PROVISION OF ROOF PROTECTION FOR EM INSTALLATION ALONG WITH ALLIED WORKS AND SPECIAL REPAIRS TO ROLLING SHUTTERS IN CERTAIN BUILDINGS AT ANDROTH UNDER AGE BR I OF GE NAVY LAKSHADWEEP

Amount

Excavation in post holes (or similar hole) each not exc 0.5 cum, getting out, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm, in any type of soil complete all as specified and directed.

Material and labour for plain cement concrete 1:4:8, type D-2, using 40mm graded crushed stone aggregate as in foundation, filling and mass concrete complete all as specified & directed.

Supply and fixing rolled mild steel works as in vertical supports, main and cross beams, hip and jack rafters; purlins where connected to common rafters and running rails and guides for sliding doors; including angle cleats or other connecting plates and similar work conforming to Fe-410-W(Gde-250 quality A), inculding necessary welding as required complete all as specified & directed.

Supply & Fixing Rolled mild Steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS: 1161-1979 grade St.-240, including necessary welding as required, complete all as specified and directed.

Supply & Fixing Pre painted galvanume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/clading to wall, fixed with self tapping screws complete all as specified and directed.

Supply & Fixing Pre painted galvanume aluminium zinc coating GI based plain steel sheet 0.50mm thick, of any colour, having tensile strength of 550 Mpa as in roof covering/clading to wall, fixed with self tapping screws complete all as specified and directed.

Supply and fix wind ties for roof including securing bolts, cutting to shapes as directed, drilling holes, notching etc, and similar work, steel confirming to Fe 290 of E-165 complete alll as specified and directed.

Material and labour for two coats of epoxy enamel paint on new steel and iron surfaces over one coat of epoxy primer on surfaces over 10cm width or girth including preparation of new surfaces complete all as specified & directed.

Dismantling existing chain link fencing complete all as specified and directed.

Supply and fix Green PVC coated galvanised chain link Wire Mesh not less than 3 mm thick (excluding PVC coating) and size of mesh 50 mm, duly fixed to existing concrete pillars, including necessary bolting as required, complete all as specified and diretcted.

M&L for MS round bars 10 mm dia as required, made to shape for securing chain link fencing etc and in similar works confirming to Fe 290 Gde E-165 complete all as specified and as directed.

M&L for preparation of new steel and iron surfaces of any description not otherwise described not exc 10cm girth when unconnected with other painting or when painted with a new tint and applying two coats of synthetic enamel paint over a coat of red oxide zink chromium primer complete all as specifed and as directed.

Material and labour for complete removal of existing treatment on plastered surfaces of external wall, gate pillars, posts etc, and application of two coats of cement base paint over a coat of suitable primer complete all as specified & directed.

Dismantling mild steel rolling shutters of any description, including side guides embedded in masonry wall complete all as specified and directed by Engr-in-Charge.

Supply and fixing of Aluminium rolling shtter with 1 mm thick aluminium extruded double wall slat of convex corrugation, with 2 mm thick aluminium side guide with & including all fittings and bottom component bar. Mild steel bracket with suitable stiffners and mild steel heavy duty shaft with sufficient outer diameter to carry torsional load and springs made up with special spring wire. The gate shall be fitted with mechanical bevel gear box manually operated with cranks and lever arm as recommanded by the manufacturer of the aluminium rolling shutters with suitable aluminium hood cover.(All the aluminium item shall be powder coated of not less than 50micron) including making the rolling shutters functional in all aspects with suitable locking arrangements complete all as specified and as directed by Engineer-In-Charge. Note: 1. Approximate maximum size of opening for rolling shutter shall be 3mX4.2m and minimum size of opening shall be 2.8m X 2.2m. 2. Measurement of rolling shutter will be the measurement of clear opening.

Dismantling concrete poles/ struts of any size complete all as specified and as directed by Engineer-In-Charge.

General Engineering and Constructions (BID ID -3135612)

WELTRONENGINEERINGSERVICES (BID ID -3135640)

SOORYA ASSOCIATES (BID ID -3131221)