MODIFICATION
66 -- Request For Proposal for Steel Beamline Shielding Enclosures - Dwg A-401-N - Dwg A-402-N - ECN NO. CP6-ECN-33
- Notice Date
- 5/20/2011
- Notice Type
- Modification/Amendment
- NAICS
- 335999
— All Other Miscellaneous Electrical Equipment and Component Manufacturing
- Contracting Office
- Department of Energy, Brookhaven National Laboratory (DOE Contractor), Brookhaven, PO Box 5000, Bldg. No. 355, Upton, New York, 11973
- ZIP Code
- 11973
- Solicitation Number
- 193588
- Archive Date
- 6/16/2011
- Point of Contact
- George R Woods, Phone: 631-344-2223
- E-Mail Address
-
gwoods@bnl.gov
(gwoods@bnl.gov)
- Small Business Set-Aside
- N/A
- Description
- ECN NO. CP6-ECN-33 Dwg A-402-N Dwg A-401-N Amendment #1 This amendment #1 to RFP 193588 is issued to provide answers to offeror generated questions. Specifically this RFP is modified as follows: The following Offeror generated questions and corresponding answers are provided. Question #1 The drawing PD COM HU 2100 Rev A shows a guillotine for a lead shielding enclosure. See section 3.2.3 of specification; can you confirm the thickness of the lead that we have to fix on the downstream enclosure? Answer #1 Unless otherwise indicated in the enclosure drawings or in Appendix 1 of the Specifications, the lead beamstop requirements (including dimensions) are specified in section 3.2.3. Guillotine requirements are specified in section 3.10 (in particular, reference section 3.10.4). To add further clarification, if lead is used for the guillotine blades, the total thickness of lead (in each set of guillotine blades) must minimally be half the required thickness of steel guillotines of the wall to which it is attached. Alternately, if steel is used for the guillotine blades, the total thickness of steel for the guillotine blades must be equal to or greater than the required thickness of steel of the wall to which it is attached. If lead is used for guillotine blades, please note that the requirements of section 3.1.3.2 apply. Question #2 The steel panels forming the walls of the enclosure, we have to do a frame steel like for the lead shielding enclosure, but concerning the steel panels, must they be manufactured with a single size steel as the lead without weld? these panels steel must they be of one piece? example size, height 3500mm* width 1000mm * thickness 6mm Answer #2: All enclosures must be built to withstand the roof loads specified in section 3.4.3 with adequate margin of safety. Additionally the walls shall be built with UniStrut attachments as specified in section 3.5. The walls must have sufficient strength to support the specified roof loads and to support reasonable loads applied by attachments to the internal and external UniStrut specified in section 3.5. Walls shall also meet minimum steel thickness requirements in all locations and shall be designed to assure adequate radiation protection (i.e. with no radiation leakage). The loads from attachments to UniStrut mounted on the walls have not been specified by BSA. Contractors should make conservative assumptions during the RFP phase. Additionally, section 4.1 specifies that enclosures shall be "visibly appealing" so that BSA will be proud to display the completed enclosures to visitors from around the world. Contractors are therefore not otherwise constrained in their design approach (i.e. integral or separate framing) as long as the completed product can be safely transported, assembled, and meets all of the requirements detailed within the Specifications and Statement of Work, including those mandated by New York State Building Code, NFPA, OSHA, and all other codes referenced. Question #3 3-ID-C enclosure (reference drawing PD-HXN-HU-1310 RevA); details B and C: Who is to supply the steel sleeves? Is it the responsibility of the shielding contractor or the company supplying the concrete enclosure? It appears that these steel sleeves are to be cast in place in concrete. Answer #3 Details B and C show sleeves that are cast in place by the concrete building contractor. They do not need to be supplied by the steel hutch contractor. Question #4 3-ID-C enclosure. Please provide details for openings around doors for interface of metal doorframes to concrete. Answer #4 Note 2 of drawing PD-HXN-HU-1310 references vendor drawings A-401-N and A-402-N, neither of which was available at the time of this solicitation. These drawings along with ECN No. CP6-ECN-33 Dated 4-26-2011 are being provided separately as an attachment and are available for download from this website. Except as noted herein, all requirements as set forth in RFP solicitation request 193588 remain unchanged. Any questions should be addressed in writing to the attention of George Woods.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DOE/BHL/BNL/193588/listing.html)
- Place of Performance
- Address: Brookhaven National Laboratory, Upton, New York, 11973, United States
- Zip Code: 11973
- Zip Code: 11973
- Record
- SN02453312-W 20110522/110520234801-8938425b9658f4a19bf53d134fe0bdfd (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
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