Construction of 1 Nos Rectangular Galvanized press P.S. Surface Tank 1 Lakh litr capacity at Tsunami Shelter No. 1 Brookshbad, Ward No. 22

Amount

Fabrication, erection, and commissioning of a rectangular galvanized pressed steel (P.S.) tank of 1,00,000 liters capacity, mounted on a 6.0 m high galvanized structural staging above ground level. The structural staging shall be hot-dip galvanized with a coating of 275 gm/sq.m in accordance with relevant IS standards. The foundation shall be designed as per applicable IS codes, comprising frame-structured isolated footings in M20 grade concrete. The scope of work shall include the supply and installation of all necessary components such as: Pressed steel plates, corner angles, joint angles, Cover boxes, joint boxes, cleats, Bracing angles, truss angles, rafters, posts, Rod cover with manhole cover, Internal ladder, water level indicator, Nuts, bolts, washers, SPT black putty, lead sealants, Inlet, outlet, and overflow pipe connections. All plates and structural components shall be hot-dip galvanized as per relevant standards. Proper joining and tightening shall be carried out using approved filler materials, as certified by the Engineer-in-Charge. The work shall also include design, preparation of structural drawings, field survey, and all necessary tests to ensure structural integrity and compliance with applicable codes and specifications.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

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

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:4:8 (1 Cement : 4 coarse sand(zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources).

1:2:4 (1 cement : 2 coarse sand(zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for :

Foundations, footings, bases of columns, etc. for mass concrete

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, PVC coated to achieve outer dia not less than 5 mm in required colour and shade

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 fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. : External work

80 mm dia nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :

50 to 80 mm dia nominal bore

Providing and fixing G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete (New work)

80 mm dia nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :

80 mm dia nominal bore

A Palani (BID ID -57194)

Mega Engineers and Builders (BID ID -57191)