SOURCES SOUGHT
56 -- DESIGN AND FABRICATE RADIATION SHIELD DOOR
- Notice Date
- 5/4/2007
- Notice Type
- Sources Sought
- NAICS
- 332321
— Metal Window and Door Manufacturing
- Contracting Office
- Department of Energy, National Security Technologies LLC (DOE Contractor), National Security Technologies LLC, PO Box 98521, Las Vegas, NV, 89193, UNITED STATES
- ZIP Code
- 00000
- Solicitation Number
- 174310-TW-07
- Response Due
- 5/18/2007
- Archive Date
- 6/2/2007
- Small Business Set-Aside
- Total Small Business
- Description
- A. Provide materials, workmanship and installation oversight, including joints and fasteners that maintain continuity of RADIATION SHIELDING at all points and in all directions specified in thicknesses and locations indicated. 1. Materials, thicknesses, and configurations indicated are based on RADIATION SHIELDING design prepared by CONTRACTOR?S radiation health physicist. This design is available to SUBCONTRACTOR on request. 2. A minimum of six (6) inches (30 cm) of Thermo Electron Corporation product Poly/Cast # 259 or equivalent encased in at least 1/2? carbon steel or stainless steel (A-36, 300 series stainless). The shield (door) shall overlap the sides of the entryway by approximately eight inches on each side and shall be as close as possible to the components mounted on the wall adjacent to the access. The shield is to be located at the interior equipment airlock door. If hinging the shield is impractical due to anchorage or space requirements, the shield(s) can be on rollers and move on the floor across the entryway opening within the permitted space constraints. The shield shall be built such that in the closed position, it is as close to the floor as practical. The shield may be opened manually, motor driven, or both. 3. The existing blast door is to remain. The shielding shall be designed and constructed so as to not interfere with the existing blast door assembly or working mechanisms. 4. Shielding must be capable of being unlatched and operable by one person. The latch may be a mechanical type latch such as a surface mounted doorbolt. 5. Temperature Requirements: a. Shielding must be fully operational at ambient temperatures from plus 55 degrees Fahrenheit to plus 95 degrees Fahrenheit. 6. Electrical Requirements: a. All wiring connections as required, internal and external, shall be made on labeled terminal blocks. Terminal blocks shall be placed in NEMA 1 enclosures and located adjacent to the doors on the interior of the existing airlock. All wires shall be labeled. b. SUBCONTRACTOR shall provide a mounted ?tongue actuated safety interlock? switch as manufactured by Allen-Bradley model number MT-GD-2. The door shall be reinforced as necessary with a mounting plate to receive the interlock switch and maintain integrity of the shielding. c. Shielding shall be grounded. d. A power failure will not cause the shielding to change its lock/unlock state. 7. Hardware Requirements: Shielding shall have hardware to provide a fully operational and functional shield regardless of whether or not it is specified or shown on the drawings. a. Stops: Wall mounted stops shall be provided at each leaf, as required, to prevent the shield or external accessories from making contact with the adjacent walls or building accessories within the swing radius of the leaf. The design of the unit shall allow for the replacement of the rubber bumper. Frame stops shall be provided at head and jambs only. b. Hinges: Hinges shall be designed to resist reactions associated with normal and seismic loads. They shall be designed to allow the leaf to open approximately 135 degrees. c. Latch devices: Latch devices shall ensure the shield remains closed. d. The leaf(ves) shall be balanced such that they can be open and closed manually by a single person. 8. Anchoring Requirements: Shielding shall be supported on the existing concrete wall with anchoring devices as designed by SUBCONTRACTOR including, but not limited to base plates, anchor bolts and anchors. Reinforcing steel in the concrete walls may not be cut during installation of the anchor bolts for the shield. Anchoring designs must include the provision for a 2? tolerance on anchor bolt positions in any direction. Attachment to existing blast door frames is not permitted. Shield may be hinged and include rollers if required to support the weight of the leaf. 9. Seismic Requirements: The shielding, anchors, and connections shall be designed to resist seismic loading. Horizontal and vertical seismic forces shall act simultaneously on the shield and frame. Assume that excitation is applied along one of two orthogonal horizontal axes and is combined with the vertical direction. Assume shields are open during a seismic incident. For the purpose of seismic design for the shields, assume no other extraordinary forces are acting on the shield at the same time. a. Design Basis Earthquake (DBE) 1) General: Shield shall be designed to resist forces generated by the postulated DBE. a) Maximum Accelerations: East-West Direction = 0.41g North-South Direction = 0.40g Vertical Direction = 0.33g b) Directions are as indicated on reference drawings, Paragraph 1.1.A 2) Structural Response to DBE: Limit the structural response of the shield to prevent the shield from falling off the hinges when in any position. Design the shield such that all stresses remain elastic. The shield shall remain in place when closed. The shield does not need to remain operable; it is only to stay on the hinges.
- Place of Performance
- Address: NEVADA TEST SITE, MERCURY, NEVADA
- Zip Code: 89023
- Country: UNITED STATES
- Zip Code: 89023
- Record
- SN01287671-W 20070506/070504220335 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
| FSG Index | This Issue's Index | Today's FBO Daily Index Page |