SUPPLY, FABRICATION, SAND BLASTING, METALISING, PAINTING, TRIAL ASSEMBLING, DISMANTLING, STACKING, TRANSPORTATION TO SITE AT MIZORAM ETC. OF STEEL TRUSS GIRDERS FOR BRIDGE NO. 64 AND BRIDGE NO. 104 AT MIZORAM

Amount

Supply, Fabrication of girder components, Trial Assembly, duly applying protective coating (sand/grit blasting, aluminium metalising & painting) on all parts of structural steel of bridge structure; complete with steel of grade E 410B0/ E 410B0 Cu/ E 250B0/ E 250B0 Cu of IS 2062-2011 and transportation of finished and painted girder components to site, all materials, machineries, 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, packings, diaphragm, T&F bolts, steel drifts, shop welds, shop rivets/ bolts, templates, jigs, fixtures, back up supports, accessories, blasting, metalising, painting etc. The job includes supply of steel as per grade mentioned above, fabrication of steel girders, trial assembly of girders at shop as per drawings, transportation of the girder components to Br sites as mentioned in tender. The elements should be Aluminium metalized (as per clause no. 39.2.1 of RDSO-B1 and as per the RDSO stipulation vide letter No. CBS/MPP/Meeting; dt.10.4.14) preceded by surface preparation by compressed air blasting/centrifugal blasting with suitable abrasive material (as per clause no. 39.2.1 Appendix VII of RDSO; B1). The metalizing shall be followed by, one coat of Etch primer to IS:5666 and one coat of zinc primer 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/ Oiling / Metalizing 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-B-1 along with relevant appendices and other codes mentioned therein. 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/N F Railway. 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/ N F Railway. All other relevant guidelines of (RDSO-B-1) shall be followed. Rate shall include all activities for delivering the end product except bearings. d) Measurement of Girder components will be done as per actual shape & size of the material and no additional weight for wielding etc. will be considered for payment.

04 (four) Nos. Of 61 m span (As per RDSO drawing no. RDSO/B-17182)