RROW widths and related drainage-ways, walkways, and landscaping requirements determined. Cross-sections of these various types of roadways are drawn, and construction and materials specifications are generally written in conformity to accepted international standards. E-19 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.3.2.8 Drainage In addition to the drainage associated with RROWs, the specifications for other types of drainage-ways, such as for various sizes of culverts and canals, are to be established. Water Supply Water supply quality standards are evolved and established based on either local standards, if they are acceptable, or on international standards such as those set by the World Health Organization (WHO). The source of water supply will of course depend on local conditions, but standards should be established for the amount of water required for various activities within an institutional development, the quality level of the water, water pressure to be maintained, and the specifications of the distribution system. Water supply standards should include provisions for fire protection and water conservation techniques. Electric Power The source of electric power will also vary from place to place, but standards can be evolved and established for the amount of power to be available, based on projected demand, reliability of supply, consistency of voltage, and the specifications for installation of the distribution system. Any possibilities for utilizing energy conservation techniques such as solar heating/ power generation should be applied as much as possible. Sewage Disposal The type of sewage disposal system will depend on the scale of development and local conditions, and may range from the use of septic tanks to large integrated sewage collection and treatment systems e.g. centralized sewage treatment plan (STP), although portable compartmentalized STP units are already available in the PH market. Standards should be evolved and established with respect to the degree of treatment required - primary, secondary, or tertiary - and the disposal technique of effluent, based on preventing any pollution. Investigation should be made as to the potential for recycling sewage effluent, especially in water-deficient areas, for use as landscaping irrigation water or other domestic or even possible potable use. Solid Waste Disposal The type of solid waste disposal will also vary, depending on the local situation, but standards should likewise be evolved and established to ensure that there is proper disposal and that the techniques of disposal, such as landfill (if introduced), will not generate any other pollution problems. Recycling of solid waste should be required to the greatest extent possible. Telecommunications International standards exist that can be applied to the development of internet, telephone, telegraph/ telex (where still needed/ applicable), radio-telephone, cellular/ mobile and other means of wireless (or wired) telecommunications. E-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.3.2.9 E.3.2.10 E.3.2.11 E.3.2.12 E.3.2.13 E.3.3 E-21 Building Construction Standards Standards and specifications for the construction of public school buildings and other structures are essential. Usually, these already exist in the area in the form of the 1977 NBCP and its2004 Revised IRR, but should be reviewed to ensure that they are suitable, including review for public safety and fire protection. For example, sprinkler systems may now be required for low-rise buildings under R.A. No. 9514, the 2008 Fire Code of the Philippines (FCP) and its 2009 IRR. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures buildings, spaces between buildings, entourage, utilities and movement systems. Presently, this definition is one of the primary legal basis for interpreting the scope of urban design in the Philippines. Urban design quality necessitates addressing the following considerations: Sanitation and Public Health Standards Maintaining minimum sanitation and hygiene standards is also essential in institutional developments, especially for restaurants, bars, and toilet/ bathing facilities. Usually sanitation standards, in the form of a national or local public health code (such as The PH Sanitation Code), cover institutional areas but should be reviewed to make certain that they are adequate. Public health standards also relate to room size, ventilation, and fenestration (door, window or other natural light and/ or ventilation opening) requirements. Other Types of Engineering Design Standards permeability legibility quality of the public realm ease of movement robustness diversity appraisal of context defining framework within which development will take place - pattern, grain - movement - legibility, landmarks, views - blocks and plots Engineering-related Safety and Security Standards - density and form - mixing uses - landscaping connecting the development to movement and utilities (traffic management, parking etc.) designing the details that make the place a unique place - public realm - massing Operations and Management Guidelines Good planning and design of a public school development is only as good as the operation and management of the facility. Sustainable development requires an ongoing environmental management program (EMP) that covers environmental awareness, good practice, staff training, visitor education and environmental monitoring and evaluation procedures. continuity and enclosure The four (4) basic urban design elements are: Other types of engineering design considerations for institutional developments include, for example, elevator equipment, mechanized walk/ walkalator systems (if introduced), and the like, which all require specific standards, especially as related to operational and safety factors. Maximum attention must be given to engineering provisions fully addressing safety and security matters i.e. fire integrity of buildings/ structures, fire protection provisions and response mechanism (including building floor/ level fire searches and fire-fighting), incidents/ accidents, natural disaster (earthquake, grass fire, flashflood, animal attack and the like), crime, medical (including first aid and CPR) and related emergency responses, telecommunications/ linkages to the proper authorities, evacuation and the like; monitoring and prevention management devices and techniques should be well in place when the BUILDING operates. character - robustness - building and open space details The applicable urban design applications for institutional projects envisioned for the DPWH properties are: Urban Design Guidance What is urban design? The 2004 IRR of Republic Act (R.A.) No. 9266 (The Architecture Act of 2004) defines urban design as the physical and systematic design undertaken by a State-registered and licensed architect (RLA) on a community and urban plane, more comprehensive than, and an extension of the architecture of place markers and directional signage and/or way-finding systems RROWs including possible arcades wide open flexible use/ assembly areas and walking spaces street furniture in urbanized and highly built-up areas other forms of open public spaces E-22 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.3.3.1 E.3.3.2 Street Furniture Guidelines (where applicable) The overall quality of any development depends upon all aspects being sympathetically designed within an overall approach. For example, ill-considered detail in street furniture e.g. sidewalks/ paths, curb and gutter, railings/ barriers, benches/ rest furniture, site lighting, directional signage and related way-finding treatments, driveways, drop-off areas, bus/ mega-taxi/ jeepney stops (outside the property line), etc. can impact unfavorably upon the overall impression of the Project. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.4 Design/ Post-Design Guidance E.4.1 Detailed Design Process If applicable, all aspects of detailed plan/ design preparation for all facilities/ buildings/ structures onsite must conform to the 2004 Revised Implementing Rules and Regulations (R-IRR, effective 01 May 2005), of Presidential Decree (P.D.) No. 1096 otherwise known as the 1977 National Building Code of the Philippines (NBCP) and its approximately twenty (20) referral codes (“RCs”, particularly R.A. No. 9514/ 2008 Fire Code of the Philippines and B.P. Blg. 344/ the Accessibility Law), which should be familiar to most Philippine physical planners, architects, engineers and designers, who shall necessarily assume the attendant professional responsibility and civil liability for the projects onsite. Signs and Information Panels Signage should not dominate or block views and is more effective if a simple, easy to read design is used and the chosen materials and colors blend in with the natural setting. Outdoor displays are a good way to introduce the end-user/ visitor to the introduced flora in the Project area. However, if the guidelines and standards under this document or its subsequent iterations may in effect supplant/ complement/ supplement the absent, unexplained, insufficient or conflicting provisions under the NBCP and its 2004 Revised IRR, insofar as the physical planning and design of the proposed facilities/ buildings/ structures onsite are concerned, the same shall be fully complied with, particularly if the same are more stringent than the minimum standards prescribed by the NBCP. Lighting should be chosen to emphasize moods, themes and create a relaxed atmosphere e.g. the use of the night-time sky can be dramatic. However, light intrusion and over-lighting glare can obscure what little night vision is available. Care is therefore required to limit night lighting to the minimum necessary for safety. Light fixtures should remain close to the ground to minimize eye level glare. E.4.1.1 Established principles for creating sustainably-planned/ designed, green architecture (GA)-oriented and tropical design-oriented solutions are also strongly suggested for adoption into detailed designs for all facilities and buildings/ structures onsite. Detailed Design Documentation The minimum design documentation for public school projects are as shown hereafter: Pre-Design Documents which may include the following: E-23 The identification or confirmation (in case a master development plan/ MDP had already been prepared) of land (and available water) uses and access systems and the cross-effects between these and the proposed horizontal and vertical developments, on-site analyses on the physical characteristics and development potentials of the Project site, the proposed environmental design elements (including those that will define movement/ access/ privacy/ security, future access/ expansion), compliance with existing site master planning and design guidelines for institutional estate developments, national building laws e.g. concerning the delineation of structure footprints and construction areas and even local development-related ordinances. In instances where a MDP has already been prepared, the identification or confirmation of base data on the topography, soil condition, domestic water sources, drainage capability, flood cycles and levels, existing land use/ activities, existing utilities, access points and road rights-of-way (RROWs), rights-of-way (ROWs)/ legal easements, Philippine sun-path, solar angle and prevailing wind orientations, view orientation and sight lines, visual quality, environmental quality, climate and possible volcanic/ seismic activity/ fault-line locations, etc. In instances where a MDP has already been prepared, the identification or confirmation of data needed to fully comply with institutional-related planning and design guidelines/ laws/ ordinances to finalize siting, orientation, E-24 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures configuration, sizing and clustering of the proposed development components, to specify view corridors that will maximize privacy and security within each development, to specify the appropriate structures and materials to make the built environment earth-friendly and end-user-friendly, to specify the types of plants suitable to the place, to specify site civil works, etc. Pre-Design Documents for the horizontal and vertical development components of the Project in accordance with the stipulations of the pertinent Standards of Professional Practice (the “SPP”, effective March 2011) documents promulgated by the Philippine Professional Regulation Commission (PRC) as part of the Implementing Rules and Regulations (IRR) of Republic Act (R.A.) No. 9266, otherwise known as the Architecture Act of 2004, and covering such professional responsibilities and deliverables as spatial and building program, architectural program, initial project cost determination, design briefs, etc., which altogether constitute the bases for design. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The necessary reportage and work phase documentation. Conceptual plans and designs for the horizontal and vertical development components of the Project in full accordance with the stipulations of the pertinent SPP documents (effective March 2011 and thereafter) promulgated by the PRC as part of the IRR of R.A. No. 9266, and covering such professional responsibilities and deliverables as the schematic architectural/ space, supportive engineering and allied plans/ layouts, initial plan and design analyses, budgetary cost estimate of the Project development cost, etc.; and - Floor Plans drawn to scale of not less than 1:100 m showing: gridlines, complete identification of rooms or functional spaces. - Elevations, at least four (4), same scale as floor plans showing: gridlines; natural ground to finish grade elevations; floor to floor heights; door and window marks, type of material and exterior finishes; adjoining existing structure/s, if any, shown in single hatched lines. Preliminary plans and designs for the horizontal and vertical development components of the Project in full accordance with the stipulations of the pertinent SPP documents (effective March 2011 and thereafter) promulgated by the PRC as part of the IRR of R.A. No. 9266 and covering such professional responsibilities and deliverables as the preliminary architectural/ space, supportive engineering and allied plans/ layouts, outline specifications, revised budgetary cost estimate of the Project development cost, etc. Contract Documents (or their official equivalents) which may include the following: E-25 Detailed plans and designs for the horizontal and vertical development components of the Project in full accordance with the stipulations of the pertinent SPP documents (effective March 2011 and thereafter) promulgated by the PRC as part of the IRR of R.A. No. 9266, and covering such professional responsibilities and deliverables as detailed architectural/ space, supportive engineering and allied plans/ layouts and the attendant technical specifications (all signed and sealed by duly-qualified and suitably-experienced registered and licensed professionals/ RLPs registered and licensed by the PRC in compliance with the pertinent professional regulatory laws/ PRLs), schedules of materials and finishes, final or detailed cost estimate of the Project development cost, tender Vicinity Map/ Location Plan within a 2.0 kilometer radius for commercial, industrial, and institutional complex and within a half-kilometer radius for residential buildings, at any convenient scale showing prominent landmarks or major thoroughfares for easy reference. - Perspective drawn at a convenient scale and taken from a vantage point (bird’s eye view or eye level). The necessary reportage and work phase documentation. The necessary reportage and work phase documentation. Architectural Plans/ Drawings - Site Development Plan (SDP) showing technical description, boundaries, orientation and position of proposed building/structure in relation to the lot, existing or proposed access road and driveways and existing public utilities/ services. Existing buildings within and adjoining the lot shall be hatched and distances between the proposed and existing buildings shall be indicated. Design Development Documents (or their official equivalents) which may include the following: In the case of architectural documents as defined under PH law and international practice i.e. architectural plans, designs, drawings, details, specifications, schedules, reportage and contract documents, R.A. No. 9266 and its IRR specify that only registered and licensed architects (RLAs) shall prepare, sign and seal such architectural documents. Sec. 302.4 of the 2004 Revised IRR of the NBCP enumerates architectural documents as follows: Schematic Design Documents (or their official equivalents) which may include the following: documents, supportive engineering analyses, bid bulletins including schedules of material suppliers, official forms for permitting purposes, etc. - Sections, at least two (2), showing: gridlines; natural ground and finish levels; outline of cut and visible structural parts; doors and windows properly labeled reflecting the direction of opening; partitions; built-in cabinets, etc.; identification of rooms and functional spaces cut by section lines. - Reflected ceiling plan (RCP) showing: design, location, finishes and specifications of materials, lighting fixtures, diffusers, decorations, air conditioning exhaust and return grills, sprinkler nozzles, if any, at scale of at least 1:100 m. Details, in the form of plans, elevations/sections: - Accessible ramps - Accessible stairs - Accessible lifts/elevators - Accessible entrances, corridors and walkways - Accessible functional areas/comfort rooms - Accessible switches, controls - Accessible drinking fountains E-26 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures - Accessible public telephone booths - Detail design of major architectural interior elements. - Accessible audio visual and automatic alarm system - Plan and layout of interior, wall partitions, equipment/appliances at a scale of at least 1:100 m. - Accessible access symbols and directional signs furnishing, furniture, - Typical wall/bay sections from ground to roof - Interior wall elevations showing: finishes, switches, doors and convenience outlets, cross window sections with interior perspective as viewed from the main entrance at scale of at least 1:100 m. - Fire escapes/exits - List of materials used. - Reserved parking for disabled persons - Stairs, interior and exterior - Floor/ceiling/wall patterns and finishing details. - Built-in cabinets, counters and fixed furniture - All types of partitions Schedule of Doors and Windows showing their types, designations/marks, dimensions, materials, and number of sets. Schedule of Finishes, showing in graphic form: surface finishes specified for floors, ceilings, walls and baseboard trims for all building spaces per floor level. Details of other major Architectural Elements. Figure E-1 - Cost Estimates. Plans and specific locations of all accessibility facilities of scale of at least 1:100 m. Detailed design of all such accessibility facilities outside and around buildings/ structures including parking areas, and their safety requirements all at scale of 1:50 m or any convenient scale. Fire Safety Documents - Layout plan of each floor indicating the fire evacuation route to safe dispersal areas, standpipes with fire hose, fire extinguishers, first aid kits/cabinets, fire alarm, fire operations room, emergency lights, signs, etc. STANDARD FORM (Type A0, A1, A2 and A3) FOR BUILDING PLANS/ CONSTRUCTION DRAWINGS Figure III.1.(of the 2004 Revised IRR of the 1977 NBCP) - Details of windows, fire exits with grilled windows and ladders. - Details of fire-resistive construction of enclosures for vertical openings. - Details of fire-resistive construction materials and interior decorative materials with fire-resistive/ fire-retardant/ fire-spread ratings - Other Related Documents E.4.2 - Other related documents Post-Design Process The post-design process shall generally include the following sets of activities: MODEL TITLE BLOCK for Building Plans/Construction Drawings Figure III.2. (of the 2004 Revised IRR of the 1977 NBCP) Architectural Interiors/ Interior Design - Space Plan/s or layout/s of architectural interior/s. - Architectural interior perspective/s. - Furniture/ furnishing/ equipment/process layout/s. - Access plan/s, parking plan/s and the like. E-27 E.4.3 Pre-construction activities which include other project management work, design review and modification, contractor pre-qualification, bidding and award/ selection. Construction activities which include actual construction and finishing works, construction management. Post-construction activities which include project documentation, commissioning works, turnover, acceptance, occupancy. The necessary reportage and work phase documentation. Architectural Guidance Climatic characteristics establish the basic factors that need to be taken into account in terms of building features related to the architecture of low-/ medium-density terminal buildings in a hot-humid tropical climate. E-28 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Image: This consideration should evolve in the planning stage as a consequence of the physical and market analysis. Each site is unique and hence should name its own characteristic image. or recycled wood are preferred over naturally grown/ harvested tree varieties, particularly PH hardwoods which are scarce and some species of which are banned for construction use. The use of alternative construction and finishing materials such as the CBB or FCB and the like, which use both natural and artificial components, are also encouraged to avail of their superior material qualities (as compared with some conventional construction materials). Building Form, Finishes and Layout: It is accepted that most rooms will be preferably/ optionally air-conditioned (for indoor climate control) but end-users should also be able to benefit from outdoor breezes. However, the main objectives are to encourage breezes to pass through the non-air-conditioned communal/ common building spaces and outdoor spaces. The orientation and construction of buildings to exploit the maximum amount of air movement is very important. The use of imported construction/ finishing materials is only recommended if the comparative environmental planning/ design value of the material is high to very high. Interior/ Architectural Interior (AI): In any mixed-use development facility, and especially in hot-humid tropical areas such as the PH, the interiors/ AI should be considered carefully. Major internal spaces are the heart of any facility, being the areas through which all people move. The treatment of such spaces should reflect a Project's unique quality. While natural ventilation is a must, it is equally important to complement it with sufficient provisions that protect the end-users from excessive sun, light and heat. The use of the correct exterior color selection to balance reflected light and heat is a must while the selection of non-traditional building materials that have high to very high insulating, pest-proofing, fire-resisting, water-repelling and other beneficial properties is encouraged e.g. wood-wool cement-bonded board (CBB), fiber cement board (FCB) and the like which come in different densities, textures and finish preparations. The broad factors to be observed are: Major buildings should be designed with relatively open, elongated plan form with rooms generally distributed in single rows to allow maximum cross ventilation and penetration of breezes (passive cooling techniques through the floor, walls and ceiling when and where applicable). Suggested Architectural Design Objectives E.4.4.1 General Design Objectives Projecting canopies or broad overhanging eaves should provide shading to outdoor sitting and circulation areas – shading devices provide both essential protection and a means to define and articulate architectural characteristics. High ceilings or use of double roof construction should be used as applicable; enclosed ceiling cavities, if introduced must either be actively or passively cooled. Inexpensive insulating and pest-proofing devices for all building elements should be considered. Window openings should ideally be considered in relation to sunlight i.e. The integration of shading devices that minimize direct radiation, reduce sky glare, permit adequate natural lighting and allow outward views. Materials: These should reflect the development image, visual context, the Project site's setting within the area and degree of harmony, or contrast, being sought. Where possible, properly-treated/ processed local materials, preferably pest-proof and more importantly, fire-resistant or retardant, should be extensively used. High quality materials and furniture, roadway, footpath and hard open space surfaces, shade structures, fencing, walls, lighting, bollards, rails and the like, can make an immense difference to the quality of the grounds development. The materials and architectural form can help integrate them with their environment. General/ overall environmental sustainability is a foremost consideration in base construction and finishing material selection. Commercially-grown hardwood/ softwood varieties, processed wood products from wood wastes/ debris/ driftwood E-29 E.4.4 Main public facilities should be accessible from open galleries. The use of water and water mist/ spray can also be employed to cool the building environment and its grounds. Sympathy and Consistency of Detail: The design should evolve from careful study of the BUILDING Project sites and their surroundings, and once in place, the intent should be visible and consistent, extending from broad concepts to the choice of motifs. E.4.4.2 Cost-effective space planning/ design/ implementation/ startup/ operation/ maintenance. Good return-on-investment (ROI) for the building owner. Enhancement of owner’s image through the creation of an appealing architectural design solution. Improvement of the quality of functions, services, circulation and security through sensitive/ sensible/ practical design and efficient architectural and space planning. Enhancement of public areas such as the lobbies, lounges, waiting areas, etc. to foster better relations with entities being served; improvement of personnel efficiency of the public school facilities through the betterment of building usage conditions and environment. Specific Design Objectives Optimization of spatial provisions for internal building/ structure circulation/ traffic. Optimization of space provisions for basic building operational tasks. Optimization of space provisions for amenities/ facilities/ services/ utilities (the “AFSU”). Balance among end-users, planned spaces and identified activities that shall take place inside the building/ structure/ facility. Balance between the building and the natural environment. E-30 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Balance between the building’s function and form. Balance between present and future end-user needs. Balance between the BUILDING’s strength and economy. Balance between the user-friendliness of the BUILDING and its grounds/ perimeter areas with overall operations/ upkeep/ maintenance considerations. Balance between energy efficiency and a good operating environment. Architectural Design Concepts E.4.5.1 General Concepts Since the Project is essentially institutional and supposed to be sited on lots with optimal sizes and configurations, with projected numbers of future building users and with the certain possibility of future operational expansion, it may be worth considering to provide for maximized vertical expansion flexibility, only if countenanced under existing development controls such as the 2004 Revised IRR of the 1977 NBCP. Specific Concern on What the Proposed BUILDING/ Structures Should Have There are many specific concepts that will be generated by Project consultants for discussion with the Building Owner, and among these are: E-31 Balance between the BUILDING’s interior and exterior i.e. Organic design or the interplay of interior and exterior spaces a preferred spatial and design solution. E.4.5 E.4.5.2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures The correct physical orientation to achieve maximum indoor climate control and energy efficiency. The maximization of operational efficiency indoors and outdoors through the correct use of materials, lighting, forms, finishes and textures, etc. Employment of passive cooling/ lighting technology as applicable for both the buildings and their grounds. The projected building exterior/ interior images should convey combinations of strength, stability, efficiency, honesty, nationalism (and possibly even hints of dedication to civic duty and public service), approachability at all times, accessibility and possibly even a sense of appreciation for art/ history and culture. Exterior/ interior areas must use a good mix of light colors for body, and dark colors for accent to achieve a good measure of climate and psychological control. If possible, forms should follow lines so that the buildings’ appearance would not age easily in terms of aesthetic appeal. The buildings should all be human in scale and proportion, with the direct application and judicious mix of both asian and western space planning/ architectural design standards. Provision of a visitor-friendly and worker-friendly environment i.e. The buildings and their grounds should be safe and easy to use at all times for people of all ages, physical capabilities and backgrounds. Provision of optimum room for future operational expansion and growth. Maximization of the use of all horizontally, generated spaces through the use of all available vertical spaces. Maximization of the use of all horizontally generated spaces by allowing for the flexibility and multiplicity of space uses. Generated space plans should reflect considerations of time and motion studies. Generated space plans must reflect considerations for territoriality i.e. The human bubble which can be opened or closed depending on the type of activity and the situations called for. Generated space plans may either show considerations for the way people tend to behave inside enclosed/ confined spaces or measures to curb what may be considered as unproductive/ undesirable behaviour. Maximization of use of locally available (but of good quality) and/ or imported but locally-sourced materials to generate cost savings, to facilitate project implementation, and for ease of upkeep/ maintenance. Maximization of building and equipment lifecycles through the proper selection/ mix of the necessary components. Maximization of the use of trees, plants and other soft landscaping elements to cleanse/ purify the atmosphere at the micro-environment level and to achieve exterior and interior micro-climate control e.g. Near-ground ambient temperature/ heat levels caused by heat-/ light-reflective materials. Optimum to maximum attention given to health and sanitation matters. Maximum attention given to safety and security matters, particularly the fire integrity and defensibility of buildings/ structures. E.4.6 Suggested Architectural Planning and Design Criteria E.4.6.1 Function This criterion has to be addressed above all others inasmuch as it pertains to how the resulting BUILDINGS shall be utilized to realize key Building Owner goals and objectives. Inasmuch as the Projects are mainly public service-related structures, the key considerations are: The types and numbers of end-users. The types of activities that shall take place within each building by such as official business, personal transactions, instructional, social, recreational, religious, commercial. The quantity/ quality of spaces to be generated, by type. As all of the foregoing factors are closely interrelated, an exhaustive identification and analysis of the end-users together with the hierarchy of their needs and activities, as well as of the optimum spaces required to satisfy these end-user needs/ activities shall be undertaken by Project consultants to establish and possibly rank or prioritize all the necessary amenities/ facilities/ services/ utilities (AFSU). E-32 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.4.6.2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Form or Integration of Architectural Design Elements BUILDINGS. The resulting structure should be safe for everyone to use i.e. including children, the elderly and the persons with disabilities (PWDs), women, etc. This criterion pertains to the need to relate existing site/ building conditions with the planned physical/ social/ psychological environments as well as with the envisioned quality of generated spaces. Various design elements have to be carefully utilized to realize the best architectural solution and of these, form is one of the most important. E.4.6.3 E.4.6.4 The satisfaction of the minimum physical planning and design standards by compliance with all applicable local and international laws must be observed by all Project consultants, particularly the State-registered and licensed environmental planners (the “RLEnPs”) and the State-registered and licensed architects (“RLAs”) who will be held primarily responsible and liable for their respective Project roles under the concerned PH PRLs and the New Civil Code (1949/ 1954). Although form is the logical consequence of having initially established the buildings’ function/s (which is/ are the primary consideration/s for any building plan/ design), it shall be qualitatively expressed in terms of lines, scale, proportion, the use of light and shade, textures, finishes and color. If properly integrated, all of these would contribute in projecting a very stable and efficient image for the Owner/ Proponent, which will ultimately redound to each end-user's pride in his/ her abode, recreational space and/or workplace. Before getting engaged in local mixed-use projects, foreign or expatriate physical planning and/ or architectural consultants must secure the necessary permits from the PRC i.e. a Special/ Temporary Permit (STP) to practice a State-regulated profession on PH soil, the PH Department of Labor & Employment (DoLE), the Bureau of Immigration and Deportation (BID), as well as from the PH Department of Foreign Affairs (DFA). Adherence to Basic Architectural Design Principles BUILDINGS should preferably all be "self-contained systems" that shall be planned/ designed to promote health and sanitation, worker efficiency and minimal disturbance to the natural and built environments. A judicious mix of the basic architectural design principles of unity of design and of the use of repetition, rhythm, balance and emphasis should be regularized in support of the public nature of the proposed BUILDING’s and grounds. Budget and Economy in Space Planning/ Architectural Design The availability of funds for planning/ design/ implementation/ startup/ operation/ maintenance will influence all planning/ design options that shall be made available to the Building Owner by the Project planning or architectural consultant. E.4.6.5 The satisfaction of the sub-criterion of design economy starts with correct space planning and this is the reason why this particular component of the Pre-Design service should be carried out well. Design should only result from careful interior space planning and site development planning but such good plans can only become possible with the utmost cooperation of the Owner/ Proponent, the end-users, other identifiable stakeholders and the host community in general. Therefore, interactive discussions between the parties and the Project consultants are a must and should be regularized. Time Consideration From the architectural planning/ design viewpoint, this criterion has to do mainly with the anticipation of future BUILDING use changes, supplementary operational requirements and expansion potentials all of which would have to be satisfied to forestall future growth difficulties. A normal planning-design horizon is from 10 - 15 years on a Project life cycle of 25 years. E.4.6.6 From the Project implementation standpoint, this criterion would mean considerations such as those that will affect construction phasing and the project timetable (from pre-construction to occupancy/ startup of the structure). Safety, Security, Accessibility and Environmental Considerations These architectural planning/ design criteria must reflect the Project consultant’s major concern for the well-being of all identified end-users of the proposed E-33 E.4.6.7 E.4.7 E.4.7.1 Maximum attention given to architectural provisions fully addressing safety and security concerns i.e. fire integrity of buildings/ structures, fire protection provisions and response mechanism (including fire/ floor/ level searches and fire-fighting), incidents/ accidents (including possible yacht-related events/ occurrences at the marina), natural disaster (earthquake, tsunami, grass fire, flashflood, animal attack and the like), crime, medical (including first aid and CPR) and related emergency responses, telecommunications/ linkages to the proper authorities, evacuation and the like; monitoring and prevention management devices and techniques should be well in place when the institutional facilities operate. Application of Internationally-Recognized Architectural Planning and Design Standards and of Anthropometrics In as much as the proposed BUILDINGS shall be accorded a high profile and international character by virtue of its function, a judicious mix of Filipino, Asian and Western planning/ design standards shall be applied. Anthropometrics must always play a key role in making the institutional environment easy and safe to use. The resultant anthropometrics-based plans/ designs shall ultimately redound to the attainment of savings and efficiency of operations. Other Architectural Considerations Other architectural considerations for the envisioned BUILDINGS shall be as follows: General Architectural Design Architectural design guidelines for public service-related facilities must be more flexible than development standards to allow for the creativity of the Architect/ Designer. However, when a certain design character is desired in an area or development site, basic guidelines should be established and provided to the Architects/ Designers for their use in the space planning and design process. These E-34 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures guidelines are also to be used by the approving authorities in their review of the proposed facility design. E.4.7.2 Some basic types of guideline considerations are mentioned elsewhere hereafter e.g. standards on mixed-use facility layouts, room sizes, length of corridors, and other standards, which are generally available in design reference books on such subjects. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.4.7.6 Local Styles and Motifs E.4.7.4 E.4.7.7 Use of Local Building Materials For example, metal roofs and expansive masonry walls generate very hot building interiors in high temperature environments, leading to increased demand for airconditioning (which is contrary to energy conservation). Environmental Relationships Building design should relate to the natural environment. For example, in tropical and subtropical areas, buildings should incorporate indoor-outdoor (or organic designoriented) relationships through use of open-sided lobbies, patios, and courtyard gardens. In tropical climates, designing for natural ventilation may preclude the need for air-conditioning during much of the year but demand for air-conditioned facilities should never be discounted as the PH is a hot-humid tropical zones i.e. high humidity E-35 Roof Lines To the greatest extent possible, local building materials should be utilized, especially if they relate to the local architectural style (primarily based on functional considerations), as is often the case with wood or stone construction. Also, the use of local building materials may be less expensive than imported materials and provides employment and may provide some measure of possible income for residents of the host area. Exceptions to this standard are where use of traditional local materials, even though attractive and functional, may create environmental problems. E.4.7.5 In some instances, there is a problem of completely integrating the local style due to differences in scale and function, but usually some local motifs can still be utilized. Local motifs, including handcrafted materials, can also be incorporated into the interior decor of the facilities. If no local styles prevail, sometimes a neutral international but environmentally-oriented style is appropriate, rather than wholly importing a style from elsewhere that is not related to the area. The design of roofs (flat, pitched, overhang, etc.) is an especially critical design element inasmuch as rooflines are very visible for low-rise buildings, and these greatly influence the character and appearance of the buildings/ structures to be erected onsite. Rooflines should preferably reflect the local architectural style (primarily based on functional considerations) and be consistent with the characteristics of the natural environment. Design for Persons with Disabilities (PWDs) More emphasis is now being placed on architectural designs for the PWDs (in compliance with both Batas Pambansa Bilang (B.P.) Blg. 344: The Accessibility Law of 1982 and its IRR and with R.A. No. 7277 (otherwise known as the Magna Carta for Disabled Persons of 1991) and its IRR, including provisions for the physically impaired, sensory-impaired, slower moving elderly people, and the mentally impaired. This design approach is also being extended to end-users who are PWDs. Barrier-free architectural design should be applied to the envisioned BUILDING and attractions, with techniques applied such as: If there are distinctive local, traditional, or historic architectural styles already developed in the host area/s and environs, these should be incorporated into the institutional facility designs to the greatest extent possible so that these facilities fit into the local environment, reinforce the architectural character of the area, and impart a distinct sense of place to the BUILDING development. E.4.7.3 levels. Building design should also take advantage of any views fronting the site to help maximize organic relationships with the host site. E.4.8 Developing hard, relatively smooth, wide indoor paved surfaces; Ramped access with automatic door openings or through bars at entrances to buildings/ structures, and Restrooms and public telephones designed for use by persons in wheelchairs. In high ambulatory/ pedestrian traffic areas, vehicular traffic should be well separated from pedestrian access-ways for safety reasons in general and especially for the safety of the PWDs. At such areas, presentation techniques should include those that can be appreciated by the sensory-impaired and mentally impaired, with special programs organized where relevant. Design for Gender and Age Emphasis shall also be placed on design considerations that address various sensitivities related to gender and age i.e. the physical needs of end-users such as women, young adults, children, babies and the elderly, particularly as the same relates to ambulatory activities. Landscape Architecture Guidance One of the strongest features for institutional developments is the quality of the outdoor environment. Successful developments carefully blend landscaping and architecture to achieve a consistent, unified and unique Project character. Considerations for institutional developments in particular, include: Thematic design should be related to the planning and architectural elements of the facility. For example, the use of boulders (introduced onsite) and local trees can provide both a sense of enclosure and integration with the existing landscape while lush courtyards can help extend interior spaces outward. Each BUILDING development requires some form of appropriate open space which should be dedicated for the use and enjoyment of all visitors/ end-users. These should ideally be designed around existing vegetation and landforms. Even the smallest planting pockets, if well-designed, can offer elements of form, texture, shadows, fragrances and color. People will enjoy external spaces for passive recreation and socializing in a sunny/ warm but humid climate if the space is well-shaded and correctly orientated. E-36 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Aside from the foregoing elements, planting/ vegetation can be used for shelter/ shade and reduction of glare. The cost of running air-conditioning can be reduced by using vegetation to shield roofs and walls from direct sunlight. Planting can also be used to screen substations and garbage bins, as a barrier to prevent people straying, to stop soil erosion and stabilize slopes and as a space definer. The use of naturalized plant species can also reduce water usage. Xeriscape landscaping is the selection and zoning of plants according to their water requirements. This design strategy is very cost-effective, as maintenance and watering are minimized. It is also aesthetically- and ecologically-sound in principle since plants are selected to harmonize with their environment. Landscaping schemes should therefore attempt to group plants according to water and maintenance requirements The selection of material for hard landscapes depends on the purpose. The use of materials also helps to define changes of use (vehicles/ pedestrians), level, ownership and approaches to focal points. Attention should be given to color, pattern, noise, sunlight, heat and maintenance. The appropriate use of water, its sight and sound, can enrich the enjoyments of the environment and resort facility immensely and be employed to cool the environment. Other Landscape Architectural Considerations Other landscape architecture considerations for the envisioned BUILDING developments are as described in the following sections. General Landscaping Design Generous and suitable landscaping is an essential element in creating an attractive and interesting public service-related environment and also serves important functional purposes. Even in urban environments, exterior and interior landscaping can help create a desired character of the facility. Landscape architecture is concerned with the relationship and appearance of the total environment, with particular reference to plants and landscaping features such as water bodies, footpaths, and outdoor furniture and lighting. Good landscaping attempts to provide unity and cohesion in the local environment and a sensitive balance between man-made features and the natural elements. More specifically, landscaping in public service-related developments involves the effective use of plant materials and other features for such purposes, according to certain principles as: E-37 Creating an attractive setting conducive to relaxation and recreation (even just for short periods). Screening objectionable views and providing privacy. Providing vegetative buffers to absorb unpleasant sounds, smells, and dust. Arranging plants to provide relief from intense sun glare and rain, as well as to reduce surface/ ambient temperatures. Minimizing the effects of high winds, yet still allowing for the flow of gentle breezes. Organizing the plant material to complement a landform, to enhance a building line or facade, to gradually unfold an attractive vista or to frame a major entrance Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures area; in some cases, the plants themselves can be used to provide focal points and major visual features. Situating plants in strategic places where they can be best appreciated; many plants are more attractive if planted in mass and seen from a distance whereas others must be seen at close range to be fully appreciated. Arranging and massing trees and shrubs, particularly native flowering species, to provide dramatic color and textural variation. Introducing visitors to new species and varieties of plants, especially from the local area (as applicable). Landscaping can also be used to screen and ameliorate poor building design or inappropriate use of building materials, not an uncommon situation in public servicerelated developments. Where available, local indigenous plant material should be utilized in landscaping because local plants grow well in their own environment and reinforce the natural vegetative character of the sites. However, certain imported exotic plants that do well in the local environment may also be appropriate. Major plants and especially mature trees endemic to the development site should be saved and incorporated into the final landscaping plan as much as possible. Plant material that is easy and inexpensive to maintain and conserves resources should be used e.g. not using plant species which require large amounts of water, etc. Water features such as ponds and small waterfalls can offer very interesting accents and visual focal points in a landscaped area, but these should be carefully designed for ease of maintenance and conservation of water such as re-circulating the water used in ornamental fountains and waterfalls. Footpaths are an important element of landscaping for institutional developments and visitor facility sites. In addition to serving their pedestrian function, footpaths should be attractive, safe and practical to use, as well as be designed to offer interesting views. Outdoor furniture (benches, tables, etc), shelters, and kiosks are often important to include when landscaping mixed-use facilities; these should be suitably designed reflecting the building design, properly located, and well constructed. Night lighting in landscaped areas is important for both functional reasons of safety and security and for aesthetic appreciation of buildings and landscaping. Lighting is used at entrances, access drives, and parking lots, along footpaths, in recreational areas, to illuminate interesting building and landscape features, for information signs and in service yards. Except in service and high security areas, the most suitable type of lighting is typically indirect and not too bright e.g. use of low-shaded lights along a footpath that light the pathway but do not shine in the walkers’ eyes. A properly registered and licensed Landscape Architect (RLLA) must be commissioned directly by the Building Owner/s or through/ with the separatelycommissioned registered and licensed Architect (RLA) or Environmental Planner (RLEnP) to jointly collaborate on the landscape architectural design of the Project. Design for Persons with Disabilities (PWDs) More emphasis is now being placed on designing for the persons with disabilities or PWDs (in compliance with both B.P. Blg. 344 and R.A. No. 7277), including the physically impaired, sensory-impaired, slower-moving elderly people, and the E-38 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures mentally impaired. Barrier-free design should be applied particularly transportation facilities and attractions, with techniques applied such as: Developing hard, relatively smooth, wide walkway paving surfaces. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures to curbs with ramped cuts at intersections. E.5 Environmental Guidance E.5.1 Environmental Awareness ramped access with automatic door openings or through bars at entrances to buildings/ structures. restrooms, drinking fountains, and public telephones designed for use by persons in wheelchairs. Design for Gender and Age E.5.1.1 Emphasis shall also be placed on design considerations that address various sensitivities related to gender and age i.e. the physical needs of end-users such as women, young adults, children, babies and the elderly, particularly as the same relates to ambulatory activities. E.5.1.2 Environmental awareness is growing throughout the world As such, the promotion of sustainable development in the Philippines can only bring positive results as it can provide a basis for achieving sustainability in the planning and design of public facilities, encourage responsible decisions in energy and water conservation and waste management, and emphasize the importance of bio-diversity. Environmental Management A proactive approach to environmental management may include a commitment to continuous improvement in the area of general land and facility management. Possible co-operative working agreements between government and the community at large, particularly in urban or rapidly urbanizing settings should be established e.g. sponsoring environmental management and/ or conservation education activities and monitoring sensitive ecological sites. Staff Training Producing an environmental management plan (EMP) is an essential factor in developing a pro-active approach. A clear environmental policy statement or Code of Ethics to be adopted and endorsed by the Building Administrator shall ensure compliance to environmental management standards (EMS). This policy would guarantee responsibilities of key Building Administration site personnel towards the natural and built environments, alongside training and communications procedures instituted to continually and progressively inform/ educate BUILDING end-users and visitors about such a policy. An environmental policy statement from the Building Administrator could include realistic environmental management objectives and targets. Procedures and targets may be specified for environmental issues such as environmental protection, waste management (including reuse/ recycling), energy and water conservation, education and research, purchasing or cleaning policies, landscaping and visitor education. Depending on the results of ongoing coordination and research work, additional material on the immediately foregoing environmental considerations may be subsequently supplied. E.5.1.3 For large-scale institutional developments, it may be necessary to employ an environmental officer to establish environmental procedures and supervise and monitor their practice/ implementation/ enforcement. Consequently, the impact of an institutional development upon the surrounding environment could be monitored. Adequate staff training will also help ensure the mixed utilization of measures to improve environmental performance. Fostering innovation within the development and amongst the BUILDING staff/ end-users/ visitors will encourage improvements in environmental management and performance. End-User/ Visitor Education In campus developments (such as PUDs or portions thereof) that are properly planned, the environmental work often becomes part of the marketing package, as E-39 E-40 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.5.1.4 environmental constraints such as landscape features, water elements, available or introduced wildlife (such as birds), etc. all become blended into the development and gradually become part of the attraction. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.5.2.2 The sewage treatment system (STS) of an institutional development must be adequate, especially when sited at environmentally-sensitive locations (as applicable). Maintenance Guidelines A realistic maintenance program is crucial in the continuing promotion and success of the Project's image. It must be remembered that even the best-designed developments can be seriously compromised by poor maintenance. E.5.2.3 Recognition of the close links between the environment and long term economic viability will promote commitment towards improved environmental management of the development. Effective environmental management practices may involve recycling and waste management programs, energy and water conservation, staff training and end-user/ visitor education and involvement. E.5.1.5 Monitoring of the construction and operation phases of the intended development can improve the effectiveness of environmental management practices and minimize adverse environmental or social impacts. An environmental monitoring program (EMoP) should record regulatory requirements and set realistic management and performance targets or standards, such as for example, a ten percent (10%) reduction in electricity use. E.5.2 E.5.2.1 The EMoP should also establish environmental performance indicators (EPI) that are easy to measure and that might indicate specific problems preventing the achievement of specific targets. Regular data collection, record keeping and reporting procedures to examine actual performance will need to be established. E.5.2.5 Applicable Definitions Sewage refuse liquids or waste matter carried off by sewer pipes/ lines. Sewerage the removal and disposal of sewage and surface water through sewer pipes/ lines. a man-built subterranean conduit to carry sewage and sometimes surface and rain/ storm water. Sewage from mixed use facilities must be treated in accordance with the effluent standards of DENR Administrative Order No. 35, series of 1990 or later issuances that are valid and subsisting. Awareness The applicable provisions of Rule IX (Sanitation) of the 2004 Revised IRR (effective 01 May 2005) of P.D. No. 1096, the 1977 NBCP and the pertinent NBCP referral code/s (RCs) covering the sewerage requirements of the Project must be fully satisfied. A properly registered and licensed Sanitary Engineer (RLSnE) must be commissioned directly by the DPWH (and/or the BUILDING project Proponent/s) or possibly through/with the separately-commissioned registered and licensed Architect (RLA) or Environmental Planner (RLEnP) to jointly collaborate on the planning and design of the sewage handling and sewerage system. Possible Arrangements The use of treated/ processed sewage water for toilet flushing or for watering plants should be encouraged to help reduce the amount of sewage. On Sewage Disposal In the absence of a sewer system, septic tanks may in the interim fully process sewage before direct discharge to the wastewater drainage system. E.5.2.6 Absorption pits are economical options but may inevitably and deleteriously affect groundwater quality. Checklists (Dos and Donts) Is a responsible and sufficiently experienced/ trained person going to oversee the operation of the STS for the proposed BUILDING? Sewerage Guidance Sewer E-41 E.5.2.4 Monitoring and Evaluation Baseline environmental data should always be collected before any construction or development work commences. An environmental audit, or an audit of some aspects of performance (such as energy or water conservation and efficiency or waste management practices) shall be useful in providing future baseline data and in identifying specific areas where alternative practices can contribute towards improved environmental performance. General Requirements Are the areas for sewage collection/ treatment and for sewerage conveyance secure and amply buffered/ segregated from other activity areas? E.5.3 Wastewater Guidance E.5.3.1 Applicable Definitions Drain to draw off liquids gradually and/ or completely; a pipe or conduit through which liquids are drained; Wastewater water that has been used, rejected for any other use and needing to be disposed of or physically removed from a site; wastewater may organic and/ or inorganic and may include natural surface run-off, surface drainage water for paved/ artificially impervious surfaces, Drainage a device or system for draining liquids; E-42 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Wastewater Management E.5.3.2 excess rainwater, storm water, kitchen water, bath/ shower water, and similar types of water; the term also refers to sewage; and a process of collecting, storage and disposal (through treatment, recycling, creative re-use, etc.) of wastewater (including sewage) for economic and social (including environmental) gain; management entails planning, supervision and monitoring of wastewater resources and facilities and the enforcement of guidelines for safe and economical wastewater re-use or disposal. E.5.3.5 Applicable Definitions Water Wastewater drainage is a mandatory requirement for all establishments. Water Management A sanitary inspection must be satisfied for the renewal of the annual LGU-issued permit to operate the BUILDING. General Requirements Flooding by natural causes must be prevented as much as possible by the correct and economical engineering interventions e.g. interceptor trenches, culverts, dikes, retention or impounding structures and the like (as needed). Awareness the liquid that is a major constituent of most living organisms, which descends from the clouds as rain, forms water bodies/ passages and subsequently collected naturally or artificially and distributed for use. a very limited and closed/ controlled commercial system involving water generation/ collection and distribution for domestic and other uses by consumers. a managed system/ procedure of collecting, storage, distribution, conservation (including limited recycling) of safe domestic and potable water secured from commercial or other sources; management entails planning, supervision and monitoring of use and consumption of the resource and the enforcement of guidelines for safe and economical water usage. Water sources can be rainwater, freshwater, well-sourced water, other types of harvested ground water (as applicable). Design Considerations Distances between source points and usage points must be minimized. b. A three to four (3-4) day supply reserve may be ideal for most types of institutional operations and should be considered in the designed water storage capacity. Similarly, a RLSnE must be commissioned directly by the DPWH (and/or the BUILDING Owner/s) or through/with the separately-commissioned RLA or RLEnP to jointly collaborate on the planning and design of the wastewater system. Design Considerations Awareness Wastewater must be processed by chemical means to limit its negative effect on living organisms i.e. bio-oxygen demand (BOD) of 10 parts per million (ppm) or less or better. The Rule IX (Sanitation) of the 2004 Revised IRR (effective 01 May 2005) of P.D. No. 1096, the 1977 NBCP and the pertinent NBCP referral code/s covering the water supply requirements of the proposed Project must be fully satisfied. Checklists Conservation Shall a responsible and sufficiently experienced/ trained person be in charge of the wastewater management program for the BUILDING? Faucets within the BUILDING/ facilities. Together with faucets (with additional flow controllers), there is also need to always supply a full large pail of water for use in toilets and a drum of water on standby i.e. which double as an emergency water supply in case of fire. Wastewater may be mixed. However, sewage water and kitchen wastewater may be mixed with other types of wastewater only after they have undergone the proper treatment or processing. Is the area for wastewater (including sewage) collection, storage, treatment, recycling, etc. amply buffered/ segregated from other activity areas? E-43 Water Supply Guidance General Requirements The applicable Rule IX (Sanitation) of the 2004 Revised IRR (effective 01 May 2005) of P.D. No. 1096, the 1977 NBCP and the pertinent NBCP referral code/s covering the wastewater requirements of the proposed Project must be fully satisfied. E.5.3.4 E.5.4 Water Supply Sanitary plans/ designs and an accomplished Sanitary Permit form, duly signed and sealed by a RLSnE, is required before commencing any level of construction work involving sanitary and outdoor plumbing work. E.5.3.3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Use low-pressure distribution systems to minimize system leakages. Similarly, a RLSnE must be commissioned directly by the Building Owner/s or through/ with the separately-commissioned RLA or RLEnP to jointly collaborate on the planning and design of the water supply system. E-44 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Checklists Shall a responsible and sufficiently experienced/ trained person be in charge of the water management program for the BUILDING? Is the area for water collection, storage, etc. protected from contamination, secure and amply buffered/ segregated from other activity areas? E.5.5 Solid Waste Guidance E.5.5.1 Applicable Definitions Waste Solid Waste Solid Waste Management E.5.5.2 Segregation of organic and inorganic solid wastes must be performed immediately after collection. Ideally, separate waste bins must be supplied at the source so that segregation is done earlier, but this may be difficult to implement/ maintain. The following practice of color-coding solid wastes may be followed: Green garbage bags for biodegradable wastes e.g. materials that decompose or that can be reduced to finer particles such as kitchen and garden wastes; Black garbage bags for non-biodegradable wastes e.g. materials that do not decompose such as plastics, styropor, tetra-packaging, ceramics, glass, construction debris (concrete, metals and the like); Yellow garbage bags for pathological/ infectious wastes e.g. used cotton/ gauze/ bandages/ strips, used sanitary napkins/ tampons/ condoms, used tissue paper/ table napkin, hospital/ medical./ dental wastes, body or animal parts, cadavers/ carcasses, body fluids, blood, used dental or medical implements, syringes and the like; and organic or inorganic waste matter that is solid i.e. three (3)dimensional in form, that results from any type of human/ artificial activity or from natural occurrences/ processes and that must be removed from a site for a valid reason; this includes garbage, rubbish and also excreta; and Transparent garbage bags for types of waste to be identified by the users. a process of collecting, storage and disposal (through removal, fill, composting, breakdown, treatment, recycling, creative re-use, etc.) of solid waste matter for economic and social (including environmental) gain; management entails planning, supervision and monitoring of solid wastes and handling facilities and the enforcement of guidelines for their safe and economical re-use or disposal. Sorting and storage facilities must be well away from activity or guest areas so that foul odors do not permeate such areas. Do not store organic solid wastes (particularly kitchen and leftover food or food waste) on-site as these readily decompose, attract pests and unwanted insects/ animals and emit foul odor. Hauling or removal off-site should be done either late at night or dawn when most end-users are away. The use of open dumpsites is absolutely discouraged as it is a major health hazard. General Requirements E.5.5.5 Solid waste incineration is an unlawful practice under the Clean Air Act. Solid Waste Prevention Strategies Any waste management system must be integrated with that of the rest of the host community and the LGU. Limit the use of paper products within the BUILDING as much as possible e.g. use of electronic files instead of hardcopies (wherever applicable). Awareness Actively promote waste segregation and recycling practices on-site by giving endusers/ visitors and staff incentives to do so. Solid waste handling or disposal sites must never be allowed in identified preservation and conservation areas, particularly within watersheds (or portions thereof, including downstream areas). The applicable provisions of the Solid Waste Management Act (and its IRR) and the pertinent referral code/s covering the waste handling/ management requirements of the proposed Project must be fully satisfied. A RLEnP, with specific expertise/ specialization and/or experience in environment consulting, must be commissioned directly by the Buulding Owner/s or through/ with E-45 Collection and Handling Solid waste collection must be performed routinely every 12 hours if possible. a damaged, defective or superfluous organic or inorganic material, whether liquid, solid or gas, resulting from any type of human/ artificial activity or from natural occurrences/ processes, that is rejected for use and necessitates physical removal from a site for health, safety, environmental, social and other valid reasons; A solid waste management program for the Project must be well coordinated by all stakeholders (public and private sectors) as it is not the sole responsibility of the public sector i.e. BUILDING end-users/ visitors. E.5.5.3 E.5.5.4 the separately-commissioned RLA, to collaborate on the planning and design for the solid waste management system (SWMS). If land is available, composting should be considered to realize zero organic waste. E.5.5.6 Checklists Shall a responsible and sufficiently experienced/ trained person be in charge of the solid waste management program for the BUILDING? Is the disposal area (including areas for collection, storage, fill, composting, breakdown, treatment, recycling) provided with a separate access system? E-46 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.5.5.7 E.5.5.8 Where is the removed/ hauled waste being deposited? It must be the solid waste source point’s i.e. the waste generator’s business to find out exactly where the waste is destined because it may just be deposited in a nearby area which could eventually affect the source point’s operations/ safety. The applicable provisions periodic issuances of the Department of Energy (DoE) shall be used as the primary reference for energy conservation in the BUILDING and its grounds. Energy Management usable sources of natural or artificially generated/ sourced power such as heat, fuel, wind, moving water, wave/ tidal action, geothermal, muscle, decomposition (biogas), electricity, natural fuels (firewood), combinations thereof and the like, that can be harnessed for use economically and without much negative effect on the environs/ setting of the energy source (to include considerations for human/ animal/ plant communities); E.5.5.11 Design Considerations The use of independently-supplied power is the most ideal source for light and electricity i.e. generator (preferably diesel, silent-type). A backup generator should be on board. E.5.5.12 If a 24-hour generator is used, it may have to be installed along with a waterproduction unit that can also operate for 24 hours. Noise and fume abatement measures must all be in place. Conservation To maximize cooling of structures/ buildings, the correct architectural orientation with respect to sun and wind must be prioritized, sometimes over view orientation. Passive cooling techniques, wide/ extended overhangs and other green architecture (GA) solutions or tropical architecture devices should be widely employed in the planning and design of the mixed use structures/ buildings. a managed system/ procedure of acquiring, accessing, storing, distributing, conserving (including possible recycling) of safe sources of power secured from commercial or other sources; management entails planning, supervision and monitoring of use and consumption of the resource and the enforcement of guidelines for safe and economical power usage. Positioning structures under/ behind/ beside exterior natural or artificial shading devices should be practiced i.e. ornamental or shade trees, heat-reflecting or absorbing (as applicable) walls or greenery, etc. Use light exterior colors for the structures to reflect unwanted light and heat and provide for a cooler interior. Awareness A properly registered and licensed Professional Electrical Engineer (RLPEE) must be commissioned directly by the Building Owner/s or through/ with the RLA or RLEnP to collaborate on the planning and design of the energy system (including all electrical devices). The planning and design of systems for electronics and communications devices are best handled by a properly registered and licensed Electronics Engineer (RLEE) while the planning and design of the mechanical systems of the proposed development shall be by a properly registered and licensed Professional Mechanical Engineer (RLPME). An electrical inspection must be satisfied for the renewal of the annual LGU-issued permit to operate the mixed use facility. A mix of power sources is recommended so that any system shall not be overly dependent on one (1) power source. a limited and closed/ controlled commercial system involving power generation and distribution for domestic and other uses by consumers; and The applicable provisions of Rule XIII (Electrical and Mechanical Regulations) of the 2004 Revised IRR of the NBCP and the pertinent referral code/s covering the power/ mechanical (heating, ventilation, air-conditioning, refrigeration, etc.) requirements of the proposed Project must be fully satisfied. General Requirements Electrical plans/ designs and an accomplished Electrical Permit application form, duly signed/ sealed by a RLPEE, is required prior to commencement of the applicable level of construction work involving electrical work. Applicable Definitions Energy Supply E-47 E.5.5.10 Energy Guidance Energy E.5.5.9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.5.5.13 Electric fans are preferred over air-conditioners. However, the Project must always offer end-users the option to avail of either means of artificial ventilation. Efficiency Use only low consumption - high output electrical devices. E.5.5.14 Use only rated electrical devices to be able to monitor consumption properly. Renewable Energy Resources If the technology becomes fully accessible at a low acquisition/ operating/ maintenance cost, the use of devices that can economically harness solar, wind, tide/ wave and geothermal power in appropriate quantities for domestic use should be promoted. E-48 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.5.5.15 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Checklists The most efficient combination of luminaires, lamps and ballasts appropriate for the lighting task and for the environment shall be selected so that lamp light output is used effectively. The selected luminaire should meet the requirements with respect to light distribution, uniformity and glare control. The use of highly polished or mirror reflectors are recommended to reduce the number of lamps installed without reducing the illumination level. Where ballasts are used, these should be of the electronic type or low-loss type with a power factor of at least 85%. Shall a responsible and sufficiently experienced/ trained person be in charge of the energy management program for the BUILDING? E.5.5.16 Is the area for energy generation, interface, storage, etc. safe, secure and amply buffered/ segregated from other activity areas? Energy Efficient Lighting Design The highest practical room surface reflectance should be considered in the lighting design. The use of light finishes will attain the best overall efficiency of the entire lighting system. Dark surfaces should be avoided because these absorb light. (Table 3.3 of the DoE Guidelines on Energy Conserving Design of Buildings lists the recommended room surface reflectances.) There are multiple sustainable design provisions under the 2007 Department of Energy (DoE) Guidelines on Energy Conserving Design of Buildings, particularly under its Section 3.3 (General Requirements of Energy-Efficient Lighting Design). These all form part of nationally-instituted energy efficiency guidelines that are all intended to conserve power, a design and construction practice that has a positive effect on both the natural and built environments. E.5.6 Selective switching possibilities should be provided so that individual or specific group of fixtures can be turned off when not needed and lighting levels can be adapted to changing needs. Hereafter is the list of key energy efficiency guidelines (particularly with reference to the lighting of the building) to help make buildings of truly sustainable design i.e. effectively making Green Buildings. The lighting system shall be so designed (such) that day-lighting can be coordinated with artificial lighting, taking into consideration the problems of glare, brightness imbalance and heat buildup in the building interior. General Requirements of Energy-Efficient Lighting Design The lighting design shall utilize energy-efficient lighting equipment. The lighting system shall be chosen (so) as to provide a flexible, effective and pleasing visual environment in accordance with the intended use, but with the least possible energy requirements. The use of task-oriented lighting shall be used whenever practicable. In the design of general lighting in buildings with centralized air-conditioning equipment, consideration should be given to integrated lighting and air-conditioning systems which use luminaires with heat removal capabilities. The lighting system shall be designed for expected activity. The task shall be analyzed in terms of difficulty, duration, criticalness and location in order to determine the lighting needs throughout the space, always keeping in mind that higher illumination levels than necessary are likely to waste energy while on the other hand, levels lower than needed could impair visual effectiveness. (Table 3.1 2007 of the DoE Guidelines on Energy Conserving Design of Buildings lists the recommended illuminance levels.) The most efficient lamps appropriate to the type of lighting, color rendition and color appearance shall be selected. The use of such types of lamps reduces power requirements. (Refer to Table 3.2 of the DoE Guidelines on Energy Conserving Design of Buildings re Efficacy Ranges and Color Rendering Indices of Various Lamps.) In selecting lighting systems, the costs of operation and energy usage and not simply the initial cost should be considered.” E.5.7 Sustainable Design for Buildings E.5.7.1 Basic Sustainable Design Compliances with P.D. No. 1096, the 1977 National Building Code of the Philippines (1977 NBCP) There are several basic sustainable design provisions under P.D. No. 1096 (otherwise known as the 1977 National Building Code of the Philippines (NBCP), particularly under its 2004 Revised Implementing Rules and Regulations (IRR), and partly under some of its Referral Codes (RCs, covering certain building safety aspects and physical planning/ building design sensitivities) and under some derivative regulations (RCs). These all form part of nationally-instituted sustainable development controls that are all intended to prevent over-building and over-paving, both nuisance practices by some building designers and constructors that have a very negative effect on both the natural and built environments. Below is the matrix showing an example of the application of the basic sustainable development controls under P.D. No. 1096 (NBCP) to help make buildings of truly sustainable design i.e. effectively making Green Buildings. In general, the normal artificial light source should be the fluorescent lamp. In downlight installation, high-pressure discharge lamps can be used. In large high bay areas, high-pressure discharge lamps should be used. Where good color rendering is required, the tubular fluorescent lamp and other high-pressure discharge lamps except high-pressure sodium lamps should be used. However, if moderate color rendering is of comparatively minor importance, high-pressure sodium lamps can be used. If very good color rendering is required, the tubular fluorescent lamp should be used. E-49 E-50 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures which do not provide transparency to the interior. Only exterior wall surfaces are counted in the ratio, and not roof surfaces. Table E-6 The WWR is often a factor in the energy efficiency of a building, with a low ratio generally indicating better efficiency as windows usually perform less well than the rest of the exterior walls as a thermal barrier. Note however that while windows may not be thermally ideal due to the heat that is permitted to penetrate the building interior i.e. which has to be balanced by artificially cooling the building interior, its energy efficiency value lies in the amount of natural light that it draws inside the building i.e. thereby helping reduce the artificial lighting load. Example of the Application of the Basic Sustainable Development Controls under P.D. No. 1096 (NBCP) Applicable Basic Sustainable Development Compliances with Basic Sustainable Development Control/s Control/s Under P.D. No. 1096 (the 1977 NBCP) as applied to a Public School Building Project Development Control to be Satisfied Compliances by the Remarks on a Corner-Through Lot (or a Corner Lot for a Public School Building Project Abutting 3 or More Streets) Building Project Allowable maximum building footprint (AMBF) or maximum percentage of site occupancy (PSO) AMBF or Maximum PSO Building Footprint of Fully compliant and is set at 60.0% of the Total 3,198.12 sqm results in a LOWER than the maximum Lot Area (TLA) of 5,464.64PSO of only 58.52% of thePSO by 1.48% of the TLA. sqm TLA Building Height Limit (BHL) BHL at 15.0 meters (or 5 BHL at only (approx.) 13.5 Fully compliant and is regular storeys) meters LOWER than the set BHL by 1.5 meters Floor to Lot Area Ratio (FLAR) Maximum FLAR at 2.5 times TLA Gross Floor Area (GFA) Maximum GFA at 2.5 timesGenerated GFA of approx.Fully compliant and is TLA 4,302.08 sqm is at only LOWER than the maximum (approx.) 0.79 of the TLA GFA by 1.71 times the TLA Total Gross Floor Area (TGFA) Maximum TGFA at approx.1.25 times GFA Total Window Surface Area (TWSA) to TGFA RatioTWSA at a minimum of 10% of TGFA Unpaved Surface Area (USA) or Unpaved Open Spaces The entry of controlled amounts of natural light into the building interior is an absolute necessity in helping prevent the sick building syndrome, engendered by the unchecked growth of harmful microorganisms e.g. spores, etc. that may thrive within dark and damp interior building spaces. Applied FLAR at only Fully compliant and is (approx.) 0.78 times TLA LOWER than the maximum FLAR by 1.71 times the TLA Generated TGFA of 5,377.6 Fully compliant sqm is at 1.25 times GFA TWSA at approx. 10.4% ofFully compliant and TGFA EXCEEDS the set minimum by 0.4% of TGFA Minimum USA at approx. Generated USA of 1,965.05 Fully compliant and 30% of the TLA sqm is at approx. 35.96% of EXCEEDS the set minimum the TLA by 5.96% of TLA Minimum Required Parking Slot, Parking Area and One (1) car slot for every Off-RROW (street) open Fully compliant Loading Space Requirements five (5) classrooms: one (1)parking provisions include: off- road right-of-way Eight (8) slots facing the (RROW/ street) (or offNEC Building; street) passenger loading One (1) off- road right-ofspace that can way (RROW/ street) (or offaccommodate two (2) street) passenger loading queued jeepney/ shuttle space that can slots; and one (1) school accommodate two (2) queued jeepney/ shuttle bus slot for every two hundred (200) students slots; one (1) school bus slot for every two hundred (200) students; and two (2) parking slots for loading/ unloading trucks (which can accommodate 4 regular cars when not in use). While not explicitly provided for in the 2004 Revised IRR of the 1977 NBCP, the window-to-wall ratio (WWR) of a building is the percentage (%) of a building's facade taken up by windows i.e. the percentage of the exterior building walls taken up by light-transmitting (i.e. transparent or translucent glazing) surfaces, including windows and translucent surfaces such as glass bricks, thereby implying that natural ventilation via operable windows is not necessarily a factor in the determination of the WWR. The WWR does not include glass surfaces used ornamentally or as cladding, E-51 Based on certain trends, it may be reasonable to say that for a typical building, an optimal 30% WWR for hot-humid tropical settings (like in the Philippines) may be enough to exploit daylight (i.e. too much daylight inside the building interior is also not a desirable situation), since there is no significant increase in daylight availability for larger or taller window sizes and since there is need to balance the intensity of the building interior-penetrating daylight via opaque surfaces. E.5.7.2 As an example, a WWR of 29.0% is well within the desired WWR range, helping make the building truly sustainably designed i.e. effectively making it a Green Building. Carbon Reduction (and Embodied Energy) of Construction and Finishing Materials Specified/ Used for Buildings Carbon reduction is a complex challenge for all organizations, not least those in the construction industry i.e. taking a comprehensive view of the construction sector value chain means considering all aspects of the design, construction, use (and demolition) of buildings and infrastructure, beyond simple occupancy itself. Any energy efficiency improvements in building occupancy mean that the carbon emitted indirectly through the supply chain could form an even larger proportion of that building's lifetime footprint. This indirect, embodied carbon (or spent energy) arises from the extraction of various raw materials, the energy intensive processes associated with the manufacture, handling/ transportation/ delivery, installation, use, maintenance, etc. of the building materials, and the activities of a multitude of constructors i.e. embodied energy of construction and finishing materials as discussed in the previous section. With the processes to be monitored and managed lying beyond direct control of the industry's main developers and prime constructors, construction organizations must reduce carbon throughout their extended supply chains. After all, this is a growing priority because, in addition to the environmental benefits, where there's carbon there's cost, and where there's cost there could be savings i.e. benefits to both the building owner and the general public. Hereafter are some concepts that were partially or substantially incorporated in the physical planning and design of a building project: Review the selection of raw materials: The extraction, production and transportation of basic construction materials are both energy- and carbon-intensive, E-52 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures so it is critical to select suppliers of building products and materials who are actively working to manage their own carbon impacts. Investigate the origin of the raw materials: Natural stone, for example, produces minimal emissions during the production process but the transportation from the source to manufacturing site can be the largest cause of emissions, e.g. in transporting from quarry sites. In such cases, managing the transportation process is crucial to managing supply chain emissions. This contrasts with concrete where typically the carbon emissions during production are much higher than those released during transportation. Consider construction phase emissions: Key factors contributing to construction process emissions include the multiple, temporary sites, transportation, waste arising, and heavy machinery which are common for large building projects. Consider how to influence the occupancy and use of buildings and infrastructure: These “downstream” emissions are generated in the occupancy/ use phase but are greatly influenced by specifications from architects, choices made by developers and building owners, and from the way the buildings are used by the people who ultimately work and live in them. The purpose and design of a building also contributes to its embodied carbon. The people using it, the use of lighting, heating, ventilation and air conditioning, and the proportions and differing insulating properties of glass, metal, concrete, masonry (plaster, brick, etc.) and wood can all have a tangible impact on the carbon footprint. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures does the device produce more energy or save more energy than it took to make it (or make it usable/ beneficial)? Embodied energy is an accounting method which aims to find the sum total of the energy necessary for an entire product life-cycle. Determining what constitutes this life-cycle includes assessing the relevance and extent of energy into raw material extraction (sourcing), transport (and handling), manufacture, assembly, installation, dis-assembly, deconstruction and/or decomposition (and disposal) as well as human and secondary resources. Different methodologies produce different understandings of the scale and scope of application and the type of energy embodied. Source : Wikipedia (with some additions/ edits from PTCC Project Team) A matrix showing the embodied energy levels of the construction and finishing materials specified and used for a typical public building is provided in Table E-7. Most of the construction and finishing materials specified/ used for the sample public building are locally sourced and have only low to medium qualitative embodied energy ratings, thereby helping make the building of truly sustainable design i.e. effectively making it a Green Building. Being mindful of these factors, good examples of design, coupled with good occupier habits and behaviours, can generate a lower carbon impact during end use as well as construction e.g. buildings using locally-sourced, sustainable timber, ground-source heat pumps using natural energy to provide heating and cooling, rainwater harvesting and grey water recycling facilities to provide 100% of toilet water use and thereby help to reduce overall water consumption by as much as 20%. Key concerns for the design and construction teams were: Manage carbon throughout the construction supply chain/s; Measure the footprint of individual products in order to identify carbon “hot spots” (carbon intensive areas e.g. Areas with equipment that are heavy power users) and focus efforts on carbon reduction; Suggest the use of suppliers that offer low carbon products and those that can demonstrate a consideration for both the direct and indirect impacts of their products and services; Conceptualize a carbon strategy and implementation plan; and Understand the likely carbon footprint generated in the occupancy/ use phase, and encourage the building owner/ end-users to plan for sustainability throughout the useful life of the building. Source : carbon trust : building a lower carbon construction Industry (with paraphrasing and additions/ edits from PTCC Project Team) Embodied Energy is the sum of all the energy required to produce goods (materials) or services, considered as if that energy was incorporated or “embodied” in the product itself. The concept can be useful in determining the effectiveness of energyproducing or energy-saving devices, or the "real" replacement cost of a building, and, because energy-inputs usually entail greenhouse gas emissions, in deciding whether a product contributes to or mitigates global warming. One fundamental question is: E-53 E-54 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table E-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Embodied Energy Levels of the Construction and Finishing Materials Specified and Used for a Typical Public Building Common Building Construction or Architectural Finishing Materials for A Typical Public Building Material Source Qualitative Embodied Energy Rating (EER) of Materials Used Local Negligible to Low to High to Very Low Medium Very High Foreign Common Building Construction Materials Used √ Premium termiticide concentrate x Pre-mixed concrete x √ Basic steel (hot-dipped galvanized) x √ Zinc-chromate corrosion resistant agent x Bituminous waterproofing paint x Extruded aluminum frames x Tanguile lumber (kiln-dried) x √ Medium density fiberboard (MDF) x √ √ √ √ Membrane waterproofing x √ Cementitious waterproofing, 90 mils thick x √ Pre-painted long span cold roll steel, coil coated (pre-painted) aluminum zinc alloy roof panels x √ 19 mm tempered glass sheets with film for UV protective layer x √ Tanguile marine plywood x Polyvinylchloride (PVC) conduit x √ Intermediate metal conduit (IMC) x √ Electrical metallic tubing (EMT) x √ Flexible steel conduit (FSC) x √ Thermoplastic insulated wire (TIW) and cables (TIC) x √ Thermoplastic cover plates for wiring devices x Diesel engine electric generating unit with accessories, auxiliary equipment √ √ √ Long fluorescent: T-8, 3000K, energy-savings type x √ Electronic digital ballasts (EDB) x √ Galvanized iron, (GI) main water lines, schedule 40 x √ x √ Common Architectural Finishing Materials Used E-55 Negligible to Low to High to Very Low Medium Very High Foreign √ x x √ 9. Gypsum wallboard and ceiling board x √ 10. Metal spandrel ceiling for eaves 11. Acoustical boards, fine- fissured 12. Toilet fixtures, vitreous china 13. Toilet compartments, 12 mm thick “phenolic” board with laminate finish √ x x √ √ x x √ 1. All paints (non-toxic and contain an effective amount of fungicide x and mildew-proofing agent to prevent the paint from showing a mold growth or shall be inherently fungistatic by the nature of their constituents) √ 2. Flatwall & quick dry enamel, oil-based x √ 3. Gloss varnish, lacquer solvent x √ 4. Exterior wall masonry liquid water repellant, water-based alkyl silane x √ 5. Plain cement floor x √ 6. Ceramic tiles, heavy traffic x √ Initially Calculated Carbon Footprint for a Typical Low-Rise Public Building "A measure of the total amount of carbon dioxide (CO2) and methane (CH4) emissions of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system or activity of interest. Calculated as carbon dioxide equivalent (CO2e) using the relevant 100-year global warming potential (GWP100)." √ x High density polypropylene pipes to fixtures, type 3 (or high density cross-linked polyethylene pipes), type PE-Xa with disinfectionresistant compression sleeve fittings Local A carbon footprint has historically been defined by Championne as "the total sets of greenhouse gas (GHG) emissions caused by an organization, event, product or person." However, calculating the total carbon footprint is impossible due to the large amount of data required and the fact that carbon dioxide can be produced by natural occurrences. It is for this reason that Wright, Kemp, and Williams, writing in the journal Carbon Management, have suggested a more practicable definition: √ x x Qualitative Embodied Energy Rating (EER) of Materials Used 8. Epoxy paint E.5.7.3 x Receptacles, hospital grade, 220V, grounding type 7. Vinyl floor tiles Material Source √ High pressure laminate (HPL) Annealed copper wire for conductors Common Building Construction or Architectural Finishing Materials for A Typical Public Building Greenhouse gases can be emitted through transport, land clearance, and the production and consumption of food, fuels, manufactured goods, materials, wood, roads, buildings, and services. For simplicity of reporting, it is often expressed in terms of the amount of carbon dioxide, or its equivalent of other GHGs, emitted. Most of the carbon footprint emissions come from "indirect" sources, i.e. fuel burned to produce goods far away from the final consumer/ end-user. These are distinguished from emissions which come from burning fuel directly in one's car or stove, commonly referred to as "direct" sources of the consumer's/ end-user’s carbon footprint, where the term end-user can refer to the building constructor, owner and/or occupants. The concept name of the carbon footprint originates from the concept of the ecological footprint, discussion for which was developed by Rees and Wackernagel in the 1990s, and which estimates the number of "earths" that would theoretically be required if everyone on the planet consumed resources at the same level as the person calculating their ecological footprint. However, carbon footprints are much more specific than ecological footprints since they measure direct emissions of gases that cause climate change into the atmosphere. Measuring Carbon Footprints An individual's, nation's, or organization's carbon footprint can be measured by undertaking a GHG emissions assessment or other calculative activities denoted as carbon accounting. Once the size of a carbon footprint is known, a strategy can be E-56 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures devised to reduce it, e.g. by technological developments, better process and product management, changed Green Public or Private Procurement (GPP), carbon capture, consumption strategies, and others. Several free online carbon footprint calculators exist, where the pertinent websites ask you to answer more or less detailed questions about transportation choices, building size, activities, usage of electricity, heating, and heavy appliances, etc. The website then estimates the carbon footprint based on the answers to such questions. The mitigation of carbon footprints through the development of alternative projects, such as solar or wind energy (done onsite or offsite) or reforestation (done offsite), represents one way of reducing a carbon footprint and is often known as carbon offsetting. The main influences on carbon footprints include population, economic output, and energy and carbon intensity of the economy. These factors are the main targets of individuals and businesses in order to decrease carbon footprints. Scholars suggest the most effective way to decrease a carbon footprint is to either decrease the amount of energy needed for production (including construction) or to decrease the dependence on carbon emitting fuels (during actual building use/ occupancy). Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Table E-8 Initially Calculated Carbon Footprint for a Typical Low-Rise Public Building Non-Food Carbon-Consuming Components for a Typical Low-Rise Public Building During Construction Onsite and During Projected Use/ Occupancy of the Building (Over a One Year Period) B. Calculated Carbon Footprint Quantity Carbon Dioxide Unit of Carbon equivalent (CO2e) Consumption in metric tons (MT) Initially Calculated Non-Food Carbon Consumption During Construction Onsite (Over an Aggregated One Year Period) Lighting and power consumption onsite Say 36,000 KwH 20.03 LPG (cooking gas for worker meals) Say 1,430 Liter 2.10 Three (3) service vehicles i.e. mainly cars and SUVs aged Say 429 from six (6) to ten (10) years old Vehicle Unit 76.44 Two (2) service vehicles i.e. mainly trucks aged from six (6) Say 572 to ten (10) years old Vehicle Unit 101.92 Fuel for Various Heavy Equipment onsite Liter 4.20 Say 2,860 Subtotal for I. 204.69 Initially Calculated Non-Food Carbon Consumption During Projected Use/ Occupancy of the Building (Over the First One Year Period) Lighting and power consumption Say 72,000 KwH 40.05 LPG (cooking gas for cafeteria) Say 1,430 Liter 2.10 Other Ways to Reduce Carbon Footprint Ten (10) service vehicles i.e. mainly cars and SUVs aged Say 1,430 from six (6) to ten (10) years old Vehicle Unit 254.80 The most common way to reduce the carbon footprint of humans is to Reduce, Reuse and Recycle. The reduction of the carbon footprint is addressed in the previous section on carbon reduction and embodied energy of construction and finishing materials for the building. Nothing should be disposed off into the soil i.e. all the ferrous (metal) materials which are prone to degrade or oxidize with time should be sold as early as possible at reduced price. This can also be done by using reusable items rather than disposable ones. If that option isn't available, it is best to properly recycle the disposable items after use. When one recycles at least half of their waste, they can potentially save a minimum of 1.2 tons of carbon dioxide annually. Two (2) service vehicles i.e. mainly trucks aged from six (6) Say 572 to ten (10) years old Vehicle Unit 101.92 Subtotal for II. 398.87 Total for I. and II. 603.56 Yet another option for reducing the carbon footprint of humans is to use less airconditioning in the building i.e. introduce passive cooling techniques since the Philippines is in a hot-humid tropical location. By adding insulation to the walls and roof of a building, and installing weather-stripping around doors and windows, one can also lower their artificial ventilation costs. Setting the thermostat just two (2) degrees lower in summer could potentially save about 1 ton of carbon dioxide each year (for possibly each cooling unit). Source: Wikipedia (with some additions/ edits from PTCC Project Team) Based on the use of the UK-based Carbon Footprint calculator (at http://www.carbonfootprint.com/calculator.aspx), the matrix hereafter shows that the approximated carbon footprint for a typical low-rise public building during its construction (aggregated 1.0 year period) and initial use/ occupancy (over its first 1.0 year period), which altogether may total 603.56 metric tons (MT) in carbon dioxide equivalent (CO2e) units, a relatively low building carbon footprint, thereby helping make the building of sustainable design i.e. effectively making it a Green Building. E-57 E-58 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.6 Non-Mobile Billboards (NMBs)/ Electronic Displays and Signages Policy: It is the declared policy of the State to ensure an improved quality of life for all through continuing efforts to improve the natural/ built and physical/ non-physical environments. It is also the policy of the State to preserve public spaces as public domain and not to allow the use of such spaces for private enjoyment nor benefit. Definition of Terms: As used in these DGDG, the following terms shall be as defined hereafter: “ABO” or Acting Building Official is the official designation of the DPWH for its LGU appointees under Sec. 477 of the LGC, and who are tasked with the implementation and enforcement of the NBCP and its derivative regulations. “Air Right” means the right to physically develop and subsequently benefit or profit from the continued use of the air space above the NATIONAL AND LOCAL road rightof-way (RROW) or other NATIONAL AND LOCAL rights-of-way (ROWs) or legal easements or private/ public property outside or along such ROWs or easements within the jurisdiction of the pertinent LGU, subject to the payment of lease to the appropriate public party for availing of such rights. The upper limit of the air rights is the airways navigational path such as the clearance limits of aerodrome and flight patterns (particularly for helicopters using helipads within the LGU) and the partial availment of such air rights shall require the official evaluation and permission of the Civil Aviation Authority of the Philippines (CAAP). “Alignments” are the surface areas/ spaces traversed by a NATIONAL RROW, similar ROWs, legal easements or similar public spaces within the LGU, which form part of the public domain and are therefore disallowed sites for non-mobile billboards. “barangay” means the basic government unit distinct from the LGU. “Billboard and Electronic Display” means an attention-getting device in the form of notices/ signages/ graphics/ images visible to public view, that are designed to promote, entice, sell, offer, for commercial purposes, a product or services, and consisting of a support structure, a display or message area, a lighting system and related components. The term also refers to all types of identification, description, illustration, images, pictures, display or device which is affixed to or represented directly or indirectly upon a portion of a building/ structure, support structure or land and which directs attention to a product, place, activity, person, institution, business, idea or belief. The term shall be generic and shall collectively refer to but not be limited to multi-media or tri-vision billboards, neon, electronic displays or other illuminated signs, painted signs and the like. The classifications of the key types of billboards that may be erected at the defined regulated areas under these DGDG; nonmobile billboards (NMBs)/ electronic displays shall only be permitted in the zones defined under these DGDG while the Permitted Construction shall only be within private lots inasmuch as NMBs/ electronic displays are prohibited in all parts of and types of ROWs i.e. streets, utilities, rivers/ water bodies, including mandated legal easements (MLEs), unless specifically recommended under these DGDG; “Billboard or Electronic Display Unit” or “BEDU” shall refer to one (1.0) independent NMB or electronic display with a total display area of anywhere between seven point five square meters (7.5 sqm) minimum to two hundred twenty five square meters (225.0 sqm maximum, including border and trim but excluding supports) maximum for existing/ proposed NATIONAL urban RROWs/ ROWs within the LGU. For NMBs/ E-59 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures electronic signs mounted on facades of buildings, the BEDU shall be sized in accordance with the zoning classification and in proportion to the building height limit (BHL), architectural projections and outermost face of buildings/ billboards (OFB), the outermost limit of building projections (OLBP) and the permissible proportions of openings/ fenestrations for mandated natural light and ventilation and related provisions under the NBCP as well as the various safety provisions under the FCP, duly determined by a RLA. “Building Height Limit or BHL” means the maximum height to be allowed for a building/ structure based on their proposed use/occupancy. As defined under the NBCP, the BHL is generally measured from the established grade line to the topmost portion of such a building/ structure, inclusive of a non-mobile billboard mounted on top of such a building/ structure. Under this Ordinance, BHL shall also mean Billboard Height Limit. “Cantilevered Support Structure” means a support structure that is not directly planted on the ground or any portion of the national RROW, similar ROWs or legal easement within the LGU; such a structure may rest on a portion of a building or another support structure not originally planned/ designed to support a billboard; a cantilevered structure is necessary so that the effective width of the sidewalk or similar components of the RROW are neither compromised nor lessened; “Carriageway” or “Roadway” means the portion or component of a national RROW within the LGU, on which land-based transportation conveyances such as motor vehicles are allowed to pass or park. For national RRROWs within the LGU, the term may be “Railway” and for national WROWs within the LGU, the applicable term may be “Waterway” or “Vessel-way”. “Content” means the message and image components of a billboard or electronic display which may be advertising, commercial, directional or general public information in intent. “DILG” means the Department of Interior and Local Government. “DOTC” means the Department of Transportation and Communication which maintains exclusive control over certain types of national ROWs and RROWs. “DPWH” means the Department of Public Works and Highways which maintains exclusive control over national road rights-of-way (RROWs) within the LGU and which is the primary implementing agency and enforcer of the NBCP, its 2004 or latest implementing rules and regulations (IRR), its applicable referral codes (RCs such as R.A. No. 9514, the 2008 FCP and its 2009 IRR, the National Structural Code of the Philippines/ NSCP, 2010 or latest edition, the Philippine Electrical Code, latest edition, the Electronics Code, if any in its latest edition, etc.) and its applicable derivative regulations (DRs including National Executive Orders (EOs), National Administrative Orders (AOs), DPWH Department Orders/ DOs, DPWH Department Administrative Orders/ DAOs and DPWH Memoranda Circulars/ MCs). “Display or Electronic Display” means the material or device mounted on the nonmobile billboard or electronic display support structure together with its content/ message. A display/ electronic display surface area in excess of one square meter (1.0 sqm), with a least dimension of one meter (1.0 m), shall be considered part of a NMB/ BEDU. “FCP” means the 2008 Fire Code of the Philippines, otherwise known as R.A. No. 9514 or its future iterations, duly supported by its 2009 and/ or latest IRR and/or related E-60 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures executive issuances by the DILG, the agency tasked with its full implementation and enforcement. “Firewall” means a reinforced masonry or reinforced concrete separator with the appropriate fire-resistive rating and which shall be positioned between buildings/ structures to maintain the fire integrity of each building/ structure. Firewalls that are erected along and/or above property lines utilize a substantial portion of the maximum development potential of a property and shall therefore have no openings except for the permitted vent wells specified under P.D. No. 1096, the 1977 National Building Code of the Philippines (NBCP) and its 2004 and/ or latest Implementing Rules and Regulations (IRR). Firewalls are not envisioned as a mounting surface for billboards and other types of display under the NBCP and its IRR as such billboards/ displays also constitute a fire and safety hazard to an adjoining property. “IRR” means the Implementing Rules and Regulations of this Ordinance. “Intersections” are common surface areas or spaces shared by two (2) or more national RROWs, similar ROWs or legal easements within the LGU, or a mix of such public spaces, which form part of the public domain and are therefore disallowed sites for non-mobile billboards. “LGC” - the 1990 Local Government Code, otherwise known as R.A. No. 7160 and its derivative regulations as implemented and enforced by the DILG. “LGU” – The Local Government Unit of Makati City, as defined under the LGC. “Legal Easement” means a public open space mandated under law that must be absolutely free of all forms of physical obstructions that can negatively affect natural light and ventilation within such a space or that can impede access to or the full recreational use of such a space by the general public. Legal easements also refer to the public area within the LGU that may lie between the legally usable portions of a private/public property and natural or built bodies of water or waterways. “Lighting System” means the luminaries/ complete lighting units, power source and connections, controls and all support structures/ devices that ensure the continuous illumination of a display/ electronic display. “MMDA” means the Metropolitan Manila Development Authority. “Minimum BEDU” shall refer to one (1.0) display with a total display area of seven point five square meters (7.50 sqm), with a least dimension of one meter (1.0 m). “Maximum BEDU” shall refer to one (1.0) display with a total display area of two hundred and twenty five square meters (225.0 sqm), with a least dimension of seven point five meters (7.5 m). “NBCP” means the 1977 National Building Code of the Philippines, otherwise known as Presidential Decree or P.D. No. 1096 or its future iterations, duly supported by its 2004 and/or latest IRR and/or related executive issuances by the DPWH, the agency tasked with its full implementation and enforcement, particularly in the case of the DPWH NBCDO Memorandum Circular No. 1, series of 2008. “NBO” or National Building Official is the official designation of the DPWH Secretary as per the NBCP. “Non-Conforming Billboard/ Electronic Display Unit (BEDU)” means any non-mobile billboard or electronic display lawfully constructed prior to the enactment of this Ordinance, but which thereafter fails to conform to its provisions. E-61 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures “Non-Mobile Billboard/ Electronic Display Unit (BEDU)” means a billboard/ electronic display positioned at a fixed location, usually along a NATIONAL road right-of-way (RROW) within the LGU, where it can be readily and continuously viewed by the passing public. “Official Signs” mean directional or information-conveying signs, in whatever form allowed under the IRR of this Ordinance, that are officially issued and erected by or through the national government or by the LGU for the purpose of public service. “PCE” - professional communications engineer. “PEE” - professional electrical engineer. “Property Line” means the imaginary or defined line or a set of such interconnected lines and denoting the limits of a property. “RLAr” - registered and licensed architect. “RLCE” - registered and licensed civil engineer. “RLEnP” - registered and licensed environmental planner. “ROW” means a national Right-of-Way, including the airspace and the leasable air rights above such a ROW within the LGU. “RROW” or national “Road-Right-of-Way” or “Street” means a public open space within the LGU, for the continuous flow of pedestrian and vehicular traffic, including the air space above such RROW, that must be free of all forms of prohibited physical obstructions. The national RROW or street within the LGU is the surface area lying between two (2) or more parallel properties and its width is horizontally measured from opposite property lines. “RRROW” means a national Railroad-Right-of-Way within the LGU, consisting of the railway/ tramway/ tracks on which the trains actually pass, the buffer areas on either side of the railway for operational safety and fixed facilities for passenger exchanges, inclusive of the airspace above such a RRROW. Regulated Area means all areas inside the boundaries of the LGU which are adjacent to and within fifty meters (50.0 m) of the edge of the national road right-of-way (RROW) within the LGU (applicable to NMBs only). “Residual Areas” are spaces that may fall outside the alignments or intersections of two (2) or more national RROWs, similar ROWs or legal easements or a mix of such public spaces within the LGU, which still form part of the public domain and are therefore disallowed sites for NMBs. “Scenic Vista” shall refer to a naturally occurring or a good combination of natural and artificial/man-made features in the viewable landscape and which offers the viewer a refreshing visual experience or respite. “Setback” means a one (1)-dimensional quantity denoting the level horizontal distance measured at a ninety degree angle (90˚) from the line formed by the outermost face of a building/ structure or billboard/ electronic display support structure to a property line, whereby both lines run parallel to each other. “Sidewalk” means the portion on each side of the national road right-of-way (RROW) within the LGU, for the exclusive use of pedestrians and the disabled who are in transit. E-62 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures “Signages” are devices limited to identifying location/ addresses and names of establishments, as distinguished from NMBs/ electronic displays which offer goods/ services to consumers, but like non-mobile billboards/ electronic displays, these are exposed to public view and therefore come under “public safety, public welfare, and public domain”, and as per local/ national enabling laws (e.g., R.A. No. 7160, the 1991 Local Government Code of the Philippines/ LGCP and its latest IRR), are therefore subject to the permitting processes, regulations, and the imposition of taxes, fees and charges by the LGU, as provided for in this Ordinance. “Support Structure” means the rigid framework on which the display/ electronic display or attention-catching device of a non-mobile billboard/ electronic display shall be mounted. The foundation and superstructure for part of the support structure. “Temporary Sign” means a sign made of fabric/ cloth, vinyl/ plastic or similar light and/or combustible material, with or without frame i.e., streamers, bills, posters and the like that are installed within or outside a ROW within the LGU, for display/public viewing for a limited period of time, subject to the issuance of the required permit/s. ‘Urban Design” - refers to the physical and systematic design undertaken by a RLA on a community and urban plane, more comprehensive than, and an extension of the architecture of buildings, spaces between buildings, entourage, utilities and movement systems, including the siting, sizing and placement of NMBs/ electronic displays and signages. “UROW” means the Utility Right-of-Way means the area within the LGU on which public utility lines e.g. power, telecommunications, water supply, drainage, sewer, gas, etc. are allowed to pass, including buffer/ safety zones, service/ maintenance areas and the airspace above such a UROW. “View Corridor” means the visually unobstructed width, depth and height of all available sight lines running through and along national RROWs, legal easements and similar ROWs, open spaces within lots including yards and courts or through and along designated public spaces including recreational areas within the LGU. View corridor also means specific ranges of sight lines from a building or structure to a specific natural or man-built object and/ or development considered of beauty or value. “WROW” means a national Water Right-of-Way found in inland waterways such as rivers, streams, canals and the like found within the LGU, and consisting of the waterway/ vessel-way on which boats/ ships/ barges pass, the embankments and portions of the shore areas used to access the waterway/ vessel-way, including the airspace above such a WROW. E.6.1 “Yard” means a two (2)-dimensional space consisting of the vacant land area between the outermost portion of a NMB/ electronic display including its support structure and the property lines. Regulation of NMBs/ Electronic Displays within a LGU Any NMB or electronic billboard erected, modified, retrofitted, rehabilitated or otherwise altered and exhibited shall comply with the following requirements: E-63 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.6.1.1 Position Within/ Along National RROWs, ROWs and Legal Easements within the LGU No NMB/ electronic display shall be located in a position that obstructs or obscures the view of vehicular or pedestrian traffic in such a manner as to endanger their safe movement thereof. NMBs shall not be erected in a manner that can confuse or obstruct the view or interpretation of any official traffic sign, signal or device. The outermost portion or projection of a NMB/ electronic display or its support structure or its lighting system shall be located at least five meters (5.0m) from the outermost line of the national street or RROW, RRROW, UROW, WROW, legal easement and the like. Non-mobile billboards/ electronic displays shall not be erected on any structure or portion thereof found within the national RROW, RRROW, UROW, WROW, legal easement and the like. The air rights over such ROWs and legal easements shall not be availed of for the purpose of erecting NMBs. As such, no part of a NMB shall extend over any part of the RROW at grade or above grade. Temporary signs, regardless of material, intended use and size, including electionrelated signs or signs showing the names and/or likeness of elective/ appointed officials, shall not be strung or installed over or across a national RROW, RRROW, UROW, WROW, legal easement and the like, unless otherwise permitted by the barangay concerned or by the LGU but in no case shall the period of display exceed seven (7) calendar days. The barangay or LGU must thereafter remove said temporary sign/s. Reckoned from the edge of the national RROW within the LGU, all large NMB/ electronic billboard displays i.e. in excess of thirty square meters (30.0 sqm) in display area shall have a minimum clear/ unobstructed viewing distance of twenty five meters (25.0 m). No NMB/ electronic display shall be located within more than two hundred meters (200.0m) of the outermost portion of all interchanges or of the outermost portion of the national right-of-way (ROW) of all underpasses, overpasses, bridges, tunnels, station/ terminal/ inter-modal/ multi-modal structures and the like or from the center of an intersection. For existing/ proposed national RROW widths of forty meters (40.0m) wide or wider, a distance of from fifty to one hundred and fifty meters (50.0m to 150.0m) shall apply. No part of a NMB/ electronic display including its support structure shall be placed on, in or over any public property/ domain, including national public/ transportation/utility ROWs or utility/drainage easements or upon telephone/utility poles or upon natural features such as trees, rocks and the like. In particular, nonmobile billboards/ electronic displays shall not be erected or maintained or violate the air rights above a carriageway/ roadway, railway or waterway/ vessel-way. NMBs/ electronic displays shall not be erected at residual areas at or along intersections of national RROWs, RRROWs, ROWs and legal easements or at or along intersections of such public spaces. NMBs/ electronic displays that may obscure or obstruct the view of vehicular or pedestrian traffic or that may interfere, imitate, resemble or be confused with official traffic signs, signals or devices shall not be permitted. No NMB/ electronic display that prevents a clear and unobstructed view of official traffic signs in approaching or merging traffic shall be permitted. E-64 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures No NMB/ electronic display that may impair any scenic vista or view corridor from the national RROW/ legal easement or from a building/ structure along such RROW/ legal easement shall be permitted. properties, unless a current and valid lease agreement for the use of such air rights exists. A NMB/ electronic display mounted on a fire-walled property shall not utilize the air rights of a private/ public property adjoining such a fire-walled property without the written consent of the property owner or lawful possessor of the affected property and without the permit of the barangay concerned or the LGU. In case of the presence of official consent by the affected property’s owner or lawful possessor for a firewallmounted NMB/ electronic display, the same may opt to share in the income that may be derived from the NMB/ electronic display in exchange for the use of the air rights. In case of the lack of consent or refusal by the affected property’s owner or lawful possessor for a firewall-mounted NMB/ electronic display, only a painted display may be placed on the firewall, still subject to the prior consent of the affected property’s property owner or lawful possessor and to the prior permission of the barangay concerned or the LGU. Neither a NMB/ electronic display mounted on the firewall nor a display painted on the firewall shall be allowed if there is lack of consent or official refusal/ objection by the affected property’s owner or lawful possessor. NMBs/ electronic displays may only be single-faced or double-faced. In the case of a double-faced NMBs/ electronic displays, the allowed display surface area/ BEDU on each face shall not exceed one hundred twenty five square meters (125.0 sqm) per BEDU/ display/ face, a maximum size that must be proportional to the RROW width e.g. for RROWs that are 40.0 m or wider, provided that applicable setback, yard and building height limit (BHL) requirements of the NBCP and its IRR are satisfied. Triple, quadruple or higher multi-faced non-mobile billboards/ electronic displays shall not be allowed as these are already configured as buildings or solid structures that unnecessarily block natural light and ventilation and pose public safety problems. E.6.1.2 NMBs/ electronic displays shall not be placed within or above any portion of a RROW or ROW, particularly at the sides, below or on top of the exterior of public structures such as elevated expressways and transit alignments/ stations/ terminals and the like which occupy the RROW, including the airspace/ air rights above such RROWs/ ROWs, but may be allowed at the enclosed sides of loading platforms and pedestrian access-ways at such public structures. Position within Private Property or Public Property Outside RROWs/ ROWs/ Legal Easements within the LGU (including those mounted on building facades and firewalls) All NMBs/ electronic displays shall be erected in conformity with the front, side and rear setback and yard requirements prescribed in the latest pertinent executive issuance pertaining to and/or the latest IRR of the National Building Code of the Philippines (NBCP), with the DPWH NBCDO Memorandum Circular No. 1, series of 2008 and in the applicable LGU zoning regulations. In case of conflict between such laws/ regulations, the provisions of the NBCP shall generally prevail. However, if the provisions under the pertinent LGU ordinance are more stringent than the NBCP, then such LGU ordinance shall prevail. NMBs/ electronic signs mounted on facades of buildings along a national RROW/ street shall be sized in accordance with the zoning classification and in proportion to the applicable setbacks, building height limit (BHL), the permissible proportions of openings/ fenestrations for mandated natural light and ventilation, outermost face of buildings/ billboards (OFBs) and outermost limits of building projections (OLBP) and related provisions under the NBCP as well as the various safety provisions under the FCP, duly determined by a registered and licensed architect (RLA). NMBs/ electronic signs mounted on facades of buildings and in between independent structures for NMBs along a national RROW/ street/ other ROW shall be similarly restricted as NMBs on independent structures, based on applicable development controls found in the NBCP and/or specific executive issuances of the DPWH Secretary, such as but not limited to NBCDO Memorandum Circular No. 1, Series of 2008, in his capacity as the National Building Official (NBO). No part of a NMB/ electronic display shall be placed on, in or over any private/ public property without the written consent of the property owner or lawful possessor and without the permit of the barangay concerned or the LGU. This particularly applies to NMBs/ electronic displays and their outdoor lighting provisions, as applicable, mounted on firewalls and deliberately intruding into the air rights of adjoining E-65 No NMB/ electronic display shall be erected or maintained upon or above the roof of any building/ structure if the same is in violation of the NBCP and its IRR, applicable executive issuances or more stringent laws. E.6.1.3 No NMB/ electronic display shall be constructed on a property where the same can obscure or shade the prescribed openings, windows or doors of adjacent buildings/ structures. NMBs/ electronic display shall not be made of reflective material that can redirect unwanted light towards adjacent buildings/ structures, particularly at residential structures at night time. NMB/ Electronic Display Spacing and Density Independent structures for NMBs/ electronic displays located upon or oriented towards traffic traveling upon the same side of a national RROW/ street at all its development levels at grade and above grade, with maximum permitted BEDU shall be spaced no less than five hundred meters (500.0 m) apart in the case of building exterior wall-mounted BEDU and no less than two hundred and fifty meters (250.0 m) apart in the case of freestanding or self-mounted BEDU. For narrower national RROWs, the spacing may be between a minimum of two hundred and fifty meters to a maximum of five hundred meters (min. 250.0 m – max. 500.0 m) depending on the allowed vehicle speeds on the RROW as determined by the DPWH. These foregoing distances shall be measured along a straight line between the two (2.0) nearest points of the NMBs/ electronic displays. The minimum spacing required shall not apply to two (2.0) displays viewed from different directions but which share a common support structure. Regardless of national RROW/ other ROW widths, NMBs/ electronic displays shall not be located within a one hundred meter (100.0 m) radius (radial distance) of another NMB/ electronic display even if the two (2.0) NMB s/ electronic displays are on different RROWs/ streets/ other ROWs. Building-mounted NMBs/ electronic displays located upon or oriented towards traffic traveling upon the same side of a national or LGU RROW/ street, with maximum permitted BEDU shall be spaced on a case-to-case basis as determined through the proper application of development controls mandated under the NBCP (minimum E-66 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.6.1.4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures standards) and/or under the pertinent LGU ordinance (with standards more stringent than that of the NBCP), duly prepared by a registered and licensed architect (RLA). satisfaction of the applicable setback, yard and building height limit (BHL), maximum architectural projection/ OLBP and/or outermost face of building/ billboard (OFB) requirements of the NBCP and its 2004 and/or latest IRR and the pertinent LGU Zoning Ordinance (ZO). Display Content and Lighting for NMBs/ Electronic Displays For Zone 2 (Along Secondary RROWs/ ROWs) All display content for NMBs/ electronic displays and temporary signs must conform to the standards set by the Advertising Board of the Philippines (a self-regulatory agency) and/or the government agency tasked or to be tasked with reviewing and approving the display. A NMB/ BEDU shall have a surface or display area of between seven point five (7.5) sqm minimum and thirty (30.0) sqm maximum for existing/ proposed national urban RROWs/ ROWs. The maximum dimension of any one (1.0) side of a maximum BEDU shall be one point five meters (1.5 m), subject to compliance with the applicable NMB height limitation under these DGDG. All display content exhibited in a foreign language shall similarly exhibit the corresponding translation in either English or the local dialect/s. No NMB/ electronic display with any commercial content shall be permitted within all properties zoned as residential nor within residential subdivisions. In the case of a new residential subdivision, only commercial NMBs/ electronic displays containing information on the residential subdivision shall be allowed. No NMB/ electronic display with any commercial content shall be erected within a two hundred meter (200.0 m) distance of the nearest property line of declared historic or cultural sites or of institutional sites such as schools, churches, hospitals, government buildings, public parks/ playgrounds/ recreation areas, convention centers, cemeteries or any other area which must be free of NMBs/ electronic displays with commercial content. E.6.1.5 E.6.1.6 Lighting: NMBs shall be illuminated only by luminaries exuding a fixed/ nonoscillating/ non-fluctuating amount of light that shall not produce glare or unwanted reflectance when directed at a display. All NMBs/ electronic displays shall be erected in conformity with the building height limits (BHL, also applicable as Billboard Height Limits), the outermost limits on building projections (OLBP) and the outermost face of buildings (OFB, also applicable as outermost face of billboards), duly prescribed in the 2004 and/or latest IRR of the NBCP and in the applicable LGU Zoning Ordinance (ZO) and related developmentoriented national and local laws and regulations. Allowable variations from the standard measurements per Zone shall generally conform with the following: A NMB/ BEDU shall have a surface or display area of between thirty (30.0) sqm minimum and two hundred twenty five (225.0) sqm maximum for existing/ proposed national urban RROWs/ ROWs. The maximum dimension of any one (1.0) side of a maximum BEDU shall be seven point five meters (7.5 m), subject to compliance with the applicable NMB height limitation under these DGDG. No freestanding NMB/ electronic display shall exceed twenty five meters (25.0 m) in height, measured from the average elevation of the surface of the natural ground or existing sidewalk or carriageway level (whichever is higher) up to the highest point of the NMB or any of its components. This maximum height is contingent on the prior E-67 Placement of Billboards/ Electronic Displays with respect to Emergency Exits, Doors and Windows. No NMB/ electronic display shall be erected in such a manner that any portion of its display or supports will interfere in any way with the free use or operation of any fire escape, emergency exit, door, window, standpipe and the like. A NMB/ electronic display shall not be erected, constructed and maintained so as to obstruct any emergency exit or other openings or to prevent free passage from one part of a roof to any part thereof. A NMB/ electronic display in any form or shape shall not in any manner be attached to a fire escape or be so placed as to interfere with an opening required for introducing natural light and ventilation into a building/ structure. This provision shall particularly apply to all tall buildings. Allowable Dimensions for Non-Mobile Billboard Displays/ Electronic Displays For Zone 1 [Along Major RROWs/ ROWs, at Planned Units Developments (PUDs) and at Special Development Zones/ SDZs] No freestanding NMB/ electronic display shall exceed twenty five (25.0 m) in height, measured from the average elevation of the surface of the natural ground or existing sidewalk or carriageway level (whichever is higher) up to the highest point of the NMB or any of its components. This maximum height is contingent on the prior satisfaction of the applicable setback, yard and BHL, maximum architectural projection/ OLBP and/or OFB requirements of the NBCP and its 2004 and/or latest IRR and the LGU ZO. E.6.1.7 NMBs/ electronic displays shall also not be used to wrap buildings to deprive occupants natural light, ventilation and view. This particularly applies to all types of residential and office buildings as well as above-grade parking buildings, where exhaust venting shall be severely compromised by such non-mobile billboards/ electronic displays, even if perforations are introduced. Responsible State-regulated Professionals for NMBs/ Electronic Displays As of the effective date of this Ordinance, the permit documents for the erection and maintenance of all NMBs/ Electronic Displays under these DGDG shall be as follows: Registered and licensed Architect (RLAr) for the Architectural and Urban Design Analyses; Registered and licensed Environmental Planner (RLEnP) for the Environmental Analyses; Registered and licensed Civil Engineer (RLCE) with specialization in structural design for the Structural Design and Analyses; E-68 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.6.1.8 Registered and licensed Professional Electrical Engineer (PEE) for the Electrical Design and Analyses for Non-Mobile Billboards; and Registered and licensed Professional Communications Engineer (PCE) for the Electronic Design and Analyses for Electronic Displays. General Regulations for Signages Temporary Signs: Temporary signs shall be limited to hangings such as buntings, banners and posters mounted on existing posts, fences or buildings – except in any part of the RROWs, shall have a life of thirty (30) calendar days, renewable, with the date of expiry printed on the sign, which shall be removed at owner’s expense or if removed by the LGU, removal costs shall be charged accordingly to the signage owner; signs on construction fences shall be allowed only for the duration of the construction work, and should be maintained at original quality at all times; events signs are considered temporary signs. Dimensions of signage and illumination: Signage dimensions shall range from a minimum of 0.045 sqm for address and occupant signs to a maximum of 6.0 sqm for event signs as well as building directory signs. The most common sign, the wall sign, shall range from 1.0 sqm to 3.0 sqm. Other building signs: Certain uses shall be allowed special signs. Places that serve as congregation areas for large crowds (e.g. places of worship; sports stadiums, racetracks, etc.) shall be allowed event signs to announce details of the occasion. Structures that have multiple tenants shall be allowed a building directory sign. Projecting signs shall be allowed for fire/ security stations and general/ specialized hospitals, medical centers. Petrol identification signs (pole signs) shall be specific to petrol filling kiosks/ service stations. For certain types of uses, signage regulations shall be consistent no matter the zone these are located in. These allowed uses include fire/ security stations; general/ specialized hospitals, medical centers; hotels; multi-family dwellings; parking structures; parks/ playgrounds/ gardens; petrol filling kiosks/ service centers; residential inns, condominiums/ condotels/ apartments; single-detached dwellings; supermarkets/ food stores; transit stations/ terminal; wet/ dry markets; and zoos, other nature centers. Detailed Signage Regulations Address & occupant signs: for buildings or structures shall be allowed a maximum area of 0.045 sqm (0.15 m x 0.3 m) and a height of between 1.2 - 1.6 m from sidewalk level, except for fire stations. For fire/ security stations, there shall be no limit to the dimensions for the maximum area. For signage locations and illumination, the allowed use and/or specific regulations shall be as discussed hereafter. Building identification signs and/or logo signs: Building identification sign and/or logo sign (halo-lighted, internally lighted or externally lighted) and building identification sign and/or logo sign (at top of building) shall be allowed a maximum area of 3.0 sqm, a height of not more than 4.0 m or not more than 4% of building height, whichever is smaller, and be located near the top of building. Building identification sign and/or logo sign, address sign (illuminated) shall be allowed a maximum area of 3.0 sqm, a minimum height of 2.2 m and a maximum height of 4.0 m, and shall be located at the ground floor of building façade near the E-69 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures wall entrance or at perimeter wall, gate or fence. The allowed maximum height of each letter is 1.0 m. Building identification sign and/or logo sign (canopy sign) shall be allowed at entrance canopy. The allowed maximum height of each letter is 0.6 m. Canopy signs: shall be allowed a minimum height from bottom of the sign to the finished surface of the sidewalk at 2.2 m and a maximum height from top of wall sign to sidewalk surface level of 4.0 m. For signage illumination, maximum areas, and locations, refer to the allowed use and/or specific regulations by zone hereafter. Events signs: shall be allowed a minimum height from the bottom of sign to sidewalk level of 2.2 mts. and maximum height from top of sign to finished surface of the sidewalk at 4.0 m, where the sign shall be located at the building façade near the entrance. For signage illumination and maximum areas, refer to the allowed use and/or specific regulations. Free-standing ground signs (e.g. building directory): shall not be higher than 1.8 m, shall have a minimum letter height of 0.2 m, and shall be located within the property line. If the 2nd floor finished floor line (FFLL) is less than 6.0 m from the finished sidewalk level, the minimum height shall be set at 3.0 m from finished sidewalk level to the bottom of sign while the maximum height shall be 6.0 m from finished sidewalk level to the top of sign. If 2nd floor FFL is more than 6.0 m from finished sidewalk level, the top of sign should not extend beyond 2 nd floor level. Signs are allowed up to 75% of width of frontage of rented space but shall not exceed 1.0 m high or 6.0 m wide, and the maximum projection allowed shall only be at 0.2 m from property line. Monument signs: shall be allowed a maximum area of 3.0 sqm including the base material which is attached to the ground and shall be located at the entrance area, except for petrol filling kiosks/ service stations. For monument signs located at petrol filling kiosks/ service stations, the signs shall be allowed a maximum area of 2.0 sqm and shall be mounted on the ground. Petrol identification signs (pole signs): shall be illuminated, shall have a maximum area of 2.0 sqm and shall have a minimum height of 3.0 m up to a maximum of 5.0 m from the finished sidewalk level. Projecting signs: shall be illuminated, shall have a maximum area of 1.0 sqm with a minimum height from bottom of sign to finished sidewalk level of 2.2 m and a maximum height from top of wall sign to finished sidewalk level of 4.0 m, and be attached perpendicular to the building façade near the entrance. The projecting sign shall not obstruct the sidewalk. Wall signs: shall be allowed a minimum height from bottom of the sign to finished sidewalk level of 2.2 m and a maximum height from top of wall sign to finished sidewalk level of 4.0 m with the exception of parking structures, transit stations/ terminals and petrol filling kiosks/ service stations. For parking structures and transit stations/ terminals, wall signs shall be allowed a minimum height of 2.4 m measured from the bottom of sign to crown of RROW carriageway. For petrol filling kiosks/ service stations, the wall sign shall be at the edge of the roof/ parapet. For signage illumination, maximum areas and similar locations, refer to the allowed use and/or specific regulations by zone as shown hereafter. E-70 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.6.1.9 Official Signs Exempted The following official signs are exempt from the restrictions of this Ordinance that may also apply to signs: E.6.1.10 Official highway route number signs, street name signs, directional, or other official government signs; Directional, information or public service signs, such as those advertising availability of restrooms, telephone or similar public conveniences; Official traffic signs, signals, devices and the like; and Official signs for memorial or historical places. Possible Exemption for Non-Mobile Billboards/ Electronic Displays Only Above the Sidewalk Portion of the RROW Satisfaction of the following conditions, whereby the permitted non-mobile billboard/ electronic display is made to effectively contribute to positive urban design/ redevelopment, may allow the placement or erection of non-mobile billboards/ electronic displays but only above the sidewalk portion of the RROW: E.6.1.11 If the NMB/ electronic display and its cantilevered support structure is used to effectively hold in place and disguise/ conceal overhead electrical, telephone, cable TV and similar utility lines that hover above the sidewalk and that may pose possible danger to pedestrians; provided that such utility lines are also effectively concealed from the view of persons within a property/ building or structure without unduly compromising considerations of natural light and ventilation. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E.6.1.12 Sustainability of NMBs/ Electronic Displays All of the construction and finishing materials, related to the erection, operation and maintenance of NMBs/ BEDUs, particularly including the mode of disposal, reuse, recycling, etc. of such materials such as used paints, stickers, tarpaulin, plastics, metals, glass, expended luminaires, and the like, shall conform with the pertinent environmental laws and regulations, including those related to professional practices in the fields of environmental planning, environmental investigation and environmental design (in which architecture and urban design are included), as well as accepted and/or prescribed international sustainability practices such as international agreements and protocols in which the Republic of the Philippines is a signatory. Of particular importance are the determination of embodied energy levels in such materials, which is part of the carbon (footprint) reduction effort worldwide. The embodied energy used in the sourcing, manufacture, transportation/ handling/ delivery, installation, use and operation/ maintenance of such materials must require the least consumption and production of carbon and must thereby promote health and general wellbeing (including nuisance avoidance) of all affected by the introduction of the pertinent non-mobile billboard/ BEDU. If the NMB/ electronic display and its cantilevered support structure is also used to effectively provide a shelter from the elements for the pedestrians passing underneath; as such, the non-mobile billboard serves as a component of a virtual covered sidewalk system. If the NMB/ electronic display to cover the utility lines is officially permitted by the DPWH with the MMDA and/or the DILG. If the allowed NMB/ electronic display does not exceed 1.2 meters in height and provides a clear vertical distance of at least 4.0 meters for pedestrians passing underneath. State Regulation of NMB/ Electronic Display Content Since the content of NMBs/ electronic displays have an undeniable effect on its viewers, particularly the young, the State must perforce regulate such NMB/ electronic billboard content such that public morals are preserved in general and such that undue attacks on beliefs, customs and traditions, lawful practices and on the exploited and/or marginalized sectors of society are likewise prevented, with the proper presentation of the content and of the display’s context without directly venturing into censorship. Only limited self-regulation among industry players may be allowed, such that the LGU shall continue to exercise overall supervision on all matters pertaining to regulation of NMBs/ electronic displays within its jurisdiction. In such a manner, liabilities and violations can be clearly established by the LGU and subsequently addressed by the proper authorities. E-71 E-72 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Current Interpretations of Rule XII of P.D. No. 1096 (1977 NBCP) This Annex graphically illustrates interpretations of the prescribed compliances for buildings under Rule XII of the 2004 Revised IRR of P.D. No. 1096 (the 1977 National Building Code of the Philippines/ NBCP) and is intended for ready reference by physical planners, architects, designers, and the competent reviewing authorities authorized to review/ process and approve building plans under P.D. No. 1096. Annex F Current Interpretations of Rule XII of P.D. No. 1096 (1977 NBCP) F-1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-9 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-11 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-13 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-15 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-17 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-19 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures F-21 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Annex G F-22 Generic Documents Guide for a Large National Government Office Building Project Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Generic DOCUMENTS GUIDE for a A-16 (Approx. 1.7 hectares Total Lot Area/ TLA, approx. 60,000 sqm Total Gross Floor Area/ TGFA, Large Footprint, Medium-rise with Deck Roof Level and No Basement Level) A-18 LARGE NATIONAL GOVERNMENT OFFICE Building Project Generic Plan and Design Drawing Schedule at Approximately 275 A0 (i.e. about 30” x 40”) Size Sheets Very Important Note: In the case of repair, renovation, rehabilitation, retrofit, expansion, heritage conservation, fit-out, and similar works/ projects for buildings/ structures, the AS-BUILT PLANS AND DESIGNS of such buildings/ structures, together with the respective SCOPE OF WORKS BRIEF i.e. an image map showing the plans, sections, elevations, etc. with call-outs of the intended construction works, MUST be provided by the Designer and/or Project Proponent before the rest of the Plans/ Designs/ Documents listed hereafter. A. Design Discipline 1. ARCHITECTURAL (A) Sheets Note: By law (R.A. No. 9266), only registered and licensed architects/ RLAs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Architectural Documents B. Sheet Code (and Number) 1. Primary Drawing/s A-1 PERSPECTIVES A-2 SITE DEVELOPMENT PLAN A-19 A-20 A-21 A-22 A0 Sheet Content 2. Secondary Drawing/s and/or Primary Information VICINITY MAP; LOCATION PLAN 3. Secondary/ Other Information TABLE OF CONTENTS A-23 A-24 A-25 A-26 A-27 A-28 A-29 A-3 A-4 A-5 A-6 A-7 A-8 A-9 A-10 A-11 A-12 A-13 A-14 A-15 G-1 C. A-17 LOWER GROUND FLOOR PLAN UPPER GROUND FLOOR PLAN SECOND FLOOR PLAN THIRD FLOOR PLAN FOURTH FLOOR PLAN FIFTH FLOOR PLAN SIXTH FLOOR PLAN SEVENTH FLOOR PLAN ROOF DECK PLAN FRONT ELEVATION LEFT-SIDE ELEVATION REAR ELEVATION RIGHT-SIDE A-30 A-31 A-32 A-33 A-34 A-35 A-36 A-37 ELEVATION LONGITUDINAL SECTION CROSS SECTION BETWEEN GRIDS 2&3 CROSS SECTION BETWEEN GRIDS 6&7 CROSS SECTION BETWEEN GRIDS 8&9 PARTIAL SECTION BETWEEN GRIDS 2&3 CURTAIN WALL (FRONT) PARTIAL SECTION BETWEEN GRIDS 3&4 REAR WALL PARTIAL SECTION BETWEEN GRIDS 6&7 CURTAIN WALL (FRONT) PARTIAL SECTION BETWEEN GRIDS 8&9 (FRONT) PARTIAL PLAN: SHOWING CONC. LEDGES PARTIAL PLAN: CANOPY @7TH FLOOR LEVEL PARTIAL PLAN: CONCRETE CANOPY @7TH FLOOR LEVEL CANOPY @ SEVENTH FLOOR DETAILED SECTION CROWN & PORTHOLE DETAILS TOWER DETAILS REFLECTED CEILING PLAN LOWER GROUND REFLECTED CEILING PLAN UPPER GROUND REFLECTED CEILING PLAN SECOND FLOOR REFLECTED CEILING PLAN THIRD FLOOR REFLECTED CEILING PLAN FOURTH FLOOR REFLECTED CEILING PLAN FIFTH FLOOR REFLECTED CEILING PLAN SIXTH FLOOR REFLECTED CEILING PLAN SEVENTH FLOOR LIGHTING PLAN-DECK AND MACH. ROOM SCHEDULE OF DOORS DETAIL SECTION CONCRETE LEDGE (REAR) DETAIL SECTION: CONCRETE LEDGE (LEFT & RIGHT SIDE) SPOT DETAIL PARAPET DETAILS ISOMETRIC DRAWING LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE LEGEND LIGHTING FIXTURE DOOR FIN. & ACCESSORIES CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. CALLOUTS CEILING FIN. G-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures A-38 A-39 A-40 A-41 A-42 A-43 A-44 A-45 A-46 A-47 A-48 A-48 AI-49 AI-50 AI-51 AI-52 AI-53 2. ARCHITECTURAL G-3 AI-1 SCHEDULE OF WINDOWS, TAGS AND COUNT FIXED/SLIDING WINDOW DETAIL FIXED/SLIDING WINDOW DETAILS CURTAIN WALL DETAILS DOOR TAGS AND COUNT FLOOR PATTERNROOF DECK PLAN MAINSTAIRS: LGUG PLAN MAINSTAIRS: UG-7TH FLOOR PLAN MAINSTAIRS: 7TH FLOOR-DECK LEVEL MAIN STAIRS SECTION PARTIAL SECTION: 5THROOD DECK LEVEL PARTIAL SECTION: TYP. FLOORS FIRE EXIT DETAILS ENTRANCE STAIR DETAIL DISABLED RAMP DETAILS CANOPY DETAILS ENTRANCE STAIR DETAILS KITCHEN EQUIPMENT DETAILS SCHEDULE OF EXTERIOR PAINTING WORKS SCHEDULE OF EXTERIOR ARCHITECTURAL METALWORK SCHEDULE OF MURALS AND PUBLIC ART/ EXTERIOR SCULPTURE SCHEDULE OF OUTDOOR TILEWORK, TAGS AND COUNT PLANS, DRAWINGS, DETAILS AND SCHEDULE OF ARCHITECTURAL COMPLIANCES WITH THE ACCESSIBILITY LAW WINDOW FIN. & ACCESSORIES PARTITION PLAN- LEGEND Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures INTERIORS (AI)* Sheets Note: By law (R.A. No. 9266), only registered and licensed architects/ RLAs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Architectural Interior (AI) Documents CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS DOOR FIN. & ACCESSORIES LEGEND FLOOR FIN. ISOMETRIC VIEW LOWER GROUND WALL FIN. AI-2 PARTITION PLANUPPER GROUND LEGEND WALL FIN. AI-3 PARTITION PLANSECOND FLOOR PARTITION PLAN THIRD FLOOR PARTITION PLAN FOURTH FLOOR PARTITION PLAN FIFTH FLOOR PARTITION PLAN SIXTH FLOOR PARTITION PLAN SEVENTH FLOOR FLOOR PATTERNLOWER GROUND FLOOR PATTERNUPPER GROUND FLOOR PATTERNSECOND FLOOR FLOOR PATTERNTHIRD FLOOR FLOOR PATTERNFOURTH FLOOR FLOOR PATTERNFIFTH FLOOR FLOOR PATTERNSIXTH FLOOR FLOOR PATTERNSEVENTH FLOOR SCHEDULE OF FINISHES FOR ARCHITECTURAL INTERIOR WORKS SCHEDULE OF FINISHES FOR ARCHITECTURAL INTERIOR WORKS SCHEDULE OF FINISHES FOR ARCHITECTURAL INTERIOR WORKS SCHEDULE OF FINISH FOR ARCHITECTURAL INTERIOR WORKS TYPICAL HALLWAY DETAILS SIXTH FLOOR HALLWAY DETAIL PARTIAL PLAN: MAIN LEGEND WALL FIN. LEGEND WALL FIN. LEGEND WALL FIN. LEGEND WALL FIN. LEGEND WALL FIN. LEGEND WALL FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. LEGEND FLOOR FIN. OUTLINE SPECIFICATIONS AI-4 AI-5 AI-6 AI-7 DETAIL SECTION SPOT DETAIL NOSING DETAIL AI-8 AI-9 SPOT DETAILS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS AI-10 AI-11 AI-12 NOTES NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES AI-13 AI-14 AI-15 AI-16 AI-17 AI-18 AI-19 AI-20 AI-21 AI-22 CALLOUTS OTHER FIN. NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES CALLOUTS SPECIFICATIONS CALLOUTS G-4 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures AI-23 AI-24 AI-25 AI-26 AI-27 A-28 AI-29 AI-30 AI-31 A1-32 AI-33 G-5 LOBBY DETAILED ELEVATION DETAILED ELEVATION: MAIN LOBBY PLAN: COLUMN CLADDING SECTION: COLUMN CLADDING SECTION: ACCENT WALL DETAIL SECTION: RAILING DETAIL ELEVATION: RAILING PARTIAL ELEVATION: RAILING @ MAIN LOBBY WALL DETAIL SECTIONS CEILING DETAILS TOILET DETAILS -LOWER GROUND FLOOR -UPPER GROUND FLOOR -SECOND FLOOR TOILET DETAILS -THIRD FLOOR -FOURTH FLOOR TOILET DETAILS -FIFTH FLOOR -SIXTH FLOOR PANTRY DETAILS -UPPER GROUND FLOOR PANTRY DETAILS -SECOND FLOOR PANTRY DETAILS -THIRD FLOOR & FOURTH FLOOR PANTRY DETAILS -FIFTH FLOOR AI-34 PANTRY DETAILS -SIXTH FLOOR AI-35 PANTRY DETAILS -SEVENTH FLOOR AI-36 PLAN: GM BACKWALL & BACK CABINET ELEVATIONS, SECTIONS & DETAILS PARTIAL PLAN: GM/CONF. RM, DIVIDER CAB. ELEVATION, SECTIONS FINISHES & SPECIFICATIONS SPOT DETAIL: COLUMN CLADDING CALLOUTS FINISHES & OUTLINE SPECIFICATIONS SPOT DETAIL: HANDRAIL SECTION: ALUMINUM SHEET MOULDING DETAILS SPOT DETAILS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures AI-37 AI-38 AI-39 AI-40 AI-41 AI-42 AI-43 AI-44 AI-45 AI-46 AI-47 AI-48 AI-49 AI-50 AI-51 AI-52 AI-53 AI-54 & DETAILS KITCHEN EQUIPMENT LAYOUT LOWER GROUND FURNITURE LAYOUT, TAGS & COUNT UPPER GROUND FLOOR FURNITURE LAYOUT, TAGS & COUNT SECOND FLOOR FURNITURE LAYOUT, TAGS & COUNT THIRD FLOOR FURNITURE LAYOUT, TAGS & COUNT FOURTH FLOOR FURNITURE LAYOUT, TAGS & COUNT FIFTH FLOOR FURNITURE LAYOUT, TAGS & COUNT SIXTH FLOOR FURNITURE LAYOUT, TAGS & COUNT SEVENTH FLOOR FURNITURE LAYOUT, TAGS & COUNT -SIGNAGE AND GRAPHICS DESIGN DETAIL -SIGNAGE AND GRAPHICS DESIGN PLANS, TAG AND COUNT SCHEDULE OF HARDWARE AND COUNT SCHEDULE OF FIXTURES, TAG AND COUNT SCHEDULE OF FURNISHINGS, TAG AND COUNT SCHEDULE OF STAIRS, ESCALATORS AND ELEVATORS SCHEDULE OF SMALL OFFICE EQUIPMENT, TAG AND COUNT SCHEDULE OF GRAPHICS, SIGNAGES AND WAYFINDING DEVICES SCHEDULE OF FURNITURE AND CALLOUTS FINISHES & OUTLINE SPECIFICATIONS, KITCHEN EQUIPMENT LIST OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES G-6 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures AI-55 AI-56 AI-57 AI-58 AI-59 AI-60 AI-61 AI-62 AI-63 AI-64 AI-65 AI-66 3. INTERIOR DESIGN (ID)** Sheets Note: By law (R.A. No. 8534), only registered and licensed interior designers/ RLIDs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Interior Design (ID) Documents G-7 ID - 1 ID - 2 ID - 3 MOVABLE ITEMS SCHEDULE OF FURNITURE AND MOVABLE ITEMS SCHEDULE OF FURNITURE AND MOVABLE ITEMS SCHEDULE OF FURNITURE AND MOVABLE ITEMS SCHEDULE OF MILLWORK ITEMS SCHEDULE OF INTERIOR PAINTING WORKS SCHEDULE OF INTERIOR ARCHITECTURAL METALWORK SCHEDULE OF INDOOR TILEWORK, TAGS AND COUNT SCHEDULE OF TOILET FIXTURES AND ACCESSORIES SCHEDULE OF ARCHITECTURAL LIGHTING FIXTURES (INCLUDING MONUMENTAL LIGHTING) AND ACCESSOTIES SCHEDULE OF INDOOR PLANTS AND HOLDERS PARKING AND TRAFFIC PLAN PLANS, DRAWINGS, DETAILS AND SCHEDULE OF ARCHITECTURAL INTERIOR COMPLIANCES WITH THE ACCESSIBILITY LAW Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures DESIGN & DETAILS - CUSTOM FURNITURE DESIGN & DETAILS - CUSTOM FURNITURE DESIGN & DETAILS - CUSTOM FURNITURE DESIGN & DETAILS SCHEDULE OF FURNITURE AND MOVABLE ITEMS SCHEDULE OF DRAPES, CURTAINS, CUSHIONS, WINDOW ACCESSORIES, ETC. AND ATTENDANT HARDWARE ITEMS SCHEDULE OF DÉCOR ITEMS, PAINTINGS AND INTERIOR SCULPTURE SPECIFICATIONS OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS LA - 1 ID - 4 OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES ID - 7 OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS NOTES ID - 8 OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS NOTES OUTLINE SPECIFICATIONS ID - 5 ID - 6 -SYSTEMS FURNITURE DESIGN & DETAILS -SYSTEMS FURNITURE DESIGN & DETAILS OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS NOTES -SYSTEMS FURNITURE OUTLINE NOTES NOTES NOTES OUTLINE SPECIFICATIONS NOTES -PLANTING PLAN & GENERAL NOTES CALLOUTS, OUTLINE SPECIFICATIONS GENERAL NOTES LA - 2 -PLANT LIST & DETAILS OUTLINE SPECIFICATIONS AND CALLOUTS CONSOLIDATED PLANT LIST LA - 3 SOFTSCAPING PLAN, DESIGN AND DETAILS HARDSCAPING PLAN, DESIGN AND DETAILS CALLOUTS, OUTLINE SPECIFICATIONS OUTLINE SPECIFICATIONS AND CALLOUTS OUTLINE SPECIFICATIONS AND CALLOUTS LA - 4 5. SITE DEVELOPMENT PLAN (SDP) Sheets Note: By law (R.A. No. 9266), only registered and licensed architects/ RLAs shall prepare, sign and seal all professional outputs for buildings and their grounds i.e. those that are classified as Site Development Plan (SDP) Documents NOTES NOTES ID - 9 NOTES NOTES OUTLINE SPECIFICATIONS NOTES 4. LANDSCAPE*** ARCHITECTURAL (LA) Sheets Note: By law (R.A. No. 9053), only registered and licensed landscape architects/ RLLAs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Landscape Architectural (LA) Documents NOTES LA - 5 LANDSCAPING LIGHTING AND SIGNAGE PLAN, DESIGN AND DETAILS SDP-1 SITE DEVELOMENT PLAN MAIN FENCE DETAILS ISOMETRIC DETAILS PLAN: GUARD’S OUTPOST GUARD’S OUTPOST -WINDOW SCHEDULE SDP-2 SDP-3 G-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures SDP-4 6. CIVIL WORKS (CW) Sheets Note: By law (R.A. No. 544, as amended by R.A. No. 1582), only registered and licensed civil engineers/ RLCEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Civil Works (CW) Documents SDP-5 GATE PLAN AND DETAILS SDP-6 PEDESTRIAN GATE PLAN AND DETAILS CW – 1 GRADING PLAN AND DETAILS SITE DRAINAGE PLAN, DESIGN AND DETAILS CW – 2 G-9 -PARAPET DETAIL SECTION SECURITY BOOTH -WINDOW SCHEDULE -PARAPET DETAIL CALLOUTS FINISHES & OUTLINE SPECIFICATIONS CALLOUTS FINISHES & OUTLINE SPECIFICATIONS ISOMETRIC DETAILS Note: By law (R.A. No. 544, as amended by R.A. No. 1582), only registered and licensed civil engineers/ RLCEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Structural (S) Engineering Design Documents S-2 FOUNDATION/ COLUMN KEY PLAN S-3 FOUNDATION DETAILS S-4 S-5 COLUMN SCHEDULE COLUMN SCHEDULE S-6 SHEAR WALL SCHEDULE SHEAR WALL SCHEDULE LOWER GROUND FLOOR FRAMING PLAN UPPER GROUND FLOOR FRAMING PLAN SECOND FLOOR FRAMING PLAN THIRD FLOOR FRAMING PLAN FOURTH-SIXTH FLOOR FRAMING PLAN SEVENTH FLOOR FRAMING PLAN LOWER ROOF DECK FRAMING PLAN UPPER ROOF FRAMING PLAN AND DETAILS S-7 S-8 S-9 S-10 S-11 S-12 S-13 CW – 3 CW – 4 7. STRUCTURAL (S) Engineering Design Sheets -ROOF DECK PLAN -FRONT ELEVATION -LEFT ELEVATION -REAR ELEVATION -RIGHT ELEVATION -CROSS SECTION -LONGITUDINAL SECTION PLAN: SECURITY BOOTH -FRONT ELEVATION -LEFT ELEVATION -REAR ELEVATION -RIGHT ELEVATION -CROSS SECTION -LONGITUDINAL SECTION FLAGPOLE PALN AND DETAILS Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures S-1 S-14 PERIMETER WALL AND FENCE DESIGN AND DETAILS DRIVEWAY, ROAD AND SIDEWALK PLAN, DESIGN AND DDETAILS CONSTRUCTION NOTES S-15 S-16 GENERAL NOTES, NOTES ON CONCRETE MIXES AND PLACING, NOTES ON REINFORCING STEEL BARS, NOTES ON FOUNDATION, NOTES ON CONCRETE WALLS, NOTES ON MASONRY WALLS, NOTES ON BEAMS AND GIRDERS, NOTES ON CONCRETE S-19 SCHEDULE OF MOMENT RESISTING GIRDERS SCHEDULE OF GIRDERS SCHEDULE OF GIRDERS SCHEDULE OF BEAMS S-20 S-21 SCHEDULE OF BEAMS SCEDULES OF SLABS S-17 S-18 SLABS, NOTES ON STRUCTURAL STEEL, NOTES ON COLUMNS & DESIGN CRITERIA CALLOUTS & OUTLINE SPECIFICATIONS PILE CAP SCHEDULE CALLOUTS & OUTLINE SPECIFICATIONS SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS NOTES NOTES CALLOUTS & OUTLINE SPECIFICATIONS, TYPICAL CORBEL DETAIL TYPICAL BAR DETAILS FOR BEAMS TYPICAL SLAB DETAILS, DROP SLAB, CORNER SLAB & TYPICAL DETAIL OF SLAB OPENINGS G-10 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures S-22 TRUSS DETAILS S-23 MAIN STAIR DETAILS S-24 LEFT / RIGHT WING FIRE EXIT DETAILS S-25 S-26 S-27 S-28 S-29 8. ELECTRICAL (E) Engineering Design Sheets Note: By law (R.A. No. 7920), only registered and licensed professional electrical engineers/ PEEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Electrical (E) Engineering Design Documents E-1 E-2 E-3 E-4 E-5 E-6 E-7 E-8 E-9 E-10 E-11 G-11 MACH. RM DETAILS / BEAM SCHEDULE OF MACHINE ROOM TOWER / MAST DETAILS PARAPET WALL SUPPORT AND WALL DETAILS OVERHEAD / GROUND WATER TANK DETAILS UPPER ROOF FRAMING PLAN AND DETAILS LOAD SCHEDULE Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures E-12 E-26 FIFTH FLOOR LIGHTING LAYOUT SIXTH FLOOR LIGHTING LAYOUT SEVENTH FLOOR LIGHTING LAYOUT ROOF DECK LIGHTING LAYOUT GROUNDS POWER LAYOUT LOWER POWER LIGHTING LAYOUT UPPER POWER LIGHTING LAYOUT SECOND POWER LIGHTING LAYOUT THIRD POWER LIGHTING LAYOUT FOURTH POWER LIGHTING LAYOUT FIFTH POWER LIGHTING LAYOUT SIXTH POWER LIGHTING LAYOUT SEVENTH POWER LIGHTING LAYOUT ROOF DECK POWER LAYOUT ROOF DECK POWER LAYOUT DETAILS E-27 DETAILS E-28 DETAILS 9. MECHANICAL (M) Engineering Design Sheets M-1 Note: By law (R.A. No. 8495), only registered and licensed professional mechanical engineers/ PMEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Mechanical (M) Engineering Design Documents M-2 -DRAWING INDEX, LEGENDS AND ABBREVIATIONS & GENERAL NOTES -SCHEDULE OF EQUIPMENT HVAC PIPE SYMBOLS, HVAC DUCT SYMBOLS& SITE DEVELOPMENT PLAN -LOWER GROUND A/C AND VENTILATION LAYOUT -UPPER GROUND FLOOR A/C AND VENTILATION LAYOUT CALLOUTS & OUTLINE SPECIFATIONS CALLOUTS & OUTLINE SPECIFICATIONS CONNECTION DETAILS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS, BEAM DETAILS & SPOT DETAILS SCHEDULE OF BEAMS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS E-13 E-14 E-15 E-16 E-17 E-18 E-19 E-20 CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS E-21 GENERAL NOTES E-24 E-22 E-23 E-25 LOAD SCHEDULE LOAD SCHEDULE AND EMERGENCY LOAD SCHEDULE EMERGENCY LOAD SCHEDULE LIGHTING FIXTURE SCHEDULE PANELBOARD SCHEDULE GROUNDS LIGHTING LAYOUT LOWER GROUND LIGHTING LAYOUT UPPER GROUND LIGHTING LAYOUT SECOND FLOOR LIGHTING LAYOUT THIRD FLOOR LIGHTING LAYOUT FOURTH FLOOR LIGHTING LAYOUT E-25 M-3 M-4 CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, NOTES NOTES NOTES NOTES G-12 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures M-5 -SECOND FLOOR A/C AND VENTILATION LAYOUT M-6 -THIRD FLOOR A/C AND VENTILATION LAYOUT M-7 -FOURTH FLOOR A/C AND VENTILATION LAYOUT M-8 -FIFTH FLOOR A/C AND VENTILATION LAYOUT M-9 -SIXTH FLOOR A/C AND VENTILATION LAYOUT M - 10 -SEVENTH FLOOR A/C AND VENTILATION LAYOUT M - 11 M - 12 M - 13 G-13 -ROOFDECK A/C AND VENTILATION LAYOUT -GENSET DETAILED PLAN & SECTION, ACCU BALCONY DETAILED PLAN AND SECTION * MISCELLANEOUS DETAILS -SCHEMATIC DIAGRAM M - 14 -MISCELLANEOUS DETAILS 1 M - 15 -MISCELLANEOUS DETAILS 2 UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY LEGEND, CALLOUTS & OUTLINE SPECIFICATIONS, UNIT DESIGNATION AND QUANTITY CALLOUTS & OUTLINE SPECIFICATIONS Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures NOTES 10. FIRE PROTECTION (FP)**** Design Sheets FP - 1 Note: By law (R.A. No. 8495), only registered and licensed professional mechanical engineers/ PMEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Mechanical (M) Engineering Design Documents FP - 2 NOTES NOTES NOTES NOTES FP - 3 FP - 4 FP - 5 FP - 6 NOTES FP - 7 FP - 8 FP - 9 CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS DETAILS CALLOUTS & OUTLINE SPECIFICATIONS, ELEVATIONS & DETAILS NOTES STAIRWELL PRESSURIZATION FAN SEQUENCE OF OPERATION SMOKE EVACUATION FAN SEQUENCE OF OPERATION NOTES DUCT SCHEDULE NOTES, DIMENSIONS & PIPE SIZE FP - 10 FP - 11 FP - 12 FP - 13 -FIRE PROTECTION DRAWING INDEX, FIRE PROTECTION LEGENDS, ABBREVIATIONS & SYMBOLS, FIRE PROTECTION GENERAL NOTES, SITE DEV’T PLAN, SCHEDULE OF PUMPS,SCHEDULE OF CONTROLLERS, SCHEDULE OF PIPE SLEEVES & PIPE SIZE CONVERSION TABLE -LOWER GROUND FLOOR FIRE PROTECTION LAYOUT -UPPER GROUND FLOOR FIRE PROTECTION LAYOUT -SECOND FLOOR FIRE PROTECTION LAYOUT -THIRD FLOOR FIRE PROTECTION LAYOUT -FOURTH FIRE PROTECTION LAYOUT -FIFTH FIRE PROTECTION LAYOUT -SIXTH FIRE PROTECTION LAYOUT -SEVENTH FIRE PROTECTION LAYOUT -ROOF DECK FIRE PROTECTION LAYOUT -FIRE PUMP ROOM AND EQUIPMENT LAYOUT --DETAILED SECTION DETAIL OF AIR VENT -SCHEMATIC FLOW DIAGRAM OF STANDPIPE SYSTEM -MISCELLANEOUS DETAILS 1 CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS CALL OUTS & OUTLINE SPECIFICATIONS BLOW UP DETAIL DETAIL OF LADDER RUNGS DETAILED SECTION DETAIL OF AIR VENT LEGENDS AND SYMBOLS ISOMETRY CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS LEGEND NOTES NOTES NOTES MATERIAL: Carbon Steel BOLT DIAMETER G-14 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures FP - 14 -MISCELLANEOUS DETAILS 2 FP - 15 -MISCELLANEOUS DETAILS 3 11. ELECTRONIC (EC)***** Engineering Design Sheets EC – 1 Note: By law (R.A. No. 9292), only registered and licensed professional electronic engineers/ PECEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Electronic (EC) Engineering Design Documents EC – 2 -DRAWING INDEX, LEGENDS AND ABBREVIATIONS, GENERAL NOTES, PIPE SYSMBOLS, SITE DEVELOPMENT PLAN - GROUNDS AUXILIARY SYSTEM LAYOUT EC – 3 EC – 4 EC – 5 EC – 6 EC – 7 EC – 8 EC – 9 EC – 10 -SCHEMATIC DIAGRAM EC – 11 -LOWER AND UPPER GROUND FLOOR BMS -SECOND AND THIRD FLOOR BMS -FOURTH AND FIFTH FLOOR BMS -SIXTH AND SEVENTH FLOOR BMS -ROOF DECK BMS DETAILS EC – 12 EC – 13 EC – 14 EC – 15 EC – 16 G-15 -LOWER AND UPPER GROUND FLOOR AUXILIARY SYSTEM LAYOUT -SECOND AND THIRD FLOOR AUXILIARY SYSTEM LAYOUT -FOURTH AND FIFTH FLOOR AUXILIARY SYSTEM LAYOUT -SIXTH AND SEVENTH FLOOR AUXILIARY SYSTEM LAYOUT -ROOF DECK AUXILIARY SYSTEM LAYOUT -BMS POINTS LIST -SCHEMATIC DIAGRAM MATERIAL: Carbon Steel CALLOUTS & OUTLINE SPECIFICATIONS, ISOMETRIC VIEW CALLOUTS & OUTLINE SPECIFICATIONS PLANS Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures NOTES NOTES TABLES CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS 12. PLUMBING (P) Design Sheets Note: By law (R.A. No. 1378), only registered and licensed master plumbers/ MPs shall prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Plumbing (P) Design Documents Note: Depending on the Lower Court’s interpretation (for final adjudication by the Supreme Court), registered and licensed sanitary engineers/ SEs may apparently prepare, sign and seal all professional outputs for buildings i.e. those that are classified as Plumbing (P) Design Documents. The concerned entities must make the necessary representations with the Client. EC – 17 DETAILS EC – 18 DETAILS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS P-2 UPPER GROUND FLOOR PLUMBING LAYOUT CALLOUTS & OUTLINE SPECIFICATIONS NOTES P-3 - SECOND FLOOR PLUMBING LAYOUT THIRD FLOOR PLUMBING LAYOUT FOURTH FLOOR PLUMBING LAYOUT CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS, TYPICAL CONNECTION OF WS TO DS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS NOTES CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS NOTES P-6 P-7 P-8 P-9 P-10 P-11 CALLOUTS & OUTLINE NOTES NOTES LOWER GROUND PLUMBING LAYOUT P-5 NOTES STAIRWELL PRESSURIZATION FAN SEQUENCE OF OPERATION NOTES P-1 P-4 LEGEND SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS P-12 FIFTH FLOOR PLUMBING LAYOUT SIXTH FLOOR PLUMBING LAYOUT SEVENTH FLOOR PLUMBING LAYOUT ROOF DECK PLUMBING LAYOUT RISER DIAGRAM OF COLD WATER RISER DIAGRAM OF DOWNSPOUT ALONG GRID LINE-B RISER DIAGRAM OF SANITARY DRAINAGE NOTES NOTES NOTES NOTES CALLOUTS & OUTLINE SPECIFICATIONS G-16 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures P-13 P-14 P-15 DETAIL OF GROUND WATER TANK DETAIL OF ELEVATED WATER TANK -ROUGHING-IN OF TOILETS P-16 -ROUGHING-IN OF TOILETS P-17 -ROUGHING-IN OF TOILETS P-18 -ROUGHING-IN OF TOILETS P-19 -DETAIL OF PUMP INSTALLATION, PUMP DISCHARGE RISER PIPING DETAIL, SCHEDULE OF EQUIPMENT -MISCELLANEOUS DETAILS P-20 DETAIL OF WATERTIGHT MANHOLE, DETAIL OF AIR VENT, DETAIL OF LADDER RUNGS, DETAIL OF PIPE SLEEVE, DETAIL OF OVERFLOW PIPE/DRAIN BOX CALLOUTS & OUTLINE SPECIFICATIONS ISOMETRIC CALLOUTS, OUTLINE SPECIFICATIONS ISOMETRIC CALLOUTS, OUTLINE SPECIFICATIONS ISOMETRIC CALLOUTS, OUTLINE SPECIFICATIONS ISOMETRIC CALLOUTS, OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECIFICATIONS CALLOUTS & OUTLINE SPECICATIONS, DETAIL OF LADDER RUNG P-21 -MISCELLANEOUS DETAILS CALLOUTS, OUTLINE SPECIFICATIONS 13. SANITARY (SE) Engineering Design Sheets SE - 1 CALLOUTS Note: By law (R.A. No. 1364), only registered and licensed sanitary engineers/ SEs shall prepare, sign and seal all professional outputs for buildings i.e. those that are SE-2 SITE PLAN SHOWING OUTSIDE SANITARY UTILITIES, TABLE OF CONTENTS AND LEGEND/ SYMBOLS SEWAGE TREATMENT PLANT (STP) G-17 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures classified as Sanitary (S) Engineering Design Documents NOTES SE-3 SE-4 STP DETAILS MISCELLANEOUS DETAILS CALLOUTS, OUTLINE SPECIFICATIONS TABLE OF DIMENSIONS, NOTES Notes: *includes Fixtures, Furnishings and Equipment (Non-capital) i.e. FFE and Graphic Design, including all forms of Way-finding Systems (such as those for office and parking spaces); **includes Furniture and Movables Design (FMD) and Décor Items; and ***includes all hard and soft landscaping components. ****oftentimes included as part of the Mechanical (M) Design sheets; and *****includes Building Management System (BMS) and other automation features. TABLE OF RISER CLAMPS, TABLE OF CLEVIS HANGERS, TABLE OF TRAPEZE HANGERS, TABLE OF BRACKET DIMESIONS TABLE OF DIMENSIONS, NOTES, TABLE OF MINIMUM THRUST BLOCK BEARING AREAS IN SQUARES METRES FOR PIPE SIZES 75mm - to 600mm∅ G-18 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures SECTION 03410 – PRECAST CONCRETE WALLS ............................................................................................................. 92 Generic Table of Contents for the Technical Specifications for a DIVISION 04 - MASONRY ........................................................................................................................................... 96 (Approx. 1.7 hectares Total Lot Area/ TLA, approx. 60,000 sqm Total Gross Floor Area/ TGFA, Large Footprint, Medium-rise with Deck Roof Level and No Basement Level) SECTION 04220 – CONCRETE MASONRY UNIT WORK ................................................................................................ 101 LARGE NATIONAL GOVERNMENT OFFICE Building Project at Approximately 480 A4 Size Pages Very Important Note: In the case of repair, renovation, rehabilitation, retrofit, expansion, heritage conservation, fit-out, and similar works/ projects for buildings/ structures, the SCOPE OF WORKS BRIEF for such buildings/ structures i.e. a general description of the intended construction works, MUST be provided by the Designer and/or Project Proponent before the rest of the Plans/ Designs/ Documents listed hereafter. The provisions that DO NOT apply to the types of work listed above shall be deleted on an need/ applicability basis. INTRODUCTION........................................................................................................................................................... 1 DIVISION 01 - GENERAL REQUIREMENTS .................................................................................................................... 6 SECTION 01010 – SUMMARY OF WORKS ....................................................................................................................... 6 SECTION 01011 - CONTRACT DOCUMENTS .................................................................................................................... 6 SECTION 01040 - COORDINATION.................................................................................................................................. 7 SECTION 01060 - REGULATORY AND OTHER REQUIREMENTS ....................................................................................... 7 SECTION 01090 - REFERENCE STANDARDS .................................................................................................................... 8 SECTION 01300 - SUBMITTALS ..................................................................................................................................... 10 SECTION 04810 – UNIT MASONRY ASSEMBLES .......................................................................................................... 103 DIVISION 05 - METAL .............................................................................................................................................. 113 SECTION 05120 – STRUCTURAL STEEL........................................................................................................................ 113 SECTION 05500 – METAL FABRICATIONS ................................................................................................................... 119 SECTION 05510 – MISCELLANEOUS METALS .............................................................................................................. 126 SECTION 05520 – HANDRAILS AND RAILINGS (STAINLESS STEEL) .............................................................................. 127 SECTION 05540 – LIGHT STEEL FRAMING SYSTEM ..................................................................................................... 134 DIVISION 06 – WOOD AND PLASTICS ...................................................................................................................... 135 SECTION 06200 – CARPENTRY AND JOINERY ............................................................................................................. 135 DIVISION 07- THERMAL AND MOISTURE PROTECTION ............................................................................................ 138 SECTION 07100 – WATERPROOFING.......................................................................................................................... 138 SECTION 07145 – MEMBRANE-TYPE ELASTOMERIC WATERPROOFING .................................................................... 142 SECTION 07260 – BATT INSULATION .......................................................................................................................... 145 SECTION 07431 – INSULATED METAL ROOF PANELS .................................................................................................. 146 SECTION 07610 – SHEET METAL ROOFING AND CLADDING ....................................................................................... 150 SECTION 07800 – ROOF ACCESSORIES ....................................................................................................................... 160 SECTION 07920 – CAULKING AND SEALING ............................................................................................................... 161 SECTION 01312 - PROJECT MEETINGS .......................................................................................................................... 14 DIVISION 08 - DOORS AND WINDOWS .................................................................................................................... 162 SECTION 01352 - PROJECT HEALTH AND SAFETY ......................................................................................................... 17 SECTION 08110 – STEEL DOORS AND FRAMES ........................................................................................................... 162 SECTION 01400 - QUALITY CONTROL ........................................................................................................................... 20 SECTION 08120 – ALUMINUM DOORS ....................................................................................................................... 166 SECTION 01500 - TEMPORARY FACILITIES (TEMFACIL) ................................................................................................ 22 SECTION 08130 – AUTOMATIC ENTRANCE SYSTEM ................................................................................................... 168 SECTION 01600 - MATERIAL AND EQUIPMENT ............................................................................................................ 24 SECTION 08210 – WOOD PANEL AND FLUSH DOORS ................................................................................................. 172 SECTION 01700 - CONTRACT CLOSEOUT ...................................................................................................................... 26 SECTION 08331 – OVERHEAD COILING DOORS .......................................................................................................... 176 SECTION 01710 - CLEANING ......................................................................................................................................... 28 SECTION 08520 – ALUMINUM WINDOWS ................................................................................................................. 180 DIVISION 02 - SITE CONSTRUCTION ........................................................................................................................... 29 SECTION 02250 – SOIL TREATMENT FOR SUBTERRANEAN TERMITE CONTROL ......................................................... 29 SECTION 08700 – HARDWARE ................................................................................................................................... 184 SECTION 08800 – GLASS AND GLAZING...................................................................................................................... 189 SECTION 02300 - EARTHWORK .................................................................................................................................... 31 DIVISION 09 – FINISHES........................................................................................................................................... 192 SECTION 02444 - PERIMETER FENCES AND GATES ....................................................................................................... 38 SECTION 09220 – PORTLAND CEMENT PLASTER ........................................................................................................ 192 DIVISION 03 - CONCRETE........................................................................................................................................... 41 SECTION 03100 - PORTLAND CEMENT CONCRETE PAVEMENT .................................................................................... 41 SECTION 03210 – REINFORCED CONCRETE .................................................................................................................. 63 SECTION 03300 – CAST-IN-PLACE CONCRETE .............................................................................................................. 74 G-19 SECTION 04050 – BASIC MASONRY MATERIALS ........................................................................................................... 96 SECTION 09290 – GYPSUM CEILING BOARDS ............................................................................................................. 195 SECTION 09295 – GYPSUM WALLBOARD (DRY WALL) ............................................................................................... 198 SECTION 09310 – CERAMIC TILE WORK ..................................................................................................................... 201 SECTION 09510 – ACOUSTICAL CEILING SYSTEM ....................................................................................................... 204 G-20 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures SECTION 09575 – SPANDREL CEILING ........................................................................................................................ 205 SECTION 16425 – LOW VOLTAGE SWITCHBOARD ...................................................................................................... 404 SECTION 09650 – HOMOGENOUS TILES..................................................................................................................... 206 SECTION 16460 – AUTOMATIC TRANSFER SWITCH .................................................................................................... 413 SECTION 09660 – PLAIN CEMENT FLOOR FINISH........................................................................................................ 209 SECTION 16470 – PANELBOARDS ............................................................................................................................... 420 SECTION 09666 – VINYL FLOOR TILES ......................................................................................................................... 211 SECTION 16500 – LUMINARIES AND ACCESSORIES .................................................................................................... 425 SECTION 09678 – CONCRETE FLOOR ADDITIVES/ SEALER .......................................................................................... 212 SECTION 16510 – RROW LIGHTING ............................................................................................................................ 431 SECTION 09750 – NATURAL STONE ............................................................................................................................ 213 SECTION 16550 – LIGHTNING PROTECTION SYSTEMS................................................................................................ 438 SECTION 09910 – PAINTING ....................................................................................................................................... 214 SECTION 16680 – GROUNDING SYSTEM .................................................................................................................... 441 SECTION 09965 – EPOXY PAINT.................................................................................................................................. 217 SECTION 16720 – FIRE DETECTION AND ALARM SYSTEM........................................................................................... 445 DIVISION 10 – SPECIALTIES ..................................................................................................................................... 218 SECTION 10280 – TOILET PARTITION SYSTEM ............................................................................................................ 218 SECTION 10800 – TOILET AND BATH ACCESSORIES .................................................................................................... 224 SECTION 10810 – PANTRY ACCESSORIES ................................................................................................................... 226 SECTION 10890 – WALK-THROUGH METAL DETECTOR.............................................................................................. 227 DIVISION 11 – EQUIPMENT ..................................................................................................................................... 235 SECTION 16740 – STRUCTURAL CABLING SYSTEM ..................................................................................................... 451 SECTION 16755 – PABX SYSTEM SPECIFICATION ........................................................................................................ 452 SECTION 16770 – BACKGROUND MUSIC AND PAGING SYSTEM (BGM/PA) ............................................................... 460 SECTION 16780 – CLOSED CIRCUIT TELEVISION SYSTEM (CCTV) ................................................................................ 464 SECTION 16900 – INSTRUMENTATION, ATC & BMS SYSTEM ..................................................................................... 467 SECTION 16950 – TESTING AND COMMISSIONING OF ELECTRICAL SERVICES ........................................................... 477 SECTION 11130 – LOADING DOCK EQUIPMENT ......................................................................................................... 235 SECTION 11260 – KITCHEN EQUIPMENT .................................................................................................................... 245 DIVISION 12 - FURNISHINGS.................................................................................................................................... 259 SECTION 12210 – BLINDS ........................................................................................................................................... 259 SECTION 12482 – ENTRANCE FLOOR MATS AND FRAMES ......................................................................................... 261 DIVISION 14 – CONVEYING SYSTEM ........................................................................................................................ 265 SECTION 14210 – ELEVATORS .................................................................................................................................... 265 DIVISION 15 - MECHANICAL .................................................................................................................................... 270 SECTION 15300 – FIRE PROTECTION WORKS ............................................................................................................. 270 SECTION 15320 – FIRE PUMPS ................................................................................................................................... 287 SECTION 15400 – PLUMBING ..................................................................................................................................... 292 SECTION 15780 – MECHANICAL (HVAC) ..................................................................................................................... 309 SECTION 15910 – DUCTWORK ACCESSORIES ............................................................................................................. 354 DIVISION 16 - ELECTRICAL ....................................................................................................................................... 357 SECTION 16000 – ELECTRICAL GENERAL PROVISIONS................................................................................................ 357 SECTION 16010 – ELECTRONICS & COMMUNICATION GENERAL PROVISIONS .......................................................... 372 SECTION 16110 – RACEWAYS AND BOXES ................................................................................................................. 375 SECTION 16122 – HIGH-VOLTAGE CABLE AND ACCESSORIES ..................................................................................... 382 SECTION 16200 – ENGINE GENERATOR SETS ............................................................................................................. 385 SECTION 16266 – PARALLELING SWITCHGEAR .......................................................................................................... 396 SECTION 16271 – POWER TRANSFORMER ................................................................................................................. 400 SECTION 16272 – DRY TYPE TRANSFORMER .............................................................................................................. 402 G-21 G-22 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures CHECKLIST FOR USE BY THE DPWH FOR ASSESSING DOCUMENTS SUBMITTED FOR DESIGN REVIEW (based on Sec. 302 of the 2004 Revised Implementing Rules and Regulations/ IRR of P.D. No. 1096, the 1977 National Building Code of the Philippines/ NBCP) 1. Duly accomplished prescribed request form/s for design review, with the following support documents: a. In case the design review applicant is the registered owner of the lot: i. Certified true copy of OCT/ TCT, on file with the Registry of Deeds, ii. Tax Declaration, and iii. Current Real Property Tax Receipt. b. In case the design review applicant is not the registered owner of the lot, in addition to the above; duly notarized copy of the Contract of Lease, or the Deed of Absolute Sale. Annex H 2. Five (5) sets of survey plans, design plans, specifications and other documents duly prepared, signed and sealed over the printed names of the duly registered and licensed professionals (RLPs), as follows: a. Geodetic Engineer (GE), in case of lot survey plans e.g. relocation, topographic, etc.; b. Architect (Ar), in case of architectural documents, including architectural interior (AI) documents and related physical planning documents for a Project site of less than five hectares (-5.0 has.) in total land area/ TLA (reference Sec. 20.5 of R.A. No. 9266, the Architecture Act of 2004); in case of interior design (ID) documents, including furniture design, an interior designer (IDr) must sign and seal; c. Civil Engineer (CE), in case of civil/ structural documents; d. Professional Electrical Engineer (PECE), in case of electrical documents; e. Professional Mechanical Engineer (PME), in case of mechanical documents; f. Sanitary Engineer (SnE), in case of sanitary documents; g. Master Plumber (MP), in case of plumbing documents; h. Professional Electronics Engineer (PEE), in case of electronics documents; i. Landscape Architect (LAr), in case of landscape architectural documents for building grounds (hard scape and soft scape); and j. Environmental Planner (EnP), in case of master development plans (MDPs) and related physical planning documents for a Project site of more than five hectares (5.0 has.) in total land area (TLA). 3. Five (5) sets of special studies duly prepared, signed and sealed over the printed names of the duly accredited professionals, as follows: a. Civil Engineer (CE), Environmental Planner (EnP) or Architect (Ar), with duly-qualified specialization in transportation planning, in case of the traffic impact analysis (TIA); and b. Civil Engineer (CE), Environmental Planner (EnP) or Architect (Ar), or an Environment Specialist, with duly-qualified specialization in environmental investigation, in case of the environmental impact analysis (EIA), required to secure the Environmental Compliance Certificate (ECC). 4. Architectural Documents a. Architectural Plans/ Drawings i. Vicinity Map/ Location Plan within a two kilometer (2.0 km) radius for commercial, industrial, and institutional complex and within a 0.5 km radius for residential buildings, at any convenient scale showing prominent landmarks or major thoroughfares for easy reference. ii. Site Development Plan (SDP) showing technical description, boundaries, orientation and position of proposed building/structure in relation to the lot, existing or proposed access road and driveways and existing public utilities/ services. Existing buildings within and adjoining Check List for Use by the DPWH for Assessing Documents Submitted for Design Review H-1 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures the lot shall be hatched and distances between the proposed and existing buildings shall be indicated. iii. Perspective drawn at a convenient scale and taken from a vantage point (bird’s eye view or eye level). iv. Architectural Program (including Space Program), with Space Plans cum Stacking Diagrams (only for multi-storey buildings) drawn to scale of not less than 1:100 meters (m). v. Floor Plans drawn to scale of not less than 1:100 meters (m) showing: gridlines, complete identification of rooms or functional spaces. vi. Elevations, at least four (4), same scale as floor plans showing: gridlines; natural ground to finish grade elevations; floor to floor heights; door and window marks, type of material and exterior finishes; adjoining existing structure/s, if any, shown in single hatched lines. vii. Sections, at least two (2), showing: gridlines; natural ground and finish levels; outline of cut and visible structural parts; doors and windows properly labeled reflecting the direction of opening; partitions; built-in cabinets, etc.; identification of rooms and functional spaces cut by section lines. viii. Reflected ceiling plan (RCP) showing: design, location, finishes and specifications of materials, lighting fixtures, diffusers, decorations, air conditioning exhaust and return grills, sprinkler nozzles, if any, at scale of at least 1:100 m. ix. Details, in the form of plans, elevations/sections: (a) Accessible ramps (b) Accessible stairs (c) Accessible lifts/ elevators (d) Accessible entrances, corridors and walkways (e) Accessible functional areas/ comfort rooms (f) Accessible switches, controls (g) Accessible drinking fountains (h) Accessible public telephone booths (i) Accessible audio visual and automatic alarm system (j) Accessible access symbols and directional signs (k) Reserved parking for persons with disabilities (PWDs) (l) Typical wall/ bay sections from ground to roof (m) Stairs, interior and exterior (n) Fire escapes/ exits (o) Built-in cabinets, counters and fixed furniture (p) All types of partitions (q) Provisions for PWDs, the elderly, gender and development (GAD), and the like; (r) Provisions to address concerns of climate change adaptation (CCA) and disaster risk reduction (DRR) x. Schedule of Doors and Windows showing their types, designations/ marks, dimensions, materials, hardware provisions, and number of sets. xi. Schedules of Finishes, showing in graphic form: surface finishes specified for floors, ceilings, walls and baseboard trims for all building spaces per floor level. xii. Details of other major Architectural Elements; and xiii. Technical Specifications (including operation/ use and maintenance) for all architectural works. b. Architectural Interiors (AI) i. General Space Plan/s or general layout/s of architectural interiors. ii. Architectural interior perspective/s. iii. Furniture/ furnishing/ equipment (FFE) layouts and process layout/s. iv. Access plan/s, parking plan/s and the like. H-2 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures v. Detailed design of major architectural interior elements i.e. floors, walls, ceiling, doors and related fenestrations, fixed counters and cabinetry, hardware, etc. vi. General plan, layout and design of the architectural interiors, including walls/ partitions, furnishing/ furniture/ equipment (FFE)/ appliances at a scale of at least 1:100 m, including ceiling cavity and roof cavity plans, as needed. vii. Interior wall elevations showing: finishes, switches, doors and convenience outlets, cross window sections with architectural interior perspective as viewed from the main entrance at scale of at least 1:100 m. viii. General floor/ ceiling/ wall patterns and general finishing details. ix. Technical Specifications (including operation/ use and maintenance), Schedules and related list/s of materials to be used for architectural interior finishing works. x. Cost Estimates. c. Plans and specific locations of all accessibility facilities of scale of at least 1:100 m., including the detailed design of all such accessibility facilities outside and around buildings/structures including parking areas, and their safety requirements all at scale of 1:50 m or any convenient scale. d. Fire Safety Documents i. Layout plan of each floor indicating the fire evacuation route to safe dispersal areas, standpipes with fire hose, fire extinguishers, first aid kits/ cabinets, fire alarm, fire operations room, emergency lights, signs, etc.s ii. Details of windows, fire exits with grilled windows and ladders. iii. Details of fire-resistive construction of enclosures for vertical openings. iv. Details of fire-resistive construction materials and interior decorative materials with fireresistive/ fire-retardant/ fire-spread ratings v. Other Related Documents f. Physical Planning documents (for Project Sites at less than 5.0 hectares in Total Land Area/ TLA) i. Vicinity Map/ Location Plan at a scale of at least 1:10,000 m. ii. Framework Plan at a scale of at least 1:2,500 m showing existing and proposed access systems, connectivities, identified hazards, orientations (wind, sun, odor, noise, etc.), view corridors, and like information. iii. Master Development Plan (MDP) at a scale of at least 1:1,250 m showing all setbacks and mandated legal easements (as applicable), proposed road rights-of-way (RROW, clearly delineating the carriageway and sidewalks), proposed building footprints at grade level, proposed outermost faces of buildings (OFB) at the second levels/ floors, floor to lot area (FLAR) used, gross floor area (GFA) to be generated, total GFA (TGFA) to be generated, building heights, and like information, to fully comply with Rules VII and VIII of the 2004 Revised IRR of P.D. No. 1096, the 1977 NBCP. iv. Proposed Land Use Distribution (breakdown). g. Other related documents 5. Interior Design i. Detailed space plan/ layout and design of all interior design elements, including furniture and furnishings at all fully enclosed areas/ spaces, at a scale of at least 1:50 m. ii. Interior design perspective/s showing details of special finishing and furnishing items. iii. Special floor/ ceiling/ wall patterns and finishing details. iv. Technical Specifications (including operation/ use and maintenance), Schedules and related list/s of materials to be used for interior design finishing works. v. Cost Estimates. 6. Civil/ Structural Documents a. Site Development Plan (SDP) H-3 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures Site Development Plan showing technical description, boundaries, orientation and position of proposed non-architectural horizontal structure such as: sewerage treatment plan (STP), silos, elevated tanks, towers, fences, etc. building/ structure in relation to the lot, existing or proposed access road and driveways and existing public utilities/ services. Existing buildings within and adjoining the lot shall be hatched and distances between the proposed and existing buildings shall be indicated. b. Structural Plans i. Foundation Plans and Details at scale of not less than 1:100 m. ii. Floor/ Roof Framing Plans and Details at scale of not less than 1:100 m. iii. Details and Schedules of structural and civil works elements including those for deep wells, water reservoir, pipe lines and sewer system. c. Structural Analysis and Design for all buildings/structures except for one storey and single detached building/structure with a total floor area of 20.0 square meters (sqm) or less. d. Boring and Load Tests Buildings or structures of three (3) storeys and higher, boring tests and, if necessary, load tests shall be required in accordance with the applicable latest approved provisions of the National Structural Code of the Philippines (NSCP). However, adequate soil exploration (including boring and load tests) shall also be required for lower buildings/ structures at areas with potential geological/geotechnical hazards. The written report of the civil/ geo-technical engineer including but not limited to the design bearing capacity as well as the result of tests shall be submitted together with the other requirements in the application for a building permit. Boring test or load test shall also be done according to the applicable provisions of the NSCP which set forth requirements governing excavation, grading and earthwork construction, including fills and embankments for any building/structure and for foundation and retaining structures. e. Seismic and Wind Load Analyses a. Other related documents 7. Electrical Documents Electrical plans and technical specifications containing the following: a. Location and Site Plans b. Legend or Symbols c. General Notes and/or Specifications d. Electrical Layout e. Schedule of Loads, Transformers, Generating/ UPS Units (Total kVA for each of the preceding items shall be indicated in the schedule) f. Design Analysis g. One Line Diagram 8. H-4 Mechanical Documents a. Location Plan and Key Plan b. General Layout Plan for each floor, drawn to a scale of not less than 1:100 m, indicating the equipment in heavier lines than the building outline with names of machinery and corresponding brake horsepower shall be indicated. c. Longitudinal and Transverse Sections of building and equipment base on the section lines drawn to scale of at least 1:100 m showing inter-floor relations and defining the manner of support of machines/equipment. Sections shall run longitudinally and transversely through the building length or width other than particularly detailed section for each machinery/equipment (fired and unfired pressure vessel, elevator, escalator, dumbwaiter, etc.). d. Isometric drawing of gas, fuel, oil system showing: Assembly of pipes on racks and supports, Legend and General Notes, capacity per outlet and complete individual piping system. Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures e. Plans drawn to scale of 1:100 m indicating location of store rooms, fuel tanks, fire extinguishing systems, fire doors, fire escape ladders and other protective facilities. f. Detailed drawings of all duct work installations, indicating dampers, controls, filters, fireproofing, acoustical and thermal insulation. g. Detailed Plans of machinery foundations and supports drawn to scale of at least 1:50 m. h. Detailed Plans of boilers and pressure vessels with a working pressure of above 70 kPa regardless of kilowatt rating. i. Design Computations and Detailed Plans of elevators, escalators, and the like drawn to scale of 1:50 m. j. For all installations, additions or alterations involving machinery of at most 14.9 kW, the signature of a duly licensed Mechanical Engineer shall be sufficient except fired and unfired pressure vessels, elevators, escalators, dumbwaiters, central/split/packaged type air conditioners and piping systems of steam, gas or fuels. k. Detailed plans of fire suppression systems, location of automatic and smoke detectors and alarm and initiating devices use to monitor the conditions that are essential for the proper operation including switches for the position of gate valves as well as alert and evacuation signals; the detailed layout of the entire safe area to be protected and the heat/smoke ventilation system. 9. Sanitary Documents a. For deep well, water purification plants, water collection and distribution systems, reservoirs, drainage and sewer systems, sewage treatment plants, malaria control structures, and sewage disposal systems: i. Location Plan and Site Plan ii. Detailed Plan and layout drawings of minimum scale 1:100 m. iii. Design Analysis and Technical Specifications iv. Cost Estimates b. For pest and vermin control, sanitation and pollution control facilities: i. Detailed plan, layout & drawing of abatement and control device of minimum scale 1:100 m. ii. Design analysis and technical specification iii. Cost Estimates 10. Plumbing Documents For all plumbing installations, additions and/or alterations involving hot and cold water supply, fixtures, sewage drainage and vent system, storm drainage and sewerage system within or adjacent to the building: a. Location Plan and Site Plan of minimum scale 1: 2000 m b. Plumbing Plans, Layouts and Details, of minimum scale 1: 50 m c. Legend and General Notes d. Isometric drawings of the systems e. Design analysis and technical specifications f. Cost Estimates 11. Electronics Documents Electronic plans and technical specifications for wired or wireless telecommunications systems, broadcasting systems, including radio and TV broadcast equipment for commercial and training purposes, cable or wireless television systems, information technology (IT) systems, security and alarm systems, electronic fire alarm systems, sound-reinforcement systems, navigational aids and controls, indoor and outdoor signages, electronically-controlled conveyance systems, electronic/computerized process controls and automation systems, building automation, management and control systems, including, but not limited to the following: a. General layout plans with legends H-5 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures b. c. d. e. f. g. Single line diagram Riser diagram Isometry of the system Equipment specifications Design analysis, as applicable Cost estimates b. Geodetic Documents Lot Survey Plans, including but not limited to: a. Vicinity Map/ Location Plan b. Lot Plan c. Relocation Survey Plan and Report d. Line and Grade e. Detailed Topographic Plan of the site and immediate vicinity Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures xvi. xvii. xviii. xix. xx. xxi. xxii. xxiii. Department of Agrarian Reform (DAR) Department of Agriculture (DA) Department of Labor and Employment (DOLE) National Housing Authority (NHA) National Council for the Welfare of Disabled Persons (NCWDP) Philippine Reclamation Authority (PRA) Metropolitan Manila Development Authority (MMDA) National Commission on Culture and the Arts (NCCA) c. Environmental Planning documents (for Project Sites at 5.0 hectares or larger in Total Land Area/ TLA) a. Vicinity Map/ Location Plan at a scale of at least 1:10,000 m. b. Framework Plan at a scale of at least 1:2,500 m showing existing and proposed access systems, connectivities, identified hazards, orientations (wind, sun, odor, noise, etc.), view corridors, and like information. c. Master Development Plan (MDP) at a scale of at least 1:1,250 m showing all setbacks and mandated legal easements (as applicable), proposed road rights-of-way (RROW, clearly delineating the carriageway and sidewalks), proposed building footprints at grade level, proposed outermost faces of buildings (OFB) at the second levels/ floors, floor to lot area (FLAR) used, gross floor area (GFA) to be generated, total GFA (TGFA) to be generated, building heights, and like information, to fully comply with Rules VII and VIII of the 2004 Revised IRR of P.D. No. 1096, the 1977 NBCP. d. Land Use Distribution (breakdown). 12. Clearances from Other Agencies a. A locational clearance shall be obtained by the design review applicant from the Office of the City/ Municipal Zoning Administrator. b. Whenever necessary, written clearances shall be obtained from the various authorities exercising and enforcing regulatory functions affecting buildings/ structures by the design review applicant. Application for said clearances shall be requested by the design review applicant. Such authorities which are expected to enforce their own regulations are: i. Department of Public Works and Highways (DPWH) ii. Air Transportation Office (ATO, now the Civil Aviation Authority of the Philippines or CAAP) iii. Housing and Land Use Regulatory Board (HLURB) iv. Local Government Unit (LGU) v. Department of Tourism (DOT) vi. Department of Environment and Natural Resources (DENR) vii. Department of Transportation and Communication (DOTC) viii. Department of Interior and Local Government (DILG) ix. Philippine Ports Authority (PPA) x. Department of Education (DepEd) xi. Department of Health (DOH) xii. Philippine Institute of Volcanology and Seismology (PHIVOLCS) xiii. Laguna Lake Development Authority (LLDA) xiv. Manila Waterworks and Sewerage System (MWSS) xv. National Water Resources Board (NWRB) H-6 H-7 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 2014 DPWH-BoD SPACE ALLOCATION STANDARDS BY OFFICE TYPE (Gross Floor Area/ GFA)* *The GFA excludes the main common areas such as common areas e.g. lobbies, building cores, stairs and fire exits, service or utility balconies and decks, parking spaces and access-ways (within the building footprint) and similar spaces. PARTICULARS MAXIMUM SPACE REQUIREMENTS (in Sq.M.) SPACE REQUIREMENT/S OF KEY OFFICIALS A. OFFICE OF THE SECRETARY OR ITS EQUIVALENT SG-31 POSITION 1. Secretary 72.00 2. Staff 4.00 - 6.00/ pax¹ 3. Conference Room 60.00 4. Reception Room 30.00 5. Toilet/ Bathroom 6.00 6. Pantry 10.00 7. Storage Area² 10.00 B. OFFICE OF THE UNDERSECRETARY OR ITS EQUIVALENT SG-30 POSITION 1. Undersecretary 63.00 2. Staff 4.00 - 6.00/ pax¹ 3. Conference Room 40.00 4. Reception Room 20.00 5. Toilet/ Bathroom 6.00 6. Pantry 10.00 7. Storage Area² 10.00 C. OFFICE OF THE ASSISTANT SECRETARY OR ITS EQUIVALENT SG-29 POSITION 1. Assistant Secretary 56.00 2. Staff 4.00 - 6.00/ pax¹ 3. Conference Room 30.00 4. Reception Room 20.00 5. Toilet/ Bathroom 6.00 6. Pantry 10.00 7. Storage Area² 10.00 D. OFFICE OF THE DIRECTOR IV OR ITS EQUIVALENT SG-28 POSITION 1. Director IV 36.00 2. Staff 4.00 - 6.00/ pax¹ 3. Reception Room 10.00 4. Toilet/ Bathroom 4.00 5. Pantry 5.00 6. Storage Area² 6.00 E. OFFICE OF THE DIRECTOR III OR ITS EQUIVALENT SG-27 POSITION 1. Director III 24.00 2. Staff 4.00 - 6.00/ pax¹ 3. Toilet/ Bathroom 4.00 F. DIVISION-LEVEL UNIT 1. Division Chief 12.00 2. Staff 4.00 - 6.00/ pax¹ 3. Lobby/ Lounge 0.25/ pax ¹includes circulation area ²for storage of supplies, equipment, records/ files and other materials H-8 Design Guidelines, Criteria and Standards: Volume 6 – Public Buildings and Other Related Structures 2014 DPWH-BoD SPACE ALLOCATION STANDARDS BY TYPE OF USAGE (Gross Floor Area/ GFA)* *The GFA excludes the main common areas such as common areas e.g. lobbies, building cores, stairs and fire exits, service or utility balconies and decks, parking spaces and access-ways (within the building footprint) and similar spaces. PARTICULARS A. MAIN LOBBY B. BUREAU-LEVEL FACILITIES 1. Conference Room 2. Pantry 3. Storage Area¹ C. TRAINING ROOM MAXIMUM SPACE REQUIREMENTS (in Sq.M.) SPACE REQUIREMENT/S 0.25/ pax; minimum for lobby as waiting/ standing room is 0.28/ pax D. QUARTERS 1. Single Bedroom 2. Twin-Sharing Bedroom 3. Toilet/ Bathroom 4. Pantry E. TOILET FACILITIES² 1. For Agencies providing frontline services (for Public use) 30.00 10.00 15.00 2.40/ pax including aisles and services such as storage, production room and toilet for the staff 4.00 8.00 4.00 10.00 1.50 per one water closet (WC) enclosure 1 WC/ 1-100 for female 1 WC/ 1-200 for male 1 urinal/ 1-100 for male 1 lavatory/ 2 WC 2. For Agencies with no clientele (for Employee 1 WC/ 1-15, 2WC/ 16-35, 3WC/ 36-55 for use) male and female 1 lavatory/ 40 for male and female; or 1 lavatory/ 2 WC ¹for storage of supplies, equipment, records/ files and other materials ²based on the Revised National Plumbing Code of the Philippines (R.A. No. 1378) H-9
