WBKP/CP/NIT- 128/ Necessary construction of roof shed with new iron structure along with colour coated steel sheet and side covering around the shed by iron frame work with G.I. sheet etc. work for Mess with Kitchen on the roof top of Madhabpur PS

3rd Call of Necessary construction of roof shed with new iron structure along with colour coated steel sheet and side covering around the shed by iron frame work with G.I. sheet etc. work for Mess with Kitchen on the roof top of Madhabpur Police Station, Kolkata Police under Bhangar Division, during the year 2026-2027

Supplying , fitting & fixing Zn-Al alloy (55% Al & 45% Zn) coating of 150 grams per sq. metre (followed by colour coated on both side) steel sheet work having minimum yield strength of 550 Mpa of trapizoidal profile of approved make (excluding the supporting frame work) fitted and fixed with 55 mm & 25 mm self tapping screw, EPDM Washer 16 mm dia & 3 mm th. washer etc. complete with 150 mm end lap and one corrugation minimum side lap.(Payment to be made on area of finished work).(i) In Roof:-a) With 0.5 mm thick sheet

M.S. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to IS: 226, IS: 808 & SP (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of Engineer-in- charge complete including cutting to requisite shape and length, fabrication with necessary bolting, metal arc welding conforming to IS: 816- 1956 & IS: 1995 using electrodes of approved make and brand conforming to IS:814- 1957, haulage, hoisting and erection all complete. The rate includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges, labour insurance charges etc.........................(II) For Structural Works in Roof Trusses etc. using joists, channels and angles of specified section weighing not less than 22.5 kg/ m

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (6mm nominal size) excluding shuttering and reinforcement,if any, in gound floor as per relevant IS codes.Pakur variety

Galvanised corrugated iron sheet work (excluding the supporting frame work) fitted and fixed with 10 mm. dia J or L hook-bolts, limpet and bitumen washers and putty complete with 150 mm. end lap and one corrugation minimum side lap. (Payment to be made on area of finished work)(GCI sheet to be supplied by contractor).(ii) In wall:-(c) With 0.80 mm thick sheet

Cutting to requisite length or shape departmental R.S. joists, channels, angles, tees, plates etc.

Drilling holes of requisite diameter in R.S. joists channels, tees. Plates etc.(a) (I) Dia. Upto 12mm and depth upto 10 mm.

Labour for hoisting and placing in proper position { up to 1st floor level} departmental R.S. joists, channels, angles. Tees, plates etc. including fitting and fixing same with bolts and nuts, if necessary {but excluding cost of such bolts and nuts}

Holding down bolt with nut including 100 x 100 x 6 mm plate washer at bottom fitted complete and packing the hole with cement concrete or cement grout as directed.(i) 16 mm dia bolt.(a) 300 mm long

Supplying, fitting, fixing bolts with nuts, washer:(i) 10 to 16 mm dia:(a) Length up to 75 mm