FABRICATION, METALIZING, PAINTING AND TRANSPORTATION OF 6X76.2M SPAN FOR BRIDGE OVER RIVER GANGA AT ALLAHABAD BETWEEN JHUSI AND DARAGANJ STATION OF NER IN THE STATE OF UTTAR PRADESH, INDIA

Amount

FABRICATION, METALIZING, PAINTING & TRANSPORTATION OF 6X76.2M SPAN FOR BRIDGE OVER RIVER GANGA AT ALLAHABAD

Fabrication of 76.2m girder components in black condition as per the enclosed specification of the fabricated girder, the latest edition of B1 2001, IRS Code & IS Specifications. Trial Assembly & dismantling, stacking etc. complete with Steel of E-250 Gr. B0, E-410 B0, Cu, Pipes as per IS:1161 (supply by BBJ free of cost against BG as per an order at successful bidder’s workshop), HSFG Bolts, if any (supply by BBJ free of cost at successful bidder’s workshop), all materials, machinery, tools & tackles, consumables, energy/power, all leads and lifts, labour etc. complete in all respect as per approved drawings & specifications, relevant clauses of the NIT, order and RDSO Guidelines. The fabrication cost shall include all the types of stiffeners, packing’s, diaphragm, T&F bolts, steel drifts, all types of shop welds as per drawings and specifications, testing of welds including ultrasonic test & radiography test of butt welds, DP Test, micro etching etc., shop rivets/bolts, templates, jigs, fixtures, back up supports, accessories. The job includes trial assembly of one span girder at the shop as per approved drawings (to be provided by BBJ and/or RVNL and/ or RDSO) and transportation of girders in roadworthy packaging to BBJ site (Jhusi/ Daraganj, near Prayagraj/Allahabad, UP after painting as per item (c). The rate shall include all material testing, preparation of WPSS and getting it approved by RDSO or any other agency as decided by the BBJ and/or RVNL. No part of the work shall be painted or coated, packed or dispatched until it has been finally inspected and approved by the inspecting officer/ agency as per QAP. The rate shall also include the cost of approval by RDSO/any other agency as decided by the BBJ and/or RVNL. All other relevant guidelines shall be followed. The rate shall include all activities for delivering the end product. In brief, the fabrication includes but not limited to cutting, shaping, drilling holes, welding of components, welding consumables, all inspection and testing of raw materials (except Ultrasonic testing of raw steel which is to be paid separately), fabrication process and fabricated material; connections of all the types of ties, stiffeners, packing, diaphragm, steel drifts, shop welding including radiography, ultrasonic, DP testing, shop rivets, templates, jigs, fixtures, back up supports, accessories etc. and marking each member for site identification and transporting various components from contractor's fabrication Yard/workshop to bridge site near Prayagraj/ Allahabad (Jhusi/ Daraganj), UP in packages, bundles and other means with due care and safeguards, as described in the NIT/ tender document/ order/ contract conditions and as described in the contract conditions and specifications, and as directed/approved by engineer of BBJ and/ or RVNL and/ or RDSO and their authorised agencies/ representatives including loading, unloading, sorting member -wise systematic matching etc. complete with agency’s / fabricator’s/ sub-contractor's own labour, material, tools & plants including all lead, lift and taxes complete in all respect based on approved detailed drawings issued by BBJ from time to time. All work related to fabrication of girder components are to be done as per approved drawing, specification and as per direction of BBJ and/or RVNL and/ or RDSO and/or their authorised representative. All the girder components should be clearly marked with the erection number and name of the component before despatch.

Carrying out Ultrasonic testing of all structural steel plates (12mm thick and above) in the subcontractor's fabrication workshop with sub-contractor's testing equipment, manpower and all other arrangements complete item as per relevant codes and direction/approval of the Engineer of BBJ and/ or RVNL and/or RDSO and/ or their authorised agency/ representatives

The girder component should be Aluminium metalized after grit/ copper slag blasting (as per clause no. 39.2.1 of RDSO-B1 and as per the RDSO stipulation vide letter no. CBS/MPP/Meeting Dt. 10.04.2014) preceded by surface preparation by sandblasting/ grit blasting (as per Clause no. 39.2.1 Annexdix VII of RDSO-B1). The metalizing shall be followed by one coat of Etch primer to IS:5666 and one coat of zinc chrome to IS:104. This shall be followed by one coat of Aluminium paint to IS:2339 and shall be applied before the fabricated steelwork leaves the shop. The above painting/ Metallizing scheme is a brief outline - but these will be guided by all the provisions as detailed in clause no. 39.2 and 39.2.1 of RDSO-B1 along with relevant Appendix and other codes mentioned therein including RVNL stipulation. The thickness of the coating of metalized and painted surface should be as per relevant code or as directed by RVNL/ RDSO. The average thickness of metalizing will be 150 microns, Etch Primer 10 microns, Zinc Chrome 30 microns and Aluminium 20 microns. Total metalizing & painting thickness should not be less than 210 microns.

Note To Bill Of Quantity (BOQ)

All Plants & Machineries, handling equipment, welding consumables, aluminium wire, paint, copper slag/ grit, cutting gases and other inputs etc. required for the work would be arranged by the successful bidder. Welding consumables & paint should be purchased only from the approved vendor list of RVNL.

Fabrication to be done as per approved fabrication drawing and subsequent minor changes in fabrication drawing if any should be incorporated in the fabricated girder, without any extra cost.

Bidder should visit the site at Allahabad before quoting the rate for the assessment of accessibility to bridge points for delivery of finished girder components.

Item 1c will be operated only after the final approval of RVNL.

Payment of fabricated girder components and reconciliation of steel will be made based on the approved weight of exact shape and size of components.

If a tender does not contain a rate for all the above items then that tender shall be summarily rejected.

Free issue steel shall be supplied by BBJ to successful bidder’s workshop. The fabricated bridge component will be delivered to the Allahabad site with his own transportation by the successful bidder. However, the unloading shall be done by BBJ at the site.

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