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Staging Load Calculation

The document provides details of quantities of materials needed for formwork and staging of a concrete deck slab. It includes: 1. A calculation of the load carrying capacity of 40mm NB MS pipes to be used for staging, determining it to be 3.741 metric tons per pipe. 2. A summary of dead loads from formwork materials, rebar, concrete etc. 3. Estimation of live loads and friction loads during concreting. 4. A calculation of total safe load for the staging, determining 184 pipes would be required based on load calculations, though 770 pipes will actually be used with the arranged spacing.

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Ravi Rajan
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6K views12 pages

Staging Load Calculation

The document provides details of quantities of materials needed for formwork and staging of a concrete deck slab. It includes: 1. A calculation of the load carrying capacity of 40mm NB MS pipes to be used for staging, determining it to be 3.741 metric tons per pipe. 2. A summary of dead loads from formwork materials, rebar, concrete etc. 3. Estimation of live loads and friction loads during concreting. 4. A calculation of total safe load for the staging, determining 184 pipes would be required based on load calculations, though 770 pipes will actually be used with the arranged spacing.

Uploaded by

Ravi Rajan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Description of item as per Bottom Top

Item No. ( to ) Unit


Schedule of Quantities Level Level
iv)M30 grade
TG Deck Slab @9.25Mts level
Deck Slab ( 7.000 to 8.700 ) Cu.M
Less Opening ( 7.000 to 8.700 ) Cu.M
Less Opening ( 7.000 to 8.700 ) Cu.M
Less Opening ( 7.000 to 8.700 ) Cu.M
Less Opening ( 7.000 to 8.700 ) Cu.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Cu.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Cu.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Cu.M
Beam @ 9.0Mts ( 8.400 to 9.000 ) Cu.M
Charjja ( 8.400 to 8.700 ) Cu.M
Charjja ( 8.400 to 8.700 ) Cu.M
Pedestal ( 8.700 to 9.000 ) Cu.M
Pedestal ( 8.700 to 9.000 ) Cu.M
Pedestal ( 8.700 to 9.000 ) Cu.M
Pedestal ( 8.700 to 9.000 ) Cu.M
Pedestal ( 8.700 to 9.130 ) Cu.M
Pedestal ( 8.700 to 9.130 ) Cu.M
Pedestal ( 8.700 to 9.130 ) Cu.M
Pedestal ( 8.700 to 9.250 ) Cu.M
Pedestal ( 8.700 to 9.250 ) Cu.M
Pedestal ( 8.700 to 9.250 ) Cu.M
Pedestal ( 8.700 to 9.250 ) Cu.M
Pedestal ( 8.700 to 9.250 ) Cu.M
Pedestal ( 8.700 to 9.250 ) Cu.M

Total Quantity
Form Work
TG Deck Slab @9.25Mts level
Deck Slab ( 7.000 to 8.700 ) Sq.M
Sides ( 7.000 to 8.700 ) Sq.M
Less Opening ( 7.000 to 8.700 ) Sq.M
Sides ( 7.000 to 8.700 ) Sq.M
Less Opening ( 7.000 to 8.700 ) Sq.M
Sides ( 8.600 to 8.700 ) Sq.M
Less Opening ( 7.000 to 8.700 ) Sq.M
Sides ( 8.600 to 8.700 ) Sq.M
Less Opening ( 7.000 to 8.700 ) Sq.M
Sides ( 8.400 to 8.700 ) Sq.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Sq.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Sq.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Sq.M
Less 8.60Mts slab ( 8.600 to 8.700 ) Sq.M
Beam @ 9.0Mts ( 8.400 to 9.000 ) Sq.M
Charjja ( 8.400 to 8.700 ) Sq.M
Charjja ( 8.400 to 8.700 ) Sq.M
Pedestal ( 8.700 to 9.000 ) Sq.M
Pedestal ( 8.700 to 9.000 ) Sq.M
Pedestal ( 8.700 to 9.000 ) Sq.M
Pedestal ( 8.700 to 9.000 ) Sq.M
Pedestal ( 8.700 to 9.130 ) Sq.M
Pedestal ( 8.700 to 9.130 ) Sq.M
Pedestal ( 8.700 to 9.130 ) Sq.M
Pedestal ( 8.700 to 9.250 ) Sq.M
Pedestal ( 8.700 to 9.250 ) Sq.M
Pedestal ( 8.700 to 9.250 ) Sq.M
Pedestal ( 8.700 to 9.250 ) Sq.M
Pedestal ( 8.700 to 9.250 ) Sq.M
Pedestal ( 8.700 to 9.250 ) Sq.M

Total Quantity

1 Consideration of statging materials


considering 40NB C class MS pipe
C/s area of MS Pipe = (pi*(D^2-D^2))/4
Outer Dia-D = 4.9 Cm
Inner Dia-d = 4 Cm
C/s area of MS Pipe = 6.294 Sqcm

Moment of inertia Ij = (pi/64)*(D^4-d^4)


Moment of inertia Ij = 15.739 cm^4

Radius of gyration of the sacton Ri = (Ii/A)


= 1.581 Cm
spacing considered = 50 Cm c/c along longitudinal & transverse direction,

hence, K=L/Ri =
60 (L/r) = 1207
70 (L/r) = 1155 52 5.2
63.521(L/r) = 1188.691 Kg/Cm^2
allowable compressive stress as per table 2 of IS806-1968 = 1188.691 Kg/Cm^2

total load caring capacity of considered 40NB MS pipe = 7.482 MT


safe load caring capacity of 40NB MS pipe = 3.741 MT

A DEAD LOAD:
Size(14.35Mtsx8Mts)
Timber load
Total formwork Qty Sqm
Runner(4''x3'') for Slab Bottom Cu.M
Runner(2''x3''x5') for sides Cu.M
Total qty of Timber in Cu.M Cu.M
Timber Weight per Cu.M Kgs
Total Weight of Timber Kgs
Total Weight of Ply Kgs

Pipe 50MM Dia Rmt

Total weight of Dead load

C LIVE LOAD:
i Total RCC Quantity Kgs
ii Rebar Quantity Kgs

Kgs
Total weight of Live load
MT
D Friction Load
(Consider 10 Heads for concreting+Vibrator - 2 Nos)
Consider weight per head Avg. = 65 kg Kgs
Consider weight per Vibrator = 35 kg Kgs

Kgs
Total weight of Friction load
MT

Therefore Safe load = (Dead Loadx1.2 )+(Live loadx1.4)+ Friction Load


Therefore Safe load (Dead Loadx1.2)+
= 13.94
= 16.73
=

Total Load = MT
safe load caring capacity of 40NB MS Each pipe = MT
Total Pipe Requirement = 184

Based on design we need 184 nos. of 40NB MS pipe for total area
As per detail arrangement of staging pipe @ 500mm c/c on longitudinal & transverse direction 770 nos. is used

Hence the applied arrangment is safe to use


No Length Breadth Depth Quantity Remarks

1 14.350 8.000 1.700 195.160


-1 4.600 2.680 1.700 (20.958) 9.2
-1 1.968 3.700 1.700 (12.379) 3.936
-1 2.420 4.700 1.700 (19.336) 4.84
-1 0.120 1.700 1.700 (0.347) 0.24
-1 2.250 1.500 0.100 (0.337) 4.5
-1 0.990 0.550 0.100 (0.054) 1.98
-1 0.600 0.690 0.100 (0.041) 1.2
1 8.000 0.250 0.600 1.200
2 2.150 1.300 0.300 1.677
1 2.150 1.300 0.150 0.419
4 1.749 0.250 0.300 0.525
2 0.750 0.250 0.300 0.113
2 1.650 0.250 0.300 0.248
2 3.020 1.050 0.300 1.903
2 2.420 0.600 0.430 1.249
2 2.100 0.600 0.430 1.084
1 3.150 0.510 0.430 0.691
1 8.000 2.141 0.550 9.420
1 4.340 2.660 0.550 6.349
1 5.330 2.660 0.550 7.798
1 1.720 1.700 0.550 1.608
1 0.550 0.640 0.550 0.194
1 2.200 1.350 0.550 1.634

177.820

1 14.350 8.000 114.800


1 44.700 1.700 75.990
-1 4.600 2.680 (12.328)
1 14.560 1.700 24.752
-1 1.968 3.700 (7.282)
1 11.336 1.700 19.271
-1 2.420 4.700 (11.374)
1 14.240 1.700 24.208
-1 0.120 1.700 (0.204)
1 3.640 1.700 6.188
-1 0.990 0.100 (0.099)
-1 7.500 0.100 (0.750)
-1 3.080 0.100 (0.308)
-1 2.580 0.100 (0.258)
1 16.500 0.600 9.900
2 6.900 0.300 4.140
1 6.900 0.150 1.035
4 3.998 0.300 4.798
2 2.000 0.300 1.200
2 3.800 0.300 2.280
2 8.140 0.300 4.884
2 6.040 0.430 5.194
2 5.400 0.430 4.644
1 7.320 0.430 3.148
1 20.282 0.550 11.155
1 14.000 0.550 7.700
1 15.980 0.550 8.789
1 6.840 0.550 3.762
1 2.380 0.550 1.309
1 7.100 0.550 3.905

310.449

gitudinal & transverse direction,

17.35 11

320.00
58.000 11.000 0.075 0.100 4.785
300.000 2.440 0.075 0.050 2.745
7.53
1,068.00
8,042.04
108.000 25.000 2,700.000

69.000 12.200 3.800 3,198.840

13,940.880
13.941

177.87 2500 444,675.00


177.87 200 35,574.00

480,249.000
480.250

10 65 650.00
2 35 70.00

720.000
0.720
(Dead Loadx1.2)+ (liveloadx1.4)+ Friction Load
1.2 480.25 1.4 0.72
(+) 672.35 (+) 0.72
689.80

689.80
3.741
Nos
5.36 49.312
7.4 29.1264
9.4 45.496
3.4 0.816
3 13.5
1.1 2.178
1.38 1.656

142.0844
71.0422
9.25mts

7.00mts

500 c/c Spacing

500 c/c Spacing


1 Consideration of statging materials
considering 40NB C class MS pipe
C/s area of MS Pipe = (pi*(D^2-D^2))/4
Outer Dia-D = 4.8 Cm
Inner Dia-d = 4.2 Cm
C/s area of MS Pipe = 4.243 Sqcm

Moment of inertia Ij = (pi/64)*(D^4-d^4)


Moment of inertia Ij = 10.788 cm^4

Radius of gyration of the sacton Ri = (Ii/A)


= 1.595 Cm
spacing considered = 50 Cm c/c along longitudinal & transverse direction,

hence, K=L/Ri = 31.34796238


30 (L/r) = 1352
40 (L/r) = 1303 49 4.9
31.347(L/r) = 1345.4 Kg/Cm^2
allowable compressive stress as per table 2 of IS806-
1968 = 1345.4 Kg/Cm^2

total load caring capacity of considered 40NB MS pipe = 5.709 MT


safe load caring capacity of 40NB MS pipe = 2.8545 MT
A DEAD LOAD:
Size(14.35Mtsx8Mts) 17.35 11
Timber load
Total formwork Qty Sqm 320.00
Runner(4''x3'') for Slab Bottom Cu.M 58.000 11.000 0.075 0.100 4.785
Runner(2''x3''x5') for sides Cu.M 300.000 2.440 0.075 0.050 2.745
Total qty of Timber in Cu.M Cu.M 7.53
Timber Weight per Cu.M Kgs 1,068.00
Total Weight of Timber Kgs 8,042.04
Total Weight of Ply Kgs 108.000 25.000 2,700.000

Pipe 50MM Dia Rmt 69.000 12.200 3.800 3,198.840

Total weight of Dead load 13,940.880


13.941

C LIVE LOAD:
i Total RCC Quantity Kgs 177.87 2500 444,675.00
ii Rebar Quantity Kgs 177.87 200 35,574.00

Total weight of Live load Kgs 480,249.000


MT 480.250
D Friction Load
(Consider 10 Heads for concreting+Vibrator - 2 Nos)
Consider weight per head Avg. = 65 kg Kgs 10 65 650.00
Consider weight per Vibrator = 35 kg Kgs 2 35 70.00

Total weight of Friction load Kgs 720.000


MT 0.720

Therefore Safe load = (Dead Loadx1.2 )+(Live loadx1.4)+ Friction Load


Therefore Safe load (Dead Loadx1.2)+ (liveloadx1.4)+ Friction Load
= 13.94 1.2 480.25 1.4 0.72
= 16.73 (+) 672.35 (+) 0.72
= 689.80

Total Load = MT 689.80


safe load caring capacity of 40NB MS Each pipe = MT 2.8545
Total Pipe Requirement = 242 Nos

Based on design we need 242 nos. of 40NB MS pipe for total area
As per detail arrangement of staging pipe @ 500mm c/c on longitudinal & transverse direction (total460nos-less open area70nos)=390Nos. is used

Hence the applied arrangment is safe to use


500 c/c Spacing
500 c/c Spacing
500 c/c Spacing
500 c/c Spacing
500 c/c Spacing
9.25mts Slab Top Level

7.00mts Slab Bottom Level

500 c/c Spacing

500 c/c Spacing

500 c/c Spacing

500 c/c Spacing

500 c/c Spacing

500 c/c Spacing


500 c/c Spacing

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