Petroleum Development Oman L.L.C.,
UNRESTRICTED
June 2004
Document ID: SP-1275
Filing key: 1275
Specification for Civil & Building Works
Design Criteria Manual
SP-1275
(OLD ERD 17-04)
This document is the property of Petroleum Development Oman, LLC. Neither the whole nor any
part of this document may be disclosed to others or reproduced, stored in a retrieval system, or
transmitted in any form by any means (electronic, mechanical, reprographic recording or otherwise)
without prior written consent of the owner.
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Authorised For Issue June 2004
Signed:............................................................
Ali Nasser Al Jahadhamy, TTO/2 (UEC)
CFDH, Civil Engineering
The following is a brief summary of the recent revisions to this document. Details of all revisions prior
to these are held on file by the issuing department.
Version
No.
Revision 0
Date
Author
Scope / Remarks
May ‘90
W. Von Schmidt, TTH/4
First Issue
Revision 1
April ‘95
BEZ/5
Updated to standard format
Version 1.0
June ‘04
Ali Nasser Al Jahadhamy,
TTO/2 (UEC)
Converted to Specification as per PDO
policy and minor changes to the text
SP-1275
Page i
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Contents
Authorised For Issue June 2004................................................................................................ i
Contents ..................................................................................................................................... ii
1.0 Introduction ......................................................................................................................... 1
1.1 Purpose............................................................................................................................. 1
1.2 User Guidelines................................................................................................................ 1
1.3 Changes to the Specification............................................................................................ 1
1.4 Applicable Standards, Specifications and Codes ............................................................. 2
1.4.1
PDO Standards................................................................................................ 2
1.4.2
Omani Standards ............................................................................................. 3
1.4.3
International Standards ................................................................................... 3
1.4.4
SIEP / Shell GSI Standards ............................................................................. 5
1.5 Compliance with Standards ............................................................................................. 5
2.0 Scope ..................................................................................................................................... 6
2.1 General............................................................................................................................. 6
2.2 Units of Measurement...................................................................................................... 6
2.3 Civil Design Requirements .............................................................................................. 7
2.3.1
Basic Information............................................................................................ 7
2.3.2
Soil Investigation ............................................................................................ 7
2.3.2.1 Scope of Investigation .................................................................................... 8
2.3.2.2 Soil Investigation Report................................................................................ 9
2.3.3
Preliminary Civil Design................................................................................. 9
2.3.4
Final Civil Design ......................................................................................... 10
2.3.5
Structural Design........................................................................................... 11
2.3.5.1 Steelwork...................................................................................................... 11
2.3.5.2 Concrete ....................................................................................................... 12
2.3.5.3 Block Work .................................................................................................. 15
2.3.6
Engineering Drawings................................................................................... 16
2.3.7
Design Requirements for Specific Buildings ................................................ 20
2.3.8
Design Requirements for Pipe Supports ....................................................... 20
2.4 Design Loads ................................................................................................................. 20
2.4.1
Dead Loads ................................................................................................... 20
2.4.2
Live Loads..................................................................................................... 21
2.4.3
Wind Loading ............................................................................................... 21
2.4.4
Design Loading For Crane Gantry Girders ................................................... 23
2.4.5
Dynamic Loads ............................................................................................. 24
2.4.6
Load Combinations ....................................................................................... 24
2.5 Climatic Aspects of Buildings ....................................................................................... 24
2.5.1
Climatic Design Criteria................................................................................ 25
2.5.2
Siting & Orientation...................................................................................... 25
2.6 Means of Escape and Fire Protection............................................................................. 29
2.7 Minimum Building Requirements.................................................................................. 29
2.7.1
PDO Buildings .............................................................................................. 29
2.7.1.1 PDO Office Buildings .................................................................................. 29
2.7.1.2 PDO Sleeping Accommodation ................................................................... 30
2.7.1.3 PDO Ablution Requirements........................................................................ 30
2.7.2
Contractors Buildings ................................................................................... 30
2.7.2.1 Contractors SS Accommodation & Ablution Facilities................................ 30
2.7.2.2 Contractors JS/JE Accommodation & Ablution Facilities ........................... 31
2.7.2.3 Contractors Kitchen and Messing Facilities................................................. 31
2.8 Building Elements and Finishes..................................................................................... 38
2.8.1
Walls ............................................................................................................. 38
2.8.1.1 Structural Loading........................................................................................ 38
2.8.1.2 Thermal Requirements ................................................................................. 39
June 2004
Page ii
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.8.1.3 Noise Requirements......................................................................................39
2.8.1.4 Thermal Movements / Structural Freedom ...................................................39
2.8.1.5 Economic Aspects ........................................................................................39
2.8.1.6 Wall Finishes ................................................................................................40
2.8.2
Floors.............................................................................................................40
2.8.2.1 External Floors & Hard standings ................................................................40
2.8.2.2 Internal Floors...............................................................................................40
2.8.2.3 Floor Finishes ...............................................................................................41
2.8.3
Skirting ..........................................................................................................41
2.8.4
Ceilings..........................................................................................................41
2.8.5
Doors .............................................................................................................41
2.8.6
Windows........................................................................................................41
2.8.7
Ironmongery ..................................................................................................41
2.9 Staircases and Platforms.................................................................................................41
2.9.1
Flow Capacities of Staircases ........................................................................42
2.9.2
Riser / Going Relationship ............................................................................42
2.9.3
Fire Rating for Structures ..............................................................................45
2.10
Roofs ...................................................................................................................50
2.10.1
Thermal Requirement ....................................................................................50
2.10.2
Water Discharge ............................................................................................50
2.10.3
Flat Roofs ......................................................................................................50
2.10.4
Pitched Roofs ................................................................................................51
2.10.5
Roof Sheeting ................................................................................................51
2.11
Built-in-Furniture ................................................................................................52
2.12
Security ...............................................................................................................52
2.12.1
Fencing and Gates .........................................................................................52
2.13
Paint Finish & Colour .........................................................................................55
2.13.1
External Surfaces...........................................................................................55
2.13.2
Internal Surfaces............................................................................................55
2.14
External Works ...................................................................................................55
2.14.1
Site Preparation .............................................................................................55
2.14.2
Landscaping...................................................................................................56
2.14.2.1 Hard Landscaping.......................................................................................56
2.14.2.2 Soft Landscaping ........................................................................................56
2.14.2.3 Screening Requirements .............................................................................56
2.14.3
Roads .............................................................................................................56
2.14.3.1 Internal Access Road ..................................................................................56
2.14.3.2 External Access Roads ...............................................................................57
2.14.4
Car Parks .......................................................................................................58
2.14.4.1 Standard Parking Layout ............................................................................58
2.14.4.2 Car Parks Construction ...............................................................................58
2.14.4.3 Road Signs & Markings..............................................................................58
2.14.5
Materials Storage Yards ................................................................................66
2.14.6
Footpaths .......................................................................................................66
2.14.6.1 Footpath Dimensions ..................................................................................66
2.14.6.2 Footpath Construction ................................................................................66
2.14.7
Well Location and Flow/Bulk Line Layout...................................................66
2.14.7.1 Piping Corridors .........................................................................................68
2.15
Building Services Design Requirements.............................................................68
2.15.1
Manufacturers & Vendors .............................................................................68
2.15.2
Specification & Drawings .............................................................................68
2.15.3
As Built Drawings .........................................................................................69
2.15.4
External Services ...........................................................................................69
2.16
Air-Conditioning & Ventilation..........................................................................69
2.16.1
Design Criteria for Air Conditioning & Ventilation Works..........................70
2.16.1.1 Outdoor Conditions ....................................................................................70
2.16.1.2 Indoor Conditions .......................................................................................70
2.16.1.3 Equipment Overcapacity.............................................................................70
2.16.2
Chilled Water ................................................................................................70
SP-1275
Page iii
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.16.2.1 Chiller compounds & Equipment............................................................... 70
2.16.2.2 Controls ...................................................................................................... 71
2.16.2.3 Pipe work.................................................................................................... 71
2.16.3
Specialist Areas............................................................................................. 71
2.16.3.1 Battery rooms ............................................................................................. 71
2.16.3.2 Electrical Substations & Switch Houses .................................................... 72
2.16.3.3 Gas Bottle Stores ........................................................................................ 72
2.16.3.4 Kitchens...................................................................................................... 73
2.16.3.5 Laboratories................................................................................................ 73
2.16.3.6 Temporary Buildings.................................................................................. 74
2.16.4
Condensate Drains ........................................................................................ 74
2.16.5
Refrigerant Pipe work ................................................................................... 74
2.16.6
Automatic Shutdown..................................................................................... 74
2.16.7
Legionnaires Disease .................................................................................... 74
2.17
Plumbing............................................................................................................. 74
2.17.1
Potable Water................................................................................................ 75
2.17.1.1 Water Demand............................................................................................ 75
2.17.1.2 Isolating Valves, Air Valves, Washouts..................................................... 75
2.17.1.3 Water Meters .............................................................................................. 76
2.17.1.4 Storage........................................................................................................ 76
2.17.1.5 Pumping ..................................................................................................... 76
2.17.1.6 Sterilisation................................................................................................. 76
2.17.2 Domestic Hot & Cold Water............................................................................... 76
2.17.2.1 Water Consumption.................................................................................... 76
2.17.2.2 Water Systems............................................................................................ 77
2.17.2.3 Isolation...................................................................................................... 77
2.17.2.4 Insulation.................................................................................................... 77
2.17.2.5 Sterilisation................................................................................................. 77
2.17.2.6 Flush Control Valves.................................................................................. 77
2.17.2.7 Water Closet spray Assemblies .................................................................. 78
2.17.2.8 Emergency Showers ................................................................................... 78
2.17.2.9 Emergency Eye Wash Stations................................................................... 78
2.17.2.10 Hot Water Service Dead legs ................................................................... 78
2.17.3
Drainage ........................................................................................................ 78
2.17.4
Sewerage ....................................................................................................... 78
2.17.4.1 Flow Rates.................................................................................................. 79
2.17.4.2 Minimum Pipe Diameters........................................................................... 79
2.17.4.3 Location of Manholes................................................................................. 79
2.17.4.4 Interceptors................................................................................................. 79
2.17.4.5 Pipe work Under Buildings ........................................................................ 79
2.17.4.6 Structural Penetrations ............................................................................... 80
2.17.4.7 Connection to Existing Sewers................................................................... 80
2.17.4.8 Sewage Pumping Stations .......................................................................... 80
2.17.5
Liquid Petroleum Gas ................................................................................... 80
2.17.5.1 Gas Cylinder Stores.................................................................................... 80
2.17.5.2 Regulators................................................................................................... 80
2.17.5.3 Emergency Shutdown................................................................................. 80
2.17.5.4 Domestic Installations ................................................................................ 81
2.17.6
Laboratory Piped Services ............................................................................ 81
2.17.6.1 Pipe work.................................................................................................... 81
2.17.6.2 Hot and Cold Water.................................................................................... 81
2.17.6.3 Distilled Water ........................................................................................... 81
2.17.6.4 Compressed Air.......................................................................................... 81
2.17.6.5 Vacuum ...................................................................................................... 81
2.17.6.6 Special Gases.............................................................................................. 81
2.17.7
Fire Fighting Water....................................................................................... 82
2.17.7.1 Hose reels ................................................................................................... 83
2.17.7.2 Hydrants ..................................................................................................... 83
2.17.7.3 Fire Storage Tanks...................................................................................... 83
June 2004
Page iv
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.17.7.4 Fire Pumps ..................................................................................................83
2.17.8
Irrigation........................................................................................................83
2.17.8.1 Demand.......................................................................................................84
2.17.8.2 System Components ...................................................................................84
2.17.8.3 Storage ........................................................................................................85
2.17.8.4 Pumping & Filtration ..................................................................................85
2.17.8.5 Control Systems..........................................................................................85
2.17.8.6 Pipe work Identification .............................................................................85
2.17.8.7 Sprinklers....................................................................................................85
2.17.8.8 Emitter Allocations .....................................................................................85
2.17.9
Swimming Pools............................................................................................86
2.18
Sewage Treatment...............................................................................................86
2.18.1
Location of STP.............................................................................................87
2.18.2
Pollution Load ...............................................................................................87
2.18.3
Sewage Treatment Plant ................................................................................87
2.18.4
Treated Effluent Standard..............................................................................89
2.18.5
Facultative Ponds ..........................................................................................91
2.18.6
Septic Tanks ..................................................................................................91
2.18.7
Hydrocarbon Disposal Pits ............................................................................92
2.19
Electrical Services...............................................................................................92
2.19.1
Electrical Supply ...........................................................................................93
2.19.1.1 Rated Voltage & Frequency .......................................................................93
2.19.1.2 Loads ..........................................................................................................93
2.19.1.3 Voltage Drop ..............................................................................................93
2.19.1.4 Underground Cable De rating.....................................................................94
2.19.1.5 Underground Cables ...................................................................................95
2.19.1.6 Earthing ......................................................................................................95
2.19.2
Small Power ..................................................................................................95
2.19.2.1 Power Supply..............................................................................................96
2.19.2.2 Power Consumption....................................................................................96
2.19.2.3 Voltage Drop ..............................................................................................97
2.19.2.4 Cables .........................................................................................................97
2.19.2.5 Conduit & Trunking ...................................................................................97
2.19.2.6 Earthing & Bonding....................................................................................97
2.19.3
Indoor Lighting..............................................................................................97
2.19.3.1 Luminaries ..................................................................................................98
2.19.4
Emergency Lighting ......................................................................................98
2.19.4.1 Escape Route Lighting................................................................................99
2.19.4.2 Exit Lighting...............................................................................................99
2.19.4.3 Vital Lighting..............................................................................................99
2.19.5
Outdoor Lighting...........................................................................................99
2.19.5.1 Lighting Fixtures ......................................................................................100
2.19.5.2 Illumination Levels ...................................................................................100
2.20
Fire Detection & Alarm ....................................................................................100
2.20.1
Operational Criteria .....................................................................................100
2.20.2
Cables ..........................................................................................................101
2.21
Lightning Protection .........................................................................................102
2.22
Telecom Networks ............................................................................................102
2.22.1
Data Communications Networks.................................................................103
2.22.2
Television & Video Networks.....................................................................103
2.22.3
Audio Systems.............................................................................................103
2.22.4
Nurse Call Systems......................................................................................103
Appendices .............................................................................................................................104
Appendix A: Glossary of Definitions & Abbreviations.....................................................105
A.1 General Definitions & Terminology .................................................................105
A.2 Abbreviations ....................................................................................................106
A.3 Abbreviations for Building Types.....................................................................110
A.4 Abbreviations for Room Types.........................................................................116
SP-1275
Page v
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix B: Weights of General Building Materials ....................................................... 120
Appendix C: Typical Live Loads & Finishes .................................................................... 123
Appendix D: Wall Finishes ............................................................................................... 138
Appendix E: Floor Finishes............................................................................................... 140
Appendix F: Skirting Types .............................................................................................. 142
Appendix G: Ceilings ........................................................................................................ 143
Appendix H: Door Types .................................................................................................. 144
Appendix I: Window Types (Glazing) .............................................................................. 145
Appendix J: Ironmongeries ............................................................................................... 146
Appendix K: Internal Environment Design Criteria.......................................................... 160
Appendix L: Electrical Requirements................................................................................ 168
Appendix M: SP User - Comment Form ........................................................................... 177
June 2004
Page vi
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
1.0
Introduction
1.1
Purpose
Version 1.0
The purpose of this document is to specify the minimum requirements and recommendations
for “Structural Design and Detail Engineering of Civil and Building Works” and is
intended for use by PDO and its nominated Consultants and Contractors for the
development and operation of Company facilities.
This specification is intended to:
1.2
-
Set the Company standards for facilities along the facilities life cycle.
-
Disseminate and record facilities related information, experience and procedures.
User Guidelines
This Specification supersedes the ERD-17-04 ‘Civil & Building Design Criteria Manual’.
Other than the conversion or formatting, the following are the main changes to this
document.
-
Applicable Standards, Specifications and Codes are revised.
-
Tanking Details for the Concrete Protection Works are revised
-
Accommodation facility requirements for PDO and Contractors camps in section 2.7
and its subsections are revised
-
Staircases & Platforms requirements in section 2.9 revised and added more.
-
Mandatory Warning Sign requirement for the Graded/Tarmac Transition are added
as new in section 2.14.3
-
Graded Road section details (Fig 4) and its material specifications are revised.
For all HSE requirements, the User should refer the CP-122 ‘Code of Practice for Health,
Safety and Environmental Protection’ and other documents referenced therein.
1.3
Changes to the Specification
Custodian of this document is the Corporate Functional Discipline Head (CFDH) of Civil
Engineering. Any User of this document, who encounters an inaccuracy or ambiguity, is
requested to notify the CFDH using the SP user-comment form provided in Appendix-M.
Reviews and modifications or changes to the specification will normally be made by the
CFDH every four years or earlier when justified.
SP-1275
Page 1
June 2004
Version 1.0
1.4
Specification for Civil & Building Works – Design Criteria Manual
Applicable Standards, Specifications and Codes
This Specification shall be read in conjunction with the latest revisions of the following
Standards, Specifications and Codes.
1.4.1
PDO Standards
June 2004
PDO-ERD-00-01
:
PDO Guide to Engineering Standards & Procedures
PDO-ERD-00-06
:
Preparation & Content of Engineering Drawings
IP 15
:
Institute of Petroleum Model Code of Safe Practice Part
15 – Area Classification Code for Petroleum
Installations
SP-1273
:
Specification for Civil & Buildings - ‘Standard Drawing
Index’
SP-1278
:
Specification for Site Selection and Soil Investigation
Works – ‘Engineering Guidelines Manual’
SP-1274
:
Specification for Civil & Building Construction
‘Guideline to Materials Testing’
SP-1279
:
Specification for Civil & Building Construction
SP-1285
:
Specification for Civil & Building’s Utility Services
SP-1280
:
Specification for Swimming Pools – ‘Design &
Construction Guidelines’
SP-1281
:
Specification for Roads – ‘Guide to Safe Road Works’
SP-1282
:
Specification for Reinforced Concrete – ‘Production &
Construction Guidelines’
SP 1283
:
Specification for Standard Sunshades – ‘Design
Requirements & Standard Drawings’
SP-1276
:
Specification for Standard Control Building – ‘Design
Requirements & Standard Drawings’
SP-1099
:
Specification for Electrical Installation Practice
SP-1104
:
Specification for Electrical Safety Rules.
SP-1105
:
Specification for Electrical Standard Drawings List.
SP-1109
:
Specification for Earthing & Bonding.
SP-1110
:
Specification for Electrical Supplies in Mobile Camps.
SP-1127
:
Plant Equipment Layout Specifications
PDO-ERD-71-01
:
Underground & Internal Telephone Cable Networks.
SP-1075
:
Specification for Fire & Explosion Management
Page 2
-
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
1.4.2
1.4.3
SP-1275
Version 1.0
SP-1284
:
Specification for Signs & Signboards – ‘Standard Signs
Catalogue’
SP-1277
:
Specification for Transportable Accommodation Units –
‘Design Requirements & Standard Drawings’
CP122
:
Code of Practice for ‘Health, Safety & Environmental
Protection’
SP-1231
:
Health,
Safety
&
(Occupational Health)
PGSC List
:
Product Group Service Codes List for Civil Products
Environment
Specification
Omani Standards
Highway Design Manual
:
Sultanate of Oman - Ministry of
Communications
General Specification for Roads
:
Sultanate of Oman - Ministry of
Communications
Limits of Reuse & discharge of Waste Water
:
Ministry of Environment
Bye-Laws & Ordinances
:
Sultanate of Oman - Royal
Oman Police
Street Names & Property Numbering Signs
:
Sultanate of Oman – Capital
Municipality
International Standards
BS 449
:
Specification for the use of Structural Steel in Buildings.
BS 648
:
Schedule of weights of building materials
BS 2573
:
Rules for the design of cranes
BS 3202
:
Laboratory Furniture & Fittings
BS 4800
:
Schedule of Paint Colours for building purpose
BS 5266
:
Emergency Lighting
BS 5268
:
Structural Use of Timber.
BS 5482
:
Code of Practice for Domestic Butane and Propane gas
burning installations
BS 5588
:
Fire Precaution in the Design, Construction and use of
buildings
BS 5628
:
Code of Practice for the Use of Masonry.
BS 5925
:
Code of Practice for ventilation, principles and designing
for natural ventilation
BS 5839
:
Fire detection and Alarm systems for buildings
Page 3
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
BS 5930
:
Code of Practice for Site Investigations.
BS 5950
:
Structural Use of Steelwork in Buildings.
BS 6399
:
Loading for Building.
BS 6651
:
Code of Practice for Protection of Structures against
Lightning
BS 6700
:
Specification for Design, Installation, Testing &
Maintenance of services supplying water for domestic use
within buildings & their Cartilages.
BS 7543
:
Guide to durability of buildings and building elements
products and components
BS 7668
:
Specification for weldable structural steels. Hot finished
structural hollow sections
BS 8004
:
Code of Practice for Foundations.
BS 8110
:
Structural Use of Concrete.
BS 8206
:
Code of Practice for Artificial Lighting
BS 8666
:
Specification for scheduling, dimensioning, bending and
cutting of steel reinforcement for concrete
BS EN 54
:
Fire detection and Fire Alarm system
BS EN 197
:
Cement composition, specification
criteria for common cements
BS EN 752
:
Drain & Sewer systems outside buildings
BS EN ISO 4066
:
Construction drawings bar scheduling
BS EN 10025
:
Hot rolled products of non alloy structural steels
BS EN 10210
:
Hot Finished Structural Hollow Sections of non alloy and
fine grain structural steels
BS EN 12056
:
Gravity Drainage systems inside buildings
BS EN 13150
:
Work Benches for Laboratories.
Requirements and Test Methods
BS ISO 15686
:
Buildings and Constructed assets – Planning, General
Principles and Prediction Service Life Procedures
BS ISO 8995
:
Lighting of Indoor Work Places
CP 3
:
Code of Basic Data for the Design of Building.
CP 2012
:
Code of Practice for Foundations for Machinery
ASHRAE
:
American Society of Heating, Refrigeration and Airconditioning Engineers Inc. (ASHRAE).
June 2004
Page 4
and
conformity
Dimensions, Safety
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
1.4.4
1.5
Version 1.0
CIBSE
:
Chartered Institute of Building Services Engineers
(CIBSE) Guides.
CARRIER
:
Carrier Air-conditioning Co.
conditioning System Design.
IEE
:
Institution of Electrical Engineers (IEE) Regulations for
Electrical Installations.
IEC 60364
:
Electrical Installation of Buildings
IEC 60439-4
:
Low voltage switchgear and control gear assemblies
DIN 57510 / VDE 0510
:
Specifications
Equipment.
for
Handbook
Accommodation
for
and
Air-
Battery
SIEP / Shell GSI Standards
DEP 31.76.10.10-Gen.
:
Heating, Ventilation and Air-Conditioning of Plant
Buildings
DEP 31.76.10.11-Gen.
:
Installation, Testing, Balancing & Commissioning of
HVAC systems
DEP 32.31.50.31-Gen.
:
Analyser Houses
DEP 33.64.10.10-Gen.
:
Electrical Engineering Guidelines
DEP 33.65.50.31-Gen.
:
Static DC Uninterruptible Power Supply (DC UPS)
Units.
DEP 34.00.01.30-Gen.
:
Minimum Requirements for Structural Design and
Engineering
DEP 34.17.00.32-Gen.
:
Design and Engineering of Buildings
DEP 34.17.10.30-Gen.
:
Reinforced Control Buildings (Explosive Proof)
DEP 34.17.10.31-Gen.
:
Laboratories
DEP 34.19.20.11-Gen.
:
Fire Hazards and Fireproofing/cold splash protection of
steel structures
DEP 34.28.00.31-Gen.
:
Steel Structures
DEP 80.00.10.10-Gen.
:
Area Classification (Amendment / Supplement to IP 15)
Compliance with Standards
Any deviations from this part of Specifications shall be subject to Company approval and
shall be advised in writing to the Custodian.
In all cases the Company shall determine the adequacy of the design carried out and Works
executed by the Contractor in accordance with this Specifications.
SP-1275
Page 5
June 2004
Version 1.0
2.0
Scope
2.1
General
Specification for Civil & Building Works – Design Criteria Manual
This Specification is an Engineering Guidelines for the Company Civil & Building Facilities
and includes applicable design and detailing data and requirements.
2.2
Units of Measurement
In general the SI Units of Measurements shall apply. In addition, the following are used in
this document.
Acidity / Alkalinity of Water
:
pH
Biochemical oxygen demand
:
BOD
Dimension
:
metre, millimetre
Electrical resistance
:
ohms
Flow
:
litres per second
Force
:
Newton N = 0.9807 kg
Frequency
:
hertz Hz
Power
:
watt, kilowatt
W, kW
Pressure
:
kilopascals (gauge)
kPa, kPa(g)
Atmospheres bar
100 kPa
m, mm
l/s
Noise
:
decibel ‘A’ scale
dBA
Refrigeration :
:
kilowatt
kW
:
Tons of refrigeration
TR = 3.517 kW
Relative Humidity
:
RH
Temperature
:
degrees Celsius
0
Velocity
:
metres per second
m/s
Weight
:
gram, kilogram
g, kg
June 2004
Page 6
C
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.3
Civil Design Requirements
2.3.1
Basic Information
Version 1.0
The Company should provide the information required to carry out the project to the
Consultant in the following form:
-
Scope of works
-
Project specification
-
Location drawing(s)
The information should include, but not be limited to, the following:
-
The intended use of the structure(s) or project
-
The required Design Life of the structure or various structures indicating
whether Permanent, Semi-permanent or Temporary (as defined in Appendix
A section A.1 of this document).
-
Any information on existing site surveys, site investigations etc. that may be
available.
The Consultant shall bear in mind the following:
Building appearance shall conform to established PDO requirements, local customs, and if
applicable, existing buildings.
Engineering drawings shall comply with PDO-ERD-00-06 ‘Preparation & Content of
Engineering Drawings’ and shall be issued in the following stages:
-
Preliminary
-
Final (Tender for comment)
-
Tender
-
Contract
-
Working (for construction)
-
As built
Building should be designed to allow for future horizontal extension unless specified
otherwise by the Company.
2.3.2
Soil Investigation
The purpose of soil investigation is to provide information on the soil conditions for design
and construction of civil and structural engineering works. The soil investigation work shall
be carried out in accordance with SP-1278: ‘Specification for Site Selection & Soil
Investigation Works – ‘Engineering Guidelines’.
SP-1275
Page 7
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
The main aims of a soil investigation may be defined as follows:
-
To enable a safe, durable and economic design for the works to be
produced.
-
To enable the works to be constructed safely.
-
To ensure that the construction of the works does not infringe on
environmental requirements.
2.3.2.1 Scope of Investigation
Depending on the requirements of the project, the investigation may be used to obtain
information on, but not limited to, the following:
-
Bearing capacity
-
Settlement (and differential settlements)
-
Behavior of ground water in respect of uplift on foundations, effects on
bearing capacity, pollution and flow into excavations
-
Slope stability of embankments, cuttings and excavations
-
Swelling properties of soils (clays, silts, gypsum etc.)
-
Suitability of soil for fill
-
Chemical composition of soil and groundwater with particular reference to
chemical attach/corrosion on construction materials
-
Dynamic Shear Modulus for Machine Foundations
-
Details of rock strata, dip, strike etc.
The Consultant shall however carefully investigate the necessity for a soil investigation, and
if required, the type of information needed. The Consultant may consider the following:
A study of available information of the area such as geological maps, water and oil well
logs, hydrological data and site investigation reports of adjacent sites.
A site visit shall be carried out to obtain the information on the type and behaviour of
adjacent structures (cracks, sags due to differential settlements, rock outcrops which give an
indication of the presence of the depth of bed rock etc).
For extensions, single storey buildings on raft type foundations, pipelines etc., the
Consultant may consider a site investigation unnecessary based on the information obtained
from above, nevertheless it is the Consultants responsibility to ensure foundations are
suitable for the building/structure and ground conditions.
However, for multi-storey structures, installation of large sized tanks (where settlement
predictions are important) installation of vibrating or rotary equipment (with considerable
dynamic loading) etc, dedicated soils investigations shall be undertaken.
June 2004
Page 8
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.3.2.2 Soil Investigation Report
Soil Investigation Reports shall comply with SP-1278 Specification for Site Selection & Soil
Investigation Works – ‘Engineering Guidelines’ and BS-5930: Code of Practice for Site
Investigations.
The report shall provide information on the items noted in section 2.3.2.1 as necessary. The
report shall be factual with engineering recommendations.
Recommendations, information and discussions shall be based on anticipated details of the
structure such as, type of foundations, founding levels, foundation loadings, overturning
forces, construction procedures and details and any special construction methods. Should
any of these items significantly change during the procedure of design, the Consultant shall
review the validity of the original report recommendations and seek further advice as
necessary.
The soils report shall clearly state how the recommendations have been arrived at and shall
include copies of the Terzaghi curves used etc, to enable the Consultant to conclude the size
of safety factors used to obtain the allowable bearing pressures, etc.
All reports shall be loaded in electronic form to PDO live link system for reference.
2.3.3
Preliminary Civil Design
The Consultant shall undertake preliminary designs. During this process, the Consultant
shall advise the Company on alterations considered necessary, if any, regarding orientation,
location etc, in view of local climatic conditions, topography or any other aspects. Such
alternations shall only be implemented if agreed by the Company.
In order to achieve preliminary designs, the Consultant shall be fully acquainted with the
site. To obtain the necessary knowledge the Consultant shall visit the site. The number of
visits, and personnel visiting the site, will be dependent on the project, however the
Consultant shall ensure adequate knowledge is gained.
Preliminary designs shall comprise:
-
Site surveys (preliminary or final), which shall include details of existing
services, etc, as applicable (Various site and topographical surveys are
already available within the Company).
-
Site layout plan(s), showing the location of buildings and plant, and
indicating true North and prevailing wind direction(s).
-
A plan of every floor, indicating positions, dimensions, levels and intended
use of the rooms in the building, including typical furniture and equipment
layout where applicable.
-
Schematic elevations and typical cross sections.
-
Details of ground water levels for buildings containing basements.
-
Schedules of basic structural materials (concrete, steel, timber, etc,).
It shall be noted that locally manufactured materials shall be used wherever possible as long
as such materials are technically acceptable. In support of the Company’s drive to promote
local industry.
SP-1275
Page 9
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
The Consultant is required, to some extent, to consider relaxing design specifications (and
hence investigate the financial consequences of the resulting operating and capital costs
associated with such a relaxation). All other civil/building materials shall be chosen out
from the Company PGSC (Product Group Service Codes) list for Civil Products. All of
which (with minor exceptions) have local agents.
-
Preliminary civil/structural design assessment to cover structural stability,
robustness, concept, preliminary sizing of major elements and details of any
key elements.
-
A list of any assumed design parameters.
Preliminary designs shall include details of alternative construction and cost comparisons in
order to achieve both technically and economically viable solutions.
2.3.4
Final Civil Design
The Consultant shall obtain, as a minimum, the following information in order to undertake
the final design and details.
-
Intended use of structure (refer section 2.3.1).
-
The design life of the structure (Temporary, Semi-permanent or Permanent
(refer Appendix A section A.1).
-
Detailed site surveys including details of all existing services (if applicable)
and likely future building service runs for water, power, sewage disposal,
telephones, etc.
-
Soil Investigation (refer section 2.3.2)
-
Design load requirements including meteorology (refer section 2.4)
-
Details of surrounding topography
-
Details of exposure conditions (acidic environment, saline environment,
etc.)
The Consultant shall produce thorough and complete sets of detailed design calculations and
shall be approved by the Company. All calculations shall indicate, clearly and concisely the
output and conclusions of each particular solution.
Calculations shall be preceded with a standard information sheet, containing all of the above
information, plus additional details as shown in the project related drawings and documents.
The following Codes of Practice and British Standards shall be used as a minimum for the
final design, unless alternative codes are agreed and approved by the Company.
June 2004
BS 6399
:
Loading for Building
BS 5950
:
Structural use of Steelwork in Buildings
BS 5628
:
Code of Practice for the use of Masonry
BS 5268
:
Structural use of Timber
BS 8110
:
Structural use of Concrete
Page 10
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
BS 8004
:
Code of Practice for Foundations
CP 2012
:
Code of Practice for Foundations for Machinery
Final design shall include, but not be limited to:
2.3.5
-
Layout plan(s) showing the locations and orientation of the building(s).
-
Full working drawings showing the structural and civil designs of the entire
project giving full details of all the elements in the building(s) (refer section
2.3.6).
-
Full working drawings showing all the architectural, mechanical, electrical
and plumbing details for the entire project (refer section 2.3.6).
-
Plans of every floor and roof, cross sections through individual floors and
essential elevations of the building. These drawings shall show the position,
form, dimensions and materials of all the various parts of the buildings and
structures.
-
Collected design data and calculations for climatic consideration, logically
leading to the conditions expected to prevail in the building.
-
Proof, by means of calculations, material and equipment data that the
criteria for comfort shall be satisfied.
-
Particular Specifications of works, to be added to the PDO Standard
Specifications, and any other specifications necessary, in sufficient detail to
invite competitive bids from erection contractors, so drafted as to provide
minimum possible disparity between the interpretations by such contractors.
These specifications shall also include a concept programme of erection, the
final material specifications and working details.
-
Such additional detailed designs, specifications and drawings, in order to
define fully all details of the building, and to ensure a smooth and effective
completion of the work.
-
A complete set of calculations for all disciplines, properly headed, indexed
and numbered, with the contract number on each sheet. All sheets shall be
A4 format and of a suitable quality for easy reproduction.
Structural Design
In the design for structural elements, the load factors, material factors, permissible stresses,
etc. shall be in accordance with the requirements of the design code being applied. Due
consideration shall be given to exceptional load conditions and accident cases for which the
design may be undertaken with reduced load and material safety factors as allowed by the
design code. Refer to Appendix B for Weights of General Building Material and Appendix
C for Live Loads.
2.3.5.1 Steelwork
Deflection in steel structures shall be limited to the values given in Table 1.
Deflections due to dead loads, where limits are given for live loads in Table 1, shall not
impair the strength and efficiency of the structure, lead to damage of the finishing or to be
unsightly. Measures to nullify the effects of deflection due to dead loads by adjusting the
casing on cased members or by pre-cambering should be considered.
SP-1275
Page 11
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Horizontal deflections at crane rail level due to spread of the supporting structure shall be
considered and shall not exceed the value in Table 1, the manufacturers recommendations or
affect the performance of the crane. When checking for deflections the most adverse
realistic combination and arrangement of loads should be assumed.
Material grades should be as follows:
Structural hollow sections: BS EN 10210 Grade S275
All other structural steelwork: BS EN 10025 Grade S275 JR
Connections should, whenever possible, avoid the use of high strength friction grip bolts.
However, if used for special technical reasons, the mode of checking tension shall be by the
use of load indicating washers.
Bolt grades on a particular job should be standardised where possible to prevent incorrect
usage of bolt types on site.
Table 1: Allowable Deflections for Structural Steelwork Live Loadings.
Member
Maximum allowable
Deflection
where
Piping is supported
Maximum
allowable
Deflection where Piping
is not supported
Purlins
N/A
1/250th of the span
Supporting beams
1/500th of the span
(due to Live Loading)
1/360th of the span (due
to Live Loading)
Crane
Girders
(Vertical
deflection for 10 to 40 Tonnes
capacity)
N/A
1/80th of the span
Crane girders & Runaway
Beams (Vertical deflection up
to 10 Tonnes capacity)
N/A
1/600th of the span
Cantilevered Beams
1/200th of overhang
(due to Live Loading)
1/180th of overhang (due
to Live Loading)
Portal Frames (Horizontal)
1/250th of the height
1/200th of the height
Portal Frames (Vertical)
1/500th of the span
(due to Live Loading)
1/360th of the span (due
to Live Loading)
All Cranes (Horizontal)
N/A
1/500th of the span
2.3.5.2 Concrete
Concrete elements shall contain suitable materials to meet the requirements of both strength
and durability. Consideration to both the levels of chloride and sulphates shall always be
given when specifying cement type.
One of the following three typical land based exposure conditions needs to be stipulated as
the basis of the design criteria of concrete foundations (chemical analysis to be assessed
from the soil investigation report):
June 2004
Page 12
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
1.
Concrete placed in soils containing only SULPHATES, with no significant
risk of chloride induced corrosion, shall follow the recommendations of
BRE Digest 363 (Building Research Establishment) Table 1. In addition the
concrete surface shall be treated with two coats of ‘FOSROC Nitoproof
100’ bituminous paint or any other approved equivalent.
2.
Concrete placed in soils containing only CHLORIDES, with no significant
exposure to sulphates, shall use Ordinary Portland Cement to BS EN 197
or ASTM Type I (that is, with medium to high C3A content). In addition,
the concrete surface shall be protected in the form of tanking membrane
system or protective coating system as detailed below.
3.
Concrete placed in soils containing both CHLORIDES and SULPHATES
shall adopt the following criteria. When the chlorides are less than 0.05% in
the soil or ground water, the recommendation shall be as (1) above, that is,
for soils containing only sulphates. When the chlorides exceed 0.05% in the
soil or ground water, the recommendation shall be as (2) above, that is, for
soils containing only chlorides.
When the chlorides or sulphates or both (chlorides & Sulphates) in the soil or ground water,
are not in a significant level or totally free, the recommendation shall be ordinary port land
cement (OPC) to BS EN 197 or ASTM Type I. In addition, the concrete surface shall be
treated with two coats of ‘FOSROC Nitoproof 100’ bituminous paint or any other
approved equivalent.
The membrane system of tanking shall consist of primer, membrane, corner fillet,
reinforcing strip, protection board etc., Typical tanking details for concrete foundations
(above and below grade) are shown in Figure: 1. The tanking system product shall be
‘Schlegel’ or any other approved equivalent. The exposed surface shall be treated with two
coats of ‘FOSROC Dekguard S’ Anti-Chlorides and Carbonation coatings or any other
approved equivalent with a dft of 350 microns. This coating shall be required to protect the
above ground concrete from the atmospheric effects and windborne salts. For more details
of the exposure condition refer SP-1282 Specification for Reinforced Concrete –
‘Production & Construction Guidelines’.
The coating system for tanking shall be two coats of ‘FOSROC Nitocote PE135’ or any
other approved equivalent with a dft of 400 microns.
All membrane or coating system shall be strictly in accordance with the relevant
manufacturers instruction. Covers to all reinforcement including links shall never be less
than the value shown in Table 2.
Table 2: Minimum Concrete Cover to Reinforcement
Element
Absolute Minimum Nominal Cover
Internal
:
50mm
External
:
50mm
Below Ground
:
50mm
Building floor / roof slabs
:
25mm
Note: The above are minimum nominal covers and shall be increased if required by the
relevant design standard being used.
SP-1275
Page 13
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
For more information on recommended concrete cover to reinforcement related to external
exposure condition refer SP-1282 Specification for Reinforced Concrete – ‘Production &
Construction Guidelines’. The use of crushed ice and admixtures should be considered
when specifying concrete to ensure the production of good quality concrete.
Reinforced concrete should be general contains aggregates not exceeding 20mm and mass
concrete should in general contain aggregates not exceeding 40mm. The design and details
of concrete and concrete mixes shall be in accordance with SP-1282 Specification for
Reinforced Concrete – ‘Production & Construction Guidelines’.
All structural concrete shall be of Grade C35 (that is, having a characteristic strength of 35
N/mm2 at 28 day), unless specified otherwise. Mass concrete shall be used for general
filling as required. Blinding concrete shall be 50 mm thick. Both Blinding and Mass
Concrete shall have a characteristic strength of at least 10 N/mm2 at 28 days. All edges of
exposed concrete shall have a chamfer of approx. 25 mm.
Figure 1:
Typical Tanking Details for Concrete Foundations
(Above & Below Grade)
Note: 1. Product Brand Name: Schlegel for Membrane system and Fosroc for
Exposed surface coating.
2.
For Special foundations like pumps, compressors, GT etc.,
additional care shall be taken as per the consultant/vendor’s advise.
June 2004
Page 14
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Foundation bolts shall be in accordance with the latest revision of PDO Standard
Drawing STD-2-3950-001. Unless stated otherwise, the standard minimum lap
lengths of concrete reinforcement shall be as shown in Table 3.
Table 3: Minimum Reinforcement Lap Lengths
Minimum Lap Lengths (mm)
Size
Tension /
Compression
Size
Tension /
Compression
R6
300
T6
350
R8
350
T8
450
R10
400
T10
550
R12
500
T12
650
R16
650
T16
850
R20
800
T20
1050
R25
1000
T25
1300
R32
1250
T32
1650
R40
1600
T40
2050
Concrete reinforcement for Hot-Rolled Mild Steel and Hot-Rolled Deformed High-YieldStress Bars, shall be detailed as follows:
12
– R/T 10
– 3
-
200
SPACING OF BARS
BAR MARK
BAR TYPE AND SIZE
NUMBER OF BARS
REQUIRED
2.3.5.3 Block Work
Careful consideration should be given to the partial safety factors used for materials when
designing block work. Details of supervision and quality of blocks required to meet the
design assumptions should be stated on the drawings or in the specification.
Blockwork shall be designed to carry all the applied loading and combinations of loading,
giving due consideration to differential and thermal movements.
SP-1275
Page 15
June 2004
Version 1.0
2.3.6
Specification for Civil & Building Works – Design Criteria Manual
Engineering Drawings
Engineering drawings shall be prepared in accordance with PDO-ERD-00-06 Preparation &
Content of Engineering Drawings. A0 drawing shall not be used unless agreed in writing by
the Company.
Reinforcement shall be fully scheduled by the Consultant for working civil/structural
drawings in accordance with BS 8666 & BS EN ISO 4066, including bar bending schedules.
All welding symbols used shall comply with BS 449 Part 2C.
All drawings shall cross - refer to associated drawings.
All drawings shall provide details of required material grades.
Legend / Symbols are given below and for definitions and abbreviations see Appendix A.
Should other symbols or abbreviation be required (excepting welding symbols) a key shall
be provided on the drawing clearly describing their meaning.
Lettering and figures shall be distinct and uniform to ensure the production of good legible
prints. The style should be simple and unaffected. Capital letters should be used for all
titles and sub-titles. Lowercase letters should be used only for notes.
The size of all lettering shall be as follow:For A1 Drawings
:
3.0mm high minimum
For A2 & A3 Drawings
:
2.5 high minimum
All drawings should be to scale. The following scales should be used:
Civil/Structural
Site layout & simple GA’s:
:
1:200
General arrangement
:
1:100 or 1:50
Foundation Location Plans
:
1:100
Simple wall and slab details
:
1:50
Beam and column elevations
:
1:20
Beam and column sections
:
1:20 or 1:10
Note:
1.
Where larger scale details are desirable, the following should be used 1:5,
1:2 or FS.
2.
For projects with large foundations a scale of 1:25 may be used when scales
of 1:50 or 1:20 are clearly unsuitable.
All structural slab levels or finished floor levels should be indicated and related to a datum.
Levels shall be expressed in metres. All other dimensions shall be expressed in millimetres.
June 2004
Page 16
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Structural steelwork working drawings should show details of main connections. For minor
connections all moments, forces and shears shall be required to enable their design by the
contractor. The Consultants scope of work shall include the checking of shop drawings and
connection details designed by the contractor.
The Consultant shall produce a full set of As Built drawings, based on fully marked up
drawings by the contractor, which shall contain all civil, structural, mechanical, electrical
details etc. They shall clearly indicate the true location of all hidden and underground
services, structures and the like.
Complete copy of drawings shall be submitted in electronic form and loaded to PDO live
link system.
SP-1275
Page 17
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
The following legends / symbols shall be used where applicable:
Legend / Symbols
June 2004
Page 18
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Legend / Symbols (contd.)
SP-1275
Page 19
June 2004
Version 1.0
2.3.7
Specification for Civil & Building Works – Design Criteria Manual
Design Requirements for Specific Buildings
The specification gives minimum general requirements for the design and engineering of all
new building, however additional requirements for specific buildings are specified in the
following documents:
DEP 32.31.50.31 – Gen.
:
Analyser Houses
:
Typical Analyser Houses for Tropical Areas
Shell Standard Drawing S 17.002
:
Typical Analyser Houses for Non-Tropical
Areas
DEP 34.17.10.31 – Gen.
:
Laboratories
SP-1276
:
Specification for Standard Control Buildings –
Design Requirements & Standard Drawings
DEP 34.17.10.30 – Gen.
:
Reinforced
Proof)
SP-1283
:
Specification for Standard Sunshades –
Design Requirements & Standard Drawings
Shell Standard
17.001
2.3.8
Drawings
S
Control
buildings
(Explosive
Design Requirements for Pipe Supports
The design of Standard Pipe Supports is covered in a separate dedicated document: SP-1187
Specification for ‘Selection of Standard Pipe Supports’.
2.4
Design Loads
The design shall take into account all loading conditions foreseen as occurring during the
design life of the structure. If applicable, loading from future extensions shall be allowed
for. These shall include any alterations to wind loading effects due to the change in
structure size. Details of assumptions made in this respect shall be clearly stated in the
design concept section of the calculations.
Loadings that will occur during construction of the structure shall be designed for. Details
of any specific construction procedural requirements such as back propping; de-propping
etc. shall be clearly stated to the contractor in the drawings or specifications as necessary.
2.4.1
Dead Loads
The self-weight of all the building elements including services, specific plant etc. shall be
calculated and used in the design of the structure. For proprietary systems, equipment and
machines specific details of loading shall be obtained from the manufacturers and used in
the design. These details shall correspond to the items specified on the contract drawings
and in the specifications.
Where permanent partitions are shown in the plans their actual weights shall be included in
the dead load.
The weights of tanks and other receptacles and of their contents shall be considered as dead
loads. These loads need to be calculated for the cases when a tank or receptacle is full and
when empty.
June 2004
Page 20
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Dead loads should be calculated from the unit weights given in BS 648 or from actual
known weights of the materials used. For general building materials, however, the values
given in Appendix B may be used.
2.4.2
Live Loads
Live loads for buildings, and method of calculation, shall be in accordance with BS 6399
Part 1, however the live loads shown in Appendix C may be used as a guideline.
For structural steel platforms on Oil/Gas projects, the following live loads shall be used:
Access Walkways (not including operating floors)
:
250 kg/m2
Operating Floors (not next to heat exchangers)
:
500 kg/ m2
Special Cases (e.g. Floors located at the draw end of a
shell tube heat exchanger).
:
750 kg/ m2
Under desert conditions roof with a pitch of less than 50 shall be designed for sand loading
and shall be a minimum of 1 kN/m2.
For structural calculations, local codes or regulations, and actual loading situations shall be
adhered to if more stringent than the values obtained from Appendix C.
Where applicable, the weight of vehicles shall be included as live loading and shall be
applied to produce the most critical design cases.
2.4.3
Wind Loading
Wind load calculations shall comply with the requirements of BS 6399-2 Loading for
Buildings – ‘Code of Practice for Wind Loads’ and DEP 34.00.01.30-GEN.
Figure 2 specifies highest Mean Hourly Wind Speed, V10 (m/s), at a height of 10 m, which
shall be accounted for in the design.
The Design Wind Speed at any height z above the ground, Vz (m/s), is derived from the
formula below:
Vz = F x V10 x (z/10)1/y x S3 (m/s)
Where, Vz = The Design Wind Speed at height z.
V10 = The Mean Hourly Wind Speed
F = Gust Duration Factor Z = Height above grade
1/y = Locality Factor
S3 = Structure Category Factor
(S1 and S2 are included in the above).
Refer Table 4 for the values of F & 1/y and Table 5 for the value of S3.
SP-1275
Page 21
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Figure: 2
MEAN HOURLY WIND SPEED CHART
June 2004
Page 22
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 4: Values Of Gust Duration Factor & Locality Factor
Categor
y
F
1/y
Topography
3 sec gust
10 sec gust
1
Extreme exposure. Large
expanses of open water,
grassland, desert, etc.
1.5
1.3
1/14
2
Open country with low
obstructions, trees, 2storey buildings, etc.
1.7
1.4
1/11
3
Built-up areas and areas
with high obstructions.
Towns, refineries, etc.
2.0
1.6
1/8
Although 3-second gust speeds, are sometimes quoted and certainly of great importance
when dealing with wind forces on structures, the above formula takes this into account.
It is intrinsically incorrect to stipulate 3-second gust duration values, as these depend on
location, obstructions and the influence of neighbouring structures (which could cause
eddies and complex flow resulting in much higher gust velocities), as well as height above
the ground. Therefore only use highest mean hourly wind speeds at 10 metres above the
ground.
The values of S3 are shown in Table 5 and shall be used for the various category of structure
as described in section 2.5.
Table 5: Values Of S3 For Wind Loading
Structure Type
S3
Permanent
1.00
Semi Permanent
0.83
Temporary
0.77
Note: The values given above shall not be applicable for Telecom Type Towers and for any
special structures for a particular project and shall be calculated from BS 6399.
2.4.4
Design Loading For Crane Gantry Girders
The following applies only to single crane operation and to simple forms of crane gantry
construction. Loads for heavy crane, high-speed operation or multiple cranes on a single
gantry have to be specially calculated.
For crane gantry girders, the following allowances can be used to cover all forces set up by
vibration, shock from slipping of slings, kinetic action of acceleration and retardation and
impact of wheel loads:
SP-1275
Page 23
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
a. For loads acting vertically, the maximum static wheel loads shall be increased by the
following percentages.
For an electric overhead cranes:
25%
For a hand operated cranes:
10%
b. The horizontal force acting transverse top the rails, the following percentages of the
combined weight of the crab and the load lifted:
For an electric overhead crane:
10%
For a hand operated crane:
5%
c. The horizontal forces acting along the rails shall be taken as a percentage of the static
wheel loads, which can occur on the rails, as follows:
For overhead cranes, either electric or hand operated: 5%
The forces specified in either (b) or (c) above, may be considered as acting at the rail level
and being appropriately transmitted to the supporting system.
Either of the horizontal forces in (b) or (c) above may act at the same time as the vertical
load on gantry girders and their vertical supports.
The design loadings for Overhead Travelling Cranes and outdoor gantries shall be
determined in accordance with BS 2573.
2.4.5
Dynamic Loads
Where loads arising from machinery, and other plant producing dynamic effects, are
supported by or communicated to a structure, allowance shall be made for these dynamic
effects by increasing the load by an adequate percentage.
Foundations, which directly support vibrating equipment such that the effects need to be
taken account of in the calculations, shall be designed in accordance with BS CP 2012. In
general it is advisable to provide anti-vibration pads.
2.4.6
Load Combinations
Load combinations shall be such that both maximum and minimum load cases are checked if
applicable to investigate not only design loadings on particular elements but also stability,
uplift and overturning conditions. Load combinations shall also be in accordance with the
requirements of the particular design code of practice or standard.
2.5
Climatic Aspects of Buildings
Attention shall be paid to the prevailing climatic conditions in various seasons (using
records of local climatic design data), such as air temperature, temperature differences,
saline atmosphere, sand and dust storms, possible sand infiltration of buildings, humidity,
solar influence, wind, micro climatic variations, etc., to arrive at a satisfactory design.
Buildings shall be designed and constructed so that, within operational and physical
constraints, they are able to maintain the necessary internal comfort condition with the
minimum of capital and operations costs over the whole range of external prevailing
conditions.
June 2004
Page 24
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.5.1
Version 1.0
Climatic Design Criteria
Outdoor design conditions should be based on the relevant meteorological data for each
project. For further detail refer section 2.16.
2.5.2
Siting & Orientation
1
Residential and
Housing Areas
If at all possible, camps & housing plots etc., shall be sited up
wind of industrial areas, so that prevailing winds drive smoke &
fumes away from accommodation/residential areas. They shall
also be sited a reasonable distance away from mosques and
recreational facilities.
2
Industrial Areas
As mentioned in section 1 if at all possible, industrial areas shall
be sited down wind of accommodation/residential areas but up
wind of flare areas and burn pits.
3
Individual
Accommodation
Units or Houses
As opposed to Western European standard, orientation of houses
shall, if at all possible, be such as to avoid excessive sun and wind
exposure. Advantage shall be taken where possible to make best
use of scenic outlook and privacy. Living rooms and bedrooms
should face the garden, while kitchens and ancillary rooms etc.,
should face the street.
4
Mosques
and
Prayer Shelters
All mosques and prayer shelters shall be orientated towards
Mecca. Once the building foundation trenches have been
excavated, final approval by the local religious authority shall be
received before further work commences. Mosques shall be
located away from any sources of noise.
5
Outdoor Sports
Facilities
Tennis courts, volley ball courts (and preferably football pitches)
shall be orientated in the N-S direction because of sun light
problems at dawn and dusk. Care need to be taken in siting these
facilities in relation to problems of night time glare from
flares/burnpits. Shelter is needed from the wind, especially for
badminton or tennis courts. Sports facilities shall not be located
close to areas from which there is high level of noise, for example,
turbines, or close to likely source of fumes/smoke, for example,
fire training ground.
6
Open
Cinemas
Open Air Cinemas are usually only used at night. Therefore if
such a facility has been specified by the Company (no longer
considered a standard facility), their location and orientation shall
depend on problems associated with glare from flares etc., and
noise to accommodation, mosques, etc., or from adjacent plant and
equipment. Prevailing wind problems with fumes, dust, etc., shall
also be taken into account, not forgetting the effects of the glare
from the sun (least important).
7
Power Stations
Air
Power Stations are generally very noisy and therefore their
location shall be such as to cause the least amount of discomfort to
occupants of camps, building, potential building plots, etc., still
ensuring cost effectiveness of cable lengths, O/H lines, fuel lines
etc. Gas Turbines have the added hazard of gas explosions (as well
as possible H2S problems). Noise levels are defined in the section
3.0 of SP 1231 and section 4.6 of DEP 34.17.00.32.
(Contd.)
SP-1275
Page 25
June 2004
Version 1.0
2.5.2
Specification for Civil & Building Works – Design Criteria Manual
Siting & Orientation (contd.)
8
Clinics
Clinics shall be sited such that easy access to both Residential
and Industrial Areas is achieved. Noise is considered the
major hazard for clinics even though hazards due to
fumes/smoke/flare glare, etc., shall also be taken into account.
9
Schools
Schools generally have a certain amount of noise associated
with them, and therefore should not be too close to housing.
A more important factor is the hazard of fast traffic. Speed
bumps shall be located on both sides of the School, with
appropriate traffic warning signs, etc., to control traffic
speeds. All hazard facilities, such as electrical substations,
sewage pumping pits, etc., shall be securely fenced off with
suitable locks.
10
Offices
Offices should have an E-W main axis, with the windows
facing either north or south, as the penetrating morning and
evening sun is undesirable. The sun can be kept out by sun
blinds, window U/V film, or roof overhang. Siting is
dependant on client needs but care must be taken against
noise and fume/smoke hazards. Space is needed directly
outside the office space for off loading supplies and adequate
car parks. Natural day light is very desirable but not
necessarily essential. Artificial lighting, to correct levels, may
be used if no other option is available.
11
Workshops
Workshop orientation is dependent on access to and from the
workshop to the access road. Siting of workshops is
dependent on client needs, services availability, noise factor,
hazardous factors, wind blown dust.
12
Warehouses
& Stores
13
Hydrocarbon
Laboratories
Warehouses are normally located at the entrance of the supply
lay down area and orientated for easy access and removal of
material by fork lift trucks, transport trucks, etc. Materials
that need sun shading shall be orientated to obtain maximum
effect of side cladding while still attaining high efficiency of
access. In general this results in the main axis of the building
being orientated in the E-W direction, with access from the
North Wind blown dust also needs to be carefully taken into
account.
Hydrocarbon Laboratories shall be located well away from
points of ignition and other such hazards (see IP Part 15
‘Model Code of Safe Practice’). They shall be free standing
with their own supply of uncontaminated air supply.
Orientation shall be such as to avoid direct sun light from
entering the laboratory, that is, the windows shall have a
northerly aspect.
14
Airstrips &
Air Terminals
When siting an Airstrip in the Interior the following points
shall be considered:
1. Air Lane activity in the area including for military flying.
2. Type of development in the surrounding area (camps,
garbage dumps, sewage lagoons, etc.). All these attract birds,
which are a hazard to incoming aircraft.
(Contd.)
June 2004
Page 26
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.5.2
Version 1.0
Siting & Orientation (contd.)
14
Airstrips &
(contd.) Air Terminals
(contd.)
3. Communication (all types) problems and availability,
radio interference, etc.
4. Utilities available – aviation fuel, water, electricity, etc.
5. Surrounding obstructions: telecom towers, sand dunes,
etc.
6. Meteorological conditions throughout the year.
7. Likely use by non-PDO personnel
Other factors to take into account are the expected lifetime of
the airstrip, type of planes that will be used, the effect and
condition of both the take off and approach zones, and
access to camp site or oil installation. The orientation of the
airstrip shall be dependent on prevailing winds and the
surrounding obstructions within the take off and approach
zones. The terminal building shall have the main axis
parallel to the airstrip. For the airstrips safety refer the PDO
Safety Reference Document M.3.9 or the appropriate
standards as stated CP-122 Code of Practice for the Health,
Safety and Environment Protection.
15
Explosives
Stores
Explosives stores shall be located a minimum of 1000 m
from roads and public buildings, which does not include the
access road to the store. These stores shall also be located a
minimum of 2000 m from vulnerable installations such as
pipe lines, production facilities, power lines and telecom
facilities. The compound itself shall be double security
fenced 6 m apart, with an outer 1 m deep, 2 m wide security
anti vehicle ditch. The associated guard house shall be
located along the approach access road, 400 m from the
Explosives store security fencing. All explosives stores shall
conform to the Royal Oman Police regulations.
16
Fuel Stations
Fuel Stations are considered as a hazardous area, especially
during fuel delivery/despatch time, and therefore its location
shall be dependent on minimum distances from a point of
ignition to fuel vents. All fuel stations shall conform to the
‘Model Code of Safe Practice’ IP Part 15.
17
Fire Training
Areas
The Fire Training Area is a source of ignition and a source of
smoke (and possible H2S). These areas shall be located well
away from Residential and Recreational facilities. They
shall also be located well away from any installations, which
have inflammable or hydrocarbon compounds such as oil/gas
installations, fuel stations, explosive stores, laboratories,
warehouses/stores, etc.
Building facilities, other than
buildings within the compound itself, shall not be less than
150 m away from a point of ignition in the Fire Training
Area. Prevailing winds and hence the effects of smoke must
be taken into consideration when locating such an area.
(Contd.)
SP-1275
Page 27
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.5.2 Siting & Orientation (contd.)
June 2004
18
STP’s
(Sewage
Treatment
Plants) and
Evaporation
Ponds
Both Sewage Treatment Plants (and associated ponds) and
Dedicated Evaporation Ponds are sources of smell and sanitary
pollution. All residential facilities and schools shall not be
located within 100 m of a STP or evaporation ponds. Smell/bad
odours are mainly caused by anaerobic (septic) conditions even
though excessive algae blooms do contribute to the smell.
Prevailing wind is a major factor when siting STP's and
evaporation ponds so that all manned locations shall be located
upward of such facilities. Wind is a major element in the
efficient running of an evaporation pond. Fencing to ponds, to
stop camels entering the area, shall be located away from the
pond itself to avoid effecting the wind fetch of the pond.
Location is also decided by ground water contamination,
closeness to potential flooding of wadi’s, or problems of
percolation/leakage under the bunds into manned areas (that is,
ponds to be located down hill of manned facilities).
19
Isotope
Stores
Location of Isotope Store are defined in the Safety Reference
document section M.2.1 or CP-122 Code of Practice for ‘Health,
Safety and Environment Protection’ and other documents
referenced therein.
20
Telecom
Installations
Telecom installations are affected by heavy atmospheric
disturbance and high voltage. Care must be taken to ensure that
high voltage cables or overhead lines are located away from
such installations. Commonly associated with Telecom facilities
are high towers which affect take off and approach zones of
airstrips. Microwave towers need to be free of any other outside
obstructions.
21
Transportable
Units
(Portacabins)
The main problem with Transportable Units is their risk of fire.
The minimum distance between Units shall be 5 m. Units shall
be considered as a point of ignition when dealing with facilities
such as fuel stations, fuel tanks, etc. For access reasons, a
minimum space of 7 m shall be maintained between Units and a
fence/boundary wall.
22
R O Plants
These should, when possible, be located close to the supply and
disposal wells, preferably between the wells and the user
facility.
23
Garbage
Dumps
Garbage dumps should be sited down wind from the camp and
in particular away from any aircraft landing strip or helicopter
pad as these attract birds, etc.
24
Scrap Heaps
Scrap heaps shall be located such as to minimise environmental
impact and shall be regularly backfilled as dumping continues.
Where removable scrap is stored this shall be within screened
areas.
25
Military
Installations
Following is applicable for Military installations.
1) No construction allowed within 20m from outside fence
2) No more than one storey building is allowed within 200m
3) No more than two storey building is allowed within 300m
4) No more than three storey building is allowed within 400m
5) No construction allowed between the main road and outside
fence
6) ROP approval is required before constructing within 400m
from the outside fence.
(Contd.)
Page 28
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.5.2
Version 1.0
Siting & Orientation (contd.)
2.6
25
Car Parks
In the design of car parks particular attention shall be drawn to
save ingress to and egress from the approach roads. In
congested areas right angle parking should be used to maximise
space usage and overall cost. Elsewhere 450 parking is
considered desirable. Whilst it is mandatory in the Interior to
build car parks suitable for Reverse Parking, for the Coast uses
normal drive in parking (see Figure 5 in this document).
26
Shops
Shops shall be provided with a storeroom, toilet and wash hand
basin. The store shall be minimum 15% of the shop floor area.
Means of Escape and Fire Protection
The planning of all buildings shall be in accordance with the BS 5588 Part 1 to 5 Fire
Precautions in the Design & Construction of Buildings and shall comply with the
requirements of Royal Oman Police regulations.
Building layouts and proposed fire protection systems shall be subject to Company
approval.
The layouts shall show safe means of escape routes, protected corridors, travelling distances
to the protected corridors, protected shafts and means of escape exists. A statement shall be
provided specifying the proposed air-conditioning supply and return air systems, and fire
protection systems for the project.
The location of all hand held fire-fighting equipment shall be agreed with the Company.
All matters relating to Fire Detection, Protection and Alarms is covered under Section
2.17.7, 2.19.4 and 2.20 of this document.
2.7
Minimum Building Requirements
2.7.1
PDO Buildings
2.7.1.1 PDO Office Buildings
These buildings shall be designed with an overall building width of 13 m. One of the centre
corridor walls shall coincide with the centre of the building giving offices of internal
dimensions of:
Office 1
4.15 m
x (3.38) m = 14 m2
Office 2
6.25 m
x (3.38) m = 21 m2
Corridor width
1.80 m
4 Walls of 200 mm each
0.80 m
Hence
13.00 m
(Width of building)
Provision shall be made for installation of partition walls at approximately 1.69 m intervals
so that following rooms sizes can be formed: 7 m2, 10.5 m2, 14 m2, 21 m2, 31.5 m2 and 42
m2.
SP-1275
Page 29
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.7.1.2 PDO Sleeping Accommodation
All rooms in the PDO sleeping accommodation blocks shall have a bedroom, attached
bath/toilet and storage facilities. Standard room sizes are given in the Table 6. The
accommodation unit allocation shall be one person/room for senior staffs and two
persons/room for junior staffs.
Table 6: Areas of Sleeping Accommodation
Staff (Grade)
Item
SS
JS
Bedroom m2
20.80
20.80
Shower/WC m2
3.20
3.20
Storage m3
2.00
2.00
Total Area m2
24.00
24.00
Notes
En suite
shower/wc
En suite
shower/wc
2.7.1.3 PDO Ablution Requirements
In general toilets shall have minimum internal dimensions of 1.0 m x 1.6 m for both SS and
JS. This may be reduced to 0.9 m x 1.3 m in offices.
Showers shall have minimum dimensions of 1.0 m x 1.8 m, divided into a wet area and a dry
area by a simple curtain, the latter area having a seat.
2.7.2
Contractors Buildings
Contractor’s temporary site offices shall have areas as stated in section 2.7.1.1 or to suit the
requirements of a particular contract.
Accommodation for contractors shall be provided in the PAC (Permanent Accommodation
for Contractors) and its facilities are similar like PDO facilities. If there is no PAC
accommodation the Contractors can have their own camp and to provide the same facilities
to their staffs. The accommodation unit allocation in the PAC or in the Contractors camp
shall be one person/room for senior staffs and two persons/room for junior staffs and all
other category staffs.
Three persons sharing per room shall be allowed for JE and other staff categories, if the
bedroom size is more than 21 m2 or as stated in Table 6.
2.7.2.1 Contractors SS Accommodation & Ablution Facilities
Contractors SS accommodation shall have a sleeping room with an attached bath/toilet
facilities. The room sizes shall not be less than 13 m2.in case of portable accommodation
units otherwise the size shall be the same as given in Table 6.
The following sanitary ware fittings shall be provided for each bath /toilet unit. Refer Table
7.
June 2004
Page 30
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table7: Contractors SS Ablution Facilities
Sanitary Fittings
Item
Staff
2a
SS
√
√
√
2b
SS
√
√
√
2c
SS
√
√
√
WC
(Western)
1.6 m2
WC
(Eastern) Urinals
1.4 m2
Handwash
Basins
Shower
Units 1.8
m2
2.7.2.2 Contractors JS/JE Accommodation & Ablution Facilities
Contractors JS/JE and all other staff’s accommodation units shall have a sleeping room with
attached bath/toilet facilities. The room sizes shall not be less than 13 m2.in case of portable
accommodation units otherwise the size shall be the same as given in Table 6. The
following minimum number of sanitary ware fittings shall be provided for each bath / toilet
unit. Refer Table 8.
Table8: Contractors JE Ablution Facilities
Sanitary Fittings
Item
Staff
WC
(Western)
1.6 m2
WC
(Eastern)
1.4 m2
Urinals
Handwash
Basins
Shower
Units
1.8 m2
3a
JS
√
√
√
3b
JE
√
√
√
3c
JE
√
√
3d
Others
√
√
3e
Others
√
√
√
√
2.7.2.3 Contractors Kitchen and Messing Facilities
In general, the Kitchen and Associated Facilities should be constructed in block work, and
the use of porta-cabin type kitchens shall be discouraged. The Kitchen and Associated
Facilities for Contractors have been sized using the following design criteria, based on
international norms:
Individual space requirements in the kitchen for the various functions are shown in the
Figure 3.
SP-1275
Page 31
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Figure 3: Kitchen Facilities Dimension Chart
M2
60
Preparation
40
20
0 0
200
400
600
800
Meals
3.a. Preparation
M2
80
60
Service
40
20
0 0
200
400
600
800
Meals
3.b. Service
M2
60
40
Staff Facilities
20
0 0
200
600
800
3.c. Staff Facilities
Meals
June 2004
400
Page 32
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Figure 3: Kitchen Facilities Dimension Chart (contd.)
M2
60
Cooking
40
20
0 0
200
400
600
800
600
800
Meals
3.d. Cooking
M2
60
40
Wash-Up
20
0 0
200
400
Meals
3.e. Wash-Up
M2
60
Storage (total)
40
20
0 0
200
400
600
800
Meals
3.f. Storage (total)
SP-1275
Page 33
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 9: Contractor Kitchen Facilities Dimensions/Sizes
Total Manpower of Contractor
Item
June 2004
Description
0 to 10
People
10 to 25
People
25 to 50
People
50 to 100
People
100 to 200
People
200 to 400
People
4
Kitchen Area
4a
Preparation
N/A
10 m2
10 m2
11 m2
15 m2
23 m2
4b
Service
N/A
18 m2
18 m2
19 m2
22 m2
36 m2
4c
Staff Facilities
N/A
10 m2
10 m2
13 m2
15 m2
19 m2
4d
Cooking
N/A
19 m2
19 m2
20 m2
23 m2
39 m2
4e
Wash Up
N/A
8 m2
8 m2
10 m2
13 m2
18 m2
4f
Storage (Total)
N/A
25 m2
25 m2
27 m2
32 m2
35 m2
4
Total Kitchen Area JS and SS
N/A
90 m2
90 m2
100 m2
120 m2
170 m2
Page 34
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 10: Contractors Dining Room Facilities Dimensions/Sizes
Total Manpower of Contractors
Item
SP-1275
Description
0 to 10 People
10 to 25
People
25 to 50
People
50 to 100
People
100 to 200
People
200 to 400
People
Motel
Accommodation
SS + JS Eat
Together
SS + JS Eat
Together
SS + JS Eat
Separately
SS + JS Eat
Separately
SS + JS Shift &
Eat Separately
5a
Condition of Dining/ Messing Facilities
5b
Assumed Average Population
N/A
20
40
80
170
180 - 2 No
Shifts
5c
Assumed Split Between JS and SS
N/A
1 to 4
1 to 5
1 to 6
1 to 7
1 to 8
5d
Assumed Number of Meals/sitting
N/A
20
40
80
170
360 - 2 No
Shifts
5e
Dining Space factor for JS
N/A
1.6per’s/m2
1.5per’s/m2
1.4per’s/m2
1.4 persons/m2
07 persons/m2
5f
Dining Space factor for SS
N/A
N/A
N/A
1.8per’s/m2
1.7 persons/m2
08 persons/m2
JS Dining Area Space Requirement in m2
N/A
32m2
60m2
93m2
203m2
220m2
JS Servery and Extra Circulation Space
N/A
18m2
30m2
47m2
107m2
110m2
Page 35
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 10: Contractor Dining Room Facilities dimensions/Sizes (cont’d…)
Total Manpower of Contractors
Item
5g
5h
5i
June 2004
Description
0 to 10
People
10 to 25
People
25 to 50
People
50 to 100
People
100 to 200
People
200 to 400
People
Total Dining Space Requirement for JS
N/A
50m2
90m2
140m2
310m2
330m2
Dining Area Space Requirement for SS
N/A
N/A
N/A
25m2
43m2
36m2
SS Servery and Extra Circulation Space
N/A
N/A
N/A
15m2
27m2
24m2
Total Dining Space Requirement for
SS
N/A
N/A
N/A
40m2
70m2
60m2
Dining Area Space Requirement in m2 for
both JS & SS
N/A
32m2
60m2
118m2
246m2
256m2
Servery and Extra Circulation Space For
JS & SS
N/A
18m2
30m2
62m2
134m2
134m2
Total JS & SS Dining Area
Requirement
N/A
50m2
90m2
180m2
380m2
390m2
Page 36
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 11: Other Kitchen/ Messing Related Facilities Dimensions/ Sizes
Total Manpower of Contractors
Item
Description
0 to 10 People
10 to 25 People
25 to 50 People
50 to 100 People
100 to 200 People
200 to 400 People
6
Other Facilities
6a
Bakery
N/A
16m2
16m2
20m2
30m2
40m2
6b
Laundry
N/A
35m2
35m2
55m2
70m2
110m2
6c
Catering Offices
N/A
14m2
14m2
20m2
20m2
30m2
6d
SS Toilet / Wash
N/A
10 m2
15 m2
15 m2
24 m2
24 m2
6e
JS Toilet / Wash
N/A
25 m2
30 m2
30 m2
36 m2
36 m2
6
Total Other Facilities
N/A
100m2
110m2
140m2
180m2
240m2
Table 12: Overall Area of Contractor’s Kitchen/ Messing Facilities
Total Manpower of Contractors
Item
7
SP-1275
Description
Overall Area of Kitchen/
Messing
Page 37
0 to 10 People
10 to 25 People
25 to 50 People
50 to 100 People
100 to 200 People
200 to 400 People
N/A
240m2
290m2
420m2
680m2
800m2
June 2004
Version 1.0
2.8
Specification for Civil & Building Works – Design Criteria Manual
Building Elements and Finishes
Building elements shall be designed and detailed to comply with fire regulations as detailed
in the United Kingdom Building Regulations 1985 produced by the Department of the
Environment and the Welsh Office. Designs and details shall also comply with the
requirements of the local fire authorities. Refer Appendix C for the relative values of the
different Building Elements and Finishes of PDO buildings.
2.8.1
Walls
All wall designs and details shall take into consideration the following:
-
Structural Loading Requirements
-
Thermal Insulation Requirements
-
Noise Insulation Requirements
-
Water/Moisture Repelling Requirements
-
Thermal Movement/Structural Freedom
-
Acoustic Reverberation Requirements
-
Economic Aspects
-
Finishing Requirements
-
Animal, Vermin, Insect Penetration Requirements
-
Dust Penetration Requirements
In addition external walls shall be designed and detailed to resist moisture penetration, to
prevent the occurrence of condensation. Damp proofing is required, as in temperate
climates (regarding the omission of damp proof courses, refer section 2.8.1.5). Termite
barriers are essential in the construction of walls.
Internal walls for wash rooms and other wet rooms shall be designed and detailed to be
moisture resistant and shall contain a damp proof course. Walls for control buildings shall
be solid with no cavities to prevent the possible build up of gases and therefore hollow
blocks shall not be used in these instances. Holes for cable entries in these buildings shall
be sealed with polyurethane foam after cables have been installed.
2.8.1.1 Structural Loading
All load bearing block work walls shall have a minimum compressive strength of 10 N/mm2.
All non - load bearing block work walls shall have a minimum compressive strength of 3.5
N/mm2.
Mortar shall as a minimum comply with the requirements of designation II as described in
BS 5628.
All openings for windows, doors, etc. in hollow block work shall be framed on all sides by
providing a minimum of one T12 reinforcing bar placed centrally in the block hollow
adjacent to the opening. The hollow shall subsequently be filled with concrete as the block
work progresses. The concrete shall be a minimum of grade 20. (Characteristic strength of
concrete shall be 20 N/mm2 @ 28 days with 10 mm aggregate).
June 2004
Page 38
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
The framing bar shall run from the floor below the opening to the ceiling above and where
applicable shall pass through and be cast into the lintels above the opening. It shall also,
where applicable, be cast into the slab below and soffit above the block panel under
consideration.
Walls shall be designed to withstand all vertical, horizontal and longitudinal loads, including
wind and stability loading, as necessary. Due consideration shall be given to the eccentricity
of loading in the design.
2.8.1.2 Thermal Requirements
Light colour, heat reflecting, thermal qualities and low maintenance shall be the main
considerations in selecting the external finish. ‘U’ values should not exceed 0.6 W/m2 0C for
external walls. Cavity walls with insulation shall be considered in all external wall designs
for air conditioned buildings to help conserve energy. See also section 2.8.1.5.
2.8.1.3 Noise Requirements
All walls shall be suitably designed and constructed to ensure compliance with the room
noise ratings specified in Appendix K.
2.8.1.4 Thermal Movements / Structural Freedom
Vertical movement joints in walls shall be placed at intervals not exceeding the following:
Table 13: Movement Joints
Wall Type
Max. Joint spacing
Concrete framed buildings and structures
30 m
Concrete walls
30 m
Fired clay brick walls
12 m
Calcium silicate bricks
8m
Concrete brick walls
8m
Concrete block walls
6m
Parapet walls
5m
Horizontal movements joints may be required where block work/brickwork is built in a
frame to allow the frame to move independently.
All movement joints in buildings shall be sealed to prevent the ingress of water.
2.8.1.5 Economic Aspects
Consideration shall be given to exceeding the ‘U’ value of 0.6 W/m2 °C stipulated in section
2.8.1.2 where the environmental condition within the space is not critical.
Non-fair faced un-rendered block work may be used in areas of non-aesthetic importance.
Where wall cladding is used, un-plastered non-fair faced blocks shall be used on faces
covered by the cladding.
SP-1275
Page 39
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
External walls constructed on concrete ground beams or slabs which are a minimum of 150
mm above surrounding ground level shall not require a horizontal damp proof cover.
2.8.1.6 Wall Finishes
Wall finishes as detailed in Appendix D of this document shall be used.
2.8.2
Floors
2.8.2.1 External Floors & Hard standings
Where reinforced concrete floors are required externally they should be constructed in bays
not greater than 4.5 m in width, which shall separated by longitudinal construction joints.
Every other longitudinal construction joint shall be formed to allow shrinkage to occur.
Each bay shall be divided into lengths not exceeding 5 m by transverse shrinkage control
joints. Expansion joints shall be provided in both directions every 30 m.
Where mass concrete hard standings are used they shall be formed in bays not exceeding 5
m x 5 m, which shall be separated by isolation joints.
All external floors and hard standings shall be laid with adequate falls (minimum 1:100)
such that, allowing for normal tolerances, there is no possibility of water ponding and to
ensure quick and effective drainage.
Consideration shall be given, particularly with temporary or semi permanent floor to laying
the concrete directly on the ground.
2.8.2.2 Internal Floors
All exposed concrete floors shall be treated with an anti-dust compound.
All exposed concrete floors subject to oil/acid spillage shall be treated with a suitable epoxy
based flooring cover.
In workshops, due consideration shall be given to fork lift loading, racking and machine
foundations.
All vibrating and large machine foundations shall be isolated from the ground floor slab by
way of an isolation joint.
For the installation of computers and other instrument or electrical equipment with cable
connecting at the bottom of the equipment cavity floors shall be provided. These shall
comprise a reinforced concrete lower floor and a removable panel upper floor of 600 x 600
module supported on pedestals. The pedestals shall be fixed to the concrete floor in such a
manner as to form a firm bedding and shall be in accordance with the manufacturers
instructions. They shall be adjustable in height and the adjustable section shall have
automatic positive locking. Ensure that the pedestals and the frames, supporting either the
instrument or electrical cabinets, are able to provide independent stability to the structure at
all times. Each floor panel shall be capable of supporting, as a minimum, a concentrated
load of 4450 N, applied on an area of 650 mm2 at any point. The floor shall also be capable
of carrying, as a minimum, 15 kN/m2 with a maximum deflection of 1 mm. The reinforced
concrete floor below the cavity shall be painted with an epoxy paint to prevent formation of
dust.
All pre-cast suspended floors shall be suitably tied to the structure to provide robust and
stable construction.
June 2004
Page 40
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.8.2.3 Floor Finishes
Floor finishes as detailed in Appendix E of this document shall be used.
To all wet areas such as toilets the floor and 200 mm up surrounding walls shall be painted
with two coats of bitumen and sharp sand splattered for key.
At change of finishes line, at all doorways and in bays not exceeding 15 m2 brass dividing
strips finished flush to the surface shall be provided.
2.8.3
Skirting
Skirting as detailed in Appendix F of this document shall be used.
2.8.4
Ceilings
Ceiling finishes as detailed in Appendix G of this document shall be used.
2.8.5
Doors
Doors as detailed in Appendix H of this document shall be used.
All doors shall be either solid teak framed or teak faced solid core flush doors. Where doors
are fire rated their composition shall change accordingly.
2.8.6
Windows
Refer Appendix I for Window Types.
Contractors shall verify the final dimensions at site before making shop drawings. Approval
to shop drawings shall be given prior to commencement of manufacture. All windows to be
silver anodised aluminium with 6 mm thick glazing.
Windows shall be fixed into a timber frame. Glazing to floor level windows shall be armour
plated glass. To bathrooms and toilets shall be rough - cast narrow receded.
2.8.7
Ironmongery
Subject to the building type the quality of fittings to be used shall be determined by the
Company Representative. Generally ironmongery shall be in packs. Ironmongeries pack
and typical requirements are detailed in Appendix J of this document.
2.9
Staircases and Platforms
All stairs shall be designed and located to meet the requirements of the Royal Oman Police
for means of escape in the case of fire.
All doors shall open in the direction of the escape route and be positioned so as not to block
any stairway.
For steel stairs the minimum width of stairway, walkway & platforms shall not be less than
750mm. Stair treads shall not be made GRP or aluminium and shall be hot-dip galvanised
steel. On platforms, the distance to a stair or ladder shall not be more than 25m.
The Concrete platforms in front of equipment doors shall be calculated to be able to bear the
equipment that will be transported through the doors.
SP-1275
Page 41
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
No stairway shall exceed sixteen risers in any one flight, if more are necessary a landing
shall be provided.
2.9.1
Flow Capacities of Staircases
For fire safety purposes (fire escapes) a flow capacity of 1.3 persons per second per metre
width shall be used. This is greater than normal use flow capacity which, shall be
determined as shown in Table 14 below:
Table 14: Normal Use Staircase Flow Capacities
Free Flow Mean Plan Density <0.6
persons/m2
Speed along
Slope (m/s)
Limit of stair capacity
with free flow
(persons/min/m/width)
0.9
2.9.2
27
Full Design Capacity 1-way Plan
Density 2 persons/m2
Speed along
Slope (m/s)
0.6
Stair capacity
(persons/min/m/width)
60
Riser / Going Relationship
The following formula shall be used to determine the suitable relationship of riser to going
for normal staircases:
2 R + G = 550 TO 700 mm,
Where: R= Riser & G = Going
Refer Table 15 for the stairs dimensions, headroom clearances, travelling distances and
other requirements.
June 2004
Page 42
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 15: Dimensions For Staircases
Office Type
Building
Dimensions in mm
Domestic
Serving for 1
Dwelling
Domestic
Serving >1
Dwellings
Industrial
Office/
Domestic Fire
Escape
Industrial
Fire Escape
(max.)
180
210
180
210
180
210
(min.)
75
75
75
75
75
75
(max.)
310
280
310
280
310
280
(min.)
280
240
280
240
280
240
(min.)
2100
2100
2100
2100
2100
2100
Minimum clearance (*) perpendicular
to flight.
1650
1650
1650
1650
1650
1650
Height of handrail above front of treads
900
900
900
900
900
900
Height of handrail above landing
1100
1100
1100
1100
1100
1100
Riser
Going
Headroom
(Contd.)
SP-1275
Page 43
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 15: Dimensions For Staircases (contd.)
Office Type
Building
Domestic
Serving for 1
Dwelling
Max. number of risers in flight
12
16
12
Length of landings (+)
900
900
1100
Dimensions in mm
Domestic
Serving >1
Dwellings
Industrial
Fire Escape
16
12
16
900
1100
900
Maximum travel distance along
fire escape route (Escape
possible in one direction only)
30 m
30 m
30 m
30 m
30 m
30 m
Maximum travel distance along
fire escape route (Escape
possible in more than one
direction)
46 m
46 m
46 m
46 m
46 m
46 m
*
Minimum clearance above flights between:
a. Line drawn through nosings; and,
b. Ceiling at edge of stairwell
+
June 2004
Office/
Domestic
Fire Escape
Industrial
Length of landing shall not be less than width of staircase relevant to location of stairs.
Page 44
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.9.3
Version 1.0
Fire Rating for Structures
The minimum fire rating values of the building for various purposes and types are indicated in the Table 16, however these shall meet the requirements of the
latest Royal Oman Police regulations.
Table 16: Guide To Fire Ratings For Various Structures
Minimum Period (h) for Elements of
Structure
Maximum Dimensions
Purpose, Group &Type
of Building
Office – Single storey
building or separated part
(no basement)
Building or separated part
which is not single storey
Shop – Single storey
building or separated part
(no basement)
Height (m) of Building
or of Separated Part
Floor Area (m2)
Cubic (m3) Capacity
Ground or Upper
Storey
Basement Storey
(incl. Floor Over)
no limit
3000
no limit
0.5
not applicable
no limit
no limit
no limit
1.0
not applicable
7.5
250
no limit
0.5*
1.0
7.5
500
no limit
0.5*
1.0
15.0
no limit
3500
1.0**
1.0
28.0
500
14000
1.0
1.5
no limit
no limit
no limit
1.5
2.0
no limit
2000
no limit
0.5*
not applicable
no limit
3000
no limit
1.0
not applicable
no limit
no limit
no limit
23.0
not applicable
(Contd.)
SP-1275
Page 45
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 16: Guide to Fire Ratings for various structures (Contd.)
Maximum Dimensions
Purpose, Group &
Type of Building
Building separated
part which is not
single storey
Building separated
part which is not
single storey
Industrial single
storey building or
separated part (no
basement)
Minimum Period (h) for Elements of Structure
Height (m) of Building
or of Separated Part
Floor Area (m2)
Cubic (m3) Capacity
Ground or Upper
Storey
Basement Storey
(incl. Floor Over)
7.5
150
no limit
0.5*
1.0
7.5
500
no limit
0.5*
1.0
15.0
no limit
3500
1.0**
1.0
28.0
1000
7000
1.0**
2.0
no limit
2000
7000
2.0
4.0
7.5
150
no limit
0.5*
1.0
7.5
500
no limit
0.5*
1.0
15.0
no limit
3500
1.0**
1.0
28.0
1000
7000
1.0
2.0
No limits
4000
14000
2.0
4.0
no limit
2000
no limit
0.5*
not applicable
no limit
3000
no limit
1.0
not applicable
no limit
no limit
no limit
2.0
not applicable
(Contd.)
June 2004
Page 46
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 16: Guide to Fire Ratings for various structures (Contd.)
Minimum Period (h) for Elements of
Structure
Maximum Dimensions
Purpose, Group &
Type of Building
Building separated part
which is not single
storey
Other non-residential
single storey building
or separated part (no
basement)
Height (m) of Building
or of Separated Part
Floor Area (m2)
Cubic (m3) Capacity
Ground or Upper
Storey
Basement Storey
(incl. Floor Over)
7.5
250
no limit
0.5*
1.0
7.5
no limit
1700
0.5*
1.0
15.0
no limit
4250
1.0**
1.0
28.0
no limit
8500
1.0
2.0
28.0
no limit
28000
2.0
4.0
no limit
2000
5500
2.0
4.0
no limit
500
no limit
0.5*
not applicable
no limit
1000
no limit
1.0
not applicable
no limit
3000
no limit
2.0
not applicable
no limit
no limit
no limit
4.0
not applicable
(Contd.)
SP-1275
Page 47
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 16: Guide to Fire Ratings for various structures (Contd.)
Minimum Period (h) for Elements of
Structure
Maximum Dimensions
Purpose, Group &
Type of Building
Height (m) of Building or
of Separated Part
Floor Area (m2)
Cubic (m3) Capacity
Ground or Upper Storey
Basement Storey
(incl. Floor Over)
7.5
150
no limit
0.5*
1.0
7.5
300
no limit
0.5
1.0
15.0
no limit
1700
1.0**
1.0
15.0
no limit
3500
1.0
2.0
28.0
no limit
7000
2.0
4.0
28.0
no limit
21000
4.0
4.0
over 28.0
1000
no limit
4.0
4.0
Building separated part
which is not single
storey
(Contd.)
June 2004
Page 48
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Modifications
Any element of structure should have at least the minimum period needed for any other element structure, which it carries or supports (whether that other element
is load bearing or not).
*
Increased to 1 hour for separating walls. Reduced to 0.5 hour if the area of the basement is 50 m2 less.
**
Reduced to 0.5 hour for any floor (which is not also a compartment floor), but not for any part of floor, which contributes to the support of the
building as a whole and not for any beam, which supports the floor.
Notes: 1. The floor area of each storey in the building or where the building is divided in compartments the floor area of each storey in the compartment of which
the element structure forms part.
2. The cubic capacity of the building or where the building is divided into compartments cubic capacity of the compartment of which the structure forms
part.
3. Where the building is fitted throughout with an automatic sprinkler system meeting relevant recommendations of BS 5306: Part 2.
SP-1275
Page 49
June 2004
Version 1.0
2.10
Specification for Civil & Building Works – Design Criteria Manual
Roofs
Due consideration shall be given to the provision of access to roofs, where necessary for
maintenance etc. In situations where required, a safe means of access shall be provided.
Also waterproofing details in these instances shall be such that they will satisfactorily
withstand the likely subsequent wear and tear.
2.10.1
Thermal Requirement
Roofs should have a maximum ‘U’ value of 0.6 W/m2 0C. Insulation should be capable of
withstanding rodent attack in situations where it may be exposed to the same. Roofs are
subject to intense heat and thermal movement and waterproof membranes shall be
adequately protected or detailed to withstand these conditions. It should be possible to
inspect and repair the membrane periodically and consideration should be given to
permanent access. Because of its exposure special care should be taken when specifying
roof insulation for ‘Upside-Down’ roofs, in terms of required insulation characteristics,
durability, water absorption and physical strength.
2.10.2
Water Discharge
Rain is infrequent, but when it does occur it can be torrential, consequently, traditional
gargoyles are the preferred method of rainwater disposal from flat roofs and should be
employed. Careful consideration shall be given to the projection of gargoyles and to the
ground treatment where rain water discharges. Gargoyles shall be provided with suitable
drips to prevent water running down the face of the building causing unsightly stains.
Gargoyles shall be sited away from doors, lights and where possible windows.
2.10.3
Flat Roofs
Flat roofs should be promoted where possible. Pitched roofs, other than for warehouses/
workshops, are not permitted in the Muscat Area. The upside down flat roof has the added
advantage that the roof insulation protects the waterproofing layer from both the intense heat
and puncturing. Extremely careful detailing of such roofs is essential to ensure durability.
Flat roofs shall be provided with a minimum fall of 1.80. Consideration shall be given to
pre-cambering, particularly on long span roofs to prevent ponding. In any case ponding
shall not occur.
Parapets on flat roofs are a natural source of building defects, particularly when of block
work construction.
Parapets shall be carefully detailed to control thermal movement with control joints not
exceeding the spacing in section 2.8.1.4.
Parapets shall be securely fixed to the roof slab and shall be capable of resisting a minimum
horizontal load, on access roofs, of 0.75 kN/m run at the top of the parapet which should be
a minimum of 1.1 m above the roof covering.
Flat roofs cast on load bearing block work should contain a slip plane between the block
work and slab soffit to allow for thermal movement of the slab without distressing the block
work. The roof slab, however, must be suitably held in place to ensure stability criteria are
maintained.
June 2004
Page 50
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.10.4
Version 1.0
Pitched Roofs
Pitched roofs shall be avoided wherever possible. As a general rule, only flat roof designs
shall be used in the Muscat Area. Pitched roof designs may be considered in the Interior
only if it needs to match existing pitched roofs, or used for warehouses/ workshops and
sunshades. Pitched roofs in the Muscat Area have to be hidden by using appropriate
facades.
When used, pitched roof plan shapes shall be kept as simple as possible, hips and valleys
should be avoided. The construction shall be such as to result in a completely waterproofed
roof.
Consideration shall be given to ridge vents in order to reduce internal design pressures
arising from wind loading and where required to provide natural ventilation.
Pitched roofs shall generally have a slope of 200.
Gutters and downspouts shall only be provided over entrances and where people have to
pass. However adequate details at ground level shall be provided to prevent erosion and
percolation.
Design of Sunshades and standard details are covered under a separate document: SP-1283
Specification for Standard Sunshades – ‘Design & Standard Drawings’.
2.10.5
Roof Sheeting
It is important to fully specify the roof sheeting requirements on design drawings. The
following minimum requirements shall be used:
Galvanised Steel Sheeting shall:
1.
Be painted with a protective coating on both sides, with a minimum of 25
microns on the external face, and 12.5 microns for the internal face.
2.
Have a minimum thickness of the metal of 0.5 mm.
3.
Have a profile depth of not less than 26 mm.
4.
Not be used in severe marine areas (for example, MAF, RAH, etc.): this is
also in line with the requirements of the Muscat Municipality.
5.
Be thoroughly inspected during erection and before acceptance, looking
carefully how drilled holes and cut edges are finished off (ensure drill
cuttings are not left as a deposit on the sheeting upon completion of the
works).
6.
Be inspected on a yearly basis for deterioration, resulting in the sheets being
washed down to remove salt deposits.
Aluminium Sheeting shall:
SP-1275
1.
Be painted with a minimum of 50 microns on the external face, and the
internal face is painted or lacquered,
2.
Have a minimum thickness of the metal of 0.7 mm,
3.
Have a profile depth of not less than 26 mm,
Page 51
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
4.
Be inspected on a two yearly basis, resulting in the sheets being washed
down to remove salt deposits,
5.
Be fixed with stainless steel self-tapping screws and isolated from the
purlins with In-seal Tape.
In addition to the above two materials (but ignoring sheeting materials such as GRP/ GRE/
etc.), a third type of material may be used known as 55%AIZn Coated Steel Sheeting. This
material has an ideal mix of 55% Aluminium, 43.4% Zinc and 1.6 Silicon. The material
shall follow the same requirements as Galvanised Steel (see above), but can be used for
Coastal Areas (MAF, RAH, etc.). There might be problems related to powder coating this
material and therefore colour choices will be limited.
2.11
Built-in-Furniture
All cupboards shall be fitted with shelving to maximise the use of the storage space.
In the layout of kitchens particular attention shall be paid to safe distances between electric
points and the sink. Kitchens shall be designed to be ergonomically and correctly related in
the layout of the parts. In general,
Broom cupboard – Fridge/Freezer – Worktop – Sink Worktop – Cooker Worktop. Worktop
shall have integral up stands.
Fitted wardrobes shall be provided in all bedrooms including SS rooms and Clinic wards.
Where rooms are in use by two persons two wardrobes shall be provided.
In each dwelling bathroom, and each room with bed(s) and basin, a bathroom cabinet shall
be provided with mirror front, two sections, shaver point and light.
Pin boards shall be provided to all:
1.
JS Messes – Entrance Halls, Billiards Rooms, Table Tennis Rooms, Dining
Rooms.
2.
Offices.
3.
Squash viewing gallery.
To detached and semi-detached accommodation and mess block, curtain pelmets shall be
provided.
To outdoor cinemas, slatted hardwood seating shall be provided.
To SS Mess firm bar with back display and storage shall be provided.
2.12
Security
2.12.1
Fencing and Gates
All fencing and gates shall comply with the requirements of the Company standard
specification SP-1279-P Specification for Civil & Building Construction – ‘Fencing &
Gates’. The consultants drawing shall make reference to the fencing and gate types
contained therein.
Types of fences to be used in various locations are shown in Table 17:
June 2004
Page 52
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 17: Types of Fences
Location
Type of Fence
Air Fields and Air Strips
D
Booster Station
B
Contractors Area – (Industrial)
C
Contractors Area – (Residential)
C
Corrosion Monitoring Pit
Barrier
Explosives Store
A
Farms
C
Flares – Ground
C
Flares – Tower
C
Garbage Dumps
C
Gas Plants (Double Fence)
A
Gathering Station
B
H2S Well
B
High Pressure Gas Well Heads
B
Interior Camps
B
Isotope Pit
A
Main Line Block Valve Station
B
Main Line Pump Station
A
Microwave Areas
B
Oil Tank Farm – Primary
B
Oil Tank Farm – Secondary
B
Oil Terminal & Metering Station (Double Fence)
A
Oxydation Ponds
C
Pig Launchers/ Catchers (when separate)
B
PDO Industrial Area – Camp Workshop
C
(Contd.)
SP-1275
Page 53
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 17: Types of Fences (contd.)
Location
Type of Fence
PDO Industrial Area – Fire Station
C
PDO Industrial Area – Fire Training
C
PDO Industrial Area – Main Workshop
C
Power Station
B
Production Station
A
Reverse Osmosis Plant
C
Right of Way (only in Populous Areas)
Barrier
Sewage Treatment Plants
C
Sub Station
B
Supply Yard – Sub Station
B
Supply Yard – Surplus
B
Supply Yard – Scrap
B
Telecom Centres
A
Telecom Towers
B
Water Injection Area (when separate)
B
Well Test Module
B
In addition to the above requirements, a standard signboard (refer SP-1284 Specification for
Signs & Signboards – ‘Standard Signs Catalogue’ shall be placed at the entrance of the
fenced compound, indicating the presence of a ‘Restricted Area’ (refer CP-122). It should
be noted that the rationale for installing fences and gates as tabled above, is as a direct result
of having identified Specific HSE Site Hazards and/ or Specific Security related Access
Control Requirements.
The HSE Access Control Procedure (refer CP-122 and the documents referenced therein),
Stipulates that the asset holder (as defined in the Corporate Asset Holder Register) is
required to specify those areas, which need Access Control (based on what hazards and
threats have been identified). It is possible therefore, that asset holders may decide to install
fences/ gates in locations not included in the above table.
Low Pressure Well Heads and Remote Manifolds do not require fencing. For details refer
SP-1127 Plant Equipment & Layout Specification.
June 2004
Page 54
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.13
Version 1.0
Paint Finish & Colour
Colours shall be to British Standard BS 4800. If specific colours are not requested or
specified, the following colours should be used for:
08-B-15
:
Magnolia
10-B-15
:
Ivory
08-B-17
:
Wood Smoke
06-C-33
:
Honeysuckle
14-C-31
:
Light Green
00-E-55
:
White
For the non-specialised buildings, that is, accommodation, offices, exposed service pipes,
for example water pipes, shall be painted to match their background colour.
2.13.1
External Surfaces
All external walls should be 06-C-33 throughout (unless specified otherwise). All exposed
drainage or vent pipes in front of the external wall shall be painted the same colour as the
wall.
2.13.2
Internal Surfaces
All Mess Dining Rooms, Games Rooms, Lounges, Billiards Rooms and TV/Video Rooms
shall be 08-B-17 - Wood Smoke.
All Clinic and Hospital Wards shall be 14-C-31 – Light Green.
All Detached and Semi-detached Housing shall be 08-B-15 - Magnolia.
Where the soffit of the ceiling is exposed (either exposed concrete or plastered ceilings) use
00-E-55.
All other areas shall be 10-B-15 - Ivory.
The type of paint finish shall be as described in Wall Finishes (Appendix D).
2.14
External Works
External works shall be designed to suit the particular traffic, whether vehicular or
pedestrian. Emphasis is to be placed on cost saving by, for example, minimising lengths of
roads, paving only essential areas and providing a finished level, which will minimise
earthworks and yet function to the technical requirements.
2.14.1
Site Preparation
Site is to be inspected and general site clearance requirements established. Design is to
include for removal of debris, vegetation and vegetable soil, removal or replanting plants,
trees, bushes, etc. and protection measures for plants, trees and bushes where they are to
remain within the project works.
SP-1275
Page 55
June 2004
Version 1.0
2.14.2
Specification for Civil & Building Works – Design Criteria Manual
Landscaping
All projects involving landscaping should incorporate the current PDO landscaping
specification SP-1279-Q. Particular attention should be paid to the creation of a localised
microclimate with low, medium or high canopies as appropriate to the particular situation.
For Landscaping Irrigation refer to section 2.17.8.
2.14.2.1 Hard Landscaping
Hard landscaping should be designed with regard to considerations of general aesthetics.
Within open spaces hard landscaping/foot paths etc. should be designed with curves, that is,
straight lines should be avoided. An aesthetically pleasing variety of colour should be
achieved in hard landscaping.
2.14.2.2 Soft Landscaping
Soft Landscaping should be designed considering both the aesthetic aims and long term
maintenance requirements.
2.14.2.3 Screening Requirements
Consideration should be given to the need to reduce dust nuisance in amenity areas by
landscaping in conjunction with other appropriate means, for example, fabric attached to
fences.
2.14.3
Roads
2.14.3.1 Internal Access Road
Where internal access roads are required to serve buildings, car-parking areas etc., the
Consultant must clarify the likely range of vehicles that will be requiring access.
Where the layout is designed for private vehicle usage, mountable kerbs should be provided
where necessary to allow for occasional heavy vehicle passage.
1. Geometric Design:
Typical desirable and minimum standards for internal access roads for both light and
commercial vehicle usage are given in Table 18. It should however be borne in mind that
the dimensional requirements may vary according to the actual size of commercial vehicle
requiring access.
Table 18: Typical Design Standards For Internal Access Roads
Light Vehicle
Commercial Vehicle
Dimensions in metres
Max.
Min.
Max.
Min.
Carriageway Width – 1 way
4.5
3.0
5.5
4.5
Carriageway Width – 2 way
6.0
4.5
7.0
6.0
Centre Line Radius
30.0
10.0
60.0
30.0
Kerb Radius at Junctions
6.0
4.0
15.0
10.0
Roadside Parking bay Width
June 2004
2.5
Page 56
3.5
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Roads are to be cambered or with cross fall at 1.5% and provided with adequate longitudinal
gradient to ensure dispersal of storm water into the proposed drainage system.
Care shall be taken in the design to avoid flat spots and consequent ponding of storm water.
Care shall be taken to ensure adequate visibility sightlines particularly where buildings are
located adjacent to junctions.
2. Pavement construction
The pavement is to be constructed to suit the future loading over the specified design life.
Where loadings are light, consideration should be given to designing a pavement of granular
material sealed with surface dressing (e.g. “spray and chip”, SPP stabilised and sand sealed
or slurry dressing).
Where roads will be trafficked by commercial vehicles, the anticipated traffic loading should
be predicted and the pavement designed in accordance with the procedure set out in the
latest issue of the “Oman Highway Design Manual”, as well as what is advised in both SP1279-R & S (Specification for Civil & Building Construction – ‘Roads & Paving’, and
‘Graded Roads, Rig Locations, Airstrips, Tank Pads & Bund Works).
3. Road Signs & Markings:
Road signs and markings should be minimised and yet give clear direction to drivers. Road
signs should be of minimum 600mm size and be in accordance with SP-1284 Specification
for Signs and Signboards – ‘Standard Signs Catalogue’.
Road markings should be either thermoplastic or road marking paint to suit the scale of
works. A mandatory warning sign is required below the danger warnings at all junctions of
the Grades/Tarmac transition to give more information about the dangerous situation.
2.14.3.2 External Access Roads
Where external access roads are required to serve a facility, the road must be designed to
suit the initial level of service and yet allow for future upgrading if required.
1. Geometric Design
Roads are to be designed to the geometric design standards set out in the latest issue of the
“Oman Highway Design Manual”, using an appropriate design speed.
Road surfaces are to be profiled to ensure rapid dispersal of storm water.
2. Pavement Construction
Figure 4 details standard pavement construction for PDO interior roads, which will allow
progressive development of the standard of road as required. These are further detailed in
SP-1279-S Specification for Civil & Building Works – Graded Roads, Rig Locations,
Airstrips, Tank Pads & Bund Works’. Roads, which are to be adopted by the Ministry of
Communications, are to be constructed with asphaltic concrete overlying granular pavement
layers. The pavement is to be designed in accordance with the latest issue of the “Oman
Highway Design Manual”.
Currently tests are being performed using road material stabilisers. Their performance in
these tests might well promote the use of road stabilisers in the construction of both graded
SP-1275
Page 57
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
and paved roads. The road designer shall therefore investigate the status of these tests, and
hence assess their suitability in the design of all roads.
Successful road base stabilisation, say with SPP (Sulphonated Petroleum Product), could
result in CBR of greater than 120, which will in turn allow cheaper road surface dressings to
be used, such as Sand Seal and Slurry. However, the latter road seal thickness is only in the
order of 6 to 8 mm, and therefore road surface finish tolerance (and therefore the road’s
“riding comfort”) is likely to be poor.
3. Road Signs and Markings:
Road signs and markings should be provided to suit the scale of the road and shall be in
accordance with the latest issue of SP-1284 Specification for Signs and Signboards –
Standard Signs Catalogue and the “Oman Highway Design Manual”. A mandatory warning
sign is required below the danger warnings at all junctions of the Grades/Tarmac transition
to give more information about the dangerous situation.
2.14.4
Car Parks
Car parks should be provided on-site to cater for employees, operational needs and visitors
typical car park spacing requirements are given in Table 19. Car parks shall be designed so
as to discourage parking in the aisles and access routes. Where parking is designed for
commercial vehicles, the standards to be applied are to suit the particular usage.
2.14.4.1 Standard Parking Layout
Car parking facilities shall be generally designed to the layout standards shown in Figure 5.
Parking bays are based on a 3 m x 6 m module. Where available space permits, parking
areas should be designed for 900angle parking.
Car parks shall be profiled to ensure dispersal of storm water to the proposed drainage
system.
2.14.4.2 Car Parks Construction
Car parks be surfaced with 80 mm thick interlocking block paving, asphaltic concrete or
surface dressing as appropriate to the scale of construction and required aesthetics.
Pavement construction is to be designed to cater for the relevant loading over the design
period.
Where the construction is in interlocking block work, use should be made of different
colours to clearly distinguish between vehicle routes and parking areas. In general vehicles
routes are to be paved with grey blocks and parking areas with charcoal grey blocks.
Landscaping and street furniture should be set back from kerb lines to allow overhang of
vehicles.
2.14.4.3 Road Signs & Markings
Road signs and markings should be minimised and yet give clear direction to drivers.
Where interlocking block work construction is proposed, use should be made of coloured
blocks for markings and bay divisions. Road signs should be of minimum 600 mm size and
in accordance with the latest issue of SP-1284 Specification for Signs & Signboards –
‘Standard Signs Catalogue’.
June 2004
Page 58
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Figure 4: Standard Pavement Construction for Interior Roads
(Contd.)
SP-1275
Page 59
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Figure 4: Standard Pavement Construction for Interior Roads (contd.)
(Contd.)
June 2004
Page 60
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Figure 4: Standard Pavement Construction for Interior Roads (contd.)
(Contd.)
SP-1275
Page 61
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Figure 4: Standard Pavement Construction for Interior Roads (contd.)
June 2004
Page 62
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 19: Typical Car-parking provision
Parking Spaces
Facility
On Site
Off Site
500 – 900 m2
2
1
200 – 400 m2
1
1
Flats/ Town Houses
1
0.5
Kindergarten
14
12
Elementary
16 – 38
24 – 96
Preparatory
23 – 54
22 – 86
Secondary
200 - 375
38 – 77
Hospital (40 bed)
44
0
Clinic (18 bed)
20
0
Social and Cultural
Social Centres
20
30
Offices
All Centres
1/50 m2 (1)
1/50 m2 (1)
Retail
Camp Shops
1/30 m2 (1)
Other Centres
1/30 m2 (1)
Residential
Education
Health Care
Transport Services
SP-1275
Type
Facility Housing
Bus Station
0
20
Bus Terminus
0
40
Bus Garage
50
0
Page 63
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Figure 5: Standard Parking Layouts
(Contd.)
June 2004
Page 64
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Figure 5: Standard Parking Layouts (contd.)
SP-1275
Page 65
June 2004
Version 1.0
2.14.5
Specification for Civil & Building Works – Design Criteria Manual
Materials Storage Yards
Material storage yards should be designed to suit the particular material to be stored.
Where applicable, the following are to be included:
-
Storage areas for perishable goods and non-perishable goods.
-
Lay down areas for perishable goods and non-perishable goods.
-
Shake out and sorting out areas.
-
Surplus material store.
-
Area for scrap material.
-
Dedicated facilities for receipt and despatch.
Particular attention must be made for access and manoeuvre of forklifts and delivery
vehicles.
2.14.6
Footpaths
Footpaths are to be provided, where required, to clearly define pedestrian routes. Analysis
is to be carried out of the desirable walkway routes, bearing in mind that pedestrians tend to
try to minimise the distance walked.
2.14.6.1 Footpath Dimensions
Footpaths are to generally 2 m wide. This may be reduced to 1.5 m minimum where layouts
and volume of pedestrian traffic permits.
2.14.6.2 Footpath Construction
Footpath are generally to be surfaced with 60 mm coloured interlocking block work or pre
cast concrete slabs overlying sand laying course and granular base material. Footpaths are
to be bound by kerbs.
2.14.7
Well Location and Flow/Bulk Line Layout
In principle, all costs associated with access to wells and routing of flow lines to the
Gathering Station, shall be kept to a minimum. The simplified sketch, shown below (Figure
6), shows how the above may be achieved. Here, the access field roads enter the field from
one side, whilst the services to the wells, as well as the flow lines and/or bulk lines,
enter/exit from the other side of the field. By doing so, the number of road crossing is kept
to a minimum (in this example only one road crossing is required), allowing all power
cables to be routed under roads.
June 2004
Page 66
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Figure 6: Concept Layout Of Wells, Drilling Locations Flow/Bulk Lines Using Min. Road Crossing
SP-1275
Page 67
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.14.7.1 Piping Corridors
Design of piping corridors shall take account of:-
2.15
-
Manifolds flow lines into bulk lines, located off-centre.
-
Potential use of multi port selector valves,
-
Expansion loops and pipe support loads/overturning effects,
-
Future possibility of infill wells, and therefore access to them,
-
Access to wells, to services, to flow lines and bulk lines,
-
Power/signal distribution, located off-centre.
-
Well platform location and orientation, and rig access.
Building Services Design Requirements
Building services design criteria shall be established in consultation with the Company.
Designs shall be fit for purpose and requirements for economy, reliability, maintainability,
flexibility and life expectancy shall be agreed with the company.
The requirements here described shall apply to the following Sections of this documents.
2.16: Air Conditioning & Ventilation
2.17: Plumbing
2.18: Sewage Treatment
2.19: Electrical
One set of the final approved design calculation shall be submitted to the Company for the
record purpose.
2.15.1
Manufacturers & Vendors
Material and equipment shall be selected from the latest PGSC (Product Group Service
Codes) list. .As stipulated, Type A materials, shall be identified by duty and specification
only, not by the manufacturer. In the selection of materials and equipment, building services
designs shall show a preference for the use of local, and GCC, manufacturers.
2.15.2
Specification & Drawings
Building services designs should take the following form.
-
Company Standard Specifications
-
Project Particular Specification
-
Equipment Schedules
-
System Schematics & Isometrics
-
Control Logic & Line Diagrams
June 2004
Page 68
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.15.3
-
Electrical Line Diagrams
-
Wiring Diagrams
-
External Layout Drawings, Scale 1:200 or 1:100
-
Internal Layout Drawings, Scale 1:50
-
Equipment Area Drawings, Scale 1:20
-
Details drawings, Scale 1:10
-
The maximum drawing size shall be A1.
Version 1.0
As Built Drawings
Building services design should normally include updating the drawings to “As Built”.
2.15.4
External Services
External services include the services of water, electricity, sewerage, telecommunications,
fire alarm, fire protection and irrigation. Chilled water service may also be included.
External service design should include the allocation of rights of way.
Wherever possible services should be routed in common services trenches located in
unpaved areas.
Minimum dimensions for depths of cover and for separation between services are shown on
company Standard Drawings STD-2-1404.
2.16
Air-Conditioning & Ventilation
The Building Services design shall include, but not be limited to, overall scheme design,
sizing of equipment and pipe work and coordination with other service.
Loads should be calculated using ASHRAE, Carrier or CIBSE methods.
District chilled water service installations should comprise buried mains served from a
chiller compound suitably located to reduce the environmental impact, particularly noise, on
adjacent buildings. The chiller compound pump room may be combined with an electrical
substation in one building. Allowance should be made for future expansion of district
chilled water schemes, and this should be done with minimal costs. For schemes with a high
probability of future expansion, ring main chilled water distribution be provided, with
secondary chilled water pumps at each building. For other schemes, radial distribution may
be appropriate. In any case, the logistic and limits of future expansion should be established
and agreed with the Company.
The interface with the electrical design shall be established with the Company as described
in section 2.19.
The Air-Conditioning & Ventilation system, materials and Equipments shall comply with
the SP-1285-B Specification for Civil & Buildings Utility Services – ‘Air Conditioning
Works’.
SP-1275
Page 69
June 2004
Version 1.0
2.16.1
Specification for Civil & Building Works – Design Criteria Manual
Design Criteria for Air Conditioning & Ventilation Works
2.16.1.1 Outdoor Conditions
Design outdoor conditions should be based on relevant meteorological data for each project
area and shall be subject to Company approval. In the absence of definitive data, the figures
given in Table 20 should be used.
Table 20: Outdoor Air conditioning Design Criteria.
Location
Summer
Winter
Coastal Oman
44/33 0C DB/WB
18/15 0C DB/WB
North Oman
50/30 0C DB/WB
13/11 0C DB/WB
South Oman
47/32 0C DB/WB
12/10 0C DB/WB
2.16.1.2 Indoor Conditions
Appendix K includes the following criteria relating to the majority of company facilities.
-
Room temperature
-
Room humidity
-
Minimum fresh air
-
Minimum air change
-
Maximum noise rating
Where criteria are not listed in Appendix K, design indoor conditions should be based on the
CIBSE Guide, Section A1, Environmental Criteria for Design, and shall be subject to
Company approval.
Normally, humidity control should not be necessary. However, the critical psychometrics of
each design should be checked to ensure that reasonable comfort conditions are always
achieved.
2.16.1.3 Equipment Overcapacity
With diversity and standby requirements taken into account, air-conditioning equipment
should be sized to have a minimum overcapacity of 15%.
2.16.2
Chilled Water
2.16.2.1 Chiller compounds & Equipment
Water chillers shall be outdoor, package units located within a secure enclosure. An access
gate shall be provided for each chiller and external lighting shall be provided for
maintenance purposes.
June 2004
Page 70
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
An air-conditioned pump room should be provided to house the following equipment.
-
Primary chilled water pumps
-
Motor control panel
-
Pressurisation unit
-
Water treatment unit
-
Lighting and small power distribution board
Pipe work and cables between chillers and pump room should be directly buried.
2.16.2.2 Controls
In the selection of water chillers, proper account shall be taken of low load operation. In
any case, chillers should be capable of running at 25% full load or less.
One primary pump should be provided to run with each chiller, with one additional pump as
standby. Selector control should be provided for both chillers and pumps so that any pump
may be selected to run with any chiller. The lead pump should also act as jockey pump in
the event that no chiller is required to run.
2.16.2.3 Pipe work
Pipe work should be set out to facilitate draining down at low points and automatic venting
at high points. Provisions shall be made to allow the flushing of the complete chilled water
circuit.
Water treatment shall include a pre-commissioning descaler, anticorrosion dosing and an
algae inhibitor.
Chilled water systems should normally be pressurised to 1 bar(g).
2.16.3
Specialist Areas
2.16.3.1 Battery rooms
The design of battery room ventilation system shall fully comply with the requirements of
DIN 57510/VDE 0510.
Battery systems considered here are as follows.
Nickel Cadmium
Lead Acid
Trickle charge
1.4 – 1.45 volts/cell
Boost charge
1.6 – 1.65 volts/cell
Trickle charge
2.23 volts/cell
Boost charge
2.4 volts/cell
All cells in which the electrolyte is in aqueous solution give off hydrogen and oxygen during
charging, the major gassing occurring towards the end of the charging or during boost
charging. Typical boost charging cycles are for 8 hours every 6 months. An explosive
mixture is formed when the hydrogen concentration, by volume, in air exceeds 3.8%.
SP-1275
Page 71
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
A safe dilution (20% of the above) will be maintained using the following formula.
Q = 0.055 x N x I
Where,
Q = Airflow in m3/h
N = Number of battery cells. (Number of blocks x cells/block)
I = Charging current at the end of the boost charge, in amps
(For design purposes, 25% rated charger current in amps)
Battery rooms should be airconditioned to maintain an average room temperature of 10 –
300C, to give best battery performance and service life, and to limit electrolyte temperature
rises during charging.
Inlet air should be introduced at low level, from the building airconditioning system, and
mechanically exhausted to atmosphere at as high a level as possible, to avoid air pockets.
When ventilation is provided as described above, then the battery room shall be classified as
non-hazardous. However, due to possible local concentrations of gas, the exhaust fan
should be suitable for a Zone 2 installation and resistant to the electrolyte.
2.16.3.2 Electrical Substations & Switch Houses
Substations and switch houses should normally be designed as completely closed structures,
with dust tight construction and cable passages.
The air conditioning design shall include two or more separate installations, which shall be
individually electrically supplied and controlled.
The indoor design criteria shall be such that:
During normal operation, the maximum indoor temperature shall not rise above 350C DB.
In the case of breakdown or maintenance to one of the installations, the maximum indoor
temperature shall not rise above 400C DB.
The maximum supply air relative humidity shall not exceed 90%.
2.16.3.3 Gas Bottle Stores
Spare and empty gas bottles shall be separated and stored in an upright-chained position and
housed in a purpose built, well ventilated, shaded and secured enclosure located at least 20
m from combustible materials. Possible air pockets at high level shall be avoided.
Requirements are normally satisfied by the provisions of a cage of tubular frame, chain link
fencing and roof sheeting with an internal separation.
Electrical installations in gas bottle stores shall be suitable for Zone 2.
June 2004
Page 72
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.16.3.4 Kitchens
The guidelines given below address commercial catering installations, criteria for domestic
kitchens are given in Appendix K.
Often it is not possible to achieve comfort conditions in kitchen cooking areas at all times
because of the extremely high expenditure involved. In such cases, it should be sufficient to
maintain acceptable working conditions.
Generally air should be extracted from cooking and subsidiary areas through double-skin
hoods located over the main cooking and dishwashing equipment. Hoods should be sized to
overlap equipment by 100 mm, to have a minimum face velocity of 0.3 m/s and to have a
minimum clearance of 1900 mm above finished floor level. The hood volume should suit
the equipment covered. 80 – 85% of the replacement air should be provided, as filtered
outside air, at the internal perimeter of the hood. If this part of the replacement air is
supplied outside the hood, it should be 100% outside air-cooled to plenum conditions, say
250C. Ducted, re-circulating systems should not be used because of greasing problems. The
remainder of the replacement air should be drawn from adjacent areas so that a negative
kitchen pressure is maintained to contain odours.
Extract ductwork shall be designed for ease of cleaning, with flanged joints and man-size
access doors, and shall be constructed of galvanised sheet steel, minimum thickness, 1.0
mm. Air velocities should be a minimum of 9 m/s. Extract fans should be treated for
moisture and heat, and attenuators should be avoided.
Comfort air conditioning should be provided by high level fan coil units.
The requirements for fire detection and protection in kitchens are included in SP-1075
Specification for Fire & Explosion Risk Management.
2.16.3.5 Laboratories
Laboratory air conditioning design shall be based on the specific requirements of the
laboratory work. However, the following guidelines should apply.
Laboratory working and solvent storage areas should be provided with an 100% outside air
system, and should be under positive pressure to reduce dust ingress. In interior Oman,
heating should be included for winter morning start up. Ancillary areas, such as offices,
should be provided with separate, re-circulating systems such as fan coil units. Mechanical
exhaust should be provided for chemical and material storage areas, typically at a rate of 6 –
15 air changes an hour, depending on the items stored.
Fume cupboards for use with hydrocarbons should have an acid resistant 18/12 stainless
steel internal fume chamber with integral bench top. The minimum air velocity over a 400
mm deep sash opening should be 0.75 m/s.
Fume cupboards for general use should have 1 mm thick high-pressure plastic laminate on
the sides and solid epoxy resin bench tops. The minimum air velocity over a 400 mm deep
sash opening should be 0.5 m/s.
All fume cupboards should be provided with airfoil sash opening profiles and high-level bypass grilles to ensure constant volume airstreams.
Fume cupboard exhaust ductwork shall be constructed of HDPE and shall not contain fire
dampers.
The internal fume chamber, exhaust ducting and exhaust fan shall be classified as Zone 1
hazard. The internal light fittings therefore shall be separated from the fume chamber by an
airtight glass plate. Solvent and gas bottle stores shall be classified Zone 2.
SP-1275
Page 73
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.16.3.6 Temporary Buildings
Air conditioning design parameters for temporary buildings, such as transportable units,
should be similar to those for permanent buildings. However, due to inferior thermal
storage characteristics, electric heating may be required.
2.16.4
Condensate Drains
Condensate drains from indoor terminal units should discharge to wash hand basins, or
sinks, before the trap to ensure that the connection to the drainage system is always sealed.
While drains may discharge into planter areas, the use of soakaways should be avoided.
2.16.5
Refrigerant Pipe work
Pipe work shall not be directly buried, nor chased in floors or walls, but shall be enclosed in
preformed ducts or voids.
2.16.6
Automatic Shutdown
Activation of a fire alarm shall cause the shutdown of air conditioning system, unless
continued operation of the system does not cause spread of smoke to outside the area where
the fire has been detected.
2.16.7
Legionnaires Disease
Where installations include evaporate water-cooling, the guidelines of CIBSE TM 13,
minimising the Risk of Legionnaires Disease, shall be followed.
Particular attention is drawn to the optimum temperature for multiplication of bacteria and to
the design, operation and maintenance of evaporative water-cooling systems.
2.17
Plumbing
Plumbing installation design includes the following services:
-
Potable water,
-
Domestic hot and cold water,
-
Drainage,
-
Liquid petroleum gas,
-
Laboratory piped services,
-
Fire fighting water,
-
Swimming pools,
-
Irrigation.
Plumbing installation, materials and equipment shall comply with the following
specifications:
SP-1285-C Specification for Civil & Buildings Utility Services - ‘Plumbing Works’
SP-1285-D Specification for Civil & Buildings Utility Services – ‘Fire Protection Works’
SP-1280 Specification for Swimming Pools - ‘Design & Construction Guidelines’
June 2004
Page 74
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.17.1
Version 1.0
Potable Water
Normally, the primary source of potable water will be provided by the Company, which will
be by outside the scope of the Building Services Project.
The demand, size, location and interface for the potable water main connection(s) should be
established with the Company at preliminary design stage.
Connection to existing potable water mains shall require prior Company approval. The
valve and meter may be supplied and installed, and the service connection made, by the
Company.
The following Company Standard Drawings relate to water supply systems.
STD-2-1401: Typical Potable Water Details
2.17.1.1 Water Demand
Demand will vary with time, location and population. Average and peak consumption
figures should be subject to individual analysis for each system.
However, in the absence of definitive data, the figures in Table 21 should be used for
average demands:
Table 21: Typical Water Demands
Area
Water Demand
Coast
Residential
400 litre / day / person
Offices
180 litre / day / person
Industrial
As advised by the Company
Interior
Residential
450 litre / day / person
Offices
180 litre / day / person
Industrial
As advised by the Company
Similarly, peak demands may be taken as 5 times of the average.
2.17.1.2 Isolating Valves, Air Valves, Washouts
Isolating valves shall be located at:
SP-1275
-
Major intersections,
-
Branches off ring mains,
-
Regular intervals on distribution mains shall be 400 m maximum spacing.
Page 75
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Valve chambers should be located in areas with easy access but not subject to heavy traffic.
Pipelines shall have facilities for venting air, flushing and cleaning. In secondary
distribution networks, air may be vented through building connections. In pipelines of 300
mm dia or greater, air valves and washouts should be provided at high and low points
respectively.
2.17.1.3 Water Meters
Water meters shall be provided for each large user, down to and including all Senior Staff
accommodation (married and bachelor), and on the main transmission line for each
distribution network.
Meters should be fitted above ground at building entries, or in valve chambers below
ground.
2.17.1.4 Storage
The capacity and location of main storage tanks should be agreed with the Company. In
general, not less than 24 hours storage should be provided in any distribution system, but
this will depend on the source and location of the water supply.
Main water tanks should be provided with visual level indicators, access ladders, access
manholes, (with adequate provision for safety and lighting) etc. Inlet and overflows should
be close to access points for maintenance purposes.
2.17.1.5 Pumping
Pump sets should be designed to meet forecast peak demands. Constant pressure systems,
with run and standby facility, are preferred.
2.17.1.6 Sterilisation
Potable water systems shall be completely flushed out and sterilised, to the approval of the
Company, before being put into service.
Details of the sterilisation process are given in SP-1285-C Specification for Civil &
Buildings Utility Services – Plumbing Works.
2.17.2 Domestic Hot & Cold Water
Design of HWS/CWS systems shall comply with the requirements of BS 6700:
Specification for Design, Installation, Testing & Maintenance of Services Supplying Water
for Domestic Use within Buildings & their Cartilages.
2.17.2.1 Water Consumption
While published data may be used as guidelines, estimated consumption of water should be
based on specific use as well as numbers of consumers and fittings. For example, for Staff
Accommodation Blocks in the Interior, peak demand for HWS is for showers at the end of
shifts.
June 2004
Page 76
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Water heater sizes should therefore be based on the following.
Shower demand
:
say 0.1 l/s/shower
Shower duration
:
say 180 sec
:
say 75%
Number of showers
Diversity
Section 2.17.1.1 gives typical per capita water demands for different applications.
2.17.2.2 Water Systems
Systems should be designed for supply directly from the potable water main unless there is a
specific requirement for storage. In any case, drinking water draw offs shall be taken
directly from the main.
HWS/CWS systems shall be vented at all high points and provision for drain-down shall be
provided at all low points.
Treated effluent water may be used to flush toilet in order to conserve water. In such
situation, a separate close system shall be designed to tap from nearest irrigation source.
Refer also 2.17.8.
2.17.2.3 Isolation
The incoming main shall be provided with a stop valve and a drain cock, preferably located
immediately inside the building. The stop valve may be located in a valve chamber adjacent
to the building.
Connections to sanitary ware, or equipment, should be provided with a means of isolation.
However, in some applications, and subject to Company approval, it may be sufficient to
isolate in sections rather than individually.
2.17.2.4 Insulation
HWS/CWS pipe work exposed to ambient conditions, concealed in ducts and in false ceiling
voids, and in equipment rooms shall be insulated.
Pipe work buried in wall and floor chases shall be protected.
Surface mounted connections to equipment and fittings shall not be insulated but should be
painted.
2.17.2.5 Sterilisation
HWS/CWS systems shall be completely flushed out and sterilised, to the approval of the
Company, before being put into service (see section 2.17.1.6).
2.17.2.6 Flush Control Valves
All urinal cisterns, and other automatically flushed devices, shall be fitted with a flush
control valve to limit the waste of water.
Control should be by provision of push button flush pipe valves or may be by cistern cold
feed control valves.
SP-1275
Page 77
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.17.2.7 Water Closet spray Assemblies
Spray assemblies shall be provided for all AWC’s, and for EWCs in public toilets, located
on the right hand side of the pan.
2.17.2.8 Emergency Showers
Emergency showers shall be capable of delivering water at a minimum rate of 80 1/min at a
pressure of 0.3 bar(g).
Water to showers should be taken, by a dedicated gravity feed, from a cold water storage
tank. However, if insufficient head is available or the water temperature may exceed 35 0C,
then a connection should be taken directly off the incoming main, immediately after the
main stop valve.
2.17.2.9 Emergency Eye Wash Stations
Eye wash stations shall be self-contained units, mounted on wall brackets, located within 10
sec or 30 m of the hazard and such that the water temperature shall not exceed 40 0C.
Units shall flush both eyes simultaneously and deliver not less than 1.5 1/min.
2.17.2.10 Hot Water Service Dead legs
HWS deadlegs shall not exceed the lengths listed in Table 22. When dead legs do exceed
these length secondary HWS pumps shall be installed.
Table 22: Maximum HWS Dead legs
Pipe Size
2.17.3
Max Length
15 mm
12 m
22 mm
8m
28 mm
3m
Drainage
Design of above ground drainage systems shall comply with the requirements of BS EN
12056 ‘Gravity Drainage Systems inside buildings’
2.17.4
Sewerage
This section covers domestic sewage systems that discharge into treatment plants. Sewage
treatment is addressed in section 2.18 of this specification.
Systems handling industrial, non-biodegradable, waste shall be designed in consultation
with the Company.
Storm water drainage shall not discharge into sewage systems.
Systems should be designed in accordance with BS EN 752 Drain & Sewer Systems Outside
buildings and the following Company Standard Drawing STD-2-1030 Typical Manhole
Details.
June 2004
Page 78
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.17.4.1 Flow Rates
Rates of sewage flow vary with time, location and population. Average and peak flow rates
should be subject to individual analysis for each system. However, in the absence of
definitive data, the figures in Table 23 should be used for average dry weather flows
(DWF):
Table 23: Typical Sewage Flow Rates
Area
Water Demand
Coast
Residential
350 litre / day / person
Offices
160 litre / day / person
Interior
Residential
400 litre / day / person
Offices
160 litre / day / person
Similarly, in the absence of definitive data, peak flows may be taken as 3 times DWF.
2.17.4.2 Minimum Pipe Diameters
Below slab on grade, short runs
:
50 mm
Below slab on grade, main runs
:
110 mm
Building connections
:
110 mm
Between manholes
:
60 mm
2.17.4.3 Location of Manholes
Manholes shall be provided at all changes of direction and at all junctions. For straight runs
of pipe work, the maximum distance between manholes shall be 45 m.
2.17.4.4 Interceptors
Grease traps shall be provided at connections from catering installations and should be
located indoors. The use of enzyme dosing shall be considered during design.
Petrol/oil interceptors shall be provided at connections from vehicle workshop and fuel
stations.
2.17.4.5 Pipe work Under Buildings
The placing of drainage pipe work under buildings shall be avoided wherever possible.
Where unavoidable, pipes shall be laid in straight lines at one gradient. Access shall be
provided to all parts of the drain and flexible joints used at entry and exit to/from the
building.
SP-1275
Page 79
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.17.4.6 Structural Penetrations
Pipework passing through retaining walls, footings, ground beams etc., shall be sleeved,
with the same material, and packed with polystyrene or similar. Flexible joints shall be
provided at exits from buildings.
2.17.4.7 Connection to Existing Sewers
Connection to existing sewerage systems shall require prior company approval.
2.17.4.8 Sewage Pumping Stations
Pumping of sewage should be avoided where possible since, in addition to the extra cost, it
also forms the weakest link in the operation of a sewage system.
While the sewage pumping station design must take account of peak flows, the emphasis on
sizing pumps and the sump together with the levels of the flow switches should be on
keeping the sewage flowing so that potential problems of septicity in the sump and hydraulic
shock at the treatment plant are avoided. A typical flow rate would be 4 times DWF.
2.17.5
Liquid Petroleum Gas
Design of LPG systems should follow the recommendations of the following BS Standards:
-
BS 5482: Code of Practice for Domestic Butane and Propane Gas Burning
Installations &
-
BS EN ISO 10239 Small Craft Liquefied Petroleum Gas systems.
2.17.5.1 Gas Cylinder Stores
Refer section.2.16.3.3.
2.17.5.2 Regulators
For catering installations, primary regulators should be provided at bottle manifold
discharge to give a gas pressure of approximately 350 mb with all appliances operating at
maximum demand.
Secondary regulators should normally be supplied with each appliance, be fitted after the
appliance isolating valve, be adjustable, and be capable of reducing the gas pressure from
approximately 345 mb to the appliance operating pressure at maximum demand.
2.17.5.3 Emergency Shutdown
For catering and industrial systems, an emergency shut-off fire valve, normally of the
deadweight type, shall be provided in the main supply, upstream of the high-pressure
regulator(s). The valve should be operated manually, from exits, and automatically by the
fire detection system.
Cable or electrically activated systems may be used. Electrically operated actuators shall be
suitable for hazard Zone 1.
The following are accepted temperature ratings for deadweight gas valve fusible links.
June 2004
Inside hoods
:
185 0C
Elsewhere
:
160 0C
Page 80
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.17.5.4 Domestic Installations
Domestic LPG installations shall be carried out strictly in accordance with Company
Standard Drawing PDO-STD-2-1403.
2.17.6
Laboratory Piped Services
Design of laboratory service should follow the BS 3202: Laboratory furniture & Fittings.
2.17.6.1 Pipe work
All main distribution pipe work supplying laboratories should be exposed, wall or ceiling
mounted. Branches to fume cupboards, hoods and benches shall be provided with stop
valves within easy reach. Individual ranges of pipe work may be concealed in service ducts,
but should be separated from electrical services. Flammable gas pipe work shall be
accessible over the full length.
Exposed laboratory fittings should be chrome plate or plastic coat finish.
2.17.6.2 Hot and Cold Water
Refer section 2.17.2 of this specification.
2.17.6.3 Distilled Water
In small laboratories, distilled water should be provided in bottles. In large laboratories, a
piped system, with an outlet in each laboratory room, may be appropriate.
The use of demineralised water from plant utilities may also be appropriate, in which case
an ion exchange unit may be required.
2.17.6.4 Compressed Air
Dry and oil free compressed air shall be supplied from a compressor located in separate
equipment room of the laboratory. The compressor should be rated against 7 bar(g) and the
system should include a refrigerated air dryer, a pressure relief valve, regulators, filters and
pressure gauges.
Distribution should be by ring main, laid to fall with drain points.
2.17.6.5 Vacuum
The vacuum pump shall be located as directed by the Laboratory custodian. Unless directed
otherwise, the pump should be rated at 1.9 kPa(a). A buffer vessel and/or liquid catcher
shall be provided between pump and suction point.
2.17.6.6 Special Gases
Typical special gases to laboratory areas are listed in Table 24, which includes hazard
categories and typical off-take pressures.
Butane and Propane and system guidelines are given in section 2.17.5.
Gas cylinders shall be stored in a purpose-built compound, located in an area free from fire
risk and away from sources of heat or ignition, which shall be well ventilated, preferably by
natural means, and protected from direct sunlight and rain by a sloped canopy without air
pockets. Full and empty cylinders shall be stored separately. Inert, flammable and oxidising
gas cylinders shall be segregated.
SP-1275
Page 81
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Oxidising gas cylinders shall be separated from flammable gas cylinders by a minimum
distance of 7 m or by a 1 hr fire barrier. Gas cylinders shall be stored in special racks.
Table 24: Special Gases
Gas
Category
Pressure
Acetylene
Flammable
1.5 bar max
Butane
Flammable
0.025 bar
Carbon dioxide
Inert
3 bar
Helium
Inert
3 bar
Hydrogen
Oxidising
3 bar
LP Nitrogen
Inert
3 bar
HP Nitrogen
Inert
67 bar
Nitrous Oxide
Oxidising
3 bar
Propane
Flammable
0.025 bar
Oxygen
Oxidising
3 bar
A manifold set shall be provided complete with isolating valves, regulators and safety valves
which shall discharge to open air. Changeover should be manual with an electrically
operated alarm cabinet to give remote warning of cylinder exhaustion.
Electrical supply emergency shut down (ESD) switches shall be provided at each laboratory
room exit. ESD shall be provided for flammable gasses, activated either by gas ESD
switches and/or by the fire alarms.
Piping for flammable and for toxic gases shall include excess flow check valves.
Acetylene, hydrogen and oxygen piping shall include a flashback arrestor. Acetylene piping
shall be so positioned or protected so as not to be exposed to any source of heat.
Hydrogen piping shall include flow-limiting devices, and switch off devices functioning
when higher-pressure drops occur.
2.17.7
Fire Fighting Water
Company fire fighting design parameters are set out in SP-1075 Specification for ‘Fire &
Explosion Risk Management’. Brackish water should normally be considered too corrosive
for use as fire fighting water in buildings.
The Company standards for fresh water system materials and equipment shall comply with
the following: SP-1285-D Specification for Civil & Buildings Utility Services – ‘Fire
Protection Works’ and the Company Standard Drawing STD-2-1402: Typical Fire Water
Details.
June 2004
Page 82
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.17.7.1 Hose reels
Hose reels installations should be designed so that the whole of each floor area is protected,
and no part of the area protected is more than 6 m from a hose nozzle, hose extended. Water
supply should cater for a minimum of 3 hose reels operating at any time, with a total flow
rate of 2.3 1/s, at a working pressure of 2.1 bars (g) at the furthest reel.
The firewater installation should be an extension of the firewater mains. Where firewater
mains are not available, connection may be made to the domestic water supply. In such
cases, the connection shall be made before the incoming water main valve and be dedicated
to the hose reel installations, and fitted with an isolation valve a lockable devise. In
installations where the incoming main pipe work is UPVC, the service pipe work is copper,
and the hose reel pipe work is GI, then the GI branch shall be from the UPVC before the
change to copper.
Office areas hose reels should be automatic, swinging, recess type with 25m of 19mm hose.
Industrial area hose reels should be automatic, swing open, wall type with 30m of 25mm
hose.
2.17.7.2 Hydrants
Hydrants should be located in strategic positions around Company buildings, generally at 80
m spacing in industrial areas and 100 m spacing in residential areas, and should be installed
a minimum of 15 m from any building, preferably in soft earth or paved areas rather than
roadways.
Hydrants should be sized to give 8.3 l/s at 6bar(g) from a 19 mm nozzle.
2.17.7.3 Fire Storage Tanks
Tanks shall store water for both hydrant and hosereel supply, and should be sized to hold
sufficent water to supply 3 fire fighting jets, 19 mm nozzles, at 8.3 l/s for 45 minutes, i.e.
67.5m3 minimum. Tanks used for combined storage shall have a dedicated firewater outlet,
and a dedicated and secure firewater storage volume.
Below ground storage, such as swimming pools, with suction hose hydrants may be
appropriate.
2.17.7.4 Fire Pumps
Package fire pump sets shall be sized to supply 41.5 l/s with a minimum 4 bar(g) pressure at
the farthest hydrant.
2.17.8
Irrigation
Treated effluent (TE) from sewage treatment plants should be used for the irrigation of
Company community area soft landscaping.
TE irrigation applications shall comply with the requirements of the Ministry of Regional
Municipalities and Environment.
For some applications, it may be necessary or desirable to use potable water (PW). It is
therefore necessary to check directly with MRME Engineers on all such issues. In addition,
irrigation for Company residences should be taken off the dwelling PW supply, after the
water meter. In either case, the irrigation system demand should match the quality and
quantity of water available. The irrigation system shall comply with SP-1285-C
Specification for Civil & Buildings Utility Services – Plumbing Works & the following
Company Standard Drawings STD-2-1400: Typical Irrigation Details & STD-2-1401:
Typical Potable Water Details.
SP-1275
Page 83
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.17.8.1 Demand
Irrigation water demands should be determined for individual schemes taking account
evaporation rates, soil conditions, salinity and consequent leaching requirements and the
method of irrigation.
Table 25 sets out typical figures for the maximum water required for mature planting in the
summer based on automatic or semi-automatic drip irrigation systems. Demands would
increase markedly if non-automatic irrigation were employed during daylight hours when
evaporation rates are very high. The figures given do not include for leaching.
Further details of planting requirements are given in SP-1279-Q Specification for Civil &
Building Construction – ‘Landscaping Works’.
Table 25: Typical Irrigation Water Demands
Plant Type
Irrigation demand
Large trees (25 m2 canopy)
80 litre/tree/day
Small trees (10 m2 canopy)
40 litre/tree/day
Shrubs
16 litre/shrub/day
Hedges
12 litre/m/day
Ground cover
16 litre/m2/day
Grass
10 litre/m2/day
2.17.8.2 System Components
Typically, an irrigation system comprises the following components.
System
1. Head works
Components
:
Irrigation water storage
Distribution pumps
Filters
Control panel
2. Primary Distribution
:
Ring mains
Washouts
Sub mains
Pressure regulators
Isolating valves
(Contd.)
June 2004
Page 84
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
System
Version 1.0
Components (Contd.)
3. Secondary Distribution
:
Sub mains
Zone control, valves
Laterals
Spray sprinklers
Drip feed emitters
2.17.8.3 Storage
TE should be held in storage tanks similar to what is described in section 2.17.1.4. For large
TE irrigation systems, it may be preferable to provide more than one tank, strategically
located. Tanks should be sized to hold two days demand.
Storage tanks for TE shall be identifiable as not containing drinking water. Signage should
be in Arabic and English and the tanks should be painted green (even if they are constructed
of concrete).
2.17.8.4 Pumping & Filtration
Systems should be designed to operate 8 h a day in two equal periods, morning and evening.
A run and a standby pump and pressure vessel should be provided together with a stainless
steel core filter with a fine-hole element.
Pump power and auto-changeover control should normally be incorporated in a main Motor
Control Panel such as that provided for a sewage treatment plant. Pump auto-start should be
initiated by a relay in the Irrigation Control Panel described in section 2.17.8.5.
2.17.8.5 Control Systems
External irrigation control systems should comprise electro-mechanical zoned control panels
and zone solenoid valves. Controls for local small irrigation systems, such as those in
Company residences, may comprise similar solenoid valves controlled by a local timer.
Drip systems generally operate best under pressure of 1 to 3 bars. Pressure regulators,
before the zone solenoid valves, may be required to maintain these limits.
2.17.8.6 Pipe work Identification
TE irrigation water pipe work shall be pigmented green to distinguish from PW.
2.17.8.7 Sprinklers
Since spray sprinklers normally require PW irrigation (refer section 2.17.8.), and incur
higher evaporation losses compared with drip emitters, their use should be avoided where
possible. However, sprinklers should be used for lawn irrigation since emitter systems often
leave blemishes.
2.17.8.8 Emitter Allocations
Table 26 sets out typical emitter allocations for different plants, designed to apply the
quantities of water given in Table 25.
SP-1275
Page 85
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 26: Typical Emitter Allocations
Plant type
2.17.9
No of Emitters
Size
Large trees (25 m2 canopy)
5 each
8 litres / hour
Small trees (10 m2 canopy)
5 each
4 litres / hour
Shrubs
2 each
4 litres / hour
Hedges
3 per m
2 litres / hour
Ground cover
2 per m2
4 litres / hour
Swimming Pools
For Swimming Pools refer SP-1280 Specification for Swimming Pools – ‘Design &
Construction Guidelines’.
2.18
Sewage Treatment
Installation shall comply with the regulations of the Ministry of Regional Municipalities and
Environment – MRME – which will normally require an Environmental Impact Statement.
The Company focal point for liason with the MRME is the Environmental Advisor,
Corporate HSE department.
This section primarily covers treatment of domestic, biodegradable, sewage. The treatment
and controlled disposal of industrial, non-biodegradable, waste shall be determined in
conjunction with the Company in each case. The preferred process shall be by sewage
treatment plant with all the treated effluent used for irrigation purposes. For temporary
facilities, facultative ponds may be provided. In remote locations, with population
equivalent up to 100, septic tanks with soakaways may be provided, subject to Company
approval. In specific cases, holding tanks and sludge gulpers may be appropriate. For very
low population equivalents, chemical toilets may be appropriate.
The following Company Standards Drawings relate to sewage treatment systems.
STD-2-1030: Typical Manhole Details
STD-2-1033: Septic Tanks
STD-2-1034: Soakaways
STD-2-4025: Hydrocarbon Disposal Pit
June 2004
Page 86
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.18.1
Version 1.0
Location of STP
The location of sewage treatment plant should take the following factors into account.
2.18.2
-
Adjacent accommodation (minimum separation of 100m)
-
Prevailing wind direction
-
Availability and cost of land
-
Minimised pumping costs
-
Future extension.
Pollution Load
Treatment plant throughout and peak flows should be determined as detailed in section
2.17.4.1.
In the absence of definitive data, a biochemical oxygen demand (BOD) of 65 gm/capita/day
should be used.
2.18.3
Sewage Treatment Plant
Treatment should be by the activated sludge process with extended coarse bubble aeration,
chlorination and tertiary filtration, should be collected in a holding tank, and be used for
irrigation purposes. Water retaining structures of epoxy painted reinforced concrete, above
ground, should be preferred.
Control panels, pumps, filters and blowers should be housed in a naturally ventilated block
work with a telephone and external visual fault alarm.
An overflow pond should be provided for start-up, while process biology is being
established, and for maintenance purposes. Sludge should be collected in drying beds.
Potable water should be provided to a hand-wash trough and to a shower Hose bib taps,
which may supply treated effluent, should be provided at strategic locations for general
cleaning purposes. Treated effluent outlets shall be labelled “NOT DRINKING
WATER”, in Arabic and English.
Provision should be made for maintenance vehicle access and the whole of the sewage
treatment area should be secured within a Type of C fence. Photocell activated external
lighting should be provided around the main plant.
The sewage treatment plant should include, but not be limited to, the following components.
System
Component
1. Inlet works:
Will include a pumping station, which can be sized to
act as a raw sewage holding/balancing tank, to even
out the peak flow and prevent shock loading rake
screen.
2. Aeration tank:
Sized for a minimum 24 h retention at DWH + 500
mm freeboard transfer float.
(Contd.)
SP-1275
Page 87
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
System
3. Sedimentation tank:
Component (Contd.)
Sized for minimum 6 hr retention at DWF.
Hopper bottom for sludge collection,
Airlift pumps for sludge transfer and removal.
Scum baffle weir plate.
4. Chlorination chamber:
5. Access walkway:
Sized for minimum 1 hr retention at DWF.
Chlorination by “liquid“ chlorine injection or equal
and approved by the Company. Tablet dispenser not
recommended.
Flush with tank rim.
Around perimeter of combined treatment tanks
Across settling tank
Rigid handrail (extn), removable chain handrail (intrn)
caged access ladder
Walkway lighting
6. Tertiary filtration:
Duty and standby pressure type multi-media filters
Duty and standby filter service pumps.
Dedicated backwash pump
Each sized for a minimum 2 x DWF
7. Controls:
Common programmable logic control
Staggered motor start
Duty/standby auto –change
Auto-reset
Visual fault alarm
8. Flow measurement:
On raw sewage at inlet and treated effluent water at
outlet.
9. Test kit:
Dissolved oxygen
PH
Chlorine
Measuring cylinders
(Contd.)
June 2004
Page 88
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
System
Version 1.0
Component (Contd.)
9. Test kit (contd.)
BOD5 should normally be measured at the Company facilities
10. Treated effluent
Storage tank:
Sized for a minimum 48 h retention at DWF
The sewage treatment process and control philosophy should be agreed with the Company
during the preliminary design of each plant.
2.18.4
Treated Effluent Standard
Sewage treatment plant shall comply with the regulations of the Ministry of Regional
Municipalities and Environment Table 27 gives current requirements in mg.l or ppm (unless
otherwise stated). For definition of A and B, refer Table 28.
Table 27: Treated Effluent Standards – Maximum Quality Limits
Parameter
Standards (See Table 28)
A
B
15.000
20.000
150.000
200.000
15.000
30.000
Total Dissolved Solid (TDS)
1500.000
2000.000
Electrical Conductivity (E C) (micro S./ cm)
2000.000
2700.000
10.000
10.000
6-9.000
6-9.000
Aluminium (as Al)
5.000
5.000
Arsenic (as As)
0.100
0.100
Barium (as Ba)
1.000
2.000
Beryllium (as Be)
0.100
0.300
Boron (as B)
0.500
1.000
Cadmium (as Cd)
0.010
0.010
650.000
650.000
Chromium (as Cr)
0.050
0.050
Cobalt (as Co)
0.050
0.050
Copper (as Cu)
0.500
1.000
BOD (Biochemical Oxygen Demand –
5d@200C
Chemical Oxygen Demand (COD)
Suspended Solids (SS)
Sodium Absoption Ration (SAR)*
pH (within range)
Chloride (as Cl)
(Contd.)
SP-1275
Page 89
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 27: Treated Effluent Standards – Maximum Quality Limits (contd.)
Standards (See Table 28)
Parameter
A
June 2004
B
Cyanide (total as CN)
0.050
0.100
Fluorine (as F)
1.000
2.000
Iron (total as Fe)
1.000
5.000
Lead (as Pb)
0.100
0.200
Lithium (as Li)
0.070
0.070
Magnesium
150.000
150.000
Manganese
0.100
0.500
Mercury
0.001
0.001
Molybdenum
0.010
0.050
Nickel
0.100
0.100
Nitrogen: Ammonical (as N)
5.000
10.000
Nitrogen: Nitrate (as NO3)
50.000
50.000
Nitrogen: Organic (Kjeldahl) (as N)
5.000
10.000
Oil and Grease (total extractable)
0.500
0.500
Phenols (total)
0.001
0.002
Phosphorus (total as P)
30.000
30.000
Selenium
0.020
0.002
Silver
0.010
0.010
Sodium
200.000
300.000
Sulphate
400.000
400.000
Sulphide
0.100
0.100
Vanadium
0.100
0.100
Zinc
5.000
5.000
Faecal Coliform Bacteria (per 100 mm).
200.000
1000.000
Viable Nematode Ova (per litre).
<1.000
<1.000
Page 90
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 28, below, provides details of the re-use of wastewater from a sewage treatment plant.
Wastewater quality shall at all times be within the limits that are set out in Table 27.
Table 28: Treated Effluent Re-Use – Areas of application of Standards A and B
(see table 27)
Area
A
B
(For effluent standard refer Table 27)
Crops
Grass &
Ornamental Areas
2.18.5
Vegetables likely to be eaten raw.
Vegetables to be cooked or
processed.
Fruit likely to be eaten raw and
within 2 weeks of any irrigation
Fruit if no irrigation within 2
weeks of cropping. Fodder,
cereal and seed crops.
Public parks, Hotel, Lawns
Recreational Areas.
Pastures.
Areas with public access. Lakes
with public contact (except places
which may be used for praying and
hand washing).
Areas with no public access.
Aquifer Recharge
All controlled aquifer recharge.
Method of
Irrigation
Spray or any other method of arial irrigation not permitted in areas
with public access unless with timing control.
Any other Re-use
Applications
Subject to the approval of the Ministry.
Facultative Ponds
Facultative Ponds shall require special permit from MRME and PDO Corporate HSE
department. All Facultative pond shall be lined.
Facultative ponds should be sized on the basis of 2 months holding excluding losses. The
maximum holding level should be at a depth of 800 mm to achieve a reasonable balance of
aerobic and anaerobic action.
Bunds should be constructed of late-rite fine grade, maximum 40µm, in layers of 150 mm,
well compacted up to 95% modified AASHTO. The internal bund gradient should be 1:1.5
maximum, top bund widths should be 1000 mm minimum and the external bund gradient
should be 1:2 maximum. The external bund face may have riprap. The height of the bund
should be 1200 mm above the floor of the pond.
The whole of the evaporative pond area should be secured within a Type G fence.
2.18.6
Septic Tanks
The design of septic tanks with soakaways should comply with the Company Standard
Drawing listed in section 2.18.
SP-1275
Page 91
June 2004
Version 1.0
2.18.7
Specification for Civil & Building Works – Design Criteria Manual
Hydrocarbon Disposal Pits
The design of pits for the collection of hydrocarbon waste shall comply with the Company
Standard Drawing STD-2-4025 and other standards listed in section 2.18.
2.19
Electrical Services
This section covers the design of building services low voltage (LV), 415V/3ph/50Hz,
electrical distribution installations and extra low voltage (LLV), 30V and below,
instrumentation installations. High voltage (HV), rated above 415V, installations are not
part of the building services design scope nor are LV vital supply installations. The scope
of, and interface between, LV and HV electrical designs shall be established with the
Company at preliminary design stage. Electrical building services installations include:
-
LV Electrical Supply
-
Small Power
-
In-door Lighting
-
Emergency Lighting
-
Outdoor Lighting
-
Fire Detection and Alarm
-
Lightning Protection
-
Telecoms
-
Datacoms
-
Television and Video
-
Audio
-
Nurse Call
The entire electrical installation shall be designed to be suitable for the environment and
climatic conditions prevailing in the Sultanate of Oman.
The following Company Standard Specifications and Drawings relate to LV electrical
distribution systems shall be applicable for the Electrical services.
June 2004
IP 15
:
Institute of Petroleum Model Code of Safe Practice Part
15 - ‘Area Classification Code for Petroleum Installations’
SP-1099
:
Specification for Electrical Installation Practice
SP-1104
:
Specification for Electrical Safety Rules
SP-1105
:
Specification for Electrical Standard Drawings List
SP-1110
:
Specification for Electrical Supplies to Mobile Camps
SP-1111
:
Specification for Temporary Electrical Supplies
Page 92
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.19.1
Version 1.0
DEP 33.64.10.10-Gen
:
Electrical Engineering Guidelines
DEP 80.00.10.10 Gen
:
Area classifications (Amendments / Supplement to IP 15)
Electrical Supply
Building services electrical supply design should normally comprise input to the design of
the LV main switchboard and earth bar, which should be part of the HV design scope,
together with the design of the LV electrical installation from the LV main switchboard
outgoings and the earth bar.
Vital service supply by no-break set (UPS) or emergency generator set shall not be part of
building services design, which shall be confined to local battery backup packages.
2.19.1.1 Rated Voltage & Frequency
Electrical equipment shall be selected to comply with the following rated voltages and
frequencies.
415V/3ph/50Hz, 240V/1ph/50Hz
2.19.1.2 Loads
The electrical design shall include a schedule of connected and instantaneous loads, which
shall be updated during the design process to form the basis of the power supply and
distribution capacity. The figures given in Table 29 may be used for estimating purposes.
The power supply and distribution system should be designed with minimum 25% spare
capacity to accommodate changes and future expansion.
The overall system power factor, inclusive of reactive power losses in transformers and
distribution system equipment, shall not be less than 0.8 lagging at rated design load.
2.19.1.3 Voltage Drop
The voltage drop in cables between LV main switchboard outgoings and consumer terminals
shall not be more than 5%, based on continuous maximum current loading and rated voltage.
Moreover, during the starting and stopping of heavy loads, such as chiller compressors, the
transient voltage depression at the terminals of any motor shall not be more than 20% of the
rated equipment voltage.
SP-1275
Page 93
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 29: Estimated Electrical Loads
Facility
Maximum Demand
PDO Permanent Camp
Accommodation
4.5 kVA/unit
Laundry / Messing
1.0 kVA/person
Cinema (open air)
4.8 kVA
Clinic
18.0 kVA
Football Pitch
36.0 kVA
Fuel Station
21.0 kVA
Guard House
10.0 kVA
Mosque
14.5 kVA
Shop
10.0 kVA
Squash Court
9.0 kVA
Tennis Court
18.0 kVA
PDO Temporary Camp
Accommodation
3.7 kVA/unit
Laundry / Messing
0.7 kVA/person
Contractor Facility
Accommodation
3.7 kVA/unit
Laundry / Messing
0.4 kVA/person
Workshop (open sheds)
30.0 kVA/unit
Broad brush
30.0 VA/m2
2.19.1.4 Underground Cable De rating
While the sizing of above ground cables shall be in accordance with the IEE Regulations
(refer section 1.4.3 for the IEE), a basic de-rating factor, depending on cable size and type,
shall be used for underground cables. The figures given in Table 30 shall be used a catchall
factors.
A further de-rating factor shall be applied relating to the grouping of cables.
June 2004
Page 94
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 30: Overall De rating Factors for Underground LV Cables (Note: Not
applicable to cable groups)
Cable
Single Core
Multi Core
De rating Factor
Up to 150 mm2
0.61
185 – 400 mm2
0.60
above 500 mm2
0.59
Up to 16 mm2
0.65
25 – 150 mm2
0.63
above 185 mm2
0.62
2.19.1.5 Underground Cables
LV cables sizes 16 mm2 and above shall be copper conductor, cross-linked polyethylene
insulated, steel wire armoured, polyvinyl chloride sheathed (XLPE/SWA/PVC).
LV cables sizes 2.5 mm2 to 10 mm2 may be PVC insulated, copper braid armoured, PVC
sheathed, (PVC/SWB/PVC).
2.19.1.6 Earthing
Earthing systems shall be provided in accordance with SP-1099 Specification for Electrical
Installation Practice section 2.3, ‘Earthing Systems’. The system of earthing shall be TN-S,
that is, protection against indirect contact obtained by earthed equipotential bonding and
automatic disconnection of supply.
Minimum ring cable size shall be 70 mm2, minimum radial cable size shall be 25 mm2.
2.19.2
Small Power
Appendix L includes the following small power requirements relating to Company facilities.
SP-1275
-
Power outlets
-
Shaver outlets
-
Hand dryers
-
Fire alarm systems
-
Airconditioners
-
Ventilation fans
-
Water heaters
-
Drinking water coolers
-
Cookers
Page 95
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
-
Refrigerators
-
Insectocutors
SP-1099 Specification for Electrical Installation Practice, gives the Company Electrical
Standards for the following.
-
Applicable Standards, Specifications & Codes
-
General Requirements
-
Cable Installation
-
Earthing Systems
-
Hazardous Area
-
Equipment Installation
The Company Electrical Standard Drawings lists are contained in SP-1105 Specification for
Electrical Standard Drawings List.
2.19.2.1 Power Supply
Electrical designs shall include distribution board and feeder pillar single line diagrams
showing:
-
Board reference, area served and location.
-
Incoming feeder cable size and reference.
-
Circuit MCB/RCD protection sizes.
-
Sub circuit ways, outgoing feeders, MCB/RCD/ELCB protection ratings, wire sizes
and sub areas served.
-
Sub circuit loads and total connected load per phase.
-
Min 25% spare outgoing feeders (refer section 2.19.1).
Distribution boards shall incorporate residual current type earth leakage circuit breakers to
provide discriminatory protection as follows.
-
Distribution Board feeders: 100mA
-
Socket outlet ring sub circuit: 30mA
Distribution boards shall not be located within toilets or ablutions. Neither power outlet nor
switch shall be located within 1 m of a water source, or under a water pipe.
A means of identifiable local isolation shall be provided for each connection to electrical
equipment.
2.19.2.2 Power Consumption
All single-phase loads shall, as far as is practically possible, be evenly distributed over the
phases.
June 2004
Page 96
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
2.19.2.3 Voltage Drop
Refer section 2.19.1.3 of this specification for voltage drop.
2.19.2.4 Cables
Armoured cables shall be as described for underground cables in section 2.19.1.4.
Cables in conduit or trunking shall be copper conductor, PVC insulated. Minimum size
shall be 2.5 mm2.
2.19.2.5 Conduit & Trunking
PVC conduit shall be used only inside buildings in locations not liable to mechanical
damage. Only GI conduit shall be used for external work. Minimum conduit size shall be
20 mm. Design drawings should indicate the number and use (line, neutral and protective
earth) of cables in each conduit.
GI trunking should be used instead of multiple conduit runs. Trunking that is intended for
the accommodation of different services shall be divided into separate compartments to
provide complete cable separation.
Steel conduit and trunking shall be electrically and mechanically continuous throughout.
2.19.2.6 Earthing & Bonding
Earthing and bonding installations shall be shown on the electrical design drawings. All
metallic electrical equipment enclosures shall be earthed as described in section 2.19.1.6.
Exposed metalwork of all conduits, trunking, ducts, sheaths and armouring of cables, and all
fixed metalwork which is in reach of electrical apparatus, shall be bonded and earthed. Such
other fixed metalwork required, to be bonded and earthed shall include exposed metal pipes,
sinks and tanks.
The earth bonding connection to any water services entering a building shall be as near as
possible to the point of entry, after the isolation valve.
Minimum cable size for bonding metal pipes, sinks and the like shall be 6 mm2.
2.19.3
Indoor Lighting
General requirements for the illumination of Company facilities are given in Appendix L.
Where requirements are not listed in Appendix L, illumination levels should follow the
standards listed below: Indoor lighting design should comply with the recommendations of
the following.
BS 8206: Code of Practice for Artificial Lighting.
BS ISO 8995: Lighting of Indoor Work Places
CIBSE: Code of Interior Lighting.
SP-1275
Page 97
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.19.3.1 Luminaries
As well as first cost, lamps should be selected for long life, giving reduced maintenance and
replacement costs, and low energy consumption. Where special requirements for colour
rendering exist, they should be met. Incandescent lamps should only be used for decorative
purposes. Low pressure sodium discharge lamps should not be used since they represent a
fire hazard in the event of breakage. Table 31 gives typical lamp selections for standard
applications.
Table 31: Typical Indoor Lamp Selection
Application
Lamp
General
Fluorescent
Types 2D,PL,SL,TL
Industrial
Fluorescent
Type TL, white
High bay
HP discharge
Type MBF
Fluorescent
Ex e
HP discharge
Ex d
Zone 1 & 2
Luminaries located in ablution and toilet areas shall be protected to IP54, in special cases,
for example, where cleaning is by water hose, IP55 may be required. Light switches in
ablution and toilet areas shall be pull cord operated.
Luminaries, surface mounted on ceilings of combustible material, shall be offset by 50 mm.
2.19.4
Emergency Lighting
Emergency lighting systems cover escape route lighting, exit sign indication and vital
lighting.
The function of emergency lighting shall be to:
-
Indicate the escape routes clearly and unambiguously.
-
Provide illumination along such routes to allow safe movement towards and through
the exits provided.
Ensure that the fire alarm call points and fire fighting equipment provided along escape
routes can be readily located.
-
Provide illumination to a facility which, when failing in operation, can cause an
unsafe condition or can result in major damage.
Escape route and exit lighting shall be located at each exit door, emergency exit door, and
where necessary to identify potential hazards, that is,
-
At corridor intersections
-
At corridor changes of direction
-
At stair flights
-
At hazardous changes in floor level.
June 2004
Page 98
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
General requirements for escape route and exit lighting are given in Appendix L.
An un-switched power supply shall be provided to keep the battery backup packs on charge,
and to sense mains failure.
Emergency lighting system design, installation and implementation shall confirm to the
requirements of BS 5266, Emergency Lighting.
2.19.4.1 Escape Route Lighting
Fixed escape route lighting shall actuate within 5 sec of normal lighting failure.
Illumination should be not less than 0.2 lux.
Light fittings should be non-maintained, self contained, slave luminaries, operated by a DC
battery which shall be capable of 3 hour running time. Alternatively, battery backup
conversion kits may be used on selected lamps to enable fluorescent luminaries to operate as
emergency lighting.
2.19.4.2 Exit Lighting
Exit light fittings should be maintained, self-contained slave units, with 3 hour battery
backup.
EXIT lettering, in Arabic and English, shall be green on a white background.
2.19.4.3 Vital Lighting
In cases where vital lighting is required for operational purposes, battery backup conversion
kits should be used in a proportion of the standard light fittings.
Appropriate vital illumination levels should be calculated in each case, but in the absence of
definitive data, the number of vital lamps as part of the total number of lamps may be
determined using Table 32.
Table 32: Typical Vital Lighting Requirements
Area
2.19.5
Vital Lamps
Administrative Area
5%
Computer Room
10%
Control Room
50%
Field Auxiliary Room
30%
Switch House
30%
Utility Area
20%
Clinic Ward
25%
Outdoor Lighting
Outdoor lighting installations shall comply with SP-1099 Specification for Electrical
Installation Practice section 2.5.5 Lighting.
SP-1275
Page 99
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
2.19.5.1 Lighting Fixtures
Outdoor lighting fixtures shall be located a minimum distance of 0.5 m from the face of
roadway kerbs and a minimum 1.5 m from the face of car park kerbs.
Polycarbonate diffusers shall not be used unless they are certified as UV resistant.
Table 33 includes preferred lamp types for outdoor lighting applications.
2.19.5.2 Illumination Levels
Table 33 also gives minimum maintained illumination levels for outdoor lighting.
Table 33: Typical Outdoor Lighting Lamps & Illumination Levels
Application
2.20
Lamp Type
Illumination
Football Pitch
SON
150 lux
Lay down Area
MBF
50 lux
Operational Area
MBF
10 lux
Roadway
MBF
10 lux
Tennis Court
SON
200 lux
Volleyball Court
SON
200 lux
Walkway
MBF.2D
10 lux
Workshop
MBF
50 lux
Fire Detection & Alarm
The Company fire detection and alarm design parameters are set out in SP-1075
Specification for Fire, Explosion & Risk Management. General requirements are given in
Appendix L. For the fire detection and alarm equipment and materials shall comply with
the requirements as given in SP-1285-D Specification for Civil & Buildings Utility Services
– ‘Fire Protection Works’. The above are considered as being the minimum standard,
however each project shall be reviewed for particular requirements at the design stage.
2.20.1
Operational Criteria
Power supplies for fire detection and alarm systems shall include a standby battery and
automatic charger, and shall be designed so as not to become inoperative in the event of
failure of the power supply. In general, stand by power supply shall be designed in
accordance with DEP 33.65.50.31-Gen. ‘Static DC Uninterruptible Power Supply (DC UPS)
Units’.
June 2004
Page 100
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
The main supply feeding the local annunciator panel shall be connected to a dedicated
circuit way on a distribution board which is part of the main switch panel. No other service
shall be connected to this circuit way and, where MCBs are used, the one serving the fire
protection system shall be coloured red and labelled, white/red/white, FIRE ALARM-DO
NOT SWITCH OFF (consideration should be given to providing a key switch; the key
being held by the fire officer). The main supply cable should follow the least hazardous
route available.
The battery backup power supply shall provide at least 24-hour of system operation plus 15minute of full alarm.
The battery charger shall be capable of restoring the battery to full capacity within 8 hours
from fully discharged condition. Fault monitoring and alarm indication shall be provided
for:
a.
Main power failure by red light without opening the panel
b.
Battery power failure indication
c.
Charger output failure indication
A closed circuit principle shall be used, and all wiring shall be continuously monitored such
that any of the following conditions cause a FAULT indication at the local annunciator
panel.
a.
Short circuit fault, indicating the affected zone.
b.
Open circuit fault, indicating the affected zone.
c.
Earth fault.
d.
Power supply fault.
The control circuitry shall be so arranged such that none of the above conditions cause the
fire alarms to sound. Monitoring of the system shall be intrinsic in the control circuit design
and shall be automatic in operation, and shall not require manual operation of switches or
other apparatus.
Large buildings shall be suitably zoned in accordance with BS 5839 Fire detection and
Alarm system for buildings.
The local annunciator panel shall be located at the building main entrance and shall be
visible from outside the building. The panel shall indicate zone FAULT, and zone FIRE
which shall be activated by manual call points and automatic detection systems. Activation
of one zone alarm shall operate audible alarms on all zones. Activation of one zone alarm
shall also shutdown airconditioning systems in all zones except for systems that do not cause
the spread of smoke outside the area of the fire. FAULT and FIRE alarm shall be relayed
to a central mimic panel, at a location specified by the Company.
2.20.2
Cables
Fire alarm and detection cables shall be segregated from other electrical services, including
those of similar voltage and frequency.
Cables shall be protected by armour, conduit or trunking. Buried cables shall have steel
wire armour and cables encased within building fabric may be in PVC conduit. Cables
should be exposed only in industrial applications.
SP-1275
Page 101
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Cables should be single copper conductor, minimum size 2.5 mm2 for low voltage (240v)
and minim size 1.13 mm2 for very low voltage (to 30v).
Mineral insulated cable should not normally be required for fire detection and alarm
systems.
2.21
Lightning Protection
Lightning protection requirements, if any, should be based on the factors listed below and
shall be agreed with the Company.
-
Exposure risk
-
Use of structure
-
Type of construction
-
Contents or consequential effects
-
Height of structure and degree of isolation
-
Location topography
Lightning protection system designs should follow the requirements of BS 6651, Code of
Practice for Protection of Structures Against Lightning.
2.22
Telecom Networks
The design of telephone distribution systems shall be agreed with and approved by the
Company Telecommunications Projects Department (TCT). The building services design
shall include, but not be limited to, allocation of reserved rights of way, external layouts,
internal layouts and schematics. A key sheet may also be required.
The project scope of work, and the interface between the building services contractor and
the telecoms contractor, shall also be agreed with TCT. Normally, this will exclude the
pulling and the terminations of external telephone cable but will include the distribution
points, telephone outlets, and terminations at the distribution points, conduit and wiring, and
terminations at the outlets.
Company supplied materials, which are free issue to the building services contractor, shall
be specified by TCT. Normally, they will include:
-
Underground ducting
-
Distribution boxes
-
Manhole accessories
Underground cables and handsets are installed by Telecom Specialist Contractors.
General requirements for telephones are given in Appendix L.
The Company Standards for cable laying, manhole construction, duct installation and for
installation within buildings is given in PDO-ERD-71-01, Installation of Underground and
Internal Telephone Cable Networks.
June 2004
Page 102
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
2.22.1
Version 1.0
Data Communications Networks
The scope of building services design should normally be confined to the provision of
distribution ways, conduit, trunking or trays, and outlet points together with spatial
requirements for equipment.
The scope and design shall be agreed with approved by the Company Telecommunications
Department (TCT).
2.22.2
Television & Video Networks
Normally, provision for TV shall be confined to built-in conduit and outlet points.
However, in cases where reception for individual buildings is not possible, a central antenna
system may be provided. For camps in the Oman Interior, a VCP system, as well as a
satellite dish, may also be included.
Concept design shall be part of the building services scope with detail design provided by a
Specialist Vendor. Both concept and detail design shall be subject to Company approval.
General requirements for TV outlets are given in Appendix L.
2.22.3
Audio Systems
Concept and detail design scopes shall be as described in section 2.22.2.
2.22.4
Nurse Call Systems
Concept and detail design scopes shall be as described in section 2.22.2.
requirements for Nurse Call systems are given in Appendix L.
SP-1275
Page 103
General
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendices
Appendix A: Glossary of Definitions & Abbreviations
Appendix B: Weights of General Building Materials
Appendix C: Typical Live Loads & Finishes
Appendix D: Wall Finishes
Appendix E: Floor Finishes
Appendix F: Skirting
Appendix G: Ceilings
Appendix H: Door Types
Appendix I: Window Types (Glazing)
Appendix J: Ironmongeries
Appendix K: Internal Environment Design Criteria
Appendix L: Electrical Requirements
Appendix M: SP User Comment Form
June 2004
Page 104
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix A: Glossary of Definitions & Abbreviations
For the purposes of this document, the following definitions, terminology and abbreviations
shall apply.
A.1
General Definitions & Terminology
Shall
:
The word 'shall' indicates a requirement
Should
:
The word 'should' indicates a recommendation
the Company
:
Petroleum Development Oman L.L.C.,
the
Contractor
Manufacturer
:
The party with which the Company has entered into a Contract
:
A Party responsible for the manufacture of equipment and services to
perform the duties specified by the Consultant or the Company.
Vendor /
Supplier:
:
A party responsible for the supply of equipment, materials or product
related services in accordance with the purchase order issued by PDO
or it’s nominated purchasing office.
Local Agent
:
An authorised agent of a Manufacturer in the Sultanate Of Oman who
can supply the product and services.
National
Product
:
A product defined as a National Product, in origin manufactured in
the Sultanate Of Oman as per the General Conditions of Contract.
GCC Product
:
A product defined as a GCC Product, in origin manufactured in GCC
country as per the General Conditions of Contract.
Works
:
The permanent Works to be executed and maintained in accordance
with the contract together with all temporary works of every kind
required in or about the execution or maintenance of the Works.
Workshop
:
A defined place, approved by the Company, where the Contractor
executes fabrication works.
Worksite
:
The land and other places on, under, in or through which the Works
are to be executed.
the User
:
The Company, and/or Consultant, designate using this document.
Temporary
Structures
:
Any member or structure which needs to withstand loads and forces
of a temporary nature, such as scaffolding, erection bracing, steel
props, commissioning facilities, etc. The word ‘temporary’ shall be
understood as a short period, limited to maximum of 2 years.
Semi
Permanent
Structures
:
Any member or structure which needs to withstand all meteorological
conditions, loads and forces of a permanent nature, but designed for a
short period. The word ‘semi-permanent’ shall be understood as a
relatively short period, limited to maximum of 4 years.
:
Any member or structure which needs to withstand all meteorological
conditions, loads and forces of a permanent nature, but designed for a
long period. The word ‘permanent’ shall be understood as a
relatively long period, say 30 years or more.
Permanent
Structures
SP-1275
Page 105
June 2004
Version 1.0
A.2
Specification for Civil & Building Works – Design Criteria Manual
Abbreviations
The following abbreviations are used in this document.
AASHTO
:
American Association of State Highway and Transport Officials
ACI
:
American Concrete Institute
ACV
:
Aggregate Crushing Value.
ASME
:
American Society of Mechanical Engineers
ASNT
:
American Society Non-Destructive Testing
ASTM
:
American Society for Testing and Materials
AWS
:
American Welding Society
AWC
:
Asian Water Closet
B
:
Bottom
BLK
:
Block work
BOB
:
Bottom of Base
BOP
:
Bottom of Pipe
BS
:
British Standard
BWK
:
Brickwork
CBR
:
California Bearing Ratio
CIBSE
:
Chartered Institute of Building Services Engineers
CP
:
Code of Practice
CWS
:
Code Water Service
CFDH
:
Corporate Functional Discipline Head
DB
:
Dry Bulb Temperature
DEP
:
Design and Engineering Practice (SIEP / Shell GSI Standard)
DFT
:
Dry Film Thickness
DIA
:
Diameter
June 2004
Page 106
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
A.2 Abbreviations (contd.)
DIN
:
Deutsche Institute for Normung (West German Institute for
Standardisation)
DRG
:
Drawing
DWF
:
Dry Weather Flow
EF
:
Each Face
EW
:
Each Way
ELCB
:
Earth Leakage Circuit Breaker
EPC
:
Engineering, Procurement & Construction
ERD
:
Engineering Reference Document
ESD
:
Emergency Shutdown
EWC
:
European Water Closet
EXL
:
Existing Level
FF
:
Far Face
FFL
:
Finished Floor Level
FS
:
Full Size
GCC
:
Gulf Cooperation Council
GI
:
Galvanised Iron
GRC
:
Glass Reinforced Concrete
GRG
:
Glass Reinforced Gypsum
GRE/GRP
:
(Fibre) Glass Reinforced Epoxy or Plastic
HDPE
:
High Density Polyethylene
HOR
:
Horizontal
HP
:
High Pressure
HW
:
Hardwood
HSE
:
Health, Safety and Environment
HV
:
High Voltage
IEE
:
Institution of Electrical Engineers
(Contd.)
SP-1275
Page 107
June 2004
Version 1.0
A.2
Specification for Civil & Building Works – Design Criteria Manual
Abbreviations (contd.)
JE
:
Junior Employee
JS
:
Junior Staff
LPG
:
Liquid Petroleum Gas
LV
:
Low Voltage
MAF
:
Mina Al Fahal (PDO Coastal Centre of Operations)
MAX
:
Maximum
MBF
:
High Pressure Mercury Discharge
MCB
:
Miniature Circuit Breaker
MIN
:
Minimum
MMMF
:
Man Made Mineral Fibres
MOC
:
Ministry of Communications
MRME
:
Ministry of Regional Municipalities & Environment
MPN
:
Most Probable Number
N
:
Neutral
N/A
:
Not Applicable
NF
:
Near Face
No.
:
Number
NTS
:
Not to Scale
OPC
:
Ordinary Portland Cement
PE
:
Protective Conductor
PDO
:
Petroleum Development Oman LLC
ppm
:
Parts per Million
PVA
:
Polyvinyl Acetate
PVC
:
Polyvinyl Chloride
PW
:
Potable Water
RC
:
Reinforced Concrete
RCD
:
Residual Current Device
(Contd.)
June 2004
Page 108
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
A.2
SP-1275
Version 1.0
Abbreviations (contd.)
SELV
:
Safe Extra Low Voltage
Shell GSI
:
Shell Global Solutions International B.V.
SIEP
:
Shell International Exploration and Production B.V.
SIC
:
Shell International Chemicals B.V.
SIS
:
Sveriges Standard
Institute)
SON
:
High Pressure Sodium Discharge
SPP
:
Sulphonate Petroleum Product
SP
:
Specification
SRD
:
HSE (Safety) Reference Document
SS
:
Senior Staff
SSL
:
Structural Slab Level
STD
:
Standard
SWA
:
Steel Wire Armour
SWB
:
Steel Wire Braid
T
:
Top
TE
:
Treated Effluent
TN-S
:
Separate N and PE Conductors
TOC
:
Top of Concrete
TOG
:
Top of Grating
TOS
:
Top of Steel
UPS
:
Uninterrupted Power Supply
UPVC
:
Unplasticised Polyvinyl Chloride
UV
:
Ultra Violet
VERT
:
Vertical
WB
:
Wet Bulb Temperature
Page 109
Iseringskommision
(Swedish
Standards
June 2004
Version 1.0
A.3
Specification for Civil & Building Works – Design Criteria Manual
Abbreviations for Building Types
The abbreviations used in this document for different building types are given in Table 34.
Table 34: Building Type Codes
Code
Building or Area
ABL
:
Ablutions
ABL/1
:
Ablution Block – SS
ABL/2
:
Ablution Block – JS
ABL/3
:
Ablution Block – JE
ACC
:
Accommodation
ACC/1
:
Accommodation – SS House
ACC/2
:
Accommodation – SS Bachelor Flats
ACC/3
:
Accommodation – SS Rooms
ACC/4
:
Accommodation – JS Units
ACC/5
:
Accommodation – JE Units
AIR
:
Air Terminal
AIR/1
:
Air Terminal – Building
AIR/2
:
Air Terminal – Sunshade
ANC
:
Ancillary Building (Catering / Laundry)
ANC/1
:
Ancillary Building – Main Camps
ANC/2
:
Ancillary Building – Satellite Camps
(Contd.)
June 2004
Page 110
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 34: Building Type Codes (contd.)
Code
Building or Area
CON
:
Control Building
CON/1
:
Control Building – Type 1
CON/2
:
Control Building – Type 2
CON/3
:
Control Building – Type 3
ELE
:
Electrical Facility
ELE/1
:
Electrical Installation – Substation
ELE/2
:
Electrical Installation – Switch Yard
ELE/3
:
Electrical Installation – Power Station
EXP
:
Explosives Store
FIR
:
Fire Station
FIR/1
:
Fire Station – Type 1
FIR/2
:
Fire Station – Type 2
GAR
:
Garage / Fuel Station
GAR/1
:
Garage / Fuel Station – Type 1
GAR/2
:
Garage / Fuel Station – Type 2
GAR/3
:
Garage / Fuel Station – Type 3
GUA
:
Guard House
GUA/1
:
Guard House
GUA/2
:
Sentry Box
(Contd.)
SP-1275
Page 111
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 34: Building Type Codes (contd.)
Code
Building or Area
HOS
:
Hospital / Clinic
HOS/1
:
Clinic – Type 1
HOS/2
:
Clinic – Type 2
HOS/3
:
First Aid Post
KIT
:
Kitchen (Separate Building)
KIT/1
:
Kitchen – SS
KIT/2
:
Kitchen – JS
KIT/3
:
Kitchen – JE
LAB
:
Laboratory
LAB/1
:
Laboratory – Production Chemistry
LAB/2
:
Laboratory – Geology
LAU
:
Laundry
MES
:
Mess / Canteen
MES/1
:
Mess / Canteen – SS
MES/2
:
Mess / Canteen – JS
MES/3
:
Mess / Canteen – JE
MOS
:
Mosque
MOS/1
:
Mosque – Permanent
MOS/2
:
Mosque – Prayer Shelter
(Contd.)
June 2004
Page 112
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 34: Building Type Codes (contd.)
Code
Building or Area
OFF
:
Office
OFF/1
:
Office – Solid Partitions
OFF/2
:
Office – Demountable Partitions
REC
:
Recreational Facility
REC/1
:
Recreational Facility – SS
REC/2
:
Recreational Facility – JS
REC/3
:
Recreational Facility – JE
REC/4
:
Recreational Facility – Arts & Crafts
REC/5
:
Recreational Facility – Cinema Indoor
REC/6
:
Recreational Facility – Cinema Outdoor
REC/7
:
Recreational Facility – Swimming Pool
ROS
:
Reverse Osmosis Plant (Utilities)
SCH
:
School/Training Centre
SCH/1
:
Junior School
SCH/2
:
Kindergarten
SCH/3
:
Training Centre
SHO
:
Shop
SHO/1
:
Shop – Bulk Store (Liquor)
SHO/2
:
Shop – General Store
(Contd.)
SP-1275
Page 113
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 34: Building Type Codes (contd.)
Code
Building or Area
SPO
:
Sports Facility
SPO/1
:
Sports Facility – Squash Court
SPO/2
:
Sports Facility – Sports Hall / Gym
SPO/3
:
Sports Facility – Boat Centre
SPO/4
:
Sports Facility – Golf Course
SPO/5
:
Sports Facility – Tennis / Volleyball Court
SPO/6
:
Sports Facility – Changing Rooms
SPO/7
:
Sports Facility – Sports Field
STO
:
Store
STO/1
:
Store – Edit and Seismic Tape
STO/2
:
Store – File Archives
STO/3
:
Store – Chemical
STO/4
:
Store – Core Shed
STO/5
:
Store – Loose Grain Store
STO/6
:
Store – Cold Store
STO/7
:
Store – Dry Store / Tinned Food Store
STO/8
:
Store – Gas Bottle
STP
:
Sewage Treatment Plant
TEL
:
Telecommunications Facility
TEL/1
:
Telecoms Buildings – Type A
TEL/2
:
Telecoms Buildings – Type B
TEL/3
:
Telecoms Buildings – Type C
TEL/4
:
Telecoms Buildings – Type D
(Contd.)
June 2004
Page 114
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 34: Building Type Codes (contd.)
Code
SP-1275
Building or Area
TRU
:
Transportable Unit (Cabin)
TRU/1
:
Temporary Accommodation
TRU/2
:
Temporary Offices
TRU/3
:
Temporary Store
TRU/4
:
Temporary Mess
TRU/5
:
Temporary Kitchen
TRU/6
:
Temporary Ablution
WAH
:
Warehouse / Depot
WAH/01
:
Warehouse / Depot – Non-Inflammable Material
WAH/02
:
Warehouse / Depot – Personal Effects
WAH/03
:
Warehouse / Depot – Furniture & Semi-Inflammable
WAH/04
:
Warehouse / Depot – Inflammable Material
WOR
:
Workshop
WOR/01
:
Workshop – Electrical & Air-conditioning
WOR/02
:
Workshop – Mechanical
WOR/03
:
Workshop – Instrument
WOR/04
:
Workshop – Carpentry
WOR/05
:
Workshop – Light Vehicle
WOR/06
:
Workshop – Heavy Vehicle
WOR/07
:
Workshop – Integrated
Page 115
June 2004
Version 1.0
A.4
Specification for Civil & Building Works – Design Criteria Manual
Abbreviations for Room Types
The abbreviations used in this document for different room types are given in Table 35.
Table 35: Room Type Codes
Code
Room Type
ALL
:
All rooms unless noted otherwise
BATH
:
Bathroom
BED
:
Bedroom
BAKE
:
Bakery
BAR
:
Bar
BTRY
:
Battery Room
CANT
:
Canteen
CHRM
:
Changing Room
CLNR
:
Cleaners Room
CLRM
:
Classroom
CONF
:
Conference Room
CORR
:
Corridor
CTRL
:
Control Room
CDST
:
Cold Store
DARK
:
Dark Room
DPFZ
:
Deep Freeze Store
DINE
:
Dining Room
DUCT
:
Service Duct
ELEC
:
Electrical Cupboard
ENTR
:
Entrance Hall
EQMT
:
Equipment Room
EXAM
:
Examination Room
FILE
:
Files Store
(Contd.)
June 2004
Page 116
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 35: Room Type Codes (contd.)
Code
Room Type
ICE
:
Ice Store
ISO
:
Isotope Pit
KTCH
:
Kitchen
LABC
:
Laboratory (Cores)
LABO
:
Laboratory (Oil)
LABW
:
Laboratory (Water)
LDRY
:
Laundry
LESR
:
Leisure
LBRY
:
Library
LIFT
:
Elevator
LNGE
:
Lounge/Sitting Room
MORT
:
Mortuary
OFF1
:
7 m2 Module Office
OFF2
:
10.5 m2 Module Office
OFF3
:
Drawing Office
PTRY
:
Pantry
PARK
:
Parking Bay
PRAY
:
Prayer Room
PREP
:
Food Preparation
PROJ
:
Projection Room
REC1
:
Recreation – Snooker Room
REC2
:
Recreation – Table Tennis Room
RECP
:
Reception
REDX
:
First Aid Room
RSNT
:
Restaurant
(Contd.)
SP-1275
Page 117
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table35: Room Type Codes (contd.)
Code
Room Type
SH
:
Shower
SL
:
Sluice
SHOP
:
Shop
SQCT
:
Squash Court
SERV
:
Service Room
ST/B
:
Gas Bottle Store
ST/C
:
Chemical Store
ST/D
:
Dry Store
ST/E
:
Equipment & Tools Store
ST/G
:
General Supply Store
ST/H
:
Health Dept Store (Poisons)
ST/K
:
Kitchen Consumables Store
ST/L
:
Bulk (Liquor) Store
ST/M
:
Medical (Drugs) Store
ST/O
:
Office Supplies Store
ST/P
:
Pork Products Store
ST/S
:
Secure Store
ST/T
:
Edit & Seismic Tape Store
ST/U
:
UV Shielded Store
STND
:
Stand & Wait Area
STWL
:
Stairwell
SWGR
:
Switchgear Room
TLET
:
Public Toilet
TRMT
:
Treatment Room
TV
:
TV / Video Room
(Contd.)
June 2004
Page 118
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table35: Room Type Codes (contd.)
Code
SP-1275
Room Type
UTIL
:
Utility Room
VIEW
:
Viewing Gallery
WAIT
:
Waiting Room
WARD
:
Ward
WC
:
Toilet
WKSP
:
Workshop
XRAY
:
X-Ray Room
Page 119
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix B: Weights of General Building Materials
kN/m2
Building Material
Aluminium Roof Sheeting
0.7 mm thick
Asbestos Cement Sheeting
This material shall not be used.
Asphalt – Roofing, 2 layers
19 mm thick
0.41
25 mm thick
0.58
Bitumen, built up felt roofing – 3 layers incl chippings
kN/m3
0.023
0.29
Block work (excluding weight of
mortar)
Concrete, solid,
Per 25 mm thick
0.54
Concrete, hollow,
Per 25 mm thick
0.34
Lightweight, solid,
Per 25 mm thick
0.32
Clay, solid,
Per 25 mm thick
0.45
Low density
Per 25 mm thick
0.49
Medium density
Per 25 mm thick
0.54
High density
Per 25 mm thick
0.58
Clay, perforated,
Per 25 mm thick
Low density
25% voids
0.38
15% voids
0.42
25% voids
0.40
15% voids
0.46
25% voids
0.44
15% voids
0.48
Brickwork, (excluding weight of
mortar)
Medium density
High density
(Contd.)
June 2004
Page 120
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix B: Weights of General Building Materials (contd.)
kN/m2
Building Material
kN/m3
Boards
Cork, compressed,
Per 25 mm thick
0.06
Fibre insulating,
Per 25 mm thick
0.07
Laminated blockboard,
Per 25 mm thick
0.11
Plywood,
Per 12.7 mm thick
0.09
23.55
Concrete, reinforced, 2% steel
4 mm
0.09
6 mm
0.14
Thermal insulation,
Per 25 mm thick
0.005
Acoustic insulation,
Per 25 mm thick
0.01
Glass – Clear float
Glass Fibre
Glazing, Patent 6.3 mm Glass
Lead covered bars at 610 mm
centres
0.29
Aluminium alloy bars at 610 mm
centres
0.19
Plaster
12.5 mm thick
0.22
Gypsum
9.5 mm thick
0.08
Plasterboard Gypsum
12.5 mm thick
0.11
19.0 mm thick
0.17
19 mm thick
0.10
25 mm thick
0.12
32 mm thick
0.14
Roof Boarding
Softwood rough sawn
(Contd.)
SP-1275
Page 121
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix B: Weights of General Building Materials (contd.)
Building Material
kN/m2
kN/m3
Rendering & Screed
Portland cement: sand, 1:3 mix
Per 12.5 mm thick
0.29
Concrete
Per 25 mm thick
0.58
Lightweight
Per 25 mm thick
0.32
77.22
Steel
Steel Roof Sheeting – (as laid)
0.50 mm thick
0.05
0.70 mm thick
0.07
Tiling, Roof
Clay or concrete, plain, laid to 10 mm gauge
0.62 – 0.7
0.48
Tiling, Floor Finishes
June 2004
Asphalt
3 mm thick
0.06
Clay
12.5 mm thick
0.27
Cork, compressed
6.5 mm thick
0.025
PVC, flexible
2.0 mm thick
0.035
Timber – Softwoods
Pine Spruce
4.72
Douglas Fir
4.72
Redwood
5.50
Pitch pine
6.60
Timber – Hardwood
Teak, Oak
7.07
Wood-wool Slabs
Per 25 mm thick
Page 122
0.15
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes
Legend:
W = Wall
F = Floor
C = Ceiling
S = Skirting
D = Door
G = Glazing
Note: For Abbreviations of Building Types & Room Types refer Tables 34&35 in Appendix B.
SP-1275
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
Appendix I
Gx Type
2.0
W1/2
F4
S4
C3
D9
G5
BATH
1.5
W2
F4
S4
C3/5
D9
G5
BED
1.5
W1
F15
S1
C3
D9
G14
DINE
1.5
W1
F3
S1
C3
D9
G13
DUCT
1.5
W7
F8
S7
C2
D9
ELEC
2.0
W7
F8
S1
C2
D9
ENTR
2.5
W1
F3
S1
C3
D9
EXTR
2.5
W3
F6
S8
KTCH
3.0
W1/2
F2
S5
C3
D9
G14
LNGE
1.5
W1
F3
S1
C3
D9
G13
ST/K
2.5
W1
F3
C2
D9
G6
Building
Room
ABL/1-3
ALL
ACC/1
Live Load
kN/m2
Page 123
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Building
Room
Live Load
kN/m2
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
Appendix I
Gx Type
STWL
3.0
W1
F1
S1
C3
WC
1.5
W2
F4
S4
C3/5
D9
G10
BATH
1.5
W2
F4
S4
C3
D9
G5
BED
1.5
W1
F3
S1
C3
D9
G14
DINE
2.0
W1
F3
S1
C3
D9
G6
DUCT
1.5
W7
F8
S7
C2
D9
ELEC
2.0
W7
F8
S1
C2
D9
ENTR
3.0
W1
F3
S1
C3
D9
EXTR
3.0
W3
F6
S8
KTCH
3.0
W1/2
F2
S5
C3
D9
G14
LNGE
2.0
W1
F3
S1
C3
D9
G13
ST/K
2.5
W1
F3
S1
C2
D9
G6
STWL
3.0
W3
F8
S7
C3
ACC/1
ACC/2
June 2004
Page 124
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
Appendix I
Gx Type
1.5
W2
F4
S4
C3/5
D9
G10
BATH
1.5
W2
F4
S4
C3
D9
G10
BED
1.5
W1
F3
S1
C3
D9
G7
DINE
2.0
W1
F3
S1
C3
D9
G13
ENTR
3.0
W1
F3
S1
C3
D9
EXTR
3.0
W3
F6
S8
KTCH
3.0
W1/2
F2
S4
C3
D9
G14
STWL
3.0
W3
F8
S7
C3
WC
1.5
W2
F4
S4
C3
D9
G5
BATH
1.5
W2
F4
S4
C8
D11
BED
1.5
W1/6
F3
S1
C8
D9
ELEC
2.0
W7
F8
S7
C2
D9
ENTR
3.0
W1
F3
S1
C8
D11
EXTR
3.0
W3
F6
S8
Building
Room
ACC/2
WC
Live Load
kN/m2
AA/3
ACC/4
SP-1275
Page 125
June 2004
G8
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Building
ACC/4
ACC/5
June 2004
Room
Live Load
kN/m2
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
SERV
1.5
W1
F3
S1
C3
D11
SH
2.0
W6
F7
S4
C3
D11
ST/G
3.0
W1
F3
S1
C3
D9
STWL
3.0
W3
F8
S7
C3
WC
1.5
W2
F4
S4
C8
D11
BATH
1.5
W2
F4
S4
C8
D11
BED
1.5
W1
F3
S1
C8
D9
ELEC
2.0
W7
F8
S7
C2
D9
EXTR
3.0
W3
F6
S8
C8
KTCH
3.0
W1/2
F3
S4
C3
D9
LNGE
1.5
W1
F3
S1
C3
D9
SERV
1.5
W1
F3
S1
C3
D11
SH
2.0
W1/6
F7
S4
C3
D11
ST/G
3.0
W1
F3
S1
C3
D9
Page 126
SP-1275
Appendix I
Gx Type
G8
G13
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
1.5
W1/2
F4
S4
C7
D11
ALL
3.0
W1
F3
S1
C3
D11
EXTR
3.0
W3
F6
S8
AIR/2
ALL
7.5
W-
F-
ANC/1 &
ANC/2
BAKE
3.0
W2/6
F4
S1
C2
D11
CDST
7.5
W2
F11
S1
C2
D3
LDRY
3.0
W2/6
F4
S1
C2
D11
ST/B
7.5
W1
F8
S1
C2
D9
ST/D
7.5
W1
F4
S1
C2
D9
ST/G
5.0
W1
F4
S1
C2
D9
ST/K
7.5
W1
F4
S1
C2
D9
ST/P
5.0
W1
F4
S1
C2
D9
WC
2.0
W1/2
F4
S4
C8
D9
G5
C 7.5
C W1
C F12
C S1
C C5
C D1
C G-
Building
Room
ACC/5
WC
AIR/1
CON/1-3
SP-1275
CTRL
Live Load
kN/m2
Page 127
June 2004
Appendix I
Gx Type
G5
G5
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
7.5
W7
F12/3
S1
C2
D3
BATY
7.5
W7
F14
S5
C2
D4
ALL
7.5
W7
F8
S7
C2
D4
EXTR
7.5
W3
F6
S8
ALL
7.5
W7
10cm
S7
C2
D4
EXTR
7.5
W3
F6
S8
ALL
7.5
W7
F8
S7
C2
D4
EXTR
7.5
W3
F6
S8
OFF
3.0
W1
F3
S1
C3
D9
G-
WC
2.0
W1/2
F4
S4
C2
D9
G5
ALL
7.5
W1
F3
S7
C3
D11
G-
EXTR
5.0
W3
F8
S8
PARK
7.5
W1
F8
S7
WC
2.0
W1/2
F4
S4
Room
CON/1-3
EQMT
ELE/1
ELE/2
ELE/3
FIR/1
June 2004
Appendix D
Wx Type
Building
Live Load
kN/m2
Page 128
SP-1275
Appendix I
Gx Type
D12
C2
D9
G5
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Room
GAR/1
EXTR
40.0
W3
F6
S8
WC
2.0
W1/2
F4
S4
EXTR
40.0
W3
F6
S8
OFF
3.0
W1
F3
WC
2.0
W1/2
EXTR
40.0
ST/F
GAR/2
GAR/3
GUA/1
HOS/1 &
HOS/2
SP-1275
Live Load
kN/m2
Building
Appendix G
Cx Type
Appendix H
Dx Type
Appendix I
Gx Type
C2
D9
G5
S1
C3
D11
G14
F4
S4
C2
D9
G5
W3
F6
S8
7.5
W7
F14
S4
C1
D8
WC
2.0
W1/2
F4
S4
C2
D9
G5
ALL
2.0
W1
F3
S1
C3
D11
G9
EXTR
2.0
W3
F6
S8
WC
2.0
W1/2
F4
S4
C3
D9
G6
BATH
2.0
W2
F4
S4
C3
D9
G6
ST/M
2.0
W1
F3
S1
C3
D9
G5
EXAM
2.0
W1/6
F3
S1
C3
D9
G5
Page 129
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Building
HOS/1 &
HOS/2
HOS/3
KIT/1-3
June 2004
Room
Live Load
kN/m2
Appendix D
Wx Type
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
Appendix I
Gx Type
OFF
2.0
W1
F3
S1
C3
D9
G5
ST/H
2.0
W1
F7
S7
C3
D9
G5
MORT
2.0
W1
F3
S1
C3
D3
BED
1.5
W1
F3
S1
C3
D9
G9
PTRY
3.0
W1/6
F4
S4
C3
D9
G5
RECP
2.5
W1
F3
S1
C3
D2
G-
SL
2.0
W1/6
F4
S4
C3
D9
G6
TRMT
2.0
W1/6
F3
S1
C3
D9
G6
WC
2.0
W2
F4
S4
C3
D9
G6
REDX
2.0
W1/6
F3
S1
C3
D9
G5
WC
1.5
W1/2
F4
S4
C3
D9
G6
EXTR
3.5
W3
F6
S8
KTCH
3.0
W1/2
F4
S4
C3
D2
G5
Page 130
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
C5
D2
G14
S3
C5
D9
G14
F2
S4
C4
D12
G1
W1
F3
S3
C3
D9
4.0
W1
F5
S4
C5
D1
DINE
4.0
W1
F3
S3
C5
D1
EXTR
5.0
W3
F6
S8
ICE
3.0
W1
F5
S4
C3
D9
KTCH
3.0
W2/9
F3
S4
C3
D11
G5
LNGE
2.0
W1/11
F10
S3
C5
D1
G1
RECP
2.0
W1/11
F3
S1
C3
D1
G1
ST/G
4.0
W1
F8
S4
C3
D9
ST/L
5.0
W1
F2
S4
C3
D12
Room
Live Load
kN/m2
LAB/1-3
ALL
3.0
W2
F14
S4
EXTR
3.5
W3
F6
S8
OFF
2.5
W1
F14
BAR
5.0
W1
CLNR
2.0
CORR
MES/1
SP-1275
Appendix D
Wx Type
Building
Page 131
June 2004
Appendix I
Gx Type
G1
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
3.0
W12/9
F2
S1
C3
D5
TV
2.0
W1
F10
S3
C3
D3
G1
WC
2.0
W1/2
F4
S4
C3
D9
G6
CLNR
2.0
W1
F3
S3
C3
D9
CORR
4.0
W1
F5
S4
C5
D1
DINE
4.0
W1
F3
S3
C5
D1/6
EXTR
4.0
W3
F6
S8
ICE
3.0
W1
F5
S4
C3
D9
KTCH
3.0
W1/2/9
F3
S4
C3
D11
G5
LNGE
2.0
W1/9/11
F10
S3
C5
D1
G1
RECP
2.0
W1/11
F3
S1
C5
D1
G1
ST/G
4.0
W1
F8
S4
C3
D9
SERV
3.0
W1/2/9
F2
S1
C3
D5
TV
2.0
W1
F3
S3
C3
D3
Room
Live Load
kN/m2
MES/1
SERV
MES/2 &
MES/3
June 2004
Appendix D
Wx Type
Building
Page 132
SP-1275
Appendix I
Gx Type
G1
G1
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Building
Room
Live Load
kN/m2
MES/2 &
MES/3
WC
2.0
MOS/1
DOME
MOS/2
OFF/1 &
OFF/2
SP-1275
Appendix D
Wx Type
W1/2
Appendix E
Fx Type
F4
Appendix F
Sx Type
S4
W5
Appendix G
Cx Type
C3
Appendix H
Dx Type
D9
C2
ENTR
2.0
W1
F3
S1
EXTR
2.0
W3
F6
S8
PRAY
2.0
W1
F10
WC
2.0
W1/2
PRAY
1.5
CORR
Appendix I
Gx Type
G6
G7
C3
D12
S3
C3
D12
G3
F4
S4
C3
D9
G3
W1
F10
S3
C3
D9
G-
4.0
W1
F3
S1
C4
D1
G-
ELEC
3.5
W1
F8
S1
C2
D9
ENTR
4.0
W1
F3
S1
C5
D1
EXTR
5.0
W3
F6
S8
FILE
5.0
W1
F3
S1
C3
D11
OFF
2.5
W1
F3
S3
C3
D11
Page 133
June 2004
G
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix G
Cx Type
Appendix H
Dx Type
S1
C3
D9
F5
S4
C3
D9
W1
F3
S1
C3
D9
2.5
W1
F3
S1
C3
D9
STAND
4.0
W1
F7
S7
C3/5
D9
WC
2.0
W1/2
F4
S4
C3
D9
G6
REC/6
EXTR
3.0
W3
F6
S8
SCH/1 To
SCH/3
CLRM
3.0
W1
F3
S1
C3
D9
G-
CORR
4.0
W1
F3
S1
C3/5
D1
DINE
4.0
W1
F3
S1
C3
D1
FILE
5.0
W1
F3
S1
C3
D9
EXTR
7.5
W3
F6
S8
KTCH
3.0
W1/2
F2
S4
C3
D9
SERV
3.0
W1/2
F2
S4
C3
D3
Appendix D
Wx Type
Appendix E
Fx Type
Room
OFF/1 &
OFF/2
ST/O
10.5
W1
F7
WC
2.0
W1/2
ELEC
3.0
PROJ
REC/5
June 2004
Live Load
kN/m2
Building
Page 134
SP-1275
Appendix F
Sx Type
Appendix I
Gx Type
G6
G7
G-
G-
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
Room
Live Load
kN/m2
SCH/1 To
SCH/3
ST/0
5.0/m
W1
F8
S7
C3
STWL
7.5
W7
F8
S1
C3
WC
3.0
W1/2
F4
S4
C5
D9
WKSP
10.5
W1
F8
S7
C2
D1
SHO/1
ALL
7.5/m
W1
F3
S1
C2
D11
& /2
EXTR
5.0
W3
F6
S8
SPO/1
ELEC
3.5
W1
F3
S1
C3
D9
EXTR
4.0
W3
F6
S8
C3
SQCT
2.0
W4
F9
VIEW
4.0
W1
F8
WC
2.0
W1/2
ALL
4.0
EXTR
WC
SPO/2
SP-1275
Appendix D
Wx Type
Building
D3
C3
D12
S1
C8
D11
F4
S4
C3
D9
W1
F-
S2
C-
D-
4.0
W3
F-
S8
2.0
W1/2
F4
S4
C3
D9
Page 135
June 2004
Appendix I
Gx Type
G6
G-
G6
G6
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
C5
D-
S4
C3
D9
G5
F4
S4
C3
D9
G6
W1
F-
S1
C3/5
D3
W3
F6
S8
W1/2
F4
S4
C3
D9
10/m
W1
F11
S1
C2
D3
EXTR
5.0
W3
F6
S8
ST
5/m
W1
F4
S4
C2
D3
ALL
5.0
W2
F8
S7
C2
D3
EQMT
5.0
W2
F12
C2
D3
EXTR
5.0
W3
F6
S8
WC
2.0
W1/2
F5
S4
C3
D9
Room
Live Load
kN/m2
SPO/3 &
SPO/4
ALL
4.0
W1
F-
S3
EXTR
4.0
W3
F-
S8
KTCH
3.0
W1/2
F3
WC
2.0
W1/2
ALL
2.5/m
EXTR
2.5/m
WC
2.0
STO/5
ST
STO/6 & /7
STO/1 To
STO/2
TEL/1
June 2004
Appendix D
Wx Type
Building
Page 136
SP-1275
Appendix I
Gx Type
G6/11
G5
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix C: Typical Live Loads & Finishes (contd.)
Appendix E
Fx Type
Appendix F
Sx Type
Appendix G
Cx Type
Appendix H
Dx Type
C2
D3
S4
C3
D9
F8
S2
C3
D3
W3/10
F6
S8
4.0
W1
F8
S2
C3
D9
OFF
2.5
W1
F8
S2
C3
D11
ST
2.5/m
W1
F8
D9
WARE
2.5/m
W7
F8
D3
WC
2.0
W1/2
F4
Room
Live Load
kN/m2
TEL/2
ALL
5.0
W1
F7
S7
EXTR
5.0
W3
F-
S8
WC
2.0
W1/2
F4
CORR
5.0
W1
EXTR
7.5
FILE
WAR/1 To
WAR/4
SP-1275
Appendix D
Wx Type
Building
Page 137
June 2004
S4
C3
D9
Appendix I
Gx Type
G5
G5
G5
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix D: Wall Finishes
Type
W1
Description
Internal Render & Emulsion Paint
15mm cement/sand render applied in two coats. Primed with one coat PVA
primer/seal and two coats PVA copolymer based putty filled, rubbed down
with fine sandpaper to completely even surface and painted with two coats of
washable and steam resistant emulsion paint – Vinyl Silk finish. (It should
be noted that while Vinyl Silk finish is specified here this may not be always
the case: sometimes Gloss Oil to Dado is required; or Matt finish; or Gloss
finish all over, etc., if in doubt check with the Company and hence the
Client).
W2
Ceramic Wall Tiles
10mm cement/sand render to blockwork walls applied in two coats. Second
coat keyed with cross hatching and combing to receive 152x152x5.5mm
glazed ceramic wall tiles. Tiles fixed and grouted with manufacturer’s
recommended epoxy based adhesive. All adhesives should be waterproof.
Shower grouting should be waterproof and kitchen grouting should be epoxy
to prevent growth of bacteria etc. Tiling full height or to heights indicated
on drawings. All external angles to be formed using round edged tiles.
Round edged tiles to be used at change in wall finish.
W3
Heavy texturised External Paint
Fair faced blockwork and fair faced in-situ concrete. Cleaned down and
flush pointed. Cement/Sand wash bag rubbed, applied over entire surface
and finished to 4.5mm overall thickness with one coat of PVA Copolymer
emulsion paint. Emulsion paint priming coat and one coat roller applied
heavy texturised external copolymer emulsion paint finish coat. Final
texture by sponge or spatula.
W4
Fibrous Epoxy Plaster
Fair faced blockwork walls cleaned down and dampened. Finished to 15mm
overall thickness with two coats trowel. Fibrous Epoxy Plaster applied in
accordance with manufacturer’s printed instructions. Surface blemishes
sanded down with fine sand paper. For Squash courts the wall court
markings are to be made with polyurethane paint.
W5
Mosque Dome
Rendering with steel float finish. One coat of primer sealer, two coats PvA,
two undercoats and two coats of full gloss.
W6
Ceramic Tile Splash Backs
Splash backs to back and sides of sink/vanity unit to be as specification W2
minimum 3 courses of tiles high x 4 tiles wide unless shown otherwise on
drawings.
June 2004
Page 138
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix D: Wall Finishes (contd.)
Type
W7
Description
Fair Faced Block work
Fair faced blockwork cleaned down and flush pointed. Cement/sand wash,
bag rubbed applied over entire surface and finished with 1 coat PVA
Primer/sealer and 2 coats washable and steam resistant emulsion.
W8
Epoxy Glazed Finish
Epoxy glazed finish to full height or as shown on Drawings/Instructions.
W9
Corner Gaurds (Stainless Steel Angle)
Stainless steel angle corner guards 2.0m long to protect all external angles of
walls, including door jambs. Bottom edge level with top of skirting.
W10
Stucco embossed Finish
Composite insulated aluminium cladding panels with 0.55m aluminium inner
skin with white Stucco embossed (or to clients choice) finish.
W11
Veneer Finish
Timber partitions with HW veneer faced ply facing.
W12
Demountable Partition Finish
Demountable galvanised steel framed partitions with plastic coated steel
face. (A great deal of demountable partitions are also made from gypsum
plasterboard covered in vinyl cloth or paper – which can be used as an
alternative).
Note:
SP-1275
Refer Appendix C for wall finishes in different buildings and rooms.
Page 139
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix E: Floor Finishes
Type
F1
Description
Vinyl Floor Tiles
Size 300m x 300m x 2mm fixed with manufacturer’s recommended
bituminous adhesive to cement/sand screed. Overall thickness of tiles and
screed 50mm.
F2
Clay Floor Quarry Tiles
Size 150mm x 150mm x 12.5mm shot faced clay floor quarry tiles (BS
6431 type A). Bedded and jointed in cement/sand mortar (1:4) on
cement/sand floor screed. Overall thickness of tiles and screed 50mm or
laid to falls as required.
F3
Pre cast Terrazzo Tiles
300mm x 300mm x 25mm tiles bedded and joined in cement/sand mortar to
overall thickness of 50mm. Pointed with matching grout, ground to a high
degree of accuracy, polished and sealed on completion with metalized
emulsion polish/sealer to manufacturers recommendation.
F4
Non-slip Ceramic Floor Tiles
Size 152mm x 152mm x 9.5mm. Fixed with manufacturer’s recommended
adhesive to cement/sand screed and pointed with matching epoxy grout.
Overall thickness 50mm or laid to falls as required. Matching ribbed step
tread tiles to be provided across all shower entrances.
F5
Unglazed Ceramic Floor Tiles
Size 152mm x 152mm x 9.5mm. Fixed as item F4.
F6
PC Interlocking Tiles
To be specified by the client as there are several different varieties in terms
of thickness, sizes, patterns and colours.
F7
Non-slip Granolothic Pavings
40mm minimum thickness granolithic topping applied to matured concrete
slab. Concrete slab surface to be cleaned, hacked and wetted and cement
grout brushed over entire surface before laying of granolithic concrete.
Granolithic concrete to be laid in 15m2 bays and carborundum dust
sprinkled and trowelled into finished surface at a rate of 1.5 kg/m2 while
still ‘Green’. Granolithic toppings to stairs to be laid monolithically on
fresh base concrete within 3 hours and sprinkled with carborundum dust as
above. Where indicated as being to falls maximum thickness to be 65mm.
June 2004
Page 140
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix E: Floor Finishes (contd.)
Type
F8
Description
Hardened & Sealed Granolithic Floor
40mm minimum thickness granolithic topping laid monolithically on fresh
base concrete (within three hours) and finished with case hardening, dust
proofing and oil proofing compound for granolithic floors applied in
accordance with the manufacturer’s recommended instructions. Where
indicated as being to falls maximum thickness to be 65mm. (Note: Where
specified in services cupboard’s or ducts topping can be applied to
matured slabs, not monolithically).
F9
Squash Court Flooring
Proprietary squash court flooring system comprising semi-resilient under
carriage of 50mm x 50mm preservative treated battens at 300mm centres
on rubber pads on steel floated concrete floor slab. Maple or beech 25mm
thick strip flooring tongued and grooved and secretly nailed to battens.
Machine sanded. Court markings applied in polyurethane paint. Entire
surface sealed with matt polyurethane varnish (2 coats). This item is not
tabulated being a one off item.
F10
Carpet Tiles
Size of tiles 500mm x 500mm x 7.3mm. Laid with medium stick latex
anti-slip solution on 50mm cement/sand screed, sealed with anti-dust
compound.
F11
Epoxy Coated Flooring
Two pack high build epoxy coating. Applied onto 50mm cement/sand
screed. Wire brushed to remove laitence and filled with solventless filter.
F12
Raised Access Floor (Pedestal Floor)
Medium grade raised access floor with vinyl infill. To include MS
channel bridging to services trenches. O/A depth 600mm (or as stated)
from finished floor level to structural slab level. Weight capacity to be
determined. Slab to be finished with non-dusting coating (epoxy coating).
It should be noted that if carpet tiles are used then these need to be antistatic.
SP-1275
F13
Flexible Sheet PVC Gymnasium Flooring
F15
Fitted Carpets
Note:
Refer Appendix C for floor finishes in different buildings and rooms.
Page 141
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix F: Skirting Types
Type
June 2004
Description
S2
Vinyl tile with toe ‘sit on’ skirtings (pre-formed corners).
S3
Hardwood matching door architecture, minimum 18m x 100mm of even
grain and colour. Rounded leading edge, PX65 satin wood stain preservative
and ‘Sadotop’ finish.
S4
Coved ceramic tiles with special corners, matching floor tiles.
S5
Wall tiles with right angle butt to floor with 3mm mastic pointed abutment.
S6
Trunking skirting.
S7
Coved Granolithic integral with floor.
S8
Bituminous paint skirting on fair face concrete or block work.
Note
:
Refer Appendix C for skirting in different buildings and rooms.
Page 142
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix G: Ceilings
Type
Description
C1
Smooth fair face concrete.
C2
Emulsion painted smooth fair face concrete.
C3
Brilliant white textured finish on smooth fair face concrete.
C4
Suspended ceiling, 600mm x 600mm exposed grid self finish acoustic
mineral fibre lay in panels.
C5
Suspended ceiling, 600mm x 600mm exposed grid self finish washable
mineral fibre lay in panels.
C6
Softwood ‘T’ and ‘G’ chamfered match boarding with secret fixing and
clear matt finish (all as detailed).
C7
As C6 but hardwood (all as detailed).
C8
Hardwood framing with ‘Glasal’ white enamel faced panels, HW PX65
wood stain perservative and clear gloss finished (all as detailed).
C9
Insulated sandwich construction profiled aluminium with white shade
embossed finish, soffit and coloured polyester externally.
C10
Polyester finished aluminium rib ceiling with or without filler.
C11
Metal lay-in ceiling with exposed grid and bagged sound insulation over.
Note
:
1. Access panels shall be provided and coordinated into ceilings and
allow proper access to equipment over.
2. Refer Appendix C for ceilings in different buildings and rooms.
SP-1275
Page 143
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix H: Door Types
Type
Description
D1
Double Door with middle rail and glazed.
D2
Double Door with half glazing only.
D3
Double Door solid core flush door.
D4
Double Door steel faced flush door.
D5
As D1 and HW louvres.
D6
As D4 single door.
D7
Flush door with flush side panel for wide furniture access.
D8
As D7 with HW louvres.
D9
Single flush door.
D10
Full glazed door.
D11
Half glazed door.
D12
By Specialist.
Note:
1. Doors will vary in width to suit the plan, also where required
frames may be storey height and ventilation grilles may be set
into the doors.
2. Refer Appendix C for doors in different buildings and rooms.
June 2004
Page 144
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix I: Window Types (Glazing)
Type
SP-1275
Description
G1
Low-level fixed lights with high level bottom hung ventilator (1450mm
high, 1250mm wide).
G2
Mid height sliding window fixed light over (1200mm wide).
G3
Side hung to floor fixed light over (400mm wide).
G4
Fixed light to floor (400mm wide).
G5
High level, one fixed, one bottom hung (1600mm wide).
G6
High level, bottom hung (800mm wide).
G7
High level, fixed light (1400mm, 800mm, 400mm wide).
G8
Mid height, 2 fixed lights, 2 bottom hung over (1200mm wide).
G9
Mid height, fixed light with bottom hung over (800mm wide).
G10
Mid height, 2 pane fixed (400mm wide).
G11
Mid height, fixed light (400mm wide).
G12
Mid height, two fixed light (1000mm wide).
G13
Low level, one sliding, one fixed (2000mm wide) patio door.
G14
Mid height, double sliding window (1000mm wide).
Note:
Refer Appendix C for window types in different buildings and rooms
Page 145
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix J: Ironmongeries
Table 36: Ironmongery Pack
Pack
100X75 3 knuckle butt hinges s.s. washers
(pairs)
A
B
C
D
1.5
1.5
1.5
1.5
100x75 Aluminium rising butt rust proof
1
1
1
Mortise security dead lock with escutcheon
Bathroom Mortise lock with indicator and
extension release
1
Heavy duty roller latch
June 2004
Page 146
G
H
J
1.5
1.5
3
1.5
1
K
L
M
N
1.5
1
1
Mortise latch
5 lever Mortise lock-latch
F
SP-1275
1
O
1.5
1.5
Mortise dead lock with escutcheon
Mortise cylinder lock-latch with release turn
E
1
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 36: Ironmongery Pack (contd.)
Pack
A
B
C
D
E
F
G
H
J
K
L
M
N
2
2
2
2
2
2
O
Heavy duty magnetic catch
Toilet indicator bolt extension release and pull lip
Back plate to suit lock with shaped levers and
fansorite spindle (pair)
150x19 ‘D’ handle with secret fixing
1
1
1
1
1
1
1
300x19 ‘D’ handle with secret fixing (pair)
1
Flush 75mm cabinet handle and batch set for
Squash Court
1
Panic latch with external cylinder lock and latch
knob
Overhead door closer with hydraulic check & 900
hold
2
1
One way medium duty floor spring (adjustable)
with 900 hold
2
Two way medium duty floor spring (adjustable)
with 900 hold
1
2
(Contd.)
SP-1275
Page 147
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 36: Ironmongery Pack (contd.)
Pack
A
B
C
D
E
F
G
H
J
K
L
M
N
1
2
1
2
2
1
2
Perko pneumatic closer with check action
Perko spring closer
200mm high kick plates, pair to suit
Coat hook – door stop
1
Wall mounted stop or floor stop
1
1
1
2 No. 150 flush lever bolts with anti dirt sockets
2
2
Limit stays
Push plate
1
‘M’ of ‘F’ indicator plate
1
Note: All Cylinder locks to have 5 individual keys, 3 Sub-Master keys per block/ floor, 2 Builders Master key, and 1 Grand Master.
June 2004
Page 148
SP-1275
2
O
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 37: Typical Ironmongery
Building
ACC/1
Room
A
B
BATH
C
D
E
F
G
H
J
K
L
M
N
O
a
BED
a
DINE
a
DUCT
a
ELEC
a
EXTR
ACC/2
KTCH
a
LNGE
a
ST/K
a
BATH
BED
a
a
DUCT
a
ELEC
a
(Contd.)
SP-1275
Page 149
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 37: Typical Ironmongery (contd.)
Building
ACC/2
Room
A
C
D
E
F
G
H
J
K
L
M
N
O
EXTR
ST/K
ACC/4
B
a
BATH
BED
a
a
ELEC
a
EXTR
SERV
a
ST/K
a
STWL
WC
ACC/5
a
BATH
BED
a
a
ELEC
a
(Contd.)
June 2004
Page 150
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
ACC/5
EXTR
A
B
C
D
E
F
G
H
J
K
L
M
N
O
KTCH
LNGE
a
SERV
a
ST/K
a
WC
CON/1 - 3
CLNR
ELE/1 &
ELE/2
ALL
a
a
a
EXTR
ELE/3
ALL
a
EXTR
OFF
a
WC
(Contd.)
SP-1275
Page 151
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
GAR/1
EXTR
A
WC
GAR/2
B
C
D
E
G
H
J
K
L
M
N
O
a
EXTR
OFF
a
WC
GAR/3
F
a
EXTR
ST/F
GUA/1
WC
a
ALL
a
EXTR
WC
HOS/1
BATH
a
ST/M
(Contd.)
June 2004
Page 152
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
A
B
C
D
E
F
G
HOS/1
EXAM
a
OFF
a
ST/H
a
MORT
a
BED
a
PTRY
a
RECP
J
K
L
M
N
O
a
SL
a
WC
HOS/2
H
a
TRMT
a
REDX
a
WC
a
(Contd.)
SP-1275
Page 153
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
KIT/1/2/3
EXTR
A
B
C
D
E
F
G
KTCH
LAB/1 &
LAB/2
H
J
K
L
M
N
O
a
ALL
EXTR
OFF
MES/1
a
BAR
a
ST/L
a
CLNR
a
CORR
a
DINE
a
EXTR
a
ICE
a
KTCH
a
(Contd.)
June 2004
Page 154
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
A
B
C
D
E
F
G
LNGE
H
J
K
N
O
a
SERV
a
ST/K
a
WC
a
TV
MES/2 &
MES/3
M
a
RECP
MES/1
L
a
CLNR
a
CORR
a
DINE
a
EXTR
a
ICE
a
KTCH
a
LNGE
a
(Contd.)
SP-1275
Page 155
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
A
B
C
D
E
F
G
H
J
K
RECP
MES/2 &
MES/3
M
N
O
a
SERV
a
ST/K
a
WC
a
TV
MOS/1
L
a
DOME
ENTR
a
EXTR
PRAY
a
WC
a
MOS/2
OFF/1 To
OFF/3
CORR
a
ELEC
a
(Contd.)
June 2004
Page 156
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
A
B
C
D
E
F
G
OFF/1 TO
OFF/3
ENTR
a
EXTR
a
OFF
a
ST/G
a
H
WC
REC/5
J
O
a
WC
ALL
N
a
STND
SCH/1 To
SCH/4
M
a
PROJ
EXTR
L
a
ELEC
REC/6
K
a
a
a
EXTR
a
KTCH
a
(Contd.)
SP-1275
Page 157
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
A
B
C
D
E
F
G
H
SCH/1 TO
SCH/4
SERV
a
ST/G
a
WC
L
M
N
O
a
ALL
a
EXTR
SPO/1
K
a
WKSP
SHO/1 & /2
J
a
ELEC
a
EXTR
a
SQCT
a
WC
a
VIEW
SPO/2
ALL
a
EXTR
a
WC
a
(Contd.)
June 2004
Page 158
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 37: Typical Ironmongery (contd.)
BUILDING
ROOM
SPO/3 &
SPO/4
ALL
A
B
C
D
E
F
G
H
a
KTCH
a
EXTR
a
WC
STO/1 &
STO/2
J
a
ALL
EXTR
WC
STO/5 & /7
ST/E
TEL/1 &
TEL/2
ALL
a
a
EXTR
WC
WAR/1 To
WAR/4
a
EXTR
OFF
a
WARE
SP-1275
Page 159
June 2004
K
L
M
N
O
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix K: Internal Environment Design Criteria
0
Room Temp
C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise
Rate NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
BAR
Std
Std
Std
10
40
200
BATH
“
“
No
6
40
150
BED
“
“
“
No
30
150
BTRY
10-30
No
“
*
45
150
CANT
Std
Std
Std
8
45
200
CHRM
“
“
“
No
40
150
CLNR
No
No
No
“
45
100
CLRM
Std
Std
Std
Std
“35
300
CONF
“
“
“
6
35
300
CORR
No
“
No
No
40
150
Building
Room
Standard Rooms
ALL
(Contd.)
June 2004
Page 160
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix K: Internal Environment Design Criteria (contd.)
0
Room Temp
C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise
Rate NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
CTRL
Std
“
Std
“
35
300
DARK
“
“
No
6
35
*
DINE
“
“
Std
8
40
200
ENTR
“
“
No
No
40
300
FILE
“
“
“
“
40
300
GYM
“
“
Std
“
40
300
ICE
“
“
“
“
45
150
LBRY
“
“
Std
3
35
300
LNGE
“
“
Std
4
35
300
OFF1
“
“
“
4
35
500
OFF2
“
“
“
4
35
500
Building
Room
Standard Rooms
ALL
(Contd.)
SP-1275
Page 161
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix K: Internal Environment Design Criteria (contd.)
Room
Temp 0C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise Rate
NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
OFF3
“
“
“
4
35
750
PRAY
“
“
“
No
35
150
PROJ
“
“
No
*
35
150
RECP
“
“
“
No
40
300
RSNT
“
“
Std
8
40
200
SHOP
“
“
No
No
40
300
SQCT
“
“
“
“
40
500
SERV
“
“
“
“
45
150
SH
No
No
“
6
45
150
ST/O
“
“
“
No
45
150
SWGR
30+5
90 max
“
“
45
150
Building
Room
Standard Rooms
ALL
(Contd.)
June 2004
Page 162
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix K: Internal Environment Design Criteria (contd.)
Room
Temp 0C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise Rate
NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
TLET
No
No
No
6
45
150
TV
Std
Std
Std
6
35
200
UTIL
“
“
No
No
45
150
VIEW
“
“
“
“
40
150
WAIT
“
“
“
“
40
200
WC
No
No
“
6
45
150
ACC (ALL)
KTCH
Std
Std
No
6
40
300
ANC (ALL)
BAKE
24+4
No
*
*
45
300
CDST
5±1
1“
No
No
45
150
DPFZ
-18± 1??
(depends)
“
“
“
45
150
Building
Room
Standard Rooms
ALL
(Contd.)
SP-1275
Page 163
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix K: Internal Environment Design Criteria (contd.)
Room
Temp 0C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise Rate
NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
LDRY
24+4
“
*
*
45
300
ST/K
Std
Std
No
No
40
150
ST/P
“
“
“
“
40
150
AUX
Std
Std
No
No
45
150
CTRL
“
“
Std
“
40
300
EXAM
Std
“
Std
No
35
300
MORT
“
“
No
“
40
150
RECP
“
“
“
“
40
300
REDX
“
“
Std
“
40
300
ST/M
“
“
No
“
40
150
TRMT
“
“
“
“
35
300
Building
Room
Standard Rooms
ANC (ALL)
CON (ALL)
HOSP (ALL)
(Contd.)
June 2004
Page 164
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix K: Internal Environment Design Criteria (contd.)
Room
Temp 0C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise Rate
NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
WARD
“
“
Std
“
35
XRAY
“
“
“
“
35
200
KTCH
24+4
90 max
80%
20
40
500
PTRY
Std
Std
No
No
40
150
PREP
“
“
“
10
40
500
ST/K
“
“
“
No
45
150
CORR
Std
Std
No
No
40
150
LABO
“
“
100%
*
40
500
LABW
“
“
100%
*
40
500
ST/B
“
“
*
*
45
150
ST/F
“
“
*
*
40
500
Building
Room
Standard Rooms
HOSP (ALL)
KIT (ALL)
LAB (ALL)
(Contd.)
SP-1275
Page 165
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix K: Internal Environment Design Criteria (contd.)
Room
Temp 0C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise Rate
NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
REC1
Std
“
Std
No
40
*
REC2
“
“
“
“
40
500
ST/E
“
“
No
“
40
150
ST/L
“
“
“
“
40
150
KTCH
Std
Std
No
6
40
300
ST/B
No
No
*
*
45
150
ST/C
*
Std
No
*
40
150
ST/F
Std
“
“
*
40
150
ST/H
“
“
“
*
40
150
ST/M
“
“
“
6
40
150
ST/T
22±1
50±2
“
No
40
300
Building
Room
Standard Rooms
MES (ALL)
SCHO
(ALL)
STO (ALL)
WAH (ALL)
(Contd.)
June 2004
Page 166
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix K: Internal Environment Design Criteria (contd.)
Room
Temp 0C
Relative
Humidity %RH
Min Fresh Air
l/s
Min Air
Change Per h
Max Noise Rate
NR
Min Illumination
Lux
Standard (Std)
24±2
45-60
10/pers
-
-
-
Project Specific
*
*
*
*
*
*
ST/U
Std
Std
“
“
40
150
WOR/1
WKSP
Std
Std
Std
No
40
300
WOR/2
WKSP
No
No
No
No
45
200
WOR/3
WKSP
Std
Std
Std
No
40
300
WOR/4
WKSP
No
No
No
6
45
200
WOR/5 & /6
WKSP
No
No
No
No
45
200
Building
Room
Standard Rooms
WAH (ALL)
Note: * = Project Specific Requirements
SP-1275
Page 167
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Appendix L: Electrical Requirements
Table 38: Legend for Electrical Requirements
Ref No
Service
Legend
E1
POWER OUTLET
Qty Y = qty as rqd
E2
SHAVER OUTLET
qty
E3
HAND DRYER
qty
Y = qty as rqd
E4
LIGHTING
BLD = external
ROOM = internal
A = automatic
E5
FIRE ALARM
M = manual
E6
EMERGENCY LIGHTING
Y = qty as rqd
E7
NURSE CALL
Y = qty as rqd
E8
TELEPHONE OUTLET
Qty
E9
TELEVISION OUTLET
Qty
E10
AIR-CONDITIONED
Y = qty as rqd
E11
MECH VENTILATION
Y = qty as rqd
E12
WATER HEATER
Qty Y = qty as rqd
E13
DRINKING WATER
COOLER
Qty Y = qty as rqd
E14
COOKER
Qty Y = qty as rqd
E15
REFRIGERATOR
Qty Y = qty as rqd
E16
INSECTOCUTOR
Qty Y = qty as rqd
Note: * = Means Special Application in the following pages under table 38
June 2004
Page 168
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 39: Electrical Requirements Schedule
BUILDING
ROOM
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
Standard Rooms
ALL
E15
E16
Y
BAR
Y
BTRY
SP-1275
E14
Y
M
Y
A
M
Y
1
Y
*
Y
Y
Y
Y
Y
CANT
Y
Y
CHRM
Y
Y
CLNR
Y
Y
CLRM
Y
Y
CONF
Y
Y
M
Y
CORR
Y
Y
A
Y
CTRL
Y
Y
M
DARK
Y
Y
DINE
Y
Y
M
ENTR
Y
Y
A
FILE
Y
Y
Y
GYM
Y
Y
Y
Page 169
Y
Y
Y
Y
Y
Y
Y
Y
Y
June 2004
Y
Y
Y
Y
Y
Y
*
Y
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 39: Electrical Requirements Schedule (contd.)
BUILDING
ROOM
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
ICE
Y
Y
LBRY
Y
Y
LDRY
Y
Y
LNGE
Y
Y
OFF1
4
Y
1
1
OFF2
4
Y
2
1
OFF3
Y
Y
Y
Y
PRAY
Y
Y
PROJ
Y
Y
RECP
Y
Y
M
RSNT
Y
Y
M
SHOP
Y
SQCT
SERV
E11
E12
E13
E14
E15
E16
Y
ALL
Y
Y
M
Y
Y
M
Y
Y
Y
Y
Y
1
Y
Y
Y
Y
Y
Y
Y
1
Y
Y
1
Y
Y
Y
1
Y
Y
Y
Y
1
Y
Y
1
1
Y
(Contd.)
June 2004
Page 170
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 39: Electrical Requirements Schedule
BUILDING
ROOM
ALL
SH
ST/O
E1
Y
TLET
TV
E2
Y
E4
E5
E6
E7
E8
E9
E10
Y
Y
Y
Y
Y
Y
UTIL
Y
Y
VIEW
Y
Y
Y
Y
Y
WC
Y
ABL
BLD
Y
ACC/1 &
ACC/2
BLD
Y
BATH
1
E11
Y
Y
WAIT
Y
E3
4
Y
KTCH
Y
Y
E13
E14
E15
*
1
E16
Y
Y
Y
M
Y
Y
Y
BED
E12
Y
1
1
Y
Y
Y
Y
(Contd.)
SP-1275
Page 171
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 39: Electrical Requirements Schedule (contd.)
BUILDING
ROOM
ACC/3
BLD
E1
BATH
BED
ACC/4 & /5
E2
Y
1
E4
E5
Y
M
E7
1
E8
E9
E10
M
Y
M
ANC (ALL)
BLD
Y
M
A
CDST
Y
DPFZ
1
E14
1
E15
E16
1
Y
Y
2
BLD
Y
E13
Y
2
AIR/1
Y
E12
Y
Y
BAKE
E11
Y
Y
Y
1
E6
Y
BLD
BED
E3
1
1
1
Y
Y
Y
Y
?
Y
*
Y
*
Y
Y
*
Y
*
LDRY
Y
Y
Y
Y
ST/K
Y
Y
Y
ST/P
Y
Y
Y
*
(Contd.)
June 2004
Page 172
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 39: Electrical Requirements Schedule (contd.)
BUILDING
ROOM
CON (ALL)
BLD
E1
E2
E3
E4
E5
Y
M
AUX
Y
Y
CTRL
Y
Y
E6
E7
Y
Y
M
EXP
BLD
Y
*
FIR (ALL)
BLD
Y
A
GAR (ALL)
BLD
Y
M
GUA/1
BLD
Y
HOS (ALL)
BLD
Y
BATH
Y
1
Y
Y
EXAM
2
Y
MORT
2
Y
RECP
2
Y
REDX
Y
Y
E10
E11
E12
E13
E14
E15
E16
Y
BLD
3
E9
Y
ELE (ALL)
BED
E8
Y
Y
Y
M
Y
Y
Y
2
1
2
1
1
1
1
M
Y
Y
1
Y
1
Y
(Contd.)
SP-1275
Page 173
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 39: Electrical Requirements Schedule (contd.)
BUILDING
HOS/ALL
ROOM
E1
E2
ST/M
1
Y
TRMT
Y
Y
WARD
Y
Y
WC
XRAY
KIT (ALL)
LAB (ALL)
E3
E4
E5
M
Y
Y
BLD
M
A
Y
PTRY
Y
Y
PREP
Y
Y
Y
1
Y
Y
E8
E9
E10
E11
Y
Y
E12
E13
E14
E15
E16
*
*
Y
Y
1
1
Y
Y
1
Y
Y
E7
1
Y
KTCH
E6
Y
Y
Y
Y
*
Y
M
ST/K
Y
BLD
Y
M
Y
Y
Y
CORR
1
Y
A
Y
LABO
Y
Y
*
Y
Y
*
LABW
Y
Y
*
Y
Y
*
(Contd.)
June 2004
Page 174
SP-1275
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Table 39: Electrical Requirements Schedule (contd.)
BUILDING
ROOM
LAB (ALL)
MES (ALL)
E4
E5
ST/B
Y
A
ST/F
Y
A
BLD
Y
M
REC
E1
E2
Y
E3
Y
E6
E7
E8
E9
E10
E11
E12
E13
E14
E15
E16
*
Y
Y
Y
Y
Y
ST/E
Y
Y
ST/L
Y
Y
REC/1-/4
BLD
Y
M
REC/5
BLD
Y
M
REC/7
AREA
Y
M
ROS
AREA
Y
SCH/1-/3
BLD
Y
M
SHO/1
BLD
Y
M
SHO/2
BLD
Y
SPO/1-/3
BLD
Y
SPO/5
AREA
Y
Y
Y
Y
M
Y
Y
(Contd.)
SP-1275
Page 175
June 2004
Version 1.0
Specification for Civil & Building Works – Design Criteria Manual
Table 39: Electrical Requirements Schedule (contd.)
June 2004
BUILDING
ROOM
SPO/6
E1
E2
E4
E5
E12
E13
BLD
Y
M
Y
Y
SPO/7
AREA
Y
STO/1
BLD
Y
A
Y
STO/2
BLD
Y
M
STO/3
BLD
Y
A
STO/4
BLD
Y
M
STO/5-/7
BLD
Y
M
STO/8
AREA
Y
TEL (ALL)
BLD
Y
M
WAR/1 & /2
BLD
Y
M
WAR/3 & /4
BLD
Y
A
WOR (ALL)
BLD
Y
M
Page 176
E3
E6
E7
E8
E9
E10
E11
Y
Y
Y
SP-1275
E14
E15
E16
Specification for Civil & Building Works – Design Criteria Manual
Version 1.0
Appendix M: SP User - Comment Form
SP User-Comment Form
If you find something that is incorrect, ambiguous or could be better in an SP, write your
comments and suggestions on this form. Send the form to the Document Control Section (DCS).
They make a record of your comment and send the form to the correct CFDH. The form has
spaces for your personal details. This lets DCS or the CFDH ask you about your comments and
tell you about the decision.
SP Details
Title
Issue Date:
Heading Number:
Figure Number:
Number:
Page number:
Comments:
Suggestions:
User’s personal details
Name:
Ref. Ind:
Signature:
Date:
Phone:
Document Control Section Actions
Comment Number:
CFDH
Dates
Recd:
Ref. Ind:
To CFDH:
CFDH Actions
Recd Date:
Decision:
Inits:
Ref.
Ind:
Date:
Date:
Inits:
Reject:
Accept, revise at next issue:
Accept, issue temporary
amendment
Comments:
Originator
Advised:
SP-1275
Date:
Inits:
Document Control
Section Advised:
Page 177
June 2004