Annual maintenance of high roof structures at various shops in Central Workshop/Ponmalai for the period of one year.

Description:- Maintenance of high roof structure at Central workshops/Ponmalai. S.No. Item Item Qty Qty Unit Unit Rate Basic Value Escl.(%) Amount Bidding Code Unit Schedule () B1-Items which are not covered by Unified Standard Schedule of rates

shall quote unit rate)

Description:- Maintenance of high roof structure for replacement of damaged AC/GI/Galvalume/FRP roofing sheet and roofing accessories at scattered location at various shop with new Railway's AC/GI/Galvalume/FRP roofing sheet and fixing the same in position at the height of 8m to 18m from

maintenance of crane track and crane girder available in various shops( approximate length 6m) at an approximate height of 5m to 8m height from floor level by using contractor's labour, safety equipment's, scaffolding arrangements etc., including to maintain the gauge level and alignment of the crane rack and crane girder as per the direction of the Engineer's representative.

2 TRICHCHIRAPPALLI DIVISION-ENGG/SOUTHERN RLY 2 Description:- Cleaning of GI sheet gutters available in the roof at a height of 3m to 15m above floor level duly removing the dust, rubbish, silt, debries, dead leafs etc., and dumping the same 100 m away from the siteand coal tarring one coat using 0.12 litre of coal tar per sqm mixed with water proofing compound of approved make on the cleaned gutter surface and minor holes to be plugged complete and as directed by the Engineer in charge ( All labour, materials, tools & plants, scaffolding etc., by the contractor)

Description:- Supply and fixing of GI gutter of suitable size of approved make and shape to suit site condition with 3.15mm thick GI plain sheets including bending to shape with CNC machine, transporting to site and welding rods and equipments, laying to slope at all heights with skilled

official concerned apart from fixing gutter nozzle to the proposed rainwater pipes. All welding portions should be properly sealed watertight with approved sealant. The rate includes cost of labour, materials, consumables etc., & the work should be carried out duly obtaining proper power shut down and within the restricted period.

working pressure (type B conforming to IS 13592)including specials as required and jointing and fixing in position with contractor's jointing materials as directed by the Engineer's Representative.

Description:- Hire charges for supply of welding machine cum generator of suitable capacity fit for

cost of fuel oil operator maintenance with all leads and lifts etc., complete and as directed by the Engineer in charge . ( payment based on log book for the actual number of days worked )

Description:- Maintenance of rolling shutters ( Various Type) at various shops at CWS/GOC duly providing scaffolding arrangements for a approximate height above 6m to undertake the minor

test the rolling shutter in to the working condition as directed by the Engineer's representative with contractor's all materials, labours, tools and plants, safety equipments, insurance etc., and conveyance and providing scaffolding arrangements with all labour charges etc., complete and as directed by the Engineer-in-charge.

Description:- Providing and fixing on wall face unplasticised - PVC moulde fittings/accessories for

ring conforming to IS: 5382,leaving 1Omm gap for thermal expansion-Bend 875 degree -110mm bend

percentage above or below the advertised value of schedule 'A1' (The advertised value is inclusive

of Railways escalation over CPWD-DSR 2023 basic value)

Item- 1 Maintenance of high roof structure at Central workshops/Ponmalai.

S No. Item Description of Item Unit Qty Rate Amount

10.0 STEEL WORK

10.1S General

10.1 Structural steel work in single section, fixed with or Kg 5000 117.35 586750

without connecting plate, including cutting, hoisting,

fixing in position and applying a priming coat of

approved steel primer all complete.

Supplying and fixing rolling shutters of approved

make, made of required size M.S. laths, interlocked

together through their entire length and jointed

together at the end by end locks, mounted on

specially designed pipe shaft with brackets, side

guides and arrangements for inside and outside

locking with push and pull operation complete,

including the cost of providing and fixing necessary

27.5 cm long wire springs manufactured from high

tensile steel wire of adequate strength conforming

to IS: 4454 - part1 and M.S. top cover of required

thickness for rolling shutters.

TRICHCHIRAPPALLI DIVISION-ENGG/SOUTHERN RLY

5 10.7 Providing and fixing ball bearing for rolling shutters. Each 25 492.35 12308.75

Extra for providing mechanical device chain and

crank operation for operating rolling shutters.

12.0 ROOFING

12.37S RAIN WATER SPOUT AND PIPE

Providing and fixing on wall face unplasticised Rigid

PVC rain water pipes conforming to IS : 13592 Type

12.41 A, including jointing with seal ring conforming to IS :

5382, leaving 10 mm gap for thermal expansion, (i)

Single socketed pipes.

Providing & fixing UV stabilised fiberglass reinforced

plastic sheet roofing up to any pitch, including fixing

with polymer coated 'J' or 'L' hooks, bolts & nuts 8

mm dia. G.I plain/bitumen washers complete but

excluding the cost of purlins, rafters, trusses etc.

The sheets shall be manufactured out of 2400 TEX

12.47 panel rovings incorporating minimum 0.3% ultra-

violet stabiliser in resin system under approximately

2400 psi and hot cured. They shall be of uniform

pigmentation and thickness without air pockets and

shall conform to IS 10192 and IS 12866.The sheets

shall be opaque or translucent, clear or pigmented,

textured or smooth as specified.

down (2" or 3" or 6" ) as specified

12.50 Providing and fixing precoated galvanised iron Sqm 1500 738.65 1107975

profile sheets (size, shape and pitch of corrugation

as approved by Engineer-in-charge) of total coated

thickness 0.50 mm (base metal of minimum 0.45

mm thickness with total coating thickness of 0.05

mm) with zinc coating 120 grams per sqm as per IS:

277, in 240 mpa steel grade, 5-7 microns epoxy

primer on both side of the sheet and polyester top

coat 15-18 microns. Sheet should have protective

guard film of 25 microns minimum to avoid

scratches during transportation and should be

supplied in single length upto 12 metre or as desired

by Engineer-in-charge. The sheet shall be fixed

using self drilling /self tapping screws of size (5.5x

55 mm) with EPDM seal, complete upto any pitch in

horizontal/ vertical or curved surfaces, excluding the

cost of purlins, rafters and trusses and including

cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel

sheet roofing accessories of total coated thickness

0.50 mm (base metal of minimum 0.45 mm

thickness with total coating thickness of 0.05 mm)

12.51 with Zinc coating 120 grams per sqm as per IS: 277,

in 240 mpa steel grade, 5-7 microns epoxy primer

on both side of the sheet and polyester top coat 15-

18 microns using self drilling/ self tapping screws

13.0 FINISHING

13.44S EXTERIOR FINISHING

13.50 Applying priming coat:

13.50.3 With ready mixed red oxide zinc chromate primer of Sqm 1500 67.4 101100

13 approved brand and manufacture on steel

galvanised iron/ steel works

TRICHCHIRAPPALLI DIVISION-ENGG/SOUTHERN RLY

13.50.4 With ready mixed red oxide zinc chromate primer of Sqm 1500 36.1 54150

14 approved brand and manufacture on steel work

Painting with aluminium paint of approved brand

and manufacture to give an even shade .

15.0 DISMANTLING AND DEMOLISHING

15.1S General

Dismantling roofing including ridges, hips, valleys

15.28 and gutters etc., and stacking the material within 50

metres lead of:

Dismantling C.I. or asbestos rain water pipe with

15.42 fittings and clamps including stacking the material

within 50 metres lead :