data rates gate works 6
TRANSCRIPT
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GATE / HOIST AND ALLIED WORKS
= 0.0335 ( L2 x H x h )
0.716
Where ( L ) is length and ( H ) is height of gate and ( h ) is head of water above sill in Rm.
= 0.0335 x( 14.7 x 14.7 x 8.6 x 8.26 )0.716
: 33.289
Consider hoist capacity including 25 % reserve @ 1.5 times the weight of gate :
( 1.5 x 33.289 ) : 49.9335
Round off the hoist capacity to next 10 tonne : 50 tonnes
Consider 15 m span and 10 m over all height ( 9 m columns and 1 m beams ) for bridge. Assessment of weight of structural steel for bridge:
Columns with bracings, anchors, stiffeners etc @ 400 kg / m for 9 m ht : 3600.00 kg
Beams with cross beams, stiffeners etc @ 400 kg / m for 15 m span : 6000.00 kg
Total : 9600.00 kg
Other accessories such as railing, chequered plate, ladder etc @ 10 % : 960.00 kg
Total : 10560.00 kg
The weight computed as above based on empirical formula is further checked by computing the
actual weight as per fabrication drawings of hoist bridge structure for vertical lift barrage gate of
same size provided for one of the barrage.
Actual weight of hoist supporting bridge as per data in Item : 21 of Annexure-2 : 10239.00 kg
Consider actual weight for data rate analysis.
Consider details of Material / Gas cutting / Welding based on fabrication drawings of hoist
bridge structure for vertical lift barrage gate provided for one of the barrage for rate analysis
( for details refer Item : 21 of Annexure-2 ).
1. Requirement of materials:
a. Structural steel conforming to IS : 2062 :
Angles / beams / channels with 2.5 % wastage ( 4453 x 1.025 ) : 4564 kg
Plates / flats with 2.5 % wastage ( 5431 x 1.025 ) : 5567 kg
Chequered plate with 2.5 % wastage ( 133 x 1.025 ) : 136 kg
b. MS pipes 32 mm dia ( 30.86 x 1.025 ) : 32 Rm
MS pipes 25 mm dia ( 61.72 x 1.025 ) : 64 Rm
c. Bolt / Nut / Washer MS bolt / Nut / Washers with 2.5 % wastage ( 18 x 1.025 ) : 18.5 kg
d. Welding electrodes ( General purpose / Low hydrogen ) :
GP / LH electrodes as per data sheet ( Item:21 Annexure-2 ) : 4731 Nos
Add for variations / wastage / misc welding @ 10 % ( 4731 x 0.1 ) : 473 Nos
Total requirement of GP / LH electrodes : 5204 Nos
for stitch weld GP electrodes @t 10 % of total ( 5204 x 0.10 ) : 520 Nos
for run welding LH electrodes @ 90 % of total ( 5204 x 0.90 ) : 4684 Nos
2. Cutting :
Length of cutting assuming cutting for 2 sides as per data sheet : 290 Rm
Add for variations ( cutting more than 2 sides / odd shape etc ) at 10 % : 29 Rm
Total : 319 Rm
For cutting structural steel sections to required sizes gas cutting is assumed.
Length of steel to be cut by using gas manually : 100 m
Length of steel to be cut by gas using pug cutting machine : 219 mTime for gas cutting manually at ( av ) 2 m cutting / hour : 50 hours
Time for gas cutting by pug cutting machine at ( av ) 3 m cutting / hour : 73 hours
Acetelyne gas @ 0.6 cum / hour ( 50 + 73 ) x 0.60 : 74 cum
Oxygen gas @ 1.8 cum / hour ( 50 + 73 ) x 1.80 : 222 cum
Use of gas cutting torch with 50 min / hr working ( 50 x 60 / 50 ) : 60 hours
Use of pug cutting machine with 50 min / hr working ( 73 x 60 / 50 ) : 88 hours
3. Welding :
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GATE / HOIST AND ALLIED WORKS
Length of welding as per data sheet : 473 Rm
For stich welding @ 2 hrs usage / shift & @ 15 electrodes / hr
( 520 / 15 ) x 8 / 2 : 139 hours
For run welding @ 6 hrs usage / shift & @ 15 electrodes / hr
( 4684 / 15 ) x 8 / 6 : 416 hours
Total : 553 hours
Deploy welding transformer for 553 hours.
Fuel / Energy charges @ 25 % hrs for stitch welding & @ 75 % hrs for run welding.
( 139 x 0.25 + 416 x 0.75 ) : 347 hours
4. Surface cleaning and painting :
Painting area for hoist bridge @ 20 sqm per tonne ( 10.239 x 20 ) : 205 sqm
2 coats of zinc chromate red oxide primer .
Quantity of primer paint for 205 sqm @ 12 sqm / ltr / coat : 35 ltr
3 coats of synthetic enamel paint.
Quantity of synthetic enamel paint for 205 sqm @ 12 sqm / ltr / coat : 51 ltr
As surface cleaning by sand blasting is hazardous, it is proposed to adopt chemical treatment
to remove grease, rust, scaling etc., and to form phasphate coating to prevent further rusting
before applying primer painting.
Quantity of rust cleaner / inhibitor for 205 sqm @ 8 sqm / ltr : 26 ltr
5. Requirement of other machinery :
For handling of parts during fabrication and erection 8 t mobile crane for 12 hours and stationery
derric crane for 40 hours considered.
For drilling holes in plates 8 hours use of drilling machine considered.
For grinding and finishing weld joints in liner plates 8 hours use of grinding machine considered.
6. Requirement of work force :
Work component Foreman Helper /
Painter Cl-II
Cutting sections 148 hours 9 18 18 36
Fabricating by stitch welding 139 hours 9 17 --- 34
Run welding 416 hours 5 --- 52 52
For erection of columns & bracings 2 4 --- 16
For erection of beams / cross beams 4 8 --- 16
For erection of railing / covering etc 1 2 --- 4
Cleaning surface 205 sqm @ 15 sqm/day --- --- --- 14
Painting ( 5 x 205 ) sqm @ 15 sqm / day --- --- --- 61
Finishing / Cleaning 1 1 --- 1
Total : 31 50 70 234
Note : a. It is assumed that all stitch welding will be done by fabricator. Hence, no separate provision
is considered for welder for stitch welding.
b. Workforce for painting 2 coat primer and 3 coats finishing paint consists of 51 Painters Cl-II
at 15 sqm / day and 10 helpers to assist painters.
7. Excise duty on supply :Excise duty is applicable on supply of fabricated parts. The cost of materials is inclusive of all
taxes/ duties. Therefore, for purpose of rate analysis 75 percent of total cost excluding the cost
of materials ( assuming 25 % erection cost ) is considered for assessing excise duty.
8. Use rate of materials :
Cost of welding set @ Rs: 4500.00 / Each Rs: 4500.00
Life of welding set : 1000 hours
Use rate of welding set per hour ( cost / life ) Rs: 4.50
Cost of gas cutting set @ Rs: 1500.00 / Each Rs: 1500.00
Fabricator / Welder
Erector /
Marker / Gas cutter /
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GATE / HOIST AND ALLIED WORKS
7 Sundries LS 20.00 30.00 600.00
Total Rs: 43700.00
Add for small Tools and Plants @ 1% Rs: 437.00
Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 2838.40
Add for Contractor's Overheads @ 5% Rs: 2185.00
Total hire charges of Machinery : Rs: 49160.40
C. LABOUR:
Sl No Unit Amount
in Rs.
1 Crew for Mobile crane Hour 12.00 75.70 908.40
2 Crew for Drilling machine Hour 8.00 59.50 476.00
3 Crew for Grinding machine Hour 8.00 59.50 476.00
4 Foreman Day 31.00 177.00 5487.00
5 Marker / Fabricator / Erector Day 50.00 157.50 7875.00
6 Gas cutter Day 18.00 157.50 2835.00
7 Welder ( General ) Day 52.00 157.50 8190.00
Contd
C. LABOUR ( Contd ) :
Sl No Unit Amount
in Rs.
Contd
8 Helper fabrication / erection Day 159.00 141.50 22498.50
9 Helper for cleaning / painting Day 24.00 141.50 3396.00
10 Painter Cl - II Day 51.00 141.50 7216.50
11 Electrician Day 5.00 143.00 715.00
Total Rs: 60073.40
Add for small Tools and Plants @ 1% Rs: 600.73
Add for Contractor's Profit @ 10% Rs: 6007.34
Add for hidden cost on Labour @ 15% Rs: 9011.01
Add for additional hidden cost on labour @ 15% Rs: 9011.01
Add for Contractor's Overheads @ 5% Rs: 3003.67
Total cost of Labour : Rs: 87707.16
ABSTRACT:
A. Cost of Materials Rs: 609410.41
B. Hire charges of Machinery Rs: 49160.40
C. Cost of Labour Rs: 87707.16
TOTAL Rs: 746277.97
Add for excise duty on 75 percent cost of
Machinery / Labour components @ 8.24% Rs: 8458.42
Add for insurance charges @ 1.00% Rs: 7462.78 Add for designs and drawings @ 2.50% Rs: 18656.95
Add for zigs / supports / winches / chain-pulley @ 2.50% Rs: 18656.95
Add for power supply arrangements @ 2.00% Rs: 14925.56
Add for enabling works @ 1.40% Rs: 10447.89
Total Rs: 824886.52
Add for 2 rehandling leads for 1 km including loading and unloading :
Fabricated parts 2x10.239 tonnes @ Rs: 129.10 / tonne Rs: 2643.71
Add for transportation upto work site @ 3.00% Rs: 24746.60
Rate
in Rs.
QuantityDescription
QuantityDescription
in Rs.
Rate
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GATE / HOIST AND ALLIED WORKS
Total cost for 10.239 tonne Rs: 852276.82
Rate per tonne Rs: 83200.00
Rate approved per tonne Rs: 83200.00
SECTION: GATE / HOIST & ALLIED WORKS. YEAR : 2010-11 ITEM No: 22
ITEM: Design, fabrication, supply, erection, testing and commissioning of adequate capacity rope
drum hoist consisting of hoist platform, rope drum, pulleys, gear system, electri c motor,
electro-magnetic brake system, manual operation assembly, position indicator, control panel,
wire rope etc., with all accessories for operating vertical lift roller gates for barrage
including cost of all materials, machinery, labour, cutting, bending, aligning, anchoring, welding,
finishing, cleaning, applying two coats of zinc chromate red oxide primer and three coats of
approved synthetic enamel paint etc., complete with all leads and lifts.
DATA:Rope drum hoist for vertical lift barrage gate consists of hoist supporting frames, pulley
supports, pulleys, drive stool, rope drums, shafts, couplings, gears and pinions, plummer
blocks, gear box, electric motor, hand operation assembly, brake, wire rope, gate position
indicator, switch box etc. with related accessories.
Consider rope drum hoist for operating barrage gate for clear opening of 13.72 m x 8.26 m.
For vent opening of 13.72 x 8.26 m the approximate size of gate leaf will be 14.7 x 8.6 m.
Head of water above sill level considered : 8.26 m
Generally the capacity of hoist required for barrage gate will be 1.5 times the weight of gate.
Weight of hoist with all accessories is assumed at 0.1 tonne per tonne capacity of hoist as the
hoist is supported on steel bridge and no anchorages and base frames are required.
Weight of gate leaf in tonnes based on empirical formula :
= 0.0335 ( L2 x H x h )
0.716
Where ( L ) is length and ( H ) is height of gate and ( h ) is head of water above sill in Rm.
= 0.0335 ( 14.7 x 14.7 x 8.6 x 8.26 )0.716
: 33.289
Consider capacity of hoist including 25 % reserve capacity at 1.5 times the weight of gate :( 1.50 x 33.289 ) : 49.933 tonnes
Round off the capacity of hoist to next 10 tonne : 50.00 tonne
Consider Weight of hoist with all accessories @ 0.1 t / tonne capacity of hoist :
( 50 x 0.10 ) : 5.00 tonnes
The hoist capacity and hoist weight computed as above based on empirical formulae are further
checked by varifying / computing the actual capacity and weight as per fabrication drawings for
vertical lift barrage gate rope drum hoist of same capacity provided for one of the barrage.
Actual capacity of rope drum hoist as per data sheet : 50.000 tonnes
Actual wt of barrage gate rope drum hoist as per data in Item :22 of Annexure-2 : 5.069 tonnes
Consider actual weight for data rate analysis.
Consider details of Material / Gas cutting / Welding based on fabrication drawings of rope drum
hoist for vertical lift barrage gate provided for one of the barrage for rate analysis ( for details
refer Item : 22 of Annexure-2 ).
1. Requirement of materials:a. Structural steel conforming to IS : 2062 :
Angles / beams / channels / bars with 2.5 % wastage ( 410x1.025 ) : 420.00 kg
Plates / flats with 2.5 % wastage ( 219 x 1.025 ) : 225.00 kg
b. Cast steel components conforming to IS : 1030 :
Rope drums 2 Nos / Gears : 1290.00 kg
Pinions : 98.00 kg
Pulleys 8 Nos / Couplings 2 Nos : 650.00 kg
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GATE / HOIST AND ALLIED WORKS
Plummer blocks / Hubs : 250.00 kg
c. Alloy steel steel components conforming to IS : 1570 :
Shafts / Keys : 350.00 kg
Pins : 96.00 kg
d. Alluminium/ Bronze alloy components conforming to IS : 305 :
Bearings / Bush : 100.00 kg
e. Bolt / Nut / Washers conforming to IS : 1363 :
MS Bolts / Nuts / Washers with 2.5 % wastage ( 25 x 1.025 ) : 26.00 kg
f. Steel wire rope conforming ti IS 2266 :
28 mm dia 6 / 37 construction 1 No 120 Rm @ 2.71 kg / m : 435.00 kg
g. Other components :
Manual operation assembly : 1 No.
Worm reducer ( size 800 ) : 1 No
Electric motor 12.5 hp : 1 No.
Gate position indicator : 1 No.
Ele-magnetic brake : 1 No.
Electric cable / switch / control panel etc : 1 set
h. Welding electrodes ( General purpose / Low hydrogen ) :
GP / LH electrodes as per data sheet ( Item:22 Annexure-2 ) : 553 Nos
Add for variations / wastage / misc welding @ 10 % ( 553 x 0.1 ) : 55 Nos
Total requirement of GP / LH electrodes : 608 Nos
for stitch weld GP electrodes @ 10 % of total ( 608 x 0.10 ) : 61 Nos
for run welding LH electrodes @ 90 % of total ( 608 x 0.90 ) : 547 Nos
2. Cutting :
Length of cutting assuming cutting for 2 sides as per data sheet : 37 Rm
Add for variations ( cutting more than 2 sides / odd shape etc ) at 10 % : 4 Rm
Total : 41 Rm
For cutting structural steel sections to required sizes gas cutting is assumed.
Length of steel to be cut by using gas manually : 20 m
Length of steel to be cut by gas using pug cutting machine : 21 m
Time for gas cutting manually at ( av ) 2 m cutting / hour : 10 hours
Time for gas cutting by pug cutting machine at ( av ) 3 m cutting / hour : 7 hours
Acetelyne gas @ 0.6 cum / hour ( 10 + 7 ) x 0.60 : 10 cum
Oxygen gas @ 1.8 cum / hour ( 10 + 7 ) x 1.80 : 30 cum
Use of gas cutting torch with 50 min / hr working ( 10 x 60 / 50 ) : 12 hours
Use of pug cutting machine with 50 min / hr working ( 7 x 60 / 50 ) : 9 hours
3. Welding :
Length of welding as per data sheet : 53 Rm
For stich welding @ 2 hrs usage / shift & @ 15 electrodes / hr
( 61 / 15 ) x 8 / 2 : 16 hoursFor run welding @ 6 hrs usage / shift & @ 15 electrodes / hr
( 547 / 15 ) x 8 / 6 : 49 hours
Total : 65 hours
Deploy welding transformer for 65 hours.
Fuel / Energy charges @ 25 % hrs for stitch welding & @ 75 % hrs for run welding.
( 16 x 0.25 + 49 x 0.75 ) : 41 hours
4. Surface cleaning and painting :
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GATE / HOIST AND ALLIED WORKS
Painting area for hoist at 20 sqm / tonne of str steel ( 0.645 x 20 ) : 13 sqm
2 coats of zinc chromate red oxide primer.
Quantity of primer paint for 13 sqm @ 12 sqm / ltr / coat : 2 ltr
3 coats of synthetic enamel paint.
Quantity of synthetic enamel paint for 13 sqm @ 12 sqm / ltr /coat : 3.5 ltr
As surface cleaning by sand blasting is hazardous, it is proposed to adopt chemical treatment
to remove grease, rust, scaling etc., and to form phasphate coating to prevent further rusting
before applying primer painting.
Quantity of rust cleaner / inhibitor for 13 sqm @ 8 sqm / ltr : 1.5 ltr
5. Requirement of other machinery :
For lifting and placing in position hoist drums, worm reducers, gears, floating shafts etc use of
25 t mobile crane for 56 hours with energy charges for 28 hours considered.
For handling of parts during fabrication and transportation use of 8 t mobile crane for 40 hours
with energy charges for 20 hours considered.
For drilling holes for bolts 16 hours use of drilling machine considered.
For grinding and finishing weld joints 8 hours use of grinding machine considered
6. Requirement of work force :
Work component Foreman Helper /
Painter Cl-II
Cutting sections/ drilling holes 21 hours 1 3 3 6
Fabricating by stitch welding 16 hours 1 2 --- 4
Run welding 49 hours 1 --- 6 6
Erection of hoist frame 2 2 --- 8
Erection of drums / gears / shafts 4 8 --- 16
Erection of pulleys / plummer blocks 2 4 --- 8
Erection of worm reducers / brake / motor 2 4 --- 8
Erection of other accessories 1 2 --- 2
Erection of control panel / cabling 1 1 --- 2
Checking and running without rope 1 2 --- 4
Cleaning surface 13 sqm @ 15 sqm/day --- --- --- 1
Painting ( 5 x 13 ) sqm @ 15 sqm / day --- --- --- 4
Rope fixing and checking 2 4 --- 8
Trial running by lowering / lifting gate 1 2 --- 4
Final checking / Finishing / cleaning 1 1 --- 2
Total : 20 35 9 83
Note : a. It is assumed that all stitch welding will be done by fabricator. Hence, no separate provision
is considered for welder for stitch welding.
b. Workforce for painting 2 coat primer and 3 coats finishing paint consists of 3 Painters Cl-II
at 15 sqm / day and 1 helper to assist painters.
7. Excise duty on supply :
Excise duty is applicable on supply of fabricated parts. The cost of materials is inclusive of alltaxes/ duties. Therefore, for purpose of rate analysis 75 percent of total cost excluding the cost
of materials ( assuming 25 % erection cost ) is considered for assessing excise duty.
8. Use rate of materials :
Cost of welding set @ Rs: 4500.00 / Each Rs: 4500.00
Life of welding set : 1000 hours
Use rate of welding set per hour ( cost / life ) Rs: 4.50
Cost of gas cutting set @ Rs: 1500.00 / Each Rs: 1500.00
Life of gas cutting set : 600 hours
Gas cutter /
Welder Fabricator /
Marker /
Erector /
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GATE / HOIST AND ALLIED WORKS
Use rate of gas cutting set per hr ( cost / life ) Rs: 2.50
RATE ANALYSIS UNIT : 5.069 tonne wt
A. MATERIALS: 50.00 t capacity
Sl No Unit Amount
in Rs.
1 Structural steel
Angles / beams / channels / bars kg 420.00 37.95 15939.00
Plates / flats kg 225.00 40.00 9000.00
2 Cast steel components :
Rope drums 2 Nos / Gears kg 1290.00 145.00 187050.00
Pinions kg 98.00 150.00 14700.00
Pulleys 3 Nos / Couplings 2 Nos kg 650.00 125.00 81250.00
Plummer blocks / Hubs kg 250.00 125.00 31250.00
Contd
A. MATERIALS ( Contd ) : Sl No Unit Amount
in Rs.
Contd
3 Alloy steel components
Shafts / Keys kg 350.00 175.00 61250.00
Pins kg 96.00 215.00 20640.00
4 Bronze alloy components :
Bronze bearings / bush kg 100.00 635.00 63500.00
5 Wire rope 28 mm dia 6/37 construction kg 435.00 105.00 45675.00
6 MS Bolt / Nut / Washer kg 26.00 55.00 1430.00
7 Worm reducers No. 1.00 120000.00
8 Electric motor 12.5 hp No. 1.00 60000.00 60000.00
9 Manual operating system No. 1.00 22500.00 22500.00
10 Gate position indicator No. 1.00 9000.00 9000.00
11 Ele-magnetic brake No. 1.00 15000.00 15000.00
12 Electric cable / switch / control panel etc LS 1.00 18000.00 18000.00
13 Oxygen gas cum 30.00 48.00 1440.00
14 Acetyline gas cum 10.00 258.00 2580.00
15 Welding electrodes ( general purpose ) Nos 61.00 6.00 366.00
16 Welding electrodes ( low hydrogen ) Nos 547.00 12.00 6564.00
17 Zinc chromate red oxide primer ltr 2.00 140.00 280.00
18 Synthetic enamel ( 1st quality ) paint ltr 3.50 176.00 616.00
19 Rust cleaner / inhibitor ltr 1.50 240.00 360.00
20 Grease kg 50.00 194.00 9700.00
21 Use rate welding holder set Hour 65.00 4.50 292.50
22 Use rate gas cutting torch set Hour 12.00 2.50 30.00
23 Wire brush Nos 2.00 30.00 60.0024 Sundries LS 1000.00 30.00 30000.00
Total Rs: 828472.50
Add for small Tools and Plants @ 1% Rs: 8284.73
Add for Contractor's Profit @ 10% Rs: 82847.25
Add for Contractor's Overheads @ 5% Rs: 41423.63
Total cost of Materials : Rs: 961028.10
B. MACHINERY:
Perticulars
in Rs.
in Rs.
Quantity Rate
Perticulars RateQuantity
120000.00
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GATE / HOIST AND ALLIED WORKS
Sl No Unit Amount
in Rs.
1 Welding transformer Hour 65.00 12.00 780.00
Fuel / Energy charges Hour 41.00 60.00 2460.00
2 Mobile crane 25 t Hour 56.00 3804.00 213024.00
Fuel / Energy charges Hour 28.00 1375.00 38500.00
3 Pug cutting machine Hour 9.00 16.00 144.00
Fuel / Energy charges Hour 9.00 3.00 27.00
4 Mobile crane 8 t Hour 40.00 362.00 14480.00
Fuel / Energy charges Hour 20.00 495.00 9900.00
5 Grinding machine Hour 16.00 18.00 288.00
Fuel / Energy charges Hour 16.00 25.00 400.00
Contd
B. MACHINERY ( Contd ) : Sl No Unit Amount
in Rs.
Contd
6 Drilling machines Hour 8.00 18.00 144.00
Fuel / Energy charges Hour 8.00 25.00 200.00
7 Sundries LS 600.00 30.00 18000.00
Total Rs: 298347.00
Add for small Tools and Plants @ 1% Rs: 2983.47
Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 6948.70
Add for Contractor's Overheads @ 5% Rs: 14917.35
Total hire charges of Machinery : Rs: 323196.52
C. LABOUR:
Sl No Unit Amount
in Rs.
1 Crew for Mobile crane 8 t Hour 40.00 75.70 3028.00
2 Crew for Mobile crane 25 t Hour 56.00 72.60 4065.60
3 Crew for Drilling machine Hour 8.00 59.50 476.00
4 Crew for Grinding machine Hour 16.00 59.50 952.00
5 Foreman Day 20.00 177.00 3540.00
6 Marker / Fabricator / Erector Day 35.00 157.50 5512.50
7 Gas cutter Day 3.00 157.50 472.50
8 Welder ( General ) Day 6.00 157.50 945.00
9 Khalasi Day 90.00 145.50 13095.00
10 Helper fabrication / erection Day 78.00 141.50 11037.00
11 Helper for cleaning / painting Day 2.00 141.50 283.00
12 Painter Cl - II Day 3.00 141.50 424.5013 Electrician Day 3.00 143.00 429.00
Total Rs: 44260.10
Add for small Tools and Plants @ 1% Rs: 442.60
Add for Contractor's Profit @ 10% Rs: 4426.01
Add for hidden cost on Labour @ 15% Rs: 6639.02
Add for additional hidden cost on labour @ 15% Rs: 6639.02
Add for Contractor's Overheads @ 5% Rs: 2213.01
Total cost of Labour : Rs: 64619.75
Description
in Rs.
Quantity RateDescription
in Rs.
Description RateQuantity
RateQuantity
in Rs.
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GATE / HOIST AND ALLIED WORKS
ABSTRACT:
A. Cost of Materials Rs: 961028.10
B. Hire charges of Machinery Rs: 323196.52
C. Cost of Labour Rs: 64619.75
TOTAL Rs: 1348844.37
Add for excise duty on 75 percent cost of
Machinery / Labour components @ 8.24% Rs: 23967.05
Add for insurance charges @ 1.00% Rs: 13488.44
Add for designs and drawings @ 2.50% Rs: 33721.11
Add for zigs / supports / winches / chain-pulley @ 2.50% Rs: 33721.11
Add for power supply arrangements @ 2.00% Rs: 26976.89
Add for enabling works @ 1.40% Rs: 18883.82
Total Rs: 1499602.78
Add for 2 rehandling leads for 1 km including loading and unloading :
Fabricated parts 2 x 5.069 tonnes @ Rs: 129.10 / tonne Rs: 1308.82 Add for transportation upto work site @ 3.00% Rs: 44988.08
Total cost for 5.069 tonne weight Rs: 1545899.68
50.000 tonne capacity
Rate per tonne weight Rs: 304970.00
Rate per tonne capacity Rs: 30900.00
Rate approved per tonne capacity Rs: 30900.00
SECTION: GATE / HOIST & ALLIED WORKS. YEAR : 2010-11 ITEM No: 23
ITEM: Design, fabrication, supply, erection and commissioning of embedded parts consisting of sill
beam, wall plates, first stage anchors, anchor girders, anchor bars, trunnion supports etc., with
all accessories for outflow regulating automatic gates for barrage/ escape including cost of
all materials, labour, machinery, cutting, aligning, anchoring, welding, finishing, cleaning,applying
one coat of zinc rich epoxy primer and four coats of cold applied coal tar epoxy paint etc.,
complete as per specifications and approved drawings with all leads and lifts.
DATA:Embedded parts for automatic outflow regulating gate consist of sill beam / wall plates / anchor /
girders / anchor bars trunnion supports etc., with all accessories. The weight of embedded parts
for automatic gate will be generally about 35 to 40 percent of weight of gate leaf with fulcrum
assembly.
Consider embedded parts for automatic outflow regulating gate for barrage opening of size
8.0 m x 3.5 m.
Size of gate : 8.00 m x 3.50 m Head of water : 3.50 m
Weight of automatic outflow regulating gate with fulcrum assembly in tonne for the opening
based on empirical formula = 0.1325 x ( L2 x H x h )
0.673
Consider Weight of embedded parts in tonne @ av. 55 % of weight of gate :
= 0.375 x 0.1325 x ( L 2 x H x h ) 0.673
Where ( L ) is length and ( H ) is height and ( h ) is head of water in metres.
= 0.049 x ( 8 x 8 x 3.5 x 3.3 )0.673
: 4.177
The weight computed as above based on empirical formula is further checked by computing the
actual weight as per fabrication drawings of embedded parts for barrage outflow regulating radial
gate of same size furnished by the designer.
Actual weight of embedded parts : 3.910 tonnes
Consider actual weight for data rate analysis.
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GATE / HOIST AND ALLIED WORKS
Consider details of Material / Gas cutting / Welding based on fabrication drawings of embedded
parts for automatic outflow regulating gate as provided by the designer. ( for details refer
Item : 23 of Annexure-2 ).
1. Requirement of materials:
a. Structural steel conforming ti IS : 2062 :
Total weight of structural steel excluding wastage : 3800 kg
Weight of Angles / Channels / Beams @ 20 % : 760 kg
Weight of Plates / Flats @ 80 % : 3040 kg
Angles / beams / channels / bars with 2.5 % wastage ( 760x1.025 ) : 779 kg
Plates / flats with 2.5 % wastage ( 3040 x 1.025 ) : 3116 kg
b. Alloy steel conforming to IS : 1570 :
Stainless steel plates / flats AISI 410 ( 49 x 1.025 ) say: 50.00 kg
Stainless steel plates / flats AISI 304L ( 62 x 1.025 ) say: 64.00 kg
c. Bolt / Nut / Washer conforming to IS : 1363 :
MS bolts and nuts with 2.5 % wastage ( 129 x 1.025 ) : 132 kgd. Welding electrodes ( General purpose / Low hydrogen / Stainless steel ) :
GP / LH electrodes as per data sheet ( Item:23 Annexure-2 ) : 133 Nos
Add for variations / wastage / misc welding @ 10 % ( 133 x 0.1 ) : 14 Nos
Total requirement of GP / LH electrodes : 147 Nos
for stitch welding GP electrodes @t 10 % of total ( 147 x 0.10 ) : 15 Nos
for run welding LH electrodes @ 90 % of total ( 147 x 0.90 ) : 132 Nos
Stainless steel electrodes as per data sheet ( Item:23 Annexure-2 ) : 987 Nos
Add for variations / wastage @ 5 % ( 987 x 0.05 ) : 49 Nos
Total requirement of Stainless steel ( SS ) electrodes : 1036 Nos
for stitch weld SS electrodes @t 10 % of total ( 1036 x 0.10 ) : 104 Nos
for run weld SS electrodes @t 90 % of total ( 1036 x 0.90 ) : 932 Nos
2. Cutting :
Length of cutting assuming cutting for 2 sides as per data sheet : 168.00 Rm
Add for variations ( cutting more than 2 sides / odd shape etc ) at 10 % : 17.00 Rm
Total : 185.00 Rm
For cutting structural steel sections to required sizes plate shearing machine and gas cutting is
assumed.
Length of steel to be cut by using plate shearing machine : 30 m
Length of steel to be cut by using gas manually : 40 m
Length of steel to be cut by gas using pug cutting machine : 115 m
Time for cutting by shearing machine @ ( av ) 10 m cutting / hour : 3 hours
Time for gas cutting manually at ( av ) 2 m cutting / hour : 20 hours
Time for gas cutting by pug cutting machine at ( av ) 3 m cutting / hour : 38 hours
Acetelyne gas @ 0.6 cum / hour ( 20 + 38 ) x 0.60 : 35 cum
Oxygen gas @ 1.8 cum / hour ( 20 + 38 ) x 1.80 : 105 cum
Use of gas cutting torch with 50 min / hr working ( 20 x 60 / 50 ) : 23 hours
Use of pug cutting machine with 50 min / hr working ( 38 x 60 / 50 ) : 45 hours 3. Welding :
For stich welding @ 2 hrs usage / shift & @ 15 electrodes / hr
( 15 + 104 ) x 8 / 15 / 2 : 32 hours
For run welding @ 6 hrs usage / shift & @ 15 electrodes / hr
( 932 + 132 ) x 8 / 15 / 6 : 95 hours
Total : 127 hours
Deploy welding transformer for 127 hours.
Fuel / Energy charges @ 25 % hrs for stitch welding & @ 75 % hrs for run welding.
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( 32 x 0.25 + 95 x 0.75 ) : 80 hours
4. Planing SS plates for seal seats :
For surface finishing of SS plates for seal tracks planing machine is considered.
Length of SS plate for surface finishing by planing machine : 47 Rm
Length of planing at a time for 4 m stroke planing machine : 3 Rm
Time for planing 3 m length section with 50 min / hour working : 8 hours
Time for planing 47 m SS plates ( 47 x 8 / 3 ) : 126 hours
5. Surface cleaning and painting :
Painting area for embedded parts at 10 sqm / tonne ( 3.9 x 10 ) : 40 sqm
1 coat of zinc rich epoxy primer 40 micron dry film each coat.
Quantity of primer paint for 40 sqm @ 9 sqm / ltr / coat : 5 ltr
4 coats of coal tar epoxy paint 100 micron dry film each coat.
Quantity of coal tar epoxy paint for 40 sqm @ 6 sqm / ltr / coat : 27 ltr
As surface cleaning by sand blasting is hazardous, it is proposed to adopt chemical treatment
to remove grease, rust, scaling etc., and to form phasphate coating to prevent further rusting
before applying primer painting.Quantity of rust cleaner / inhibitor for 40 sqm @ 8 sqm / ltr : 5 ltr
6. Requirement of other machinery :
For drilling holes for anchor bolts 16 hours use of drilling machine considered.
For finishing weld joints / edges 12 hours use of grinding machine considered.
For handling of parts during fabrication and erection use of 8 t mobile crane for 18 hours and
stationery derric crane for 56 hours considered.
7. Requirement of work force :
Work component Foreman Helper /
Painter Cl-II
Cutting sections 68 hours 4 8 8 24
Drilling holes for anchors / supports --- 2 --- 4
Fabricating by stitch welding 32 hours 4 8 --- 24
Run welding 95 hours 6 --- 12 12
Erection of Anchor girders / anchor bars 2 4 --- 12
Erection of first stage anchors 1 2 --- 4
Erection of Sill beam / Wall plates 2 4 --- 12
Cleaning surface 40 sqm @ 15 sqm/day --- --- --- 3
Painting ( 5 x 40 ) sqm @ 15 sqm / day 2 --- --- 15
Finishing / Checking 1 2 --- 2
Total : 22 30 20 112
Note : a. It is assumed that all stitch welding will be done by fabricator. Hence, no separate provision
considered for welder for stitch welding.
b. Workforce for painting 1 coat primer and 4 coats finishing paint consists of 13 Painters Cl-II
at 15 sqm / day and 2 helpers to assist painters.
For surface finishing of stainless steel plates for seal seats planing machine is considered.
8. Excise duty on supply :Excise duty is applicable on supply of fabricated parts. The cost of materials is inclusive of all
taxes/ duties. Therefore, for purpose of rate analysis 75 percent of total cost excluding the cost
of materials ( assuming 25 % erection cost ) is considered for assessing excise duty.
9. Use rate of materials :
Cost of welding set @ Rs: 4500.00 / Each Rs: 4500.00
Life of welding set : 1000 hours
Use rate of welding set per hour ( cost / life ) Rs: 4.50
Cost of gas cutting set @ Rs: 1500.00 / Each Rs: 1500.00
Fabricator / Welder
Erector /
Marker / Gas cutter /
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Life of gas cutting set : 600 hours
Use rate of gas cutting set per hr ( cost / life ) Rs: 2.50
RATE ANALYSIS UNIT : 3.910 tonne
A. MATERIALS:
Sl No Unit Amount
in Rs.
1 Structural steel
Angles / beams / channels / bars kg 779.00 37.95 29563.05
Plates / flats kg 3116.00 40.00 124640.00
Contd
A. MATERIALS ( Contd ) :
Sl No Unit Amount
in Rs.
Contd 2 Stainless steel plates / flats AISI 410 kg 50.00 120.00 6000.00
Stainless steel plates / flats AISI 304L kg 64.00 240.00 15360.00
3 MS bolts and nuts kg 132.00 55.00 7260.00
4 Oxygen gas cum 105.00 48.00 5040.00
5 Acetyline gas cum 35.00 258.00 9030.00
6 Welding electrodes ( general purpose ) Nos 15.00 6.00 90.00
7 Welding electrodes ( low hydrogen ) Nos 132.00 12.00 1584.00
8 Welding electrodes ( stainless steel ) Nos 1036.00 43.00 44548.00
9 Zinc rich epoxy primer ltr 5.00 594.00 2970.00
10 Coal tar epoxy paint ltr 27.00 208.00 5616.00
11 Rust cleaner / inhibitor ltr 5.00 240.00 1200.00
12 Use rate welding holder set Hour 127.00 4.50 571.50
13 Use rate gas cutting torch set Hour 23.00 2.50 57.50
14 Wire brush Nos 3.00 30.00 90.00
15 Sundries LS 70.00 30.00 2100.00
Total Rs: 255720.05
Add for small Tools and Plants @ 1% Rs: 2557.20
Add for Contractor's Profit @ 10% Rs: 25572.01
Add for Contractor's Overheads @ 5% Rs: 12786.00
Total cost of Materials : Rs: 296635.26
B. MACHINERY:
Sl No Unit Amount
in Rs.
1 Welding transformer Hour 127.00 12.00 1524.00
Fuel / Energy charges Hour 80.00 60.00 4800.00
2 Plate shearing machine Hour 3.00 62.00 186.00Fuel / Energy charges Hour 3.00 100.00 300.00
3 Pug cutting machine Hour 45.00 16.00 720.00
Fuel / Energy charges Hour 45.00 3.00 135.00
4 Planing machine Hour 126.00 88.00 11088.00
Fuel / Energy charges Hour 126.00 75.00 9450.00
5 Mobile crane 8 t Hour 18.00 362.00 6516.00
Fuel / Energy charges Hour 18.00 495.00 8910.00
6 Stationery derric crane Hour 56.00 66.00 3696.00
Rate
in Rs.
Perticulars Quantity Rate
QuantityDescription
Perticulars Quantity
in Rs.
Rate
in Rs.
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Fuel / Energy charges Hour 56.00 9.00 504.00
7 Grinding machine Hour 16.00 18.00 288.00
Fuel / Energy charges Hour 16.00 25.00 400.00
8 Drilling machines Hour 12.00 18.00 216.00
Fuel / Energy charges Hour 12.00 25.00 300.00
9 Sundries LS 70.00 30.00 2100.00
Total Rs: 51133.00
Add for small Tools and Plants @ 1% Rs: 511.33
Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 2689.90
Add for Contractor's Overheads @ 5% Rs: 2556.65
Total hire charges of Machinery : Rs: 56890.88
C. LABOUR:
Sl No Unit Amount
in Rs.
1 Crew for Mobile crane Hour 18.00 75.70 1362.60
2 Crew for plate shearing machine Hour 3.00 45.90 137.703 Crew for Planing machine Hour 127.00 73.40 9321.80
4 Crew for Drilling machine Hour 12.00 59.50 714.00
5 Crew for Grinding machine Hour 16.00 59.50 952.00
6 Foreman Day 22.00 177.00 3894.00
7 Marker / Fabricator / Erector Day 30.00 157.50 4725.00
8 Gas cutter Day 8.00 157.50 1260.00
9 Welder ( General ) Day 10.00 157.50 1575.00
10 Welder ( X - ray ) Day 2.00 173.25 346.50
11 Helper fabrication / erection Day 94.00 141.50 13301.00
12 Helper for cleaning / painting Day 5.00 141.50 707.50
13 Painter Cl - II Day 13.00 141.50 1839.50
14 Electrician Day 2.00 143.00 286.00
Total Rs: 40422.60
Add for small Tools and Plants @ 1% Rs: 404.23
Add for Contractor's Profit @ 10% Rs: 4042.26
Add for hidden cost on Labour @ 15% Rs: 6063.39
Add for additional hidden cost on labour @ 15% Rs: 6063.39
Add for Contractor's Overheads @ 5% Rs: 2021.13
Total cost of Labour : Rs: 59017.00
ABSTRACT:
A. Cost of Materials Rs: 296635.26
B. Hire charges of Machinery Rs: 56890.88
C. Cost of Labour Rs: 59017.00
TOTAL Rs: 412543.13
Add for excise duty on 75 percent cost of
Machinery / Labour components @ 8.24% Rs: 7163.11 Add for insurance charges @ 1.00% Rs: 4125.43
Add for patent royalty charges @ 4.40% Rs: 18151.90
Add for designs and drawings @ 2.50% Rs: 10313.58
Add for zigs / supports / winches / chain-pulley @ 2.50% Rs: 10313.58
Add for power supply arrangements @ 2.00% Rs: 8250.86
Add for enabling works @ 1.40% Rs: 5775.60
Total Rs: 476637.19
Add for 2 rehandling leads for 1 km including loading and unloading :
in Rs.
Description Quantity Rate
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Fabricated parts 2 x 3.910 tonnes @ Rs: 129.10 / tonne Rs: 1009.56
Add for transportation upto work site @ 3.00% Rs: 14299.12
Total cost for 3.910 tonne Rs: 491945.87
Rate per tonne Rs: 125800.00
Rate approved per tonne Rs: 125800.00
SECTION: GATE / HOIST & ALLIED WORKS. YEAR : 2010-11 ITEM No: 24
ITEM: Design, fabrication, supply, erection, testing and commissioning of automatic outflow regulating
gate and fulcrum assembly consisting of skin plate, stiffeners, horizontal girders, trunnion
assemblies, gate bracket, base plate, rolling surface assembly, link brackets, link assembly,
rubber seals, seal clamps etc., with all accessories for barrage including cost of all materials,
machinery, labour, cutting, aligning, anchoring, welding, finishing, cleaning, applying one coat of
zinc rich epoxy primer and three coats of cold applied coal tar epoxy paint, seal fixing etc.,
complete as per specifications and approved drawings with all leads and lifts.
DATA: Automatic outflow regulating gate and fulcrum assembly consisting of skin plate, stiffeners,
horizontal girders, trunnion assemblies, gate bracket, base plate, rolling surface assembly, link ,
brackets, link assembly rubber seals, seal clamps etc., with all accessories.
Consider automatic outflow regulating gate for barrage opening of size 8 m x 3.5 m for analysis.
Size of gate : 8.00 m x 3.50 m Head of water : 3.30 m
Weight of automatic gate leaf in tonnes based on empirical formula :
= 0.1325 x ( L2 x H x h )
0.673
Where ( L ) is length and ( H ) is height and ( h ) is head of water in metres.
= 0.1325 x ( 8 x 8 x 3.5 x 3.3 )0.673
: 11.295
The weight computed as above based on empirical formula is further checked by computing the
actual weight as per fabrication drawings of automatic outflow regulating gate of same size
furnished by the designer for one of the gate.
Actual weight of radial gate leaf as per data in Item :24 of Annexure-2 : 11.270 tonnesConsider actual weight for data rate analysis.
Consider details of Material / Gas cutting / Welding based on fabrication drawings of canal
regulator radial gate provided for one of the canal regulator for rate analysis ( for details refer
Item : 24 of Annexure-2 ).
1. Requirement of materials:
a. Structural steel :
Angles / beams / channels / bars with 2.5 % wastage ( 3122x1.025 ) : 3200 kg
Plates / flats with 2.5 % wastage ( 7561x1.025 ) : 7750 kg
b. Alloy steel components :
Pins / Axles : 74 kg
Stainless plate / flats AISI 410 ( 49x1.025 ) : 50 kg
c. Cast steel components :
Trunnion hub / Guide roller : 443 kg
d. Alluminium / Bronze alloy components :Trunnion / Guide roller bush : 33 kg
e. Bolts / Nuts / Washers :
Stainless steel bolts /nuts /washers with 2.5 % wastage ( 31 x 1.025 ) : 32 kg
MS bolts / nuts / washers with 2.5 % wastage ( 23.5x1.025 ) : 24 kg
f. Rubber seal :
Bottom seal ( flat type ) ( 8 x 1.025 ) : 8.5 Rm
Side seals ( Z - type ) (2 x 4 x 1.025 ) : 8.5 Rm
g. Welding electrodes ( Ordinary / Low hydrogen ) :
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GP / LH electrodes as per data sheet ( Item:24 Annexure-2 ) : 6125 Nos
Add for variations / wastage / misc welding @ 10 % ( 6125 x 0.1 ) : 613 Nos
Total requirement of GP / LH electrodes : 6738 Nos
for stitch weld GP electrodes @t 10 % of total (6738 x 0.10 ) : 674 Nos
for run welding LH electrodes @ 90 % of total (6738 x 0.90 ) : 6064 Nos
h. Welding electrodes ( Stainless steel ) :
SS electrodes as per data sheet ( Item:24 Annexure-2 ) : 150 Nos
Add for variations / wastage / misc welding @ 10 % ( 6900 x 0.1 ) : 15 Nos
Total requirement of SS electrodes : 165 Nos
for stitch weld SS electrodes @t 10 % of total (165 x 0.10 ) : 15 Nos
for run welding SS electrodes @ 90 % of total (165 x 0.90 ) : 160 Nos
2. Cutting :
Total length of cutting assuming cutting for 2 sides : 195 Rm
Add for variations ( cutting more than 2 sides / odd shape etc ) at 10 % : 20 Rm
Total : 215 Rm
For cutting structural steel sections to required sizes use of plate shearing machine and gascutting is assumed.
Length of steel to be cut by using plate shearing machine 40 m
Length of steel to be cut by using gas manually : 62 m
Length of steel to be cut by gas using pug cutting machine : 113 m
Time for cutting by plate shearing machine at ( av ) 10 m cutting / hour : 4 hours
Time for gas cutting manually at ( av ) 2 m cutting / hour : 31 hours
Time for gas cutting by pug cutting machine at ( av ) 3 m cutting / hour : 38 hours
Acetelyne gas @ 0.6 cum / hour ( 31 + 38 ) x 0.60 : 42 cum
Oxygen gas @ 1.8 cum / hour ( 31 + 38 ) x 1.80 : 126 cum
Use of gas cutting torch with 50 min / hr working ( 31 x 60 / 50 ) : 37 hours
Use of pug cutting machine with 50 min / hr working ( 38 x 60 / 50 ) : 46 hours
4. Welding :
Length of welding : 196 Rm
For stich welding @ 2 hrs usage / shift & @ 15 electrodes / hr
( 674 + 15 ) x 8 / ( 15 x 2 ) : 184 hours
For run welding @ 6 hrs usage / shift & @ 15 electrodes / hr
( 6064 + 160 ) x 8 / ( 15 x 6 ) : 553 hours
Total : 737 hours
Deploy welding transformer for 737 hours.
Fuel / Energy charges @ 25 % hrs for stitch welding & @ 75 % hrs for run welding.
( 184 x 0.25 + 553 x 0.75 ) : 461 hours
5. Planing SS plates for seal seats :
For surface finishing of SS plates planing machine is considered.
Length of SS plate for surface finishing by planing machine : 3 Rm
Length of planing at a time for 4 m stroke planing machine : 3 Rm
Time for planing 3 m length section with 50 min / hour working : 8 hours
Time for planing 3 m SS plates ( 3 x 8 / 3 ) : 8 hours 6. Surface cleaning and painting :
Painting area for gate at 20 sqm / tonne ( 11.27 x 20 ) : 225 sqm
1 coat of zinc rich epoxy primer 40 micron dry film each coat.
Quantity of primer paint for 225 sqm @ 9 sqm / ltr / coat : 25 ltr
3 coats of coal tar epoxy paint 100 micron dry film each coat.
Quantity of coal tar epoxy paint for 225 sqm @ 6 sqm / ltr / coat : 112 ltr
As surface cleaning by sand blasting is hazardous, it is proposed to adopt chemical treatment
to remove grease, rust, scaling etc., and to form phasphate coating to prevent further rusting
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before applying primer painting.
Quantity of rust cleaner / inhibitor for 225 sqm @ 8 sqm / ltr : 28 ltr
7. Requirement of other machinery :
For drilling holes in skin plate and seal clamps for seal fixing 16 hours use of drilling machine
considered.
For grinding and finishing weld joints in skin plate and other locations 16 hours use of grinding
machine considered.
For handling of parts during fabrication and erection use of 8 t mobile crane for 16 hours and
stationery derric crane 50 hours considered.
8. Requirement of work force :
Work component Foreman Helper /
Painter Cl-II
Cutting sections 87 hours 2 4 9 18
Drilling holes for seal fixing 1 2 --- 2Erection of trunnions/H -girders /stiffeners 4 4 --- 8
Fabricating and stitch welding 184 hours 11 23 --- 46
Run welding 553 hours 5 --- 69 69
Erection of links / other accessories 2 4 --- 8
Erection of fulcrum assembly 2 4 --- 8
Cleaning surface 225 sqm @ 15 sqm/day --- --- --- 15
Painting ( 4 x 225 ) sqm @ 15 sqm / day --- --- --- 66
Seal fixing 1 2 --- 2
Finishing / checking / cleaning 1 1 --- 1
Total : 29 44 78 243
Note : a. It is assumed that all stitch welding will be done by fabricator. Hence, no separate provision
considered for welder for stitch welding.
b. Workforce for painting 1 coat primer and 3 coats finishing paint consists of 60 Painters Cl-II
at 15 sqm / day and 6 helpers to assist painters.
9. Excise duty on supply :
Excise duty is applicable on supply of fabricated parts. The cost of materials is inclusive of all
taxes/ duties. Therefore, for purpose of rate analysis 75 percent of total cost excluding the cost
of materials ( assuming 25 % erection cost ) is considered for assessing excise duty.
10. Use rate of materials :
Cost of welding set @ Rs: 4500.00 / Each Rs: 4500.00
Life of welding set : 1000 hours
Use rate of welding set per hour ( cost / life ) Rs: 4.50
Cost of gas cutting set @ Rs: 1500.00 / Each Rs: 1500.00
Life of gas cutting set : 600 hours
Use rate of gas cutting set per hr ( cost / life ) Rs: 2.50
RATE ANALYSIS UNIT : 11.270 tonneA. MATERIALS:
Sl No Unit Amount
in Rs.
1 Structural steel :
Angles / beams / channels / bars kg 3200.00 37.95 121440.00
Plates / flats kg 7750.00 40.00 310000.00
2 Cast steel components :
Hub / Rollers kg 443.00 125.00 55375.00
in Rs.
Marker /
Fabricator /
Perticulars Quantity Rate
Welder
Erector /
Gas cutter /
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3 Alloy steel components :
Stainless steel plate kg 50.00 120.00 6000.00
Pins / Axles kg 74.00 215.00 15910.00
4 Alluminium / Bronze alloy components:
Bearings / Bush kg 33.00 635.00 20955.00
Contd
A. MATERIALS ( Contd ) :
Sl No Unit Amount
in Rs.
Contd
5 Bolt / Nut / Washer :
Stainless steel bolts / nuts / washers kg 32.00 150.00 4800.00
MS bolts / nuts / washers kg 24.00 55.00 1320.00
6 Rubber seals :
Bottom seal Rm 8.50 147.00 1249.50Side seals ( Z - type ) Rm 8.50 295.00 2507.50
8 Oxygen gas cum 126.00 48.00 6048.00
9 Acetyline gas cum 42.00 258.00 10836.00
10 Welding electrodes ( general purpose ) Nos 674.00 6.00 4044.00
11 Welding electrodes ( low hydrogen ) Nos 6064.00 12.00 72768.00
12 Welding electrodes ( stainless steel ) Nos 165.00 43.00 7095.00
13 Zinc rich epoxy primer ltr 25.00 594.00 14850.00
14 Coal tar epoxy paint ltr 112.00 208.00 23296.00
15 Rust cleaner / inhibitor ltr 28.00 240.00 6720.00
16 Use rate welding holder set Hour 737.00 4.50 3316.50
17 Use rate gas cutting torch set Hour 37.00 2.50 92.50
18 Wire brush Nos 5.00 30.00 150.00
19 Sundries LS 100.00 30.00 3000.00
Total Rs: 691773.00
Add for small Tools and Plants @ 1% Rs: 6917.73
Add for Contractor's Profit @ 10% Rs: 69177.30
Add for Contractor's Overheads @ 5% Rs: 34588.65
Total cost of Materials : Rs: 802456.68
B. MACHINERY:
Sl No Unit Amount
in Rs.
1 Welding transformer Hour 737.00 12.00 8844.00
Fuel / Energy charges Hour 461.00 60.00 27660.00
2 Plate shearing machine Hour 4.00 62.00 248.00
Fuel / Energy charges Hour 4.00 100.00 400.00
3 Pug cutting machine Hour 46.00 16.00 736.00Fuel / Energy charges Hour 46.00 3.00 138.00
5 Planing machine Hour 8.00 88.00 704.00
Fuel / Energy charges Hour 8.00 75.00 600.00
7 Mobile crane ( revolving ) 8 t Hour 16.00 362.00 5792.00
Fuel / Energy charges Hour 16.00 495.00 7920.00
8 Stationery derric crane Hour 50.00 66.00 3300.00
Fuel / Energy charges Hour 50.00 9.00 450.00
9 Grinding machine Hour 32.00 18.00 576.00
Rate
Description
Perticulars Quantity
in Rs.
Quantity Rate
in Rs.
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Fuel / Energy charges Hour 32.00 25.00 800.00
10 Drilling machines Hour 16.00 18.00 288.00
Fuel / Energy charges Hour 16.00 25.00 400.00
11 Sundries LS 100.00 30.00 3000.00
Total Rs: 61856.00
Contd
B. MACHINERY ( Contd ) :
Sl No Unit Amount
in Rs.
Contd
Add for small Tools and Plants @ 1% Rs: 618.56
Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 4136.80
Add for Contractor's Overheads @ 5% Rs: 3092.80
Total hire charges of Machinery : Rs: 69704.16
C. LABOUR: Sl No Unit Amount
in Rs.
1 Crew for Mobile crane 8 t Hour 16.00 75.70 1211.20
2 Crew for plate shearing machine Hour 4.00 45.90 183.60
3 Crew for planing machine Hour 8.00 73.40 587.20
4 Crew for Drilling machine Hour 16.00 59.50 952.00
5 Crew for Grinding machine Hour 32.00 59.50 1904.00
6 Foreman Day 29.00 177.00 5133.00
7 Marker / Fabricator / Erector Day 44.00 157.50 6930.00
8 Gas cutter Day 9.00 157.50 1417.50
9 Welder ( General ) Day 62.00 157.50 9765.00
10 Welder ( X - ray ) Day 7.00 173.25 1212.75
11 Khalasi Day 34.00 145.50 4947.00
12 Helper fabrication / erection Day 162.00 141.50 22923.00
13 Helper for cleaning / painting Day 21.00 141.50 2971.50
14 Painter Cl - II Day 60.00 141.50 8490.00
15 Electrician Day 3.00 143.00 429.00
Total Rs: 69056.75
Add for small Tools and Plants @ 1% Rs: 690.57
Add for Contractor's Profit @ 10% Rs: 6905.68
Add for hidden cost on Labour @ 15% Rs: 10358.51
Add for additional hidden cost on labour @ 15% Rs: 10358.51
Add for Contractor's Overheads @ 5% Rs: 3452.84
Total cost of Labour : Rs: 100822.86
ABSTRACT:
A. Cost of Materials Rs: 802456.68B. Hire charges of Machinery Rs: 69704.16
C. Cost of Labour Rs: 100822.86
TOTAL Rs: 972983.70
Add for excise duty on 75 percent cost of
Machinery / Labour components @ 8.24% Rs: 10538.57
Add for insurance charges @ 1.00% Rs: 9729.84
Add for Patent royalty charges @ 4.40% Rs: 42811.28
Add for designs and drawings @ 2.50% Rs: 24324.59
Perticulars
Description
in Rs.
Quantity
in Rs.
Rate
Quantity Rate
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Add for zigs / supports / winches / chain-pulley @ 2.50% Rs: 24324.59
Add for power supply arrangements @ 2.00% Rs: 19459.67
Add for enabling works @ 1.40% Rs: 13621.77
Total Rs: 1117794.01
Add for 2 rehandling leads for 1 km including loading and unloading :
Fabricated parts 2x11.27 tonnes @ Rs: 129.10 / tonne Rs: 2909.91
Add for transportation upto work site @ 3.00% Rs: 33533.82
Total cost for 11.270 tonne Rs: 1154237.75
Rate per tonne Rs: 102400.00
Rate approved per tonne Rs: 102400.00
SECTION: GATE / HOIST & ALLIED WORKS. YEAR : 2010-11 ITEM No: 25
ITEM: Design, fabrication, supply, erection, testing and commissioning of hoisting cum damping
system consisting of low level horizontal lever link, low level long actuating lever, high levelvertical lever link, high level short actuating lever, high level hoisting bracket, axle for lever
system, friction shoes, support box for shoes, track assembly, ratchet pawl, support structure,
bracket plate etc., with all accessories for outflow regulating automatic gate including cost of all
materials, machinery, labour, cutting, aligning, anchoring, welding, finishing, cleaning, applying
one coat of zinc rich epoxy primer and three coats of cold applied coal tar epoxy paint, seal
fixing etc., complete as per specifications and approved drawings with all leads and lifts.
DATA:Hoisting cum damping system for automatic outflow regulating gate consists of low level
horizontal lever link, low level long actuating lever, high level vertical lever link, high level short
actuating lever, high level hoisting bracket, axles for lever system, friction shoes, track assembly,
support box for shoes, ratchet pawl, support structure, bracket plate etc.
Consider hoisting cum damping system for automatic outflow regulating gate of size 8 x 3.50 m
for analysis.
Weight of the hoisting cum damping system will be about 50 to 55 percent of the weight of the
automatic outflow regulating gate.
Consider automatic outflow regulating gate for barrage opening of size 8 m x 3.5 m for analysis.
Size of gate : 8.00 m x 3.50 m Head of water : 3.30 m
Weight of automatic gate leaf in tonnes based on empirical formula :
= 0.1325 x ( L2 x H x h )
0.673
Where ( L ) is length and ( H ) is height and ( h ) is head of water in metres.
= 0.1325 x ( 8 x 8 x 3.5 x 3.3 )0.673
: 11.295
Weight of hoisting cum damping system = 0.525 x 11.295 : 5.93 tonnes
The weight computed as above based on empirical formula is further checked by computing the
actual weight as per fabrication drawings.
Actual weight of radial gate leaf as per data in Item :25 of Annexure-2 : 5.81 tonnes
Consider actual weight for data rate analysis.
Consider details of Material / Gas cutting / Welding based on fabrication drawings of hoistinglcum damping system as furnished by the designer for one of the automatic outflow regulating
gate of size 8.0 x 3.5 m for rate analysis ( for details referItem : 25 of Annexure-2 ).
1. Requirement of materials:
a. Structural steel :
Angles / beams / channels / bars with 2.5 % wastage ( 1483x1.025 ) : 1520 kg
Plates / flats with 2.5 % wastage ( 3622x1.025 ) : 3712 kg
b. Alloy steel components :
Stainless steel plates / flats : 435 kg