TENDER FOR M. S. STRUCTURAL WORKS AT MOTHER DAIRY CALCUTTA, DANKUNI PREMISES-1. 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 are welding conforming to IS : 816 – 1969 & IS : 1995 using electrodes of approved make and brand conforming to IS : 814 – 2004, 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 charges such as electricity charges, labour insurance charges etc. Payment to be made on the basis of calculated weight of structural members only in finished work as per IS specified weight. Payment for gusset, bracket, cleat, rivets, bolts and nuts may be make by adding the actual weight of such items with the weight of finished structural members or 7% of weight for finished structural members weighing not less than 22.5 kg./m. or 15% of weight for finished structural members weighing less than 22.5 kg/m. may be increased allow for bracket, cleat, rivet, bolts and nuts etc. and no separate payment being made for these items, as per direction of Engineer-incharge. The rates are considered for a height of erection 8 m. 2nd floor level from the ground. Add 1.5% extra over the rate for each additional floor or 4m. beyond initial 8 m. or part thereof. I) For structural members of specified sections weighing less than 22.5 kg / m. II) For Structural Works in Roof Trusses etc. using joists, channels and angles of specified section weighing less than 22.5 kg / m. III) For built up sections structural members of specified sections weighing not less than 22.5 kg / m. 2. M.S. structural works in roof trusses with tubular sections conforming to IS : 806-1968 & IS : 1161 – 1998 connected to one another with bracket, gusset cleats as per design, direction of Engineer-in-charge complete including cutting to requisite size, fabrication with necessary metal are welding conforming to IS : 816 – 1969 & IS : 9595 using electrodes of approved make and brand conforming to IS : 814 – 2004, 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 plans ad labour required for the work including all incidental charges such as electricity charges, labour insurance charges etc. Payment to be made on the basis of calculated weight of structural tubular members as specified in relevant IS code in finished work. Payment for gusset, bracket, cleat may be made by adding the actual weight of such items with weight of finished structural members. The rates are considered for a height of erection 8 m. 2nd floor level from the ground. Add 1.5% extra over the rate for each additional floor or 4 m. beyond the initial 8 m. or part thereof. i) For trusses spanning up to 12.00 m. ii) For trusses spanning above 12.00 m and up to 20.00 m. iii) For trusses spanning above 20.00 m and up to 30.00 m. 3. M.S. structural works with hollow sections (square or rectangular shape) conforming to IS : 806-1968 & IS : 1161-1998) connected to one another with bracket, gusset, cleat as per design, drawing direction of Engineer-in-charge complete including cutting to requisite shape & size, fabrication including metal are welding conforming to IS : 816-1969 & IS : 9595 using electrodes of approved make and brand conforming to IS : 814-2004, haulage, hoisting and erection complete. The rate includes the cost of all M. Hollow section, all consumables such electrodes, gas and hire charges of tools and plants and labour required for execution and all incidental charges (such as electricity, labour insurance) etc. complete. Payment to be made on the basis calculated weight of structural members of MS Hollow Section as specified relevant IS code in finished work. Payment for gusset, bracket, cleat may made by made by adding the actual weight of such items with weight finished structural members. The rates are considered for a height of erection m. 2nd floor level from the ground. Add 1.5% extra over the rate for each additional floor or 4 m. beyond the initial 8 m. or part thereof. i) For roof truss works. a) Span up to 12 Mtr. b) Span beyond 12 Mtr and up to 20.00 Mtr. c) Span beyond 20 Mtr and up to 30.00 Mtr. ii) For other Structural works like galleries etc. No. 4. Drilling holes of requisite diameter in R.S. joists channels, tees, Plates etc. (a) (I) Dia. (Upto 12 mm and depth upto 10 mm. (ii) Extra for drilling beyond depth of 10 mm. (b) (I) Dia above 12 mm and depth upto 10 mm (ii) Extra for drilling beyond depth of 10 mm. 5. M.S. or W.I. Ornamental grill of approved design joints continuously welded with M.S. W.I. Flats and bars of windows, railing etc. fitted and fixed with necessary screws and lugs in ground floor. (Add. extra @ 1% for each addl. Floor upto 4th floor and @ 1.25% for each addl. Floor above 4th floor) (i) Grill weighing above 10 kg. / sq. mtr and up to 16 kg. / sq. mtr. (ii) Grill weighing above 16 kg. /sq.mtr and above. (MODE OF MEASUREMENT) :- The weight of grill per sq.m. will be determined by taking the physical weight of fabricated grill and dividing the same by covered area of the same. N.B. No shop priming will be allowed to facilitate inspection of workmanship. Weight of grill is to be taken after final grinding and finishing the weld. 6. Supplying, fitting, fixing in position rails on any surface. 7. Supplying 1.5 mm thick M.S. sheet fitted and fixed on one or both faces M.S. W.I. gate etc. with point welding at not more than 150 mm apart complete in all respect as per design including cost of all labour and materials. 8. Collapsible gate with 40 mm x 6 mm Tee as top and bottom guide rail, 20 mm x 10 mm x 2 mm vertical channels 100 mm apart in fully stretched position 20 mm x 5 mm M.S. flats as collapsible bracings properly riveted and washered including 38 mm steel rollers including locking arrangements, fitted and fixed in position with lugs set in cement concrete and including cutting necessary holes, chasing etc. walls, floors etc. and making good damages complete. (Add extra @ 1% for each addl. Floor up to 4th floor and @ 1.25% for each addl. Floor above 4th floor) In ground floor. (Payment will be made on the area of the gate covered by two guard rails and two extreme channels) 9. Supplying, fitting and fixing steel rolling shutter profile type with 18 B.G. approved type steel latche section 75 mm wide, fitted with coil wire spring necessiate the fitting of required Nos. of C.I. Pulleys on heavy type solid drawn seamless steel tube complete with locking arrangements both inside and outside specially built-up side guide channels including providing hood for the steel rolling shutter in the room, painting two coats of approved aluminium paint over a coat of red lead primer complete. 1. (Measurement will be made on the area of opening covered by the rolling shutter corrected upto 2 decimal.) 2. Payment of painting to be separately. 10. Supplying fitting and fixing steel rolling grills link type, shutter with 18 B.G. of approved type steel to the section 75 mm wide, fitted with coil wire spring to necessiate the fitting of required Nos. of C.I. Pulleys on heavy type solid drawn seamless steel tube complete with locking arrangements both inside and outside specially builtup side guide channels including providing a hood for the steel rolling shutter in the room, painting two coats of approved aluminium paint over a coat of red lead primer complete. (Measurement will be made on the area of opening covered by the rolling shutter corrected upto 2 decimal.). 11. Supplying, fitting and fixing windows and ventilators with or without integrated grills conforming to IS 1038-1975 and manufactured from rolled steel sections conforming to IS 7452-1974 with nonfriction projecting type, box type hinges, glazing clips, lugs locking bracket, handle plate etc. including hoisting in position, straightening if required, fixing lugs in cement concrete (1:2:4) with stone chips 20 mm down cutting holes and mending good damages to match with existing surface complete in all respect excluding glazing. (Add extra @ 1.2% for each additional floors upto 4th floor and @ 1.5% for each addl. Floor above 4th Floor) In Ground Floor Flash butt welded windows and ventilators. (No shop printing will be allowed to facilitate inspection of workmanship) Without integrated grills. (a) Fixed type steel windows as per IS sizes with horizontal glazing bars. (b) Openable steel windows as per sizes with side hung shutters and horizontal glazing bars. [The extra rate admissible for the openable portion only]. (i) Fixed type ventilators as per I.S. sizes with horizontal glazing bars height being limited to 580 mm. (ii) Top hung side hung ventilators as per I.S. sizes 580 mm. (iii) Centre hung ventilators as per I.S. sizes 580 mm. (iv) Two point nose steel handle including fitting and fixing (v) Two point nose aluminium handle including fitting and fixing. (vi) Steel peg stay 300 mm long including fitting and fixing. (vii) Aluminium peg stay 300 mm long including fitting and fixing (viii) M.S. integrated grill as per approved design integrated with steel window or ventilator, joints continuously welded with M.S. Flats and bars. Mode of Measurement (The weight of grill will be determined (theoretically) from section of the grills actually used excluding the rolled steel section of the window vent. The weight of the grill should be calculated at 7.85 gm. Cu. cm.) Note :- For windows and ventilators joints welded by arc welding, the above rates at (a) and (b) shall be reduced by 10%. 12. Labour for lowering and stacking after dismantling in parts R.S. joists, channels, angles, tees, plates etc. complete as directed. (a) From 1st floor level. (b) Add extra for each addl. Floor. 13. Welding in M.S. structural work with gas or electric : (a) Tack weld (b) Continuous weld. 14. Renewing bottom rail or top runners of collapsible gate including mending good all damages. 15. Repairing collapsible gate by cutting out all rivets as necessary re-assembling all members including welding pieces of channels, straightening bent bars and rivetting with new rivets and fitting in position and painting two coats. 16. Easing and oiling, cleaning collapsible gate and repairing to locking arrangements. 17. Easing and oiling, cleaning rolling shutters excluding repair to inside locks. 18. Easing and oiling W.I. Gate or G.I. Gate. 19. Labour for taking out rolling shutter (only shutter portion) dismantling by parts for repair or (replacement of damaged parts only), recharging and refitting the same in position after necessary repairs (excluding the cost of supply of new parts). 20. Renewing seam pipe for rolling shutter as per existing size and shape fitting, fixing complete. 21. Renewing side split pin for seam pipe for rolling shutter. 22. Oiling and greasing of rolling shutter and repair to in side lock. 23. Renewing profile of rolling shutter including fitting fixing complete as per existing size and shape. 24. Renewing spring of rolling shutter as per existing size and shape including fitting fixing complete. 25. Taking out M.S. or W.I. Grills from wooden frame including cutting lugs from masonry wall and refitting the same and mending good damages after repairs. (Excluding the cost of necessary repair of damages) or doing any other necessary works. 26. Dismantling all types of masonry excepting cement concrete plain or reinforced, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. a) In ground floor including roof. 27. Dismantling R.C. floor, roof, beams etc. including cutting rods and removing rubbish as directed within a lead of 75 m. including stacking of steel bars. (a) In ground floor including roof. 28. Brick work with 1st class bricks in cement mortar (1:4). (a) In superstructure, ground floor. 29. Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant IS codes. a) Pukur Variety 30. Plaster (in wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throting, nosing and drip course, scaffolding staging where necessary (Ground floor). [Excluding cost chipping over concrete surface]. (i) With 1:4 cement mortar (a) 20 mm thick plaster. 31. Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary : a) On steel or other metal surface : With super gloss (hi-gloss) - i) Two coats (with any shade except white) 80.00 32. Supplying best Indian sheet glass panes set in putty and fitted and fixed with nails and putty complete.(In all floors for internal wall & upto 6 m height for external wall) (i) 3 mm thick (weighing 7.4 kg. / Sq.m) 30.00 33. Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc. 20.00 No. 34. 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 trapezoidal profile of approved make as per IS : 15965:2012 and IS : 14246 : 2013 (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. 1. Supplying, cutting into sizes, fitting and welding complete of 6 mm thick M.S. chequered plate at any places and at any height of MDC premises as per direction of the Engineer-incharge. 2. Supplying one welder with one helper, welding machine, welding electrodes and all other accessories for any type of welding works at MDC premises (full day job eight hours). 3. Supplying, cutting in to proper shape & sizes, fitting & fixing by welding of M.S.welded mesh (mesh size – 3” X 1”) of 12 SWG with the frame of MS flat bar, angle etc. complete as directed.
