02060 - nycsca

advertisement

05/15/15 DESIGN NO. ______

1

SECTION 02060

BUILDING DEMOLITION

PART 1 - GENERAL

1.01 DESCRIPTION OF WORK

A. Provide all labor, equipment and materials as required for the complete demolition and removal of the subject building(s), including, but not limited to, the following:

2

1. Demolition of entire building(s), and equipment, including floor slabs and foundation walls; basement foundation walls (as indicated on the

Drawings) , basement floors slabs, and footings.

2. Demolition of exterior steps, stone walls, concrete curbs, concrete sidewalks, concrete paving, except where shown otherwise on the

Drawings.

3. Prior to filling, removal of all fixtures and equipment, e.g., exposed piping, conduits, tanks, from the area.

4. Disconnecting and capping of utility lines designated for removal or abandonment.

5. Clearing of the site.

6. Removal and disposal of all demolished materials, rubbish, and debris.

B. All demolition, removal, and disposal Work shall be in compliance with the requirements of the Building Code of the City of New York and with all State and Federal regulations.

1

C. For earth fill and grading of site, see Section 02200.

D. Perform asbestos abatement work in accordance with

Section 02081 prior to demolition.

E. Recycling and disposal of non-hazardous demolition waste shall be performed in accordance with Section

S01524 – Construction Waste Management.

1.02 SUSTAINABILITY REQUIREMENTS

A . Sustainability requirements included in the Section are as follows:

NYCSCA BUILDING DEMOLITION 02060 - 1

05/15/15 DESIGN NO. ______

1. Refrigerant recovery requirements.

2. Demolition waste management.

10

3. Management of dust and particulate matter.

B . The Contractor shall implement practices and procedures to meet the Project’s sustainable requirements. The

Contractor shall ensure that the requirements related to these goals, as defined in Specification Section

S01352, Sustainability Requirements, and as specified in this Section, are implemented to the fullest extent. Substitutions or other changes to the work shall not be proposed by the Contractor or their subcontractors if such changes compromise the stated

Sustainable Design Performance Criteria.

1.03 REFERENCE STANDARDS

A. References and industry standards listed in this

Section are applicable to the Work. Unless more restrictive criteria or differing requirements are explicitly stated in the Specifications, or mandated by governing codes or regulations, the recommendations, suggestions, and requirements described in the referenced standards shall be deemed mandatory and applicable to the Work.

B. National Association of Demolition Contractors (NADC) -

Demolition Safety Manual, latest edition.

C. All applicable OSHA requirements and other Federal,

State, and local codes, laws, ordinances, regulations, and guidelines for demolition and related work.

1.04 APPLICATION FOR DEMOLITION AND REMOVAL PERMITS

A. Asbestos abatement is to be completed prior to application for demolition permits.

1

B. Apply for permits in accordance with Chapter 1 of Title

28 of the NYC Administrative Code, Article 105, and

Section BC 105.6 of the 2014 NYC Building Code.

1.05 SUBMITTALS

A. Shop Drawings

1. Submit shop drawings and associated calculations for sheeting, shoring, bracing and underpinning.

Shop drawings and calculations shall be signed and sealed by a Professional Engineer licensed in the

NYCSCA BUILDING DEMOLITION 02060 - 2

05/15/15 DESIGN NO. ______

State of New York and Design Drawings of such shall be filed with the Building Department.

2. Submit shop drawings and associated calculations for Mechanical Demolition. Mechanical demolition drawings and sequencing shall be signed and sealed by a Professional Engineer licensed in the State of New York and Design Drawings of such shall be filed with the Building Department.

B. Schedule

1. Demolition sequence schedule: Submit a schedule indicating proposed methods and sequence of operation for demolition and removals to the

Authority's Representative for review prior to commencement of Work.

2. Insect and rodent control scheme

3. Pollution Control Scheme: The Contractor shall submit a pollution control plan not more than 30 days prior to the commencement of demolition work.

The plan shall outline proposed methods for dust control, noise control and maintaining the surrounding streets and buildings in a clean condition for both demolition operations and during debris removal. The plan shall be subject to review and approval by the Authority.

C. Quality Control Submittals

1. Reports a. Existing Conditions Survey: Submit existing conditions survey consisting of various data described in Article 3.02 of this Section.

2. b. Monitoring and Vibration control Final Report

Certificates a. Bureau of Water Supply certificate stating utility has been properly capped off. b. Bureau of Sewers certificate stating utility has been properly capped off. c. Gas Utility Company certificate stating utility has been properly capped off.

NYCSCA BUILDING DEMOLITION 02060 - 3

05/15/15 DESIGN NO. ______

3. Contractor Qualifications a. Provide proof of Contractor and Professional

Engineer qualifications specified under

“Quality Assurance”.

D. Signed receipt for salvaged items delivered to the

Department of Education.

E. Sustainability Submittals

1. Statement of Refrigerant Recovery: Signed by refrigerant recovery technician responsible for recovering refrigerant, stating that all refrigerant that was present was recovered and that recovery was performed according to EPA regulations. Include name and address of technician and date refrigerant was recovered.

2. Refer to Section S01524, Construction Waste

Management, for list of managed materials and submittal requirements.

3. Statement of the measures taken to reduce air with dust and particulate matter.

1.06 QUALITY ASSURANCE

A. Qualifications

1. Company specializing in performing the Work of this Section shall have a minimum of 3 years experience and shall have worked on 3 projects of similar size.

2. Preparation of details of sheeting, shoring, bracing and underpinning, as well as mechanical demolition, shall be under the direct supervision of and bear the seal of a Licensed Professional

Engineer of the State of New York experienced in the design of such work, who shall also be responsible for construction supervision of such.

3. Refrigerant Recovery Technician Qualifications:

Certified by EPA-approved certification program.

B. Regulatory Requirements

1. b. Provide proof of Refrigerant Recovery

Technician qualifications

Work of this Section shall conform to all requirements of the NYC Building Code and all applicable regulations and guidelines of all

NYCSCA BUILDING DEMOLITION 02060 - 4

05/15/15 DESIGN NO. ______ governmental authorities having jurisdiction, including, but not limited to, safety, health, and anti-pollution regulations. Where more stringent requirements than those contained in the Building

Code or other applicable regulations are given in this Section, the requirements of this Section shall govern.

2. Work outside the street line shall conform to the requirements of the governmental authorities or utilities having jurisdiction (i.e. DOT, DEP, etc.). Where more stringent requirements than those provided by the applicable governmental authority are given in this Section, the requirements of this Section shall govern.

3. Conform to the requirements of "Safety and Health

Standards, Subpart P - Excavations, Trenching and

Shoring" - OSHA.

1.07 CONDITION OF PREMISES

A. The Contractor shall accept the existing conditions of the premises and shall clear the site, as specified.

The Authority assumes no responsibility for the condition or the contents of the building(s) on the premises covered by these Specifications, nor the continuance in the condition existing at the time of the Invitation for Bids or thereafter. All damage or loss, whether by reason of fire, theft, or by other casualty or happening, to the building(s) covered by the Specifications shall be at the risk of the bidder from and after the date of award of Contract, and no such damage or loss shall relieve the successful bidder from any obligation under this Contract to complete all Work as herein provided.

B. The Authority accepts no responsibility for existing conditions at variance with information shown on the drawings.

C. There is no guarantee by the Authority that the number of fixtures, amount of equipment or any other material of value now existing in the building(s) to be demolished will be present in the buildings when they are demolished. The Contractor shall have no claim against the Authority because of the absence of such fixtures and materials.

1.08 MAINTENANCE OF TRAFFIC

A. The Contractor shall conduct demolition operations and removal of debris in a manner that ensures minimum interference with streets, sidewalks and other adjacent

NYCSCA BUILDING DEMOLITION 02060 - 5

05/15/15 DESIGN NO. ______ areas, existing buildings or facilities or those under construction.

3

B. Do not close or obstruct streets, sidewalks, alleys or passageways, unless there shall have been first obtained all necessary municipal or other local permits therefor. Store or place no materials whatsoever in streets, alleys or passageways. Conduct operations as to interfere as little as possible with the use ordinarily made of any roads, streets, driveways, alleys, sidewalks, and other means of access and egress.

C. The Contractor shall provide, and maintain, at

Contractor's own expense, all lights, barriers, sidewalk sheds, and other items that are required by traffic regulations or local law.

PART 2 - PRODUCT

2.01 MATERIALS

A. Restricted Material

Remove all debris not explicitly designated to be salvaged (to remain) from the premises and legally dispose of away from premises, except where permitted by paragraph B below. The expense of removing such material, and the value thereof, shall be taken into consideration at the time of making the bid.

B. Reuse of Clean Masonry and Concrete

Clean masonry and concrete in small pieces, resulting from the demolition of the building, may be used as fill. The pieces shall be broken into 4” maximum size units. This fill shall be leveled off evenly, to within 6" of final grade. The remaining fill shall be clean earth as specified in Section 02200.

C. Fill and Backfill

Refer to Section 02200.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Prior to commencing demolition Work, do the following:

4 1. Thoroughly inspect and examine the building and premises for any hazardous materials. If any asbestos or other hazardous material is found other than what is included in the Contract and

NYCSCA BUILDING DEMOLITION 02060 - 6

05/15/15 DESIGN NO. ______ was to be removed as per other Sections, notify the Authority immediately and do not commence the

Work until receipt of written notification from the Authority. Comply with all applicable regulations, laws, and ordinances concerning removal, handling, and protection against exposure or environmental pollution. Refer to Section

02081 for the removal of asbestos, which is to occur prior to the demolition Work.

2. Visually inspect and photograph the adjacent areas, and structures and appurtenances of the surrounding properties. Record the existing conditions; submit all information to the

Authority's Representative.

3. Thoroughly examine the building for any of the following: Historical artifacts, including cornerstones and their contents; plaques and tablets; and other remaining articles of historic significance. If any is found (either prior to commencing demolition or during demolition Work), carefully remove, clean, and deliver to the

Authority's Representative. These items will be retained by the Authority.

4. Before demolition has commenced, the Authority's

Representative, along with the Contractor, will inspect the building(s) and the premises and identify equipment, materials, and items desired to be retained by the Authority in addition to those items already indicated to be salvaged. The

Contractor shall remove such equipment, materials and items either before demolition or during the process of the Work and store and protect on the

Site in a location designated by the

Representative.

5. Items of salvageable value that are not desired to be retained by the Authority or the Department of

Education are to become the property of the

Contractor and may be removed from the structure as Work progresses. Transport salvageable items from site as they are removed. Storage or sale of removed items on site will not be permitted.

6. As per Section BC 3306.3.1, no demolition operations shall commence unless the Contractor or permit holder notifies the Department of Building via phone or electronically within 24 to 48 hours prior to the commencement of such work. The

Contractor shall preserve and protect from damage any adjoining structures.

NYCSCA BUILDING DEMOLITION 02060 - 7

05/15/15 DESIGN NO. ______

3.02 PREPARATION AND PROTECTION the existing conditions of all adjacent buildings in a pre-construction survey.

A. Employ a certified exterminator and treat building(s) in accordance with governing regulations for rodent and insect control. Submit certificate to the

Authority.

7. As per Section BC 3306.3.2, the Contractor shall provide written notice to owners of adjacent building not less than 10 days prior to the scheduled starting date of demolition. The written notice shall describe the work, timeframe and schedule and contact information of the contractor and of the department. No demolition shall commence until the Contractor has documented

B. Protect structures, underground utilities and other construction to remain from damage caused by demolition operations. If unmarked or unknown utilities are uncovered during excavation, notify the Authority and the Engineer of Record to receive further instructions prior to proceeding further. Should damage to adjacent construction or utilities occur due to Work under this

Section, all costs in connection with the repair of such damage and the restoration of damaged construction to its original condition shall be borne by the

Contractor.

C. Protect materials and surfaces and structure, which are to remain, from damage; if damage occurs, repair or replacement shall be made by the Contractor, to the satisfaction of the Authority, and at the expense of the Contractor.

D. Monitoring and Vibration Control

5

1. Provide surveyed elevation benchmarks and accelerometers on adjacent structures before commencing work when structures are adjacent to demolition operations. Record and report elevation of each benchmark daily. Monitor accelerometers regularly while each heavy demolition is proceeding.

2. Should benchmark readings indicate displacement or accelerometers exceed normally acceptable limits for particle velocity (maximum allowable peak particle velocity at the lot line shall be 0.5 inches per second), halt operations until corrective action has been provided and is acceptable to the Authority.

NYCSCA BUILDING DEMOLITION 02060 - 8

05/15/15 DESIGN NO. ______

3. The Contractor shall record the condition of façade elements of nearby buildings so as to establish the status of those buildings prior to the work. Record all signs of distress (eg., cracks, shifting parapets, settlement, etc. in those buildings by written description backed by photos. During the demolition operations, monitor the structures and record observations (ie., apparent changes in the condition of the buildings). If conditions are noted to be changing, revise demolition procedures. Upon completion of the demolition, submit a final report highlighting the changes in the neighboring buildings that may have been observed.

E. Protection of Adjoining Property

1. Comply with Section BC 3306.

2. The Work of demolishing the building(s) and structure(s) shall be carried on in a manner that will ensure adjacent property against any damage that might occur from falling debris or other cause and so as not to interfere with use of adjacent buildings and structures or the free and safe passage to and from the buildings and structures.

3. All work adjacent to occupied buildings that may produce fire hazards or create nuisances or safety and health hazards from noise, vibration, gases, vapors, fumes, dust mists or odors shall not be performed unless preventive controls or measures including, but not necessarily limited to, those shown on the Contract Drawings and/or as specified within this Specification are implemented.

Special attention is brought to adjacent building fresh air intakes, air conditioning units, etc., which need protection from dust during demolition.

Protective procedures shall not begin until reviewed by the Authority. Such review shall in no way relieve the Contractor from his responsibility to execute the work in a safe manner and in accordance with all applicable

Federal, State and local requirements.

4. The Contractor shall take every precaution to guard against any movement or settlement of adjacent buildings, streets, sidewalks and embankments, caused as a result of this Work. The

Contractor shall be solely and entirely responsible for the safety and support of such buildings, and shall be solely liable for any such movement or settlement and any damage or injury

NYCSCA BUILDING DEMOLITION 02060 - 9

05/15/15 DESIGN NO. ______ caused as a result of this Work. During demolition and grading Work, protect all existing walks that are to remain by a system of permanent shoring and bracing designed by a qualified New

York State professional engineer engaged by the

Contractor, at the Contractor's expense. The shoring and bracing shall be furnished and installed by the Contractor in accordance with the applicable provisions of the N.Y.C. Building Code and shall be adequately anchored and braced to resist earth and hydrostatic pressures. The system of shoring and bracing shall remain in place after completion of all work under the contract and shall be the property of the

Authority. Ensure that after all rainstorms all sides or slopes of excavations are inspected as per Section BC 3304.5.1 and safe conditions restored.

5. Shoring and Bracing a. The Contractor shall engage the services of a third party Registered Professional Engineer

(not a direct employee) to prepare details of underpinning, bracing, sheeting, sheet piling, shoring, and other construction required for protection of excavations and support of adjacent properties or buildings.

These drawings shall be submitted to the

Engineer of Record for general review, which does not relieve the Contractor's Engineer of responsibility for the adequacy of the design. b. The Contractor's Engineer shall file Form

PW-1 with the Building Department, thereby becoming the Engineer of Record for such protection work and is responsible for stability of all underpinning, slopes and bracing and for preparation of all design and shop drawings and their approval by the

Building Department prior to obtaining a permit. The SCA will engage a Special

Inspection Agency to perform the Special

Inspection described in Sections BC 3304.4,

BC 3304.5, BC 1704.20.1, BC 1704.20.2, and

BC 1704.20.3.

6

6. Materials: Provide shoring and bracing material that will support loads imposed. Materials need not be new, but in serviceable condition.

If wood is part of shoring system, use approved pressure-preservative treated materials.

NYCSCA BUILDING DEMOLITION 02060 - 10

05/15/15 DESIGN NO. ______

7. Installation a. Shoring system retaining earth on which the support or stability of existing structures is dependent must be left in place at completion of the Work.

If necessary to move a brace, install new bracing prior to removal of original brace. b. Maintain bracing until structural elements are rebraced by other bracing or until permanent construction is able to withstand lateral earth and hydrostatic pressures. c. Repair or replace, as acceptable to the

Authority, adjacent Work damaged or displaced through the installation or removal of shoring and bracing work. d. If at any time the safety of any adjacent building or structure shall appear to be endangered, the Contractor shall cease operations, and at the Contractor's own expense, take all proper means to support such building or structure and shall not resume operations until permission has been secured in writing from the Authority. e. The Contractor shall take every precaution to guard against the movement, settlement or collapse of adjacent property, and shall promptly repair such damage. f. Any roofing, cornice, leader pipe, or other existing arrangement for protection of a building against the elements, which is to be cut or disturbed by the removal of the adjoining building(s), is to be properly repaired and rendered serviceable for the purpose for which it is intended.

8. A safety zone approved by the Commissioner of

Buildings shall be provided around the demolition area. Fences shall be erected to prevent persons other than workers from entering. They shall be at least 8 feet high, solid, with plastic panels at viewing openings.

9. The Contractor or permit holder shall notify the

N.Y.C. Department of Buildings via phone or electronically at least 24 hours but no more than

48 hours prior to commencement of work and the

NYCSCA BUILDING DEMOLITION 02060 - 11

05/15/15 DESIGN NO. ______

11

10. Where the waterproof integrity of an adjoining wall or building has been impaired due to construction or demolition, the Contractor shall provide all necessary measures to permanently waterproof the adjoining building. adjoining property owner in writing not less than

10 days prior to the starting date, providing a description of the work, timeframe and schedule and contact information of the contractor and of the department.

12 a. All work required for structural stability and permanent waterproofing of adjacent building must be completed prior to demolition sign-off. b. At the completion of demolition operations, unless new construction is to follow within three months of the demolition, the site shall be graded, drained, or otherwise protected.

11. Whenever any building is to be constructed or demolished above the roof of an adjoining building, the Contractor is to protect the roof, skylights, chimneys and other roof outlets of the adjoining building from damage.

F. Salvageable Improvements

7

1. Carefully remove and protect all items to be saved and reused as indicated on Drawings. Replace any items that are damaged by removal at own cost.

2. Notify the Authority in writing of any item that is damaged prior to removal so that they may ascertain the item's condition.

9

3. The items, equipment and materials listed in this

Paragraph shall be removed and salvaged by the

Contractor for future use by the Department of

Education. Deliver the items to the appropriate shops in the Division of School Facilities,

Central Shops building, 44-36 Vernon Blvd., Long

Island City, NY, and obtain written receipts for all items. Salvage items shall include: a. ___________

G. Precautions

1. The work of demolition shall be carried on in every respect in a thorough and workmanlike

NYCSCA BUILDING DEMOLITION 02060 - 12

05/15/15 DESIGN NO. ______ manner. The Contractor shall provide all materials, labor and machinery necessary and shall place proper and sufficient guard and fences and warning signals by day and by night for the prevention of accidents. The Contractor shall indemnify and save harmless the Authority, the

Department of Education, the City of New York, its officers, agents and servants and each of them against any and all suits and actions, claims and demands of every name and description brought against it, them, or any of them against and from all damage and costs to which it, they or any of them may be put by reason of injury to the person or property of another, resulting from negligence or carelessness in the performance of the Work, or in guarding the same, or from any improper or defective material or machinery, implements, or appliances used in the removal of said buildings.

2. All reasonable precautions shall be taken against fire throughout all the Contractor's operations.

The amount of inflammable material shall be reduced to a minimum consistent with the proper handling and storing of materials. Provisions shall be made for the extinguishing of fires, as required by the Fire Department. The Contractor shall not permit any fires to be built except as otherwise provided herein, or open salamanders to be used in any part of the Work, except those that may be required during winter weather in approved salamanders, and then only under the Contractor's continuous supervision.

3.03 DEMOLITION WORK

A. Demolition operations shall be performed in a systematic manner in accordance with Section BC 3306.

B. Do not bring explosives to site or use explosives without written consent of authorities having jurisdiction. Such written consent will not relieve

Contractor of total responsibility for injury to persons or for damages to property due to blasting operations.

C. Removal, renting, transportation, storage and disposal of flammable, explosive, toxic, and corrosive substances, if any, shall be done in strict compliance with governing regulations before proceedings with building demolition.

D. Notify NYC Department of Environmental Conservation of the presence of out-of-service storage tanks in accordance with 6 NYCRR Part 613.9.

NYCSCA BUILDING DEMOLITION 02060 - 13

05/15/15 DESIGN NO. ______

8

E. Demolish all of the material of the building(s), walks, entrance steps, structures, asphalt and concrete paving, apparatus, fixtures, conduits, foundation, stoops, basement slabs, railings, metal flues, storage tanks and basins on or under the site, and all such items extending beyond the building lines, except the sidewalks and curbs at street of such building. Use such methods as required to complete work within limitations of governing regulations. Fences and walls on or near property lines shall not be removed if these are used for protection or support of adjoining property.

8 F. Walls and foundations shall be removed in their entirety, unless indicated otherwise on the Drawings.

G. Wetting Down

1. During the demolition of the building(s), thoroughly wet down the Work to prevent any dust and dirt from rising; the Contractor shall provide water line for this purpose and furnish all connections that may be required, at Contractor's own cost and expense.

2. Upon completion of the Work, all temporary water or other lines installed by the Contractor shall be removed by the Contractor at Contractor's own cost and expense. Do not use water when it may create hazardous or objectionable condition such as ice, flooding and pollution.

H. Utility Lines

1. Contractor shall completely remove all utilities from the existing buildings.

2. The Contractor shall withdraw and remove all abandoned water taps and old service mains and provide inserted brass plugs in the main water pipe in the streets in compliance with the rules and regulations of the Department of Environmental

Protection-Bureau of Water Supply and shall furnish to the Authority a certification from the

Bureau of Water Supply certifying that this Work has been performed.

3. The Contractor shall remove all house connections to the main sewer in the streets and the openings in the main sewer shall be properly closed in compliance with the directions of the Department of Environmental Protection-Bureau of Sewers having jurisdiction in the respective Borough, and

NYCSCA BUILDING DEMOLITION 02060 - 14

05/15/15 DESIGN NO. ______ shall furnish to the Authority a certificate from the Bureau of Sewers certifying that the Work had been properly performed.

4. The Contractor shall remove all gas services back to the main gas lines in the streets and the openings in the main gas lines shall be properly closed in compliance with the directions of the utility company having jurisdiction in the respective borough, and shall furnish to the

Authority a certificate from the utility company having jurisdiction certifying that the Work has been properly performed.

5. The permits for all openings in streets shall be obtained by and at the expense of the Contractor.

The Contractor shall pay for all openings in streets and sidewalks, and for repair of such openings, and the Work shall comply with the rules and regulations of the Department of

Transportation-Bureau of Highways.

6. Electric, telephone and other wires shall be disconnected in strict accordance with the rules and regulations of the Department of the City or

State and of the company or companies having jurisdiction, control or ownership of such utilities. After disconnection has been completed, telephone poles located on the property shall be removed by the utility having jurisdiction over the poles.

I. Immediately remove all excess debris resulting from the operations under this Contract from the site, do not store or permit to accumulate on the site. If the

Contractor fails to remove excess debris promptly, the

Authority reserves the right to have it removed from the site at the expense of the Contractor.

J. Routine Cleaning: The Contractor shall keeps adjacent streets and properties free of dirt, dust and debris produced by demolition at all times.

K. Where mechanical demolition equipment is used for demolition of a building or the removal of debris or to move material, Drawings of such work must be filed and approved with the Building Department prior to issuance of permit. The Contractor shall engage the services of a third party Registered Professional Engineer (not a direct employee) to prepare the details and sequencing of the demolition complying with all items included in

Section BC 3306.5. The Contractor's Engineer shall file Form PW-1 with the Building Department, thereby becoming the Engineer of Record for such demolition

NYCSCA BUILDING DEMOLITION 02060 - 15

05/15/15 DESIGN NO. ______ work. The SCA will engage a Special Inspection Agency to perform the Special Inspection described in Sections

BC 3306.6 and BC 1704.20.4.

3.04 DISPOSAL

A. Transport and legally dispose of materials. If hazardous materials are encountered during demolition operations, comply with applicable regulations, laws, and ordinances concerning removal, handling, and protection against exposure or environmental pollution.

L. When existing sprinkler systems with Siamese hose connections are present in structures undergoing demolition, they shall be maintained as a non-automatic sprinkler system. Sprinkler risers shall be capped immediately below the floor being demolished maintaining the sprinkler systems on all lower floors for Fire Department use.

B. Burning of wood or other material is not permitted on the site.

3.05 FIELD QUALITY CONTROL

A. Inspection

C. Comply with requirements for managed waste in accordance with Section S01524, Construction Waste

Management.

1. Mechanical Demolition and the construction and installation of all underpinning, shoring and bracing required for or affecting the support and adjacent properties or buildings is subject to

Special Inspection.

2. Underpinning: The Special Inspector is responsible for inspection of underpinning in accordance with Section BC 1704.

20.3.

Contractor’s licensed professional engineer is to file all design documents as specified in Article

3.02 of this Section.

3. Excavation - Sheeting, Shoring, and Bracing: The

Special Inspector is responsible for inspection of underpinning in accordance with Sections

BC 1704.20.3 and BC 3304.4.1. Contractor’s licensed professional engineer is to file all design documents as specified in Article 3.02 of this Section.

NYCSCA BUILDING DEMOLITION 02060 - 16

05/15/15 DESIGN NO. ______

4. Mechanical Demolition: The Special Inspector is responsible for inspection of Mechanical

Demolition in accordance with Sections

BC 1704.20.4 and BC 3306.6. Contractor’s licensed professional engineer is to file all design documents as specified in Article 3.03 of this

Section.

3.06 CLEAN-UP

A. Upon completion of Work under this Contract, the

Contractor shall remove all tools and materials, plant, apparatus, rubbish and debris and shall leave the premises clean, neat and orderly.

HB:MF:mf:gr

END OF SECTION

Notes to Specifier (Delete from Specifications)

1. Stipulate if asbestos abatement by others or included in this

Contract. (Refer to Section 02081, if included).

2. Edit this Section as required for nature and extent of demolition work.

3. The decision to reuse the construction debris is to be carefully considered. If the building is to be demolished in preparation for new construction of a building at a later date, it is acceptable to reuse. Modify Section 02200 to not require the backfilling with the remaining material to be done in controlled lifts. However, if it is to be potentially used for a playground, call for the removal of all material and refer to Section 02200 for all filling and backfilling. There may be cases where it makes sense for parts of the site to be permanently backfilled and parts to use the rubble if it will soon have to be excavated out.

These should be delineated on the Drawings and revise the paragraph to read that the rubble material is acceptable for the portions of the site indicated on the Drawings.

4. Environmental Investigation may result in other hazardous items, including fuel tanks. Refer to those Sections.

5. Determine whether vibration monitoring is required for the

Project. Consider proximity to other structures.

6. Evaluate materials to be used for shoring and bracing based on anticipated duration of use. Steel might be preferable to wood if it is expected to be in place for an extended period of time.

7. Identify salvage items on the Drawings, or list them herein.

NYCSCA BUILDING DEMOLITION 02060 - 17

05/15/15 DESIGN NO. ______

8. Ensure that items indicated are desired to be removed. If less than the total building foundation is to be removed, clearly show it on the Drawings.

9. For all projects involving the demolition of existing school buildings, obtain from the Department of Education a written list indicating specifically any items which should be salvaged from that building. Contact the Area Manager of

Central Shops for the list. The list must also include the location for delivery of the items. Specify the items to be salvaged in this paragraph, and add the location for delivery if it is not the Central Shops. Delete the paragraph if the Department of Education determines that no items are to be salvaged.

Salvageable items may include equipment such as locksets, door closers and stops, elevator parts, intercom and public address systems, burner/boiler equipment, air compressors & tanks, air dryers, vacuum/condensate pump equipment, fuel oil transfer pumps/heater sets, refrigeration equipment, deck type sump pumps, motors/starters, flat leather belting, thermostats/pneumatic valves, fire alarm equipment, emergency lighting units, exit lights, automatic switches, and other mechanical and electrical equipment.

10.

Omit for projects where NYC Green Schools Rating System compliance is not required (Typical of CIP projects, UPK

Center conversions and fit-outs ). Verify for referenced project. Note that references elsewhere to Construction

Waste Management are to remain as it is the Authorities intent to recycle building demolition debris to the maximum extent possible.

11. Confirm that the Drawings and Specifications indicate all

Work necessary to maintain the weatherproof and waterproof integrity of adjoining buildings. Building walls exposed by demolition are typically unfinished and will require remedial work. The designer is responsible for investigating existing masonry, cornices, parapets, flashing, roofing, foundations, wall openings, etc. and for including the required weatherproofing work and repairs in the bid documents.

12. Indicate the required grading based on the duration between the building demolition and the installation. If a separate contract, grading must be indicated.

* * *

NYCSCA BUILDING DEMOLITION 02060 - 18

05/15/15 DESIGN NO. ______

LIST OF SUBMITTALS

SUBMITTAL

Shop Drawings & Calculations

DATE SUBMITTED DATE APPROVED for Mechanical Demolition,

Shoring & Bracing:

1. Shop Drawings

2. Calculations

Schedule:

______________

______________

_____________

_____________

1. Demolition Sequence

2. Insect & Rodent Control Scheme

3. Pollution Control Scheme

______________ _____________ Reports:

1. Existing Condition Survey

2. Final Vibration Control Reports

Certificates:

1. Bureau of Water Supply

2. Bureau of Sewers

3. Gas Utility Company

Qualifications:

1. Contractor

2. Professional Engineer

3. Refrigerant Recovery Technician.

Sustainability: ______________ _____________

1. Refrigerant Recovery Statement

2. Demolition waste calculations.

3. Air with dust and particulate matter reduction statement.

* * *

NYCSCA BUILDING DEMOLITION 02060 - 19

Download