SELECTIVE DEMOLITION AND RECONSTRUCTION

SELECTIVE DEMOLITION AND RECONSTRUCTION


PART 1 -- GENERAL

1.01     SUMMARY

Division 0, Contract requirements and Division 1, General Conditions apply to this section.

1.02     SCOPE OF WORK

A.         Work included:

1. Carefully demolish and remove from the site those items scheduled to be so demolished and removed.   Furnish materials and perform labor required to execute this work as required by the Drawings and/or as specified and as necessary to complete the Contract, including, but not limited to, these major items:

a.         Protection of existing work to remain.

b. Barricades, lights, signs and safety precautions required by governing codes.

c. Removal and disposition of all material resulting from this work, except materials to be stored for Owner.

d.         Patching as necessary to match existing.

e.         Saw-cutting existing concrete and asphalt concrete.

f. Protection of existing vegetation or shrubbery to remain.

g. Cleaning existing items to remain.

h. Relocation of existing items as necessary to provide for new construction and as required by the Drawings.

i. Removal  and/or  relocation  of  utility  lines  (water,  electric,  sewer)  as required by the Drawings, and such lines not shown but encountered in the course of the work.

j.           Removal and/or relocation of existing irrigation lines.


B.         Related work:

1. Documents affecting work of this Section include, but are not necessarily limited to Special Conditions, and Sections in Division 1 of these Specifications.

2.         All new work.

1.03     GENERAL REQUIREMENTS

A.         Codes:    Perform  all  work  in  accordance  with  the  Codes  listed  in  1.33  of  General
Conditions and as required by local governing authority.

B. All bidders submitting bids for this work shall first examine the site and all conditions and limitations thereon and thereabouts.  Bid shall take into account all such conditions and limitations, whether or not the same are specifically mentioned in any of the contract documents and every bid shall be construed as including whatever sums are needed to complete the work in every part as shown, described, or reasonably required or implied, and  attain  the  completed  conditions  contemplated  by  the Contract.   The demolition drawings, including demolition work shown on construction drawings, shall be considered as a guide only.   The exact extent of the demolition and reconstruction work shall be determined by a site visit and investigation.

C. Partial removal:  Items scheduled to be removed and of salvageable value to Contractor, excluding those items to be retained by the Owners, may be removed from the structure as work progresses. Salvaged items must be transported from site as they are removed.

1.         Storage or sale of removed items on site will not be permitted.

D. Noise control:   Carry on all work in a manner which will produce the least amount of noise. Instruct all workmen in noise control procedures.

E. Items of existing work indicated to remain upon completion of the Contract, but which require removal to complete the work, shall be carefully removed and replaced upon completion.  The replaced work shall match its condition at the start of the work.

1.04     QUALITY ASSURANCE

Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary  crafts  and  who  are  completely  familiar  with  the  specified  requirements  and  the methods needed for proper performance of the work of this Section.

1.05     SUBSTITUTIONS

Substitutions will be considered.

1.06     SUBMITTALS

A.         In accordance with Article 6.13 of the General Conditions.

B. Schedule:  Submit proposed methods and operations of building demolition to Architect for review prior to start of work.  Include in schedule coordination for shut-off, capping, and continuation of utility services as required.

PART 2 -- PRODUCTS

As necessary for proper completion of this Work.

PART 3 -- EXECUTION

3.01     SURFACE CONDITIONS

Examine the areas and conditions under which work of this Section will be performed.  Correct conditions detrimental to timely and proper completion of the Work.   Do not proceed until unsatisfactory conditions are corrected.

3.02     GENERAL PROVISIONS

A By  careful  study  of  the  Contract  Documents,  determine  the  location  and  extent  of selective demolition to be performed.

B In company with the Architect and Owner, after receiving Notice to Proceed, visit the site and verify the extent and location of selective demolition required.

1.         Carefully identify limits of selective demolition.

2. Mark interface surfaces as required to enable workmen also to identify items to be removed and items to be left in place intact.

C. Take  into  consideration  as  necessary  work,  all  obvious  existing  conditions  and installations on the site as though they were completely shown or described.  Accept the site of the work as it exists and clear obstructions to the work shown.


D. Examine the site and all conditions and limitations thereon and thereabouts.  Take into account  all  such  existing  conditions  and  limitations  whether  or  not  the  same  are specifically shown or mentioned in any of the Contract Documents and include whatever is needed to complete the work in every part as shown, described or reasonably required or implied to attain the completed condition contemplated by the Contract.

E.         Prepare and follow an organized plan for demolition and removal of items.

1. Shut off, cap, and otherwise protect existing public utility lines in accordance with the requirements of the public agency or utility having jurisdiction.  Review plans, and confer with the Architect, to determine which lines are to be abandoned and which are to be kept active.

2. Completely remove items scheduled to be so demolished and removed, leaving surfaces clean, solid, and ready to receive new materials specified in other Sections of these Specifications.

3. In  all  activities,  comply  with  pertinent  regulations  of  governmental  agencies having jurisdiction.

F. Demolished material shall be considered to property of the Contractor and shall be completely removed from the job site.  Do not store or permit debris to accumulate on the site.  Burning of removed materials from demolished operations will not be permitted on site.

3.03     POLLUTION CONTROLS

A. Use temporary enclosures and other suitable methods to limit dust and dirt rising and scattering in air to lowest practical level.  Comply with governing regulations pertaining to environmental protection.

1. Do not use water when it may create hazardous or objectionable conditions such as ice, flooding, and pollution.

B. Clean  adjacent  structures  and  improvements  of  dust,  dirt,  and  debris  caused  by demolition operations, as directed by Architect or governing authorities.  Return adjacent areas to condition existing prior to start of work.

3.04     PROTECTION

A. Site security:  Erect wire or solid wood fences, barricades, warning lights and signs as required by the governing building code, to protect all manner of person from injury, to prevent trespassing, and to prevent theft or damage to the work.

B. Protection  of  work  to  remain:    Use  stakes,  barricades,  and  such  other  means  of protection as required to prevent damage to existing work and equipment to remain.

C.    Protect all landscaping scheduled to remain.

D. Ensure safe passage of persons around area of demolition.   Conduct operations to prevent injury to adjacent buildings, structures, other facilities, and persons.

1. Erect  temporary  covered  passageways  as  required  by  authorities  having jurisdiction.

2. Provide interior and exterior shoring, bracing, or support to prevent movement, settlement or collapse of building structure to remain.

3.05     TRAFFIC

A. Conduct demolition operations and removal of debris to ensure minimum interference with roads, streets, walks, and other adjacent occupied or used facilities.

B. Do  not  close  or  obstruct  streets,  walks  or  other  occupied  or  used  facilities  without permission from authorities having jurisdiction.  Provide alternate routes around closed or obstructed traffic ways if required by governing regulations.

3.06     UTILITY SERVICES

A. Maintain existing utilities, keep in service, and protect against damage during demolition operations.

B. Do  not  interrupt  existing  utilities  serving  occupied  or  used  facilities,  except  when authorized in writing by authorities having jurisdiction.  Provide temporary services during interruptions to existing utilities, as acceptable to governing authorities.

3.07     REPLACEMENTS

A. In the event of demolition of items not so scheduled to be demolished, promptly replace such items to the acceptance of the Architect and at no additional cost to the Owner.

B. Patch and fill holes caused by removal of piping and conduit in concrete slabs, and concrete walls with 3,000 psi concrete; level flush with adjacent surfaces.

3.08     ASPHALT CONCRETE PAVEMENT

All asphalt concrete pavement damaged, cut, trenched, etc. and any base material under the pavement shall be replaced and/or repaired using same specifications as existing pavement.

3.09     REMOVED MATERIALS TO BE SALVAGED OR REUSED

A. Materials to be salvaged will be noted as such on the Construction Drawings.  Existing Vertical blinds shall be included in salvage.   Where room sizes match blind sizes, Contractor to include reinstallation of blinds as directed by Owner.   Blinds shall be cleaned prior to reinstallation.

B. Exercise extreme care when removing materials to be salvaged or reused.   Use only mechanics skilled in the appropriate crafts.

C. Store and protect salvaged materials until needed to be re-installed on the project, or deliver to Owner in good condition.

3.010   DEMOLITION

A. Asphalt Concrete:  Remove existing asphalt concrete and base material scheduled to be removed and prepare surface in accordance with Section 02510.  All edges shall be saw- cut in straight and true lines.

B. Concrete:  Exercise due caution in cutting and/or patching concrete so as not to damage or deface that portion of the existing structure which is to remain.   Should any such impairment occur, immediately clean or restore to original condition at no cost to Owner.

3.011   RECONSTRUCTION - GENERAL

A. By  careful  study  of  the  Contract  Documents,  determine  the  location  and  extent  of reconstruction to be performed.

B. In  company  with  the  Architect,  visit  the  site  and  verify  the  extent  and  location  of reconstruction required.

C.    Inspect existing surfaces to determine required surface preparation procedures.

D. Plumbing and Electrical:  In any case where a new line may tie into and extend existing line within the limits of the reconstruction Work, Contractor shall examine the entire existing line and determine whether the new Work will be adversely affected by it, and notify Architect of any such defect before tying in.

3.012   IN ALL RECONSTRUCTION WORK

Use means necessary to prevent dust becoming a nuisance to the public, to neighbors, and to other work being performed on or near the site.