Tightening of nut and bolts and replacement of damaged or missing members of GBT at Takrawad and Sabakheda of Mandsaur OA under BA Ujjain (2nd Call)

Amount

Supplying and fixing of missing TOWER members consisting of galvanised structural steel work in riveted, bolted or welded build up sections, trusses and framed work, including cutting to size with steel sections consisting of Angles, Flats, Plates and tubes fabricated as per approved drawing. The galvanizing shall be as per IS: 4759 with average mass of zinc coating of 610 gm/sqm (approximately 85 micron). The steel sections shall be of MS Grade 'A' as per IS: 2062. Cost of galvanization is inclusive. The payment shall be made as per the standard structural steel tables for the bare steel sectional weights. All complete as directed by the Engineer-in-Charge

Supplying and fixing of Galvanised nuts and bolts of approved brand and manufactirter with standard plain and spring washers conforming to BIS specifications of various sizes as required at site for erection of steel communications tower.

Tightening of bolts and nuts for the entire Ground based tower and other ancillary parts like gantry, ladder, platform etc. including fixing of torque resistant missing bolts, nuts, check nuts, plain and spring washers as per requirement and tightening to required specifications as per the directions of the Engineer-in-charge. (Rate includes the cost of tightening of existing bolts and nuts with plain washers and spring washers and checknuts, necessary scaffolding arrangement, helmets, ropes, pullies and other safety arrangements etc. complete as per directions of Engineer-in-Charge. Payment for missing bolts and nuts shall be made seperately under relevant item) Note: The work is to be executed under proper guidance and by experts. BSNL shall not be responsible for any mishaps, damages etc. occuring during the execution of the work. The rate includes the cost for taking necessary insurance for workmen compensation and for comprehensive risk coverage. Nothing extra shall be paid on this account. (a) 40 metre High Ground based Tower

Dismantling and dismembering of the ground based tower and stacking of the dismantled tower members within lead of 50 mtr. including stacking, sorting and numbering of all material including all fasteners, mounts, base plate, platforms, ladder, vertical cable tray, antenna, RF cable, electrical cable etc. all complete as per direction of Engineer-in-charge. Note: The rate of this item shall include the cost of all labour, T&P other equipments etc. required for all operations specified above including scaffolding, saftey measures, belts, insurance of labour etc. The rate includes all the above operations and nothing extra shall be paid for execution of the said work.

Labour for hoisting, fixing and re-erection of Ground based Structrual Steel Tower as per approved Generic requirements with all its necessary components viz. Antenna fixtures, Lightening Arrestor, Aviation lamp (as received at the time of dismantling), climbing ladder, platforms with railing and fixing with bolts, nuts, plain and spring washers. Cost includes necessary welding and alternation of any mismatching holes to the members wherever required complete in all respect as per direction of the Engineer-in-charge. (NOTE: Rate includes cost of all operations involved in hoisting and erection of tower including hire and labour charges of tools, plants and machineries all insurance, safety provision, acceptance testing etc., all complete and nothing extra will be paid.)

Writing with oil paint of approved quality and manufacturer at an appropriate place as directed by the Engineer-in-charge after completion of work the matter - "DATE OF NUT & BOLT TIGHTENING ......................" in the format DD/MM/YYYY.