Project: Amochu Bridge on Samtse-Phuentsholing Highway
Subject: Request for Clarification of Bidding Documents
Dear Sirs,
RE: Invitation for Bid No DoR/FD/P-ling/2012 -13/W-7/546 Dated 7th December 2012. Contract No. AM02
Please be adviced Shanghai Pujiang Cable Co., Ltd has download the bidding documents for Supply & Installation of Hanger Cables & Accessories for Amochu Bridge on Samtse-Phuentsholing Highway.
After reviewing the bidding documents, we hereby request for clarification of following, all page numbers, part numbers, section numbers or paragraph numbers mentioned below are same as bidding documents.
1. Related services
On page 5, clause 1, scope of bid and on page 53, clause 1, 1.1[m], Related services have been mentioned, included and defined. As specified in page 53 clause 1,1.1[m], Related services means the services incidental to the supply of goods such as insurance, installation, training, and initial maintenance and other obligations of the supplier under the contract. Please clarify,
1.1 what does initial maintenance means and what does other obligations means?
Response: “Initial maintenance” is not applicable to this supply. As regards “other obligations” only the obligations specified in the contract shall apply.
1.2 a) From item description in BoQ as well as on page 49, installation of hanger cables, from this paragraph, obligations for supplier/bidder is just a kind of supervision work plus providing of special equipments and special tools, and local contractor, as a main body of installation work who will be responsible for a)collaboration with the supplier/bidder and
b)the organization of a team including engineers who will do the planning, commanding, measuring and survey of the structure while erection and stressing work is undergoing and providing safety measures etc and certified technicians, workers such as certified welders, and
c)providing labor, other common tools, common main equipments except those provided by supplier/bidder as like mentioned but not limited to in this paragraph, for example, some odd works or installations or welding materials etc at their cost.
Is our above understanding for this paragraph correct? If yes, please specify the description of Related Services on page 47, list of Related Services for the purpose of clarification. For reference, can we filling in those like below,
- Insurance
- Supervision for installation work including site pre-meeting, site training for precautions and daily supervision work during hanger erection and stressing;
- Others, if any, please add
Response: Your understanding of the clause is correct. Your responsibility is to supply the materials and supervise installation of the cables, and stressing and fine tuning works including providing the specialist equipment and tools for the job. The labor force, working platform for installation and stressing, lifting equipment etc. shall be arranged for by the Client and the local contractor.
1.3 The costs for above said 1.2 including but not limited to the costs mentioned in Sl. No.2 in BoQ shall be included all in this Sl.No.2, is our understanding right?
Response: This question is not very clear to me. But your scope of work is clearly specified in the BoQ and Technical specifications
1.4 Is there any design requirement for hanger cable stressing in design documents? Such as the load of stressing and how many times the cable will be stressed.
Response: No such requirements. We will follow the standard practice and may be the advice of the manufacturer
2. Fatigue test certificate
On page 69(SCC), regarding GCC 13.1, fatigue test certificate is mentioned. But in on page 50, TS(Technical specification), 5. Inspection and tests, there is no requirement for fatigue test. As you may know, there are two kinds of type test or acceptance test for CABLE, one is static test(tensile test), another is fatigue test. Test specimen of cable including its socket can not be reused for permanent cable. The static test takes short time while fatigue test takes long time. Fatigue test is normally to be conducted in 3rd party and if test window can appointed at some period, all the period for preparation of test specimen cable as well as the fatigue test itself and reporting will take months for 2 million cycles. And the cost will be very high. So, we kindly request for clarification if static or fatigue test is to be conducted just for this project. As stipulated in international codes, previous test reports (test sample shall be greater in size and capacity of load than the size of this project)can be provided to engineer/consultant. The previous tests may, at the engineers/consultants discretion, be used as the basis for cable approval on the new project. So, please clarify this requirement while take accounts of 2.5 month delivery period.
Response: We are aware of the fact that it will be just too expensive to conduct a fatigue test of the cables just for this bridge. Therefore we will accept the fatigue test results done previously for the cables manufactured by your Company.
But a static tensile test on the material sample would have to be conducted in presence of the Client’s inspection team at your factory.
Schedule of supply
On page 47, 2~2.5 month is specified for supply of goods. We want to know the actual defination for the delivery of 2 months or 2.5 months. Is it means 2 or 2.5 months after signing of contract? Is it shipment date/dispatch date or the date for goods to arrive at site? You may know, for international shipping, shipment date is normally specified since it is very difficult for shipper to control the vessel/carrier.
Response: 2.5months is the total supply contract duration and the duration will start from the date of signing of the contract. This means within 2.5 months the materials will have to reach the bridge site at Amochu.
3. Duration of stay of two engineers
Can you clarify how long the two engineers will stay in manufacturer’s factory? If as bidder, cable manufacturer need to buy forging materials as raw material from forging company, do the inspection engineers do the inspection of this raw material? If yes, in cable manufacturer’s premise or in the forging company?
Response: Three days should be adequate. If the inspection team is able to witness a static tensile test and also study your standard quality control and assurance procedure/system including how the raw materials are inspected/tested by your Company for quality complaince, inspection of the raw materials may not be necessary.
4. The deadline of provision of performance guarantee
In the event that one bidder is awarded the contract, can they start manufacturing of components such as sockets while the performance guarantee is under issuing from the bank?
Response: You should start manufacture of the components only after you receive the letter of award from the client.
5. Submittal of shop drawings
Before manufacturing, is there any requirement for submittal of shop drawings? And how long it will take for one review period? Only after approval, the bidder/manufacturer can commence buying raw material or machining or fabrication of cable?
Response: Workshop drawings will have to be submitted to the Client for consent and approval, which is as per standard norm. The review of the shop drawings shouldn’t take more than a week.
Your formal clarification is highly appreciated.
Weichong Liang
Shanghai Pujiang Cable Co., Ltd