Construction of 4 nos. Self Supported Steel roof Structures for Cargo building at Chandigarh International Airport ltd, Mohali. S.H Civil Works

Amount

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge.

Filling available excavated earth (excluding rocks) in trenches, plinth, sides of foundations etc. in layer not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead upto 50 m and lift upto 1.5m

Supplying and filling in plinth with sand under floors, including watering,ramming, consolidating and dressing complete

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level (a) 1:4:8 ( 1 Cement : 4 Coarse sand : 8 Graded Stone Aggregate 40 mm. Nominal Size)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : (A) "1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size).

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge.“(Note :- Cement content considered in this item is @ 330 kg/cum.“Excess/ less cement used as per design mix is payable/recoverable separately). (a) All works upto plinth level

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge. (Note :- Cement content considered in this item is @ 330 kg/cum.“Excess/ less cement used as per design mix is payable/recoverable separately). (b) All works above plinth level upto floor V level

Extra for providing richer mixes at all floor levels. Providing M-30 grade concrete instead of M-25 grade BMC/ RMC. (Note:- Cement content considered in M-30 is @ 340 kg/cum) Note:- Excess/less cement over the specified cement content used is payable /recoverable separately.

Add for using extra cement in the items of design mix over and above the specified cement content therein.

Centering And Shuttering Including Strutting propping etc. And removal of form for all heights (a) Foundations ,footing, bases, of column,etc. For mass concrete

Centering And Shuttering Including Strutting propping etc. And removal of form for all heights (a) Columns, Pillars, Piers, Abutments, Posts and Struts

Centering And Shuttering Including Strutting propping etc. And removal of form for all heights (a) Lintels, beams, plinth beam, girders, bressumers and cantilevers.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth and above plinth level Thermo-Mechanically Treated bars of grade Fe-500D or more.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level. Thermo-Mechanically Treated bars of grade Fe-500 D or more.

Providing and fixing up to floor five level precast cement concrete hollow block, including hoisting and setting in position with cement mortar 1:3 (1 cement : 3 coarse sand), cost of required centering, shuttering complete. (a) 1:1½:3 (1 Cement: 1½ coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size).

6 mm cement plaster of mix : (a) 1:3 (1 cement : 3 fine sand)

Structural steel work riveted, bolted or welded in built up sections,trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and laying 60mm thick faciory made cement concrete interlocking paver block of M -30 grade made by block making machine with strong vibratory compaction, of approved s;ze, design & shape, laid in required colour and pattern over and including 50mm thick compacted bed of coarse sand, filling the joints with line sand etc. all complete as per the direction of Engineer-in-charge

Providing and fixing carbon steel galvanised ( minimum coating 5 micron) dash fastener of 10 mm dia double threaded 6.8 grade (yield strength 480 N/mm2), counter sunk head, comprising of 10 m dia polyamide PA 6 grade sleeve, including drilling of hole in frame , concrete/ masonry, etc. as per direction of Engineer-in-charge. 10 x 160 mm

Supplying and fixing rolling shutters of approved make, made of required size M.S. laths, interlocked together through their entire length and jointed together at the end by end locks, mounted on specially designed pipe shaft with brackets, side guides and arrangements for inside and outside locking with push and pull operation complete, including the cost of providing and fixing necessary 27.5 cm long wire springs manufactured from high tensile steel wire of adequate strength conforming to IS: 4454 - part 1 and M.S. top cover of required thickness for rolling shutters. a)80x1.20 mm M.S. laths with 1.20 mm thick top cover

Providing and fixing ball bearing for rolling shutters.

Extra for providing mechanical device chain and crank operation for operating rolling shutters. (A) Exceeding 16.80 sqm in area

Extra for providing grilled rolling shutters manufactured out of 8 mm dia M.S. bar instead of laths as per design approved by Engineer-in- charge, (area of grill to be measured).

Providing and fixing panelling or panelling and glazing in panelled or panelled and glazed shutters for doors, windows and clerestory windows (Area of opening for panel inserts excluding portion inside grooves or rebates to be measured). Panelling for panelled or panelled and glazed shutters 25 mm to 40 mm thick : Particle Board 12 mm thick Pre-laminated particle board with decorative lamination on both sides, Grade I, Type II, IS:12823 marked

Providing and fixing pressed steel door frames conforming to IS: 4351,manufactured from commercial mild steel sheet of 1.60 mm thickness, including hinges, jamb, lock jamb, bead and if required angle threshold of mild steel angle of section 50x25 mm, or base ties of 1.60 mm, pressed mild steel welded or rigidly fixed together by mechanical means, including M.S. pressed butt hinges 2.5 mm thick with mortar guards, lock strike-plate and shock absorbers as specified and applying a coat of approved steel primer after pre-treatment of the surface as directed by Engineer-in-charge: (a) Profile B Fixing with adjustable lugs with split end tail to each jamb

Providing and fixing ISI marked flush door shutters conforming to IS : 2202 (Part I) non-decorative type, core of block board construction with frame of 1st class hard wood and well matched commercial 3 ply veneering with vertical grains or cross bands and face veneers on both faces of shutters: (a) 35 mm thick including ISI marked Stainless Steel butt hinges with necessary screws

Providing and fixing aluminium sliding door bolts, ISI marked anodised (anodic coating not less than grade AC 10 as per IS : 1868), transparent or dyed to required colour or shade, with nuts and screws etc. complete : (a) 250x16 mm

Providing & fixing fly proof wire gauze to windows, clerestory windows & doors with M.S. Flat 15x3 mm and nuts & bolts complete. Stainless steel (grade 304) wire gauze of 0.5 mm dia wire and 1.4 mm aperture on both sides.

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge. Made of G.I. wire of dia 4 mm

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineerin- charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing concertina coil fencing with punched tape concertina coil 600 mm dia 10 metre openable length ( total length 90 m), having 50 nos rounds per 6 metre length, upto 3 m height of wall with existing angle iron 'Y' shaped placed 2.4 m or 3.00 m apart and with 9 horizontal R.B.T. reinforced barbed wire, stud tied with G.I. staples and G.I. clips to retain horizontal, including necessary bolts or G.I. barbed wire tied to angle iron, all complete as per direction of Engineer-in-charge, with reinforced barbed tape(R.B.T.) / Spring core (2.5mm thick) wire of high tensile strength of 165 kg/ sq.mm with tape (0.52 mm thick) and weight 43.478 gm/ metre (cost of M.S. angle, C.C. blocks shall be paid separately)

Providing and fixing Galvalume Pre-Coated steel sheet for Self Supported roofing system manufacture by using cold rolled steel sheet out of 1.20 to 1.30 mm thick based metal thickness(BMT), steel with min 350 MPa Yield strength and profile made from the coil width of range 900 mm to 920 mm converted into profile having effective Profile width of 610 mm to 625 mm and effective depth profile sheet ranges from 195 mm to 210 mm (from top of edge of inter- locking to bottom of sheet .Metallic hot dip coated with Zinc and Aluminum alloy (55% aluminium,45 % Zinc) AZ 150 (Min 150 gms/sqm total on both sides). The paint shall have a coating thickness on top side of sheet 25 micron (Minimum) and bottom 12 micron (minimum). Laying/fixing shall be done with interlocking / seaming the approved colour different sheets without making holes or preventing the overturning the roof by wind addition made up from superior quality including fixing end cnnections, hangers, clamps etc. as may be necessary at site. NOTE: -This item includes designing of self-supported roof system as per requirement for load like wind load, self-weight and earthquake loads; including vetting of design by IITs/NITs/Govt. Engineering Colleges. Supply, fabrication & erection of self-supported single span arch roof (of approx size 20 m span X 28 m length & height 7 m approx.) fabricated from mechanically seamed Hydraulic Machines to profiles of Imported Galvalume Cold Rolled Structural Steel coils as per required shape and curvature, Steel Sheet, Aluminum-Zinc Alloy Coated by Hot-Dip Process. The interlocking panels shall be pressed to close the seam forming water tight joints. The work shall be carried out as per manufacturer’s specifications and directions of Engineer in Charge. The rate of item is inclusive of the cost of all the materials, flashings at ends, machinery, labour involved in all the operations described above including charges of all lifts, leads, transportation scaffolding, centering shuttering and all the taxes, excise duty, Octroi etc as applicable. The cost of fixing self supported roofing system at both the ends with end connectors as designed is also included in this item. (For payment purpose, only plan area of sheet shall be measured in sqm upto two decimals. Nothing extra shall be paid on any account.)

Providing and applying sodium silicate based transparent surface hardener, dust proofer, ceiling & curing compoud coating for concrete (minimum 2 coats) of make SIKKA/FOSROC/BASF or equivalent on existing hardened cement concrete floor to provide improved chemical and abrasion resistance, reducing dusting and improving cleanability to concrete floor. Material shall confirm to ASTM C-156 for water retention & abrasion resistance as per IS 1237 - 1980 & IS 9162 - 1979 and the consumption of material should be minimum 0.30 Kg./sqm/coat. The item should be executed properly complete as per manufactures specification and as per direction and satisfaction of engineer in charge.