Tender For Repair Work Of Escape Gates At Ch 2534 Tawa Lbmc.; 1 Design, Drawing, fabrication, supply, erection and commissioning of Trestle assy/ Railing decking/Trash racldstructural steel hoist bridge/ structural steel hoist supporting structure for monorail /Catwalk bridge for connecting spillway piers for all type of sluice with embedded parts consisting of columns, beams, bracings, stiffenerc, ties, chequered plate covedng, hand railing, ladder etc., with all other accessories for operating gates, other structure including cost of all materials, machinery, labour, tools and tackles, cutting, aligning, anchoring, welding, finishing, cleaning, applying two coats of zinc chromate red oxide primer and three coats of approved synthetio enamel paint etc., complete as per specifications and approved drawings , including packing & forwarding, fuansportation charges for shuctwal steel components and other materials. For CR gate1. Railing post (45mmx45mmx5mm,3.40 kg/mtr) 1.2mtr each x12 pole =14.4mtr x3.4 kg/mtr =48.96 kg2. Railing(40mmx40mmx4mm ,2.4 mtr) 18 mtr x 2 line =36 mtr x2.4 kg/mtr =86.4 kg 3. chequered plate (5mm thickness ,39.25 kg/m2)0.6m x8 mtr =4.8 sqm x39.25 kg/sqm =188.4 kg ,4. Chequered platesupport (ISMB 200x100 ,25.4 kg/mtr ) 7 mtr x25.4=177.8 kg Total = 501.56 kg, say 0.501 tonnes 2 Supplying and fixing bulb type (musical note) uncladded rubber seals and stainless steel counter sunk bolts/ nuts/ washers of approved quality including cost of all materials, labour, removing existing worn-out/damaged bulb type rubber seals from gates, cleaning surface, making holes in new seals, fixing new seals / bolts/ nuts/ washers tightly in position, labour, scaffolding etc. complete. 3 mtrx2 side x2 gates=12 mtr 3 Supplying and fixing flat rubber seals and stainless steel counter sunk bolts/ nuts/ washers of approved quality including cost of all materials, labour, removing existing worn-out/ damaged flat type rubber seals from gates, cleaning surface, making holes in new seals, fixing new seals /bolts/ nuts/ washers tightly in position, scaffolding etc. complete 2.5 mtrx2 gates =5 mtr 4 Painting of Spillway gates, sluice gates, canal gates (both vertical or radial),stop log gates, exposed embedded parts and all un machined ferrous surface (hoist cylinders, cylinder heads, hydraulic piping, pipe fittings, bonnet covers), exposed to water as per IS 14177,for which surface preparation by blast cleaning of class B primer coat (one coat) of inorganic zinc silicate (preferably airless spray)or alternatively, two coats of zinc rich primer(containing not less than 85% zinc on dry film) to give dry film thickness of 70 ± 5 micron and finish coat (two coats) of solvent less coal tar epoxy paint using airless spray to provide dry film thickness of 150±5 micron per coats. Thus, total dry film thickness of all the coats, including primer coating, should notbe less than 350 microns, this will be include expenses on mobilisation and demobilisation of equipments. For maintenance painting the surface preparation shall be done by appropriate hand and power tool cleaning, prior to hand power tool cleaning. Any heavy layer of rust should be removed by chipping visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylot or white gasoline. After hand and power tool cleaning the surface should be cleaned of loose dust and debris and/or blast cleaned as laid down in para 7.0 of IS code 14177. After the surface preparation the primer and finishing coats shall be carried out as provided above for painting etc. complete. Upto 1.5 meter Height 5 Painting of Spillway gates, sluice gates, canal gates (both vertical or radial),stop log gates, exposed embedded parts and all un machined ferrous surface (hoist cylinders, cylinder heads, hydraulic piping, pipe fittings, bonnet covers), exposed to water as per IS 14177,for which surface preparation by blast cleaning of class B primer coat (one coat) of inorganic zinc silicate (preferably airless spray)or alternatively, two coats of zinc rich primer(containing not less than 85% zinc on dry film) to give dry film thickness of 70 ± 5 micron and finish coat (two coats) of solvent less coal tar epoxy paint using airless spray to provide dry film thickness of 150±5 micron per coats. Thus, total dry film thickness of all the coats, including primer coating, should notbe less than 350 microns, this will be include expenses on mobilisation and demobilisation of equipments. For maintenance painting the surface preparation shall be done by appropriate hand and power tool cleaning, prior to hand power tool cleaning. Any heavy layer of rust should be removed by chipping visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylot or white gasoline. After hand and power tool cleaning the surface should be cleaned of loose dust and debris and/or blast cleaned as laid down in para 7.0 of IS code 14177. After the surface preparation the primer and finishing coats shall be carried out as provided above for painting etc. complete. Beyond 1.5 meter Height 6 Painting of structural components of Hoist including supporting structures and surfaces of hydraulic hoist sun exposed to water as perIS:14177, for which surface preparation by blast cleaning of class B, primer coat (two coats)of Zinc phosphate primer to give dry film thickness of 40 ± 5microns per coat and finish coat(one coat) of alkyd based micaceous iron oxide paint give dry film thickness of 65 ± 5 microns followed by two coats of synthetic enamel paint, using airless spray, to give dry film thickness of 25 ± 5 microns per cost, at an interval of 24 hours. Thus total dry film thickness of all the coats, including primer coating, should not be less than175 microns. This will include expenses on mobilisation and demobilisation of equipment’s. For maintenance painting, the surface preparation shall be done by appropriate hand and power tool cleaning. Prior to hand and power tool cleaning, any heavy layer of rust should be removed by chipping. Visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylol or white gasoline. After hand and power tool cleaning, the surface should be cleaned of loose dust and debri sand / or blast cleaned as laid down in para 7.0 of IS Code14177. After the surface preparation, the primer and finishing coats shall be carried out as provided above for painting etc. complete. Upto 1.5 meter Height 7 Painting of structural components of Hoist including supporting structures and surfaces of hydraulic hoist sun exposed to water as perIS:14177, for which surface preparation by blast cleaning of class B, primer coat (two coats)of Zinc phosphate primer to give dry film thickness of 40 ± 5microns per coat and finish coat(one coat) of alkyd based micaceous iron oxide paint give dry film thickness of 65 ± 5 microns followed by two coats of synthetic enamel paint, using airless spray, to give dry film thickness of 25 ± 5 microns per cost, at an interval of 24 hours. Thus total dry film thickness of all the coats, including primer coating, should not be less than175 microns. This will include expenses on mobilisation and demobilisation of equipment’s. For maintenance painting, the surface preparation shall be done by appropriate hand and power tool cleaning. Prior to hand and power tool cleaning, any heavy layer of rust should be removed by chipping. Visible oil, grease, dirt and other foreign material be cleaned using solvents like clean mineral spirits, xylol or white gasoline. After hand and power tool cleaning, the surface should be cleaned of loose dust and debri sand / or blast cleaned as laid down in para 7.0 of IS Code14177. After the surface preparation, the primer and finishing coats shall be carried out as provided above for painting etc. complete. Beyond 1.5 meter Height
