Tower Maintenance Work Structural Checks And Its Rectification Of Gbt Rtt Sites Installed Prior To 2010 Bsnl Nbsl In Ctd Part-L For Area Under The Jurisdiction Of Csd-I Alp-1 Alp-Ii Area

Tender Notice

28664089
Tower Maintenance Work Structural Checks And Its Rectification Of Gbt Rtt Sites Installed Prior To 2010 Bsnl Nbsl In Ctd Part-L For Area Under The Jurisdiction Of Csd-I Alp-1 Alp-Ii Area
Indian
West Bengal
28-07-2021
05-08-2021
10-08-2021

Tender Details

Tower Maintenance Work Structural Checks And Its Rectification Of Gbt Rtt Sites Installed Prior To 2010 Bsnl Nbsl In Ctd Part-L For Area Under The Jurisdiction Of Csd-I Alp-1 Alp-Ii Area

Key Value

Document Fees
INR 590 /-
EMD
Refer document
Tender Value
INR 29.49 Lakhs /-

BOQ Items

Name of the work :Structural Checks and its rectification of GBT & RTT sites installed prior to2010 (BSNL & NBSL) in CTD.Part-l:- For area under the jurisdiction of CSD-I (ALP-1 & ALP-II area)
Sl. No. Item Description
1Labour for checking of all joints, members and tightening by torque wrench of all nuts and bolts, washers and spring washers etc. of all components of tower viz. legs, bracings, platform with railing, climbing ladder, wave guide rack, antenna fixtures,gussset plates and joint cleat, splicing of members, horizontal cable tray with posts etc for fixing GSM antenna including dismantling, lowering down for repair or replacement of flulty members and re-erection/ refitting the same (if any) complete in all respect and as per direction of Engineer in charge.The rater includes the cost of all moperations involved including hiring and mobilisation of labours, tools and tackles, safety arrangement of work men like helmet, safety belt and insurane coverage of labourers and nothing will be paid extra.
260 metre GBT
340 metre GBT
415 Metre RTT
5Supplying at site galvanised steel tower materials of approved make and brand with average mass of zinc coating of 610 gm/Sqm ( 85 micron approx.) consisting of flats, angles, tees, channels, plates and gusset plates, antenna fixtures, nuts, bolts, washersand spring washers with necessary punched holes holes for bolts etc s per requirements at site and as per direction of Enginee in Charge. The structural steel members, galvanisation, nuts and bolts, washers and spring washers shal confirm to relevent BIS code and standerd tower specification.
6Painting two or more coats with synthetic enamel paint of approved brand and colour (International white and orange ) over onecoat of zinc chromate yellow primer of approved brand as per recommendation of International Civil Aviation Rule in galvanised structural steel old F L tower including all components(Rate is inclusive of cost of all materials, transportation and labour involved including lifting of materials, preparation of surface removing old painting (if any), tools and plants and safety arrangements of labours, insurance premium of labourers and
760 metre GBT
840 metre GBT
915 Metre RTT
10Credit for dismantled unserviceable materials
11i) MS angle, flat, plate, bolts and nuts etc.
12Reconcreting (Manually by throwing concrete vigorously against the paste before the cement paste hardnes or develops shrinkage cracks ) upto a average depth of 40 mm thick in two or more layers manually with cement concrete 1:1.5:3(1 cement:1.5 course sand:3 graded stone agreegate 6 mm nominal size) admixed with a super plasticizer @ 1% by weight of cement) made of sodium napthalene-dulphonic acid formaldehyde concentrate(Ph7-9) such as permacrete manufactured by Engineering services international of equivalent.
13Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :
141:2:4 (1 cement : 2 coarse sand(zone-III) : 4 graded stone aggregate 20 mm nominal size)
15Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks
161:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)
171:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)
18Centering and shuttering including strutting, propping etc. and removal of form work for :
19Retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc..
20Foundations, footings, bases for columns.
21Columns, piers, abutments, pillars, posts and struts.
2212 mm cement plaster of mix :
231:4 (1 cement: 4 fine sand)
24Smooth finishing of the exposed surface of R.C.C. work with 6 mm thick cement mortar 1:3 (1 Cement : 3 fine sand)
25Finishing walls with Acrylic Smooth exterior paint of required shade :
26New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm).
27Welding by gas or electric plant including transportation of plant at site etc. complete.
28Applying priming coat :
29With ready mixed red oxide zinc chromate primer of approved brand and manufacture on steel galvanised iron/steel works
30Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :
31Two or more coats on new work.
32Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.
33Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)
34Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50m outside the periphery of the area cleared.
35Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead
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