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8/10/2019 Lift construction
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Learning RCC Frame Structure Construction
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10UC 1312 Jinal Mistry
UC 5112 Harshit Soni
Activitity : Formwork, Reinforcement, Concreting of lift.
FormworkReinforcement Concreting
bar bending schedule for lift
steel as on site
descriptionlength
(inch)
numb
er of
bars
total
length
(inch)
total length
(m)
diamete
r (mm)unit wt (kg/m) total wt (kg)
vertical steel in edge columns 192 40 7680 195.072 20 2.4691358 481.659259
vertical steel in 2 shorter sides 192 48 9216 234.0864 12 0.88888889 208.0768
vertical steel in the longer side 192 30 5760 146.304 8 0.39506173 57.7991111
horizontal steel in the longer side 93 32 2976 75.5904 8 0.39506173 29.8628741
horizontal steel in the shorter sides 86 64 5504 139.8016 8 0.39506173 55.2302617
intermediate stirrup 40.4 64 2585.6 65.67424 8 0.39506173 25.9453788
link 12 192 2304 58.5216 8 0.39506173 23.1196444
edge stirrups 47.25 128 6048 153.6192 8 0.39506173 60.6890667
8 mm bars at each overlap 24 118 2832 71.9328 8 0.39506173 28.4178963
total steel 970.800292
number of vertical bars 118
cost of welding (40 a piece) 4720
Rate analysis for 970.8kg
item cost (Rs.)
material 50262.2
labour 3112.5
TEP (5%) 2668.735
Scaffolding (1%) 533.747
water and Electricity (1%) 533.747
Profit and Overhead (15%) 8566.639
total cost 65677.57
cost per kg 67.65304
Material Quantity
Material used quantity
cost per
unit (Rs.) Cost (Rs.)
Steel (kg) 970.8 46 44656.8
binding wire (kg) 9.708 50 485.4
Welding (per bar) 128 40 5120
total cost 50262.2
Theoretical quantity of steel required = 1060.4319
Saving in steel = 89.6 kg = 8.45 % ie. Rs . 4200
Material
Quant
ity
Cost
per
Unit
(Rs.)
Cost
(Rs.)
Ferma (31" x 8' ) 12 2500 30000
Ferma (9" x 8' ) 2 720 1440
Right Angle Ferma
(small) 4 2200 8800
Right Angle Ferma
(large) 4 4400 17600
Demoulding Oil 5 litre 60 300
Nut and Bolt 264 1 200
clamps 11 100 1100
Total Cost (Rs.) 59440
repetitions = 26 2784.615
Total area of formwork in contact with
concrete = 357.33 sq. ft.
rate analysis
for 357.33 sq.ft. (Rs.)
Material cost 2785
Labour cost 887.5
TEP cost (1%) 36.725
Scaffolding cost (2%) 73.45
Water and electricity cost (1%) 36.725
Profit and overheads (15%) 572.91
Total 4392.31
Cost per unit (Rs. per sq. ft.) 12.43118
Cost per unit (Rs. per sq. metre) 133.8081
Labour productivity :
Skilled = .75 manday, 476.44 sq. ft. per manday
Unskilled : 1.75 manday, 204.1886 sq. ft. per manday
0.00%
5.00%
10.00%
15.00%
20.00%
re in forcement formwork concrete
% wastage
% wastage
24.28
4.75
70.98
concrete
formwork
reinforcement
Theoretical Quantity of
concrete required :z
description unit number l b h total
shorter sides inch 2 92 9 96 158976
longer sides in ch 1 90 6 96 51840
total qunatity
inch
cube 210816
total quantity cft 122
total qunantity cmt 3.455112
wastage = (100 -
(100*122)/143) %
14.6853
1469 14.70%
material
per
batch
quantit
y (cft)
quantit
y (kg)
per
batch
total
quantity
(kg)
cost per
unit (Rs.) total cost
sand
3
tagara 2.25 90 1980 0.4 792
kapchi
6
tagara 4.5 180 3960 0.6 2376
cement 2 bags 2.5 100 2200 5.4 11880
water
4
bucket
s 30 litre 30 660 0 0
(22 batches were mixed, each yeilding 6 cft
mixed concrete from 9.25 unmixed concrete) ie
143 cft
There is no mix design, only grade is specified
by structural engineer as M30
total cost
(Rs.) of
material 15048
f to c ratio 2.896148
r to c ratio 0.035984
activity Rs.
concrete 22465
formwork 4393
reinforcement 65677.7
total cost 92535.7
rate analysis for 122 cft concrete
material 15048
labour 1812.5
mixer (Rs. 300 per hour) 1500
vibrator (Rs. 100 per hour) 500
tep (1% ) 168.605
scaffolding (2%) 337.21
water and electricity (1%) 168.605
profit and overhead (15%) 2930.238
total cost 22465.16
cost per cft (Rs.) 184.1406
cost per cmt (Rs.) 6502.006
Labour productivity :
Skilled = 1.25 manday, 97.6 cft per manday
Unskilled = 4.75 manday, 25.68 cft per mandayLabour productivity :
Skilled = 4 manday, 242.7 kg per manday
Unskilled : 1.25 manday, 776.64 kg per manday
Mix proportion on site = 1 : 0.75 : 1.5 , M30
Design Details : 8
people, weighing 65
kg each.
