Design, Supply and Installation of Tensile Structure roofing for terrace portion at Dean Student Office Building in IIT Madras.

Amount

Design, Supply and Installation of Tensile structure roofing for roofing the existing terrace portion(3rd floor level) at Dean Students Office in IIT Madras , to be designed, fabricated and installed as per Indian Standard norms. The canopy shall be designed for as per the wind speed prevalent in that area as per I.S. 875-Part 3. The steel structure shall be designed as per I.S. 800. The steel fabrication and erection shall be as per I.S. norms. The membrane shall be designed and fabricated as per European norms for design and practices. The rate quoted for the structure should be on area covered by canopy and the rate inclusive of design, preparation of detailed structural drawings duly proof checked from the third party with prior approval from IITM, supply and installation of canopy as per the approved design etc complete. The rate inclusive of providing necessary anchour fastener for fixing the cantilever trusses to the existing building. Scope of the work includes Design, Engineering Patterning, Fabricating, supply and installation of tensioned membrane structure as per the approved drawing and specifications attached. The membrane should be of PVC Coated Polyester membrane Mehlar or Ferrari of 950 GSM. The membrane Cutting, Seaming and HF Welding as per Euro-standards. The clamping systems, if required, with sectionalized aluminium profiles and kedar-incorporated edges or cable catenary edges. The Steel work Design & Analysis done by STAAD used in conjunction with Forten32, shop drawings and other details by CAD software. The rate should include supply/fixing/anchoring of the base plates. The primary supporting steel structure will be made out of MS Structural steel tubular sections (Yield Strength over 240). The rates should also inclusive of applying anti-corrosion treatment followed by two coats of priming with anti rust epoxy primer followed by two coats of epoxy paint for steel structures. All cables(if any) will be dry hot dip galvanized. All necessary secondary steelwork like corner plates, lugs, and clamping plates shall be pre-engineered & fabricated by CNC / Laser cutting machines, and appropriately finished. The membrane Form finding And Patterning achieved by Computer based Finite element and membrane used for the structure. The anchour fasteners used shall be of Hilti Stainless Steel anchor faster of appropriate size, GI gutter for a size 250mm x 150mm or higher size with adequate outlet provisions at the termination end of the sloped roof etc., complete.. Payment for the structure will be made based on the plan area of the structure including projections. The rate inclusive of GST @ 18%.

Supplying, tightening and fixing 10mm dia Galvanized multiplex rope (similar to the rope provided at NAC courtyard) at 20.0m height for covering monkey proof net in OTS area as per the drawing and etc complete.

Providing, cutting, welding and fixing of 65mm dia GI pipes with necessary vertical supports, lead and lifts at terrace level including applying a priming coat of approved steel primer (zinc chromate yellow primer) and etc complete to tie the GI ropes.

Structural Steel work welded in built up sections / tubular sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer (Zinchromite primer) all etc .

Supplying and fixing of Galvanized single line cable for tightening the monkey proof net at required places and etc complete at all levels.

Two or more coats : Enamel painting for doors / windows / steel works / wall panels (two or more coats excluding primer) on both exterior and interior surface of wooden and steel joineries using approved colour, make and brand of synthetic enamel paint two or more coats. The contractor should ensure complete covering of floors using tarpaulin / plastic sheet while taking up the work. The work shall be executed as per the detailed specifications and special conditions. The rate quoted shall be inclusive of charges towards all labour, material, transport, scaffolding, safety arrangements, Personal Protective Equipments (PPE), tools and plants etc.

Providing and fixing HDPE GARWARE Net of 2.50mm thickness (similar to the rope provided at NAC courtyard) , 30mm gap and white / Blue colour for monkey proof net including transport and labour charges for fixing at terrace level and etc complete as per the direction of Engineer in charge.

M/S. NAVEEN CONSTRUCTIONS

PRESSMACH Infrastructure ( P ) Ltd