Rates include GST and contractor’s profit & overheads (15%), effective 01-08-2024.
Description
Designing, providing, installing and fixing factory finished custom designed cold form Light Gauge SteelFramed super structure comprising of steel wall panel, trusses, purlins etc manufactured out ofminimum 0.75 mm thick steel sheet as per design requirements. The steel sheet shall be galvanized (AZ-150gms Aluminium Zinc Alloy coated steel having minimum yield strength 300-550 Mpa) conforming toAISI specifications and IBC 2009 for cold formed steel framing and construction and also as per IS: 875-1987, ISO 800-1984 and IS:801 - 1975. The wind load shall be as per provisions of IS 875 (part -III). LGSFSframe shall be designed as per IS: 801 using commercially available software such as Frame CAD Pro-11.7/ STAAD PRO-V8i/ArchitekV2.5.16/ Revit architecture-2011 or equivalent. Proper usage ofConnection Accessories like Heavy Duty Tension Ties, Light Duty Hold-ons, Twist Straps (to connecttruss with wall frames), Strong Tie, Tie Rod, H-Brackets, Boxing Sections, L-Shaped Angles for betterstructural stability. The framing section shall be cold form C-type having minimum web depth 89 mm x39mm flange x 11mm lip in required length as per structural design requirement duly punched withdimple/slot at required locations as per approved drawings. The slots will be along centre line of websand shall be spaced minimum 250mm away from both ends of the member. The frame can be suppliedin panelized or knock down condition in specific dimensions and fastened with screws extendingthrough the steel beyond by minimum of three exposed threads. All self drilling tapping screws forjoining the members shall have a Type II coating in accordance with ASTM B633(13) or equivalentcorrosion protection of gauge 10 & 12, TPI 16 & 8 of length 20mm. The frames shall be fixed to RCC slabor Tie beam over Neoprene rubber using self expanding carbon steel anchor bolt of dia as per approveddrawings. design subject to minimum 12mm diameter and 121mm length conforming to AISI 304 and 317at 500mm c/c with minimum embedment of 100mm in RCC (RCC to be paid separately) and located notmore than 300mm from corners or termination of bottom tracks complete in all respects. The item alsoincludes the submission of stability reports duly examined and issued by any NIT/IIT. The rate includesthe concept design, detailed design, fabrication of sections, transportation, installation and all requiredfixing arrangement at site as described above.