RTT Peerumedu

Amount

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.

Making anchor bolts upto 20mm dia of 75cm length including threading & providing 2.0 nos nuts ,washers etc. and placing in position complete.

Making template of the foundation for the dismantled tower at Nedumkandom with necessary steel plates & angles.

Disposal of building debris including lifting down from floor five level to ground level loading, mechanical transportation and unloading at approved dumping ground within a lead of 5 km.

Dismantling weld mesh cage (2.65x2.65 mtr) with angle iron framework & sheet roofing housing the BTS over the terrace at floor V level & transporting to TE compound, Nedumkandom as directed by the engineer in charge.

Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases above plinth level up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III)derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

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

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Columns, Pillars, Piers, Abutments, Posts and Struts

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-500D or more.

Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement : 3 fine sand).

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer-in-charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment shall be made once irrespective of duration of scaffolding. Note: - This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done.

Drilling holes of 20 mm dia on roofing beam/columns upto 50 cm depth and fixing 16mm anchor bars bent to required shape and length up to 130 cm with high strength polyester resin anchor grout (Fosroc Lockfix-E77) or equivalent up 75% hole with manufacture's specification approved as per the direction of engineer in charge.

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.

Dismantling with care superstructure of three legged communication tower (upto 24 Mtr height roof top tower) including dismembering Structural sections of the tower viz. angles, flats, channels, gusset plate, base plate, bolts, nuts, ladder, working platform, cable tray, antenna fixtures, lightning arrestor, earth strips, all cables of diameter up to 50mm dia, etc. from roof top to the ground floor of the building etc. and stacking the same within 50 Mtr lead etc., complete as directed by the Engineer - in Charge. (The rate shall be inclusive of cost of providing safety measures, insurance charges and all labour involved in the operation including hire charges and mobilization charges of tools and plants etc. and nothing extra shall be paid on any account.)

Transportation of tower materials by lorry transport from Nedumkandom RTT site to T.E. Peerumedu (Approx. 60.0 km) including, loading, unloading, sorting and stacking etc. complete.

18.0 metre roof top tower

Erection of three legged light weight roof top communication tower(NB) indicated in item no.13(a) above.

18.0 metres roof top tower

Providing and applying paint of approved specification over the three legged light weight communication tower ( NB ) indicated in item no.15.1 above. Two or more coats of enamel paint Orange/ White of approved brand and manufacture should be applied over one coat of zinc chromate primer.

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories like nut bolts, lead strip, necessary excavation and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing G.I bus bar of 50 x 3 mm connected to the tinned bottom portion of lightning conductor and to the ring earth/plate earth with 2 no.s of 10 mm dia brass nuts & bolts at each connection. The both ends of the bus bar shall be tinned properly and the entire length of bus bar shall be drawn through heat shrink sleeve and shall be shrunk properly. The bus bar shall be clamped to the tower building walls at uniform interval of 1.5 Mt.. using proper clamps such that the bus bar shall be well insulated from the tower building walls all complete as directed by the Engineer-in-charge.

Providing and fixing spike type copper lightening arrester of 1.0mtr length with necessary fixtures at top of the tower. The spike shall be insulated from tower by Teflon material. The spike shall be connected to G.I plate earthing by GI strip which shall be paid separately.

Providing and fixing PVC pipes of pressure class of 4 Kg/Sq.cm complete fittings and clamps including cutting and making good the walls etc. complete

63 mm outer dia

Credit for usable steel reinforcement obtained from demolition of Reinforced Cement Concrete structural members.