Relocation of 18m RTT cheranllor

Amount

Welding by gas or electric plant including transportation of plant at site etc. complete

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) : 3 graded stone aggregate 20 mm nominal size).

Reinforced cement concrete works in walls(any thickness)including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts excluding the cost of centring, shuttering, finishing and reinforcement.1) Up to floor five level

a) 1:1.5:3 ( 1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size)

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

Lintels, beams, plinth beams, girders.

Columns, pillars, piers, abutments, posts and struts

Suspended floors, roofs, landings, balconies and access platform

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.

a) 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).

Placing of anchor bolts in sets corresponding to the requirement of tower erection including all labours and handling charges and checking with template in line , level, plumb etc. as per direction of Engineer - in- charge.complete.

Demolishing RCC tower foundation structure at level up to floor three level manually/ by mechanical means including stacking of steel bars, disposal of building debris including lifting down from floor three level to ground level , loading , mechanical transportation and unloading at approved dumping ground within a lead of 5 km as per direction of Engineer - in- charge.

Finishing with Epoxy paint (two or more coats) at all locations prepared and applied as per manufacturer’s specifications including appropriate priming coat, preparation of surface, etc. complete.

On concrete work

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 , all cables of diameter up to 50mm dia,BTS ,DG,Battery sets ,PP rack etc from roof top to ground floor building etc and stacking 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 mobilisation charges of tools and plants etc. and nothing extra shall be paid on any account.)

Supplying MS foundation bolts, bolts and nuts for tower all complete etc at site.

Transportaion of tower materials including BTS equipment,DG,battery,PP rack etc by mechanical transport from Cheranelloor RTT site to SSA store near AL Jacob Over bridge at Ernakulam (Approx 12 km) including ,loading,unloading at SSA store ,sorting and stacking etc. complete.

(a) 24metre roof top tower

Transportaion of tower materials including BTS equipment,DG,battery ,PP rack etc by mechanical transport from SSA store near AL Jacob Over bridge at Ernakulam to new site (Approx 20 km) including shifting from ground floor to roof top of building,loading at SSA store,unloading at new site ,sorting and stacking etc. complete.

(a)18metre roof top tower

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

(a) 18 metres roof top tower

Erection of BTS , DG ,Battery ,PP rack,Cables etc

Providing and applying paint of approved specification over the four legged light weight communication tower ( NB ) indicated in item no.14(a) above.(One coat of Etch Primer(MRF, Asian paint or equivalent)should be applied first followed by two coats of zinc chromate primer should be applied.Over that two or more coats of enamel paint Orange/ White of approved brand and manufacture should be applied.)

Providing GI plate earth including excavation of pit of size 1500 x 1500 x 3000mm depth in all kinds of soil and placing 4nos of GI plates of size 600 x 600 x 6mm thick vertically at diagonally opposite ends in the excavated pit and inter connect the plates with 25 x 3mm GI strips with 2 nos of GI bolts and nuts of 10mm dia at each connection and placing galvanized iron pipe of 50mm dia and 3000mm length at the center of the GI plate grid and inter connect the pipe at minimum two sides with the connecting flat of the GI plates with tinned GI flat of size 25 x 3mm with GI bolts and nuts and till the pit upto a depth of 650mm with charcoal of 20mm nominal size and the remaining portion of pit shall be filled with loose soil free from stones and wet the entire sopil with water and cover the pit with 600 x 600 x 500 mm thick precast reinforced concrete slab having 75mm dia hole at the center to pass the GI pipe and construct a chamber of internal size not less than 280 x 280 x250mm with half brick wall including fixing C.I manhole cover of size 300 x 300mm of weight not ess than 7.20kg (cover & frame) and plastering the chamber on all sides with cement mortar 1:4 of 12mm thick ( 1 cement: 4 fine sand) and including disposal of surplus excavated earth if any within a distance of 5km lead as directed by the Engineer-in-charge.

Providing GI strips of size 50 x 3 mm one end connected to the tower leg with GI bolt and nuts including providing and connecting alround the four legs at the bottoms of tower and the other end shall be connected to the GI plate earth/ring eartgh as per item 15 with 2.Nos. of 10 mm dia GI bolts and nuts including clamping the down lead flat to walls/stems without any sharp bends using necessary clamps and screws 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 seperately.

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

a) 63 mm outer dia

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