Q_A_W91QF426BA011_B246_Elevator.pdf
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- Attached to
- Amendment 01 Elevator Replacement Bldg. 246
- Solicitation number
- W91QF426_Elevator
About this file
This is a Questions and Answers document for federal contract W91QF4-26-B-A011, an elevator modernization project at Building 246, a structure located within a National Landmark Historic District.
The Government has clarified that the originally specified hydraulic, holeless, roped, single-jack, cantilever passenger elevator with 4,500 lb capacity has been changed to an in-ground hydraulic elevator to accommodate the 4,500 lb capacity within the existing 6'11" deep by 8'6" wide hoistway. Asbestos testing results indicate that black mastic was positive on the first floor in the electrical and telecom rooms, while most other materials tested negative throughout the facility. Design submittals will be required for all project aspects without traditional 35%, 65%, 95%, and 100% milestones; mechanical and electrical submissions may be shop drawings, while structural and fire protection drawings must be prepared and signed by a licensed professional engineer with a standard seven-day Government review period. Interior elevator, lobby, door, and finish modifications require Government approval but not National Park Service approval. The existing Monaco M2 fire-alarm system, serviced by DPW, may be modified by the contractor. The existing sump pit and drainage can be reused if compatible with the new elevator, with the contractor responsible for replacing the sump pump. DPW and the fire department will conduct plan review, inspection, and testing. The existing analog emergency communication system will remain analog. Final record drawings must be submitted as AutoCAD or Revit files, with editable Revit backgrounds to be provided by the Government. The contractor becomes owner of the existing elevator for disposal purposes. Fire protection construction drawings must be signed and sealed by a professional engineer.
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Questions and Answers
W91QF4-26-B-A011 Elevator Modernization
Clarification and request for different equipment and capacity. The specs and drawings show you want a Hydraulic, holeless, roped, single-jack, cantilever passenger elevator 4,500 lb capacity, 100 FPM, 3 front openings, 24'3" travel 4,500 lb capacity, 100 FPM, 3 front openings, 24'3" travel with a inside clear opening hoistway of 6'11" deep x 8' 6" wide.
This hoistway would accommodate a 3500lb capacity but not large enough for 4500. Single jack cantilever holess hydraulic elevator can also not handle that travel for 4500 lbs. The manufactures I have reached out to do not offer single cantilever elevators over 3000lb capacities they recommend anything over 3000 to switch to a dual holeless elevator
Answer: The new elevator type has changed to an in-ground hydraulic elevator to maximize the space within the hoist way and stay with the 4,500 lb capacity. Please refer to the revised SOW and new drawings.
Drawings from 2014 indicate possible asbestos in flooring. Has this been remediated within the shaft area and immediately adjacent to the shaft on all floors in the event of required core drilling for electrical work?
Answer: Below is a summary of the tests within the facility.
Basement: Sheetrock, joint compound, cork insulation, and tile & mastic were negative.
Rooms 04, 05, and 07 have records specifically. However, our records have a lot more tile tested and some more drywall/joint compound samples with no specific location in the basement; all were negative.
RM 06 (electrical room): negative for wall mastic, both the brown spongy material and black brittle material.
1st Floor: NW offices: negative for ACM tile/mastic
Electrical room: negative for ACM tile; black mastic was positive
Telecom room: negative for ACM tile; black mastic was positive
Note: drywall/joint compound samples with no specific location were negative
2nd Floor: Stairwell and Kitchenette: negative ACM tile/mastic
Note: drywall/joint compound samples with no specific location were negative
Please identify the required design submittal milestones, Government review durations, drawing and specification formats, and professional registration requirements.
Answer: The Government will require design submittals for all aspects of the project. We will not require typical 35%, 65%, 95%, and 100% submittal milestones. Mechanical and electrical can be shop drawings. Structural and fire protection drawings must be from a licensed professional engineer. The Government typically has 7 days to review submittals.
Building 246 is identified as being within a National Landmark Historic District. Please define the required historic-preservation review and approval process and identify whether interior elevator, lobby, door, or finish modifications require Government or National Park Service approval.
Answer: Interior elevator, lobby, door, and finish modifications will require Government approval. They will not require the National Park Service approval.
Please identify the manufacturer, model, and servicing contractor for the existing fire-alarm system and confirm whether the Contractor may modify and program the system. If Government-approved vendors are required, please provide their contact information.
Answer: The existing system is a Monaco M2. DPW does the service on it.
Please confirm whether the existing pit sump and drainage arrangement may be reused.
Answer: The existing sump pit and drainage arrangement can be reused if there are no issues with the new elevator. The contractor shall replace the sump pump.
Please identify allowable elevator shutdown periods and any phasing, temporary accessibility, or temporary conveyance requirements while Building 246 remains occupied.
Answer: The elevator does not work, so it’ll be shutdown until the new one is working. The contractor will have access to all parts of the building throughout the project.
Please identify the authority having jurisdiction for elevator permitting, plan review, inspection, testing, and certification.
Answer: DPW and the fire department will be responsible for plan review, inspection, and government testing.
Please confirm the required elevator emergency communication system, including whether an existing telephone line is available or whether a new analog, cellular, or network-based connection is required.
Answer: The existing communication system is analog and will stay analog.
Please confirm whether editable AutoCAD files are required for final record drawings. If so, will editable CAD backgrounds of the 2014 record drawings be provided to the successful Contractor?
Answer: AutoCAD or Revit files are required. Editable Revit files will be provided.
Please confirm whether the existing elevator and related equipment become Contractor property for disposal or whether any components must be salvaged and turned over to the Government.
Answer: The existing elevator will become the contractors property for disposal.
Please confirm whether signed and sealed fire-protection construction drawings are required, or whether the design may be limited to fire-protection performance criteria with final sprinkler layouts, shop drawings, and hydraulic calculations delegated to the licensed fire-sprinkler contractor.
Answer: Fire protection drawings must be signed and sealed by a professional engineer.
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