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Answer 1.
The relevant standards are:
For the purposes of constructing the Embedded Beam and Circular Rail, these tolerance standards are not extraordinary if you use typical good workshop practices and achieve the overall dimensional tolerances indicated on the drawings. Any equivalent ANSI / ISO / UNI / AWS standard would be acceptable to the LBTPO. There is not an official correspondence between ISO, UNI and any other standard.
Other ISO standards mentioned in these LBT bidding documents include:
Answer 2. The welding specification (which should be used as a guideline) comes from Section IX of the ASME Boiler and Pressure Vessel Code. EIE has provided the attached Excel document or GIF images ( page 1, page 2, page 3 ) that was intended for Annex A.
Answer 3. Paragraph 8.7 "Surface Treatments" contains the requirements for the definition of the protection type to be proposed. The supplier must identify the products and the interventions (example: touch-up after erection) which are adequate to satisfy the requirements. Specific requirements related to the interventions during and after the erection on site will be treated in separate specifications, which are not part of the present offer. With reference to the last sentence, we state that the machined surfaces shall be protected as indicated in paragraph 10.0 "Packing and Transport". (Document 401e037, the LBT Technical Specification for Packing and Transport, was not included in the present package of bidding information.)
In the particular case of the Circular Rail, it seems that the simplest form of protection for both transportation and erection on site may be to apply the primer coat to the entire rail including the machined surfaces. This layer can easily be removed before the Circular Rail is put in service.
Answer 4. Yes, the regular proposal should include a description of how the requirements of the Statement of Work will be met.
Also section "2.3 Technical Requirements" of the Proposal Format should be amended as follows:
[Discuss the ability of the Respondent to meet the requirements
specified in the Statement of Work. Such discussion will include, at
a minimum, the methodology, equipment, personnel, Subcontractors (if
any) and accuracy involved in such testing, measurement or
verification.]
[Alternate Proposals only: provide a short description of how the work
proposed is different from what is contained in the Statement of
Work.]
2.3 Technical Requirements.
Also, we thought you would like to see the Embedded Beam and the Circular Rail be proof assembled together. Could you please clarify this matter?
Answer 5. Yes, we realize that this is a very tight schedule. The language in the Statement of Work was carefully worded to say "preferred date" and not "absolutely required date". It could be that all vendors will say that the delivery date for the Embedded Beam is impossible to meet. The LBTPO will select the offer which comes closest to meeting our cost, delivery and technical requirements as indicated in Section 8 of the RFP.
Pre-assembly of the Embedded Beam and the Circular Rail would be a desirable feature of the Supply.
Answer 6. No, the "Wall Bracket Fastener" shown in drawing 270e009 is a fixture used in the installation and alignment procedure, and is not a part of this Supply.
While we continue our own investigation, can you please give us the name and address of any T1 supplier in Europe for 150 x 150 mm bars?
May we also take into consideration alternative steels?
(This question was synthesized from several similar questions that were received. The availablity seems only slightly better in the USA.)
Answer 7. The "T1" material shall be found in Belgium by Messrs. Fabrique de Fer. in thickness up to 150mm (standard productions) and thickness from 150mm up to 200mm (periodic production, pay attention to delivery terms).
Alternative proposals for the steel of the circular rail are possible. The reference characteristics are:
Answer 8. UNI is the Italian national standards body (see Answer 1 above). We have not been able to locate an English copy of "Fe 510C" or determine what the proper equivalent is.
Answer 9. There is no proposal number only a proposal name which in this case is Embedded Beam and Circular Rail.