Painting of steel girder bridges of various sections over UMB division under jurisdiction of SSE/BR/M/UMB.

A-Chapter -4: Bridge Works - Super Structure (Steel)

Item Breakup - A-Chapter -4: Bridge Works - Super Structure (Steel)

Existing girders with old paints BRIDGE-SHOP-JRC-ENGINEERING/NORTHERN RLY Surface preparation of steel work of bridge triangulated girders by cleaning with scrappers and/or wire brushes to remove all rust and loose or perished paint to prepare perfectly clean & dry bare metal surface free from all dirt/foreign material & ready for initial coat of paint. Rate includes cost of labour, consumables, brushes, misc. tools and plants, ladders, scaffoldings, jhoola, hanging scaffolding, staging etc.

Existing girders with old paints

Surface preparation for painting of Sqm bridge plate/composite girders and other steel 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 other foreign matters without disturbing the 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 one coat ready mix Zinc Chromate Sqm conforming to IS:104 with DFT of 25-30 Microns followed by one coat of Zinc Chromate red oxide conforming to IS:2074 DFT of 25 Microns

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

With one coat ready mix Zinc Chromate Sqm conforming to IS:104 with DFT of 25-30 Microns followed by one coat of Zinc Chrome red oxide conforming to IS:2074 with DFT of 25 Microns.

With two coats Aluminium paint in dual Sqm containers conforming to IS:2339 with DFT of 15 - 20 Microns for each coat. Surface preparation of steel work of bridge plate/composite girders by cleaning with scrappers and/or wire brushes to remove all rust and loose or perished paint to prepare perfectly clean & dry bare metal surface free from all dirt/foreign material & ready for initial coat of paint for new or existing steel girders. Rate includes cost of labour, consumables, brushes, tools & plants, ladders, scaffoldings, jhoola, hanging scaffolding staging etc. 8 041221(041280) Extra for working under traffic conditions Sqm 23020.00 5.75 132365.00 over items 041220 to 041274 [RATE = 10%] BRIDGE-SHOP-JRC-ENGINEERING/NORTHERN RLY Surface preparation of steel work of bridge triangulated girders by cleaning with scrappers and/or wire brushes to remove all rust and loose or perished paint to prepare perfectly clean & dry bare metal surface free from all dirt/foreign material & ready for initial coat of paint. Rate includes cost of labour, consumables, brushes, misc. tools and plants, ladders, scaffoldings, jhoola, hanging scaffolding, staging etc. 9 041231(041280) Extra for working under traffic conditions Sqm 25400.00 8.62 218948.00 over items 041220 to 041274 [RATE = 10%] 10 041240(041280) Extra for working under traffic conditions Sqm 4000.00 3.35 13400.00 over items 041220 to 041274 [RATE = 10%] Painting of cleaned plate/composite bridge girders including all scaffolding along with provision of Jhoola / hanging scaffolding ladders etc. where required. 11 041261(041280) Extra for working under traffic conditions Sqm 23020.00 10.14 233422.80 over items 041220 to 041274 [RATE = 10%] 12 041263(041280) Extra for working under traffic conditions Sqm 27020.00 10.45 282359.00 over items 041220 to 041274 [RATE = 10%] Painting cleaned triangulated bridge girders including all scaffolding, along with provision of Jhoola / hanging scaffolding ladder where required. 13 041271(041280) Extra for working under traffic conditions Sqm 25400.00 12.21 310134.00 over items 041220 to 041274 [RATE = 10%] 14 041273(041280) Extra for working under traffic conditions Sqm 25400.00 12.53 318262.00 over items 041220 to 041274 [RATE = 10%] Total 16594941.20