CONSTRUCTION OF 3 NOS OF WATCH TOWER AND PROVIDING VIEW CUTTER ALONGSIDE COMPOUND WALL AT ISRF

Amount

Part A - Watch Tower

Earth work excavation for foundations in all types of hard /dense soil /boulders /rocks etc. by mechanical means - Hydraulic excavator/manual means for all depths measured from original/natural ground level with necessary shoring/struting/dewatering (if required) etc. and disposal of excess excavated earth for all lead and lift within ISRF site premises, all complete as directed by Engineer-in-charge.

Filling with available excavated earth from ISRF site premises (excluding rock) wherever directed by Engineer-in-charge, in layers not exceeding 20cm in depth, including lifting, loading, unloading, watering, consolidating, compacting each filled up layer by ramming/plate compactor as required to achieve proper compaction including all equipments, labour, other incidental expenses etc. all complete as directed by Engineer-in-charge.

Providing and laying in position at all levels plain cement concrete in 1:2:4 nominal mix ratio with 20mm down graded coarse aggregate in blinding layer including dewatering, ramming, leveling, curing, shuttering, de-shuttering etc. including all material, labour, formwork, equipments, other incidental expenses etc. all complete as directed by Engineer-in-charge.

Providing and casting in-situ Reinforced Cement Concrete in 1:1.5:3 nominal mix for footings, rafts, pedestals, walls, slabs, beams etc., for all levels, including dewatering, shuttering, de-shuttering, compacting with mechanical vibrators, hacking, curing etc. including all material, labour, formwork, other incidental expenses etc. all complete as directed by Engineer-in-charge. (Reinforcement shall be measured and paid seperately under relevant item.)

Supplying, cleaning, cutting, bending, supporting, binding with double ply of 22 SWG soft annealed wire and placing in position High yield strength deformed TMT reinforcement bars conforming to IS:1786 of grade Fe 500D, of approved make / brand on /at all levels and locations as per drawings, including handling and transport complete for all RCC works including supplying & placing concrete cover block etc. including all material, equipments, labour, other incidental expenses etc. all complete as directed by Engineer-in-charge. (Only authorised laps, spacer bars, chairs embedded in the concrete will be measured for payments.)

Supplying, fabricating and erection of steel structures using MS tubular/hollow sections, MS plates, angles,channels, Flats, etc. conforming to relevant IS standards with ISI mark of approved make and of minimum grade E250 (structural steel) and Yst 240 (tubular sections) respectively as per specifications and drawings (shop drawings are to be submitted by contractor and got approved from Engineer-in-charge ), fabricating, transporting to site and erecting composite members at all heights including providing necessary MS Foundation Bolts, fixing bolts of class 4.6, nuts, washers, cleats, stiffeners, gussets, base plate, and all necessary operations such as but not limited to straightening, bending, cutting, punching holes, drilling, grinding, threading, machining if specified, welding etc. all complete including cleaning, grinding and removing the welding burr, scales and supply & applying two coat of epoxy paint over two coats of red oxide zinc chromate primer of approved make, quality & colour etc. all complete as directed by Engineer-in-charge.

Providing and fixing precoated Galvanized iron profile sheets conforming to relevant IS standards with ISI mark of approved color manufactured with steel of minimum yield strength 240 MPa, 0.5mm TCT with minimum zinc coating of 120 gsm inclusive of all accessories like hexa-head, self drilling screws of required size at every crest with EPDM washers as per approved fabrication drawings, (which are to be supplied by contractor) including all sides, providing minimum 150mm overlap between sheets, providing ridge cap of minimum 300mm width as per specifications and sealing of laps/ends with silicon non-hardening type sealant wherever required as directed by Engineer-in-charge, including testing for leakages etc. for roofing sheet all complete including all material, labour, equipments, consumables, other incidental expenses etc. all complete as per directions of Engineer-in-charge. Note : Only Net area of galvanised iron sheet shall be considered for payment

Providing and fixing aluminium powder coated sections conforming to relevant IS standards with ISI mark of minimum 25 microns for doors, fixed/sliding windows and partitions with extruded built up standard tubular sections/appropriate other sections of approved make, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing/paneling, C.P. brass/stainless steel screws, American handle 125mm long both sides with mortise door lock vertical type, tower bolts on both sides, anchoring of bottom section to floor using necessary fixtures etc. all complete as per drawings (shop drawings are to be submitted by contractor and got approved from Engineer-in-charge) including all materials, labour charges, equipments, consumables, incidental expenses etc. all complete as directed by Engineer-in-charge. (Glazing, Aluminium composite panel etc. shall be paid for separately)

Providing and fixing 5 mm thick float clear glass panes in aluminium door, sliding/fixed window and partitions etc. with EPDM rubber gasket etc., labour charges,other incidental expenses etc. complete as per the drawings (shop drawings are to be submitted by contractor and got approved from Engineer-in-charge) all complete as directed by Engineer-in-charge.

Providing, fabricating and fixing 4mm thick aluminium composite panels in metallic colour of approved shade in aluminium semi glazed doors, semi glazed partitions etc., fixed over aluminium tubular frame work including necessary corner supports, stiffeners, perimeter channels, silicone sealant, joint cover profile and all necessary hardware and accessories and making it leak proof complete including all fixtures and hardwares for fixing ACP to aluminium sections (shop drawings are to be submitted by contractor and got approved from Engineer-in-charge) all complete as directed by Engineer-in-charge.

Part B - View Cutter

Providing, fabricating, and erecting structural steel work in built-up MS tubular frames, MS plates, angles,channels, Flats etc. conforming to relevant IS standards with ISI mark including providing packing plates, M10 mechanical anchor fasteners etc. to suit site conditions if warranted, including cutting, buffing, cleaning, welding, hoisting, anchoring, fixing in position and application of two coats of epoxy paint over two coats of red oxide zinc chromate steel primer of approved make and shade. The framing works shall be protected with proper endcappings. Rate is also inclusive of chipping of coping beam,column etc. for fixing of structural member to existing RCC column (if required as per site conditions), touch-up painting of existing U-angle with matching synthetic enamel after completion of framing work, making surface in good condition and provision of extra packing plate, anchor bolts, chipping of coping beam/column etc. if required, including all material, labour, consumables, welding/fixing charges, staging/scaffolding, chipping, painting, other incidental expenses to suit site conditions etc. complete in all respects as per the approved drawings and as directed by the Engineer-in-charge. Note : Minimum Grade of structural steel & tubular sections used shall be E250 & Yst 240 respectively conforming to relevant IS Standards.

Providing and fixing GI plain sheet of minimum 1.5 mm thickness with zinc coating not less than 250 GSM with CNC machine cut of approved design with minimum approx. 40% perforation on top of already constructed compound wall along IG road side. The sheet shall be applied with two coats of red oxide zinc chromate followed by two coats of epoxy paint of approved make and shade on both inner and outer face of GI sheet. The sheets shall be fixed securely to the structural framework using self drilling/self tapping screws at minimum 300mm spacing, washers, etc. as per approved drawing. The item includes cost and conveyance of all materials, CNC cutting charges, fixing hardware, labour charges for lifting, aligning, and fixing at all heights, staging /scaffolding arrangements, tools, consumables, wastage, and all other incidental charges etc. for completing the work in accordance with the specifications. A mock up shall be carried out prior for finalization of design /pattern as directed by the Engineer-in-charge. Payment shall be for elevation area of view cutter provided. Openings (air gap) provided between sheets shall not be considered for payment.