TVC Division - DEN/South jurisdiction-Proposed strengthening of Steel Girder Bridges

A-List of items of works that are covered by the USSOR 2021 for Above/

Supply,fabrication and erection of steel members to replace existing corroded members of built up section made up of MS plate, angles,channels of different thickness and sizes including painting with one coat of ready mix paint Zinc Chromate priming to IS:104 followed by one coat of ready mix paint red-oxide Zinc Chrome priming paint to IS:2074.Structural steel should 1 conform to IS:2062 E250-Grade'B0'.Fabrication and erection to be as per existing design initially by bolts and nuts and finally by rivetting during the sanctioned traffic block.Rate includes cutting of new steel work,removal of rivets by drilling ,dismantling of any existing members required for inserting fabricated members,fixing of new fabricated built up members with all tools,plants,labour tools,plants,labour,consumables,machinery and accessories etc.Work will be executed as per IRS:B 1- 2001. Note: Painting shall be paid extra under relevant item.

Supplying and changing of corroded worn-out and loose rivets of any size at any location of the bridges with or without traffic blocks including all tools,plants,machinery complete in all respects-For Rivets of size up to 25mm dia.

Surface preparation for painting of bridge plate/composite girders and other steel 3 structures where the finishing coat shows signs of deterioration;but primer coat of paint is sufficiently in good condition and there are no signs of rusting etc. Surface shall be cleaned free from oil grease,scaling and otjher foreign matters without disturbing for primer coat(Rate includes cost of labour,consumables,tools & plants,scaffolding,jhoola,ladder etc.)

Painting of cleaned plate/composite bridge girders including all scaffolding along with provision of Jhoola/hanging scaffolding,ladders etc. where required-With two coats of Aluminium paint in dual containers conforming to IS:2339 with DFT of 15-20 Microns for each coat