How do you calculate qty for form work like props shuttering sheet and acro sp

How do you calculate qty for form work like props shuttering
sheet and acro span for residential block ?
for Example: 10 sq mt what is the material and qty require to
do form work.

Question Posted / rohn

2 Answers
31701 Views
L&T, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

How do you calculate qty for form work like props shuttering sheet and acro span for residential b..

Answer / narayani upadhyay

I am not sure too much about it, but it gives an idea for calculating the props , number of sheets and acrospane in a building form work.
size of ms sheet (steel sheet)= 2' * 3'=6 6sqft
props should be between 500 mm to 600 mm to each-other.
Acrospane are uses from one end to other end for supporting the ms sheet on slab.
lets assume the size of 2 BHK = 1000 sqft
=Number of sheet required =1000/6=166.67 approx=170
Add 10 to 15 % wastage=170*1.10=187
=If depth of slab less than 175 mm = 4 sheet contain 1 acrospane.
= If depth of slab more than 175 mm=5 sheet contain 1 acrospan
= lets assume depth of slab= 125 mm
= Number of acrospane= 187/4=46.75 approx=50
=number of props requred= it depend on the size of beam and length of beam around the slab.Total length of beam in running meter around the slab(incuding sunken,balcony ,ots and staircase)=70 m
=props should be between 0.5 m to 0.6 m.
=number of Props for BEAM length=70/0.6=116=approx 120
=Number of props for slab=50*2=100
= Total number of PROPS=320

Is This Answer Correct ?

26 Yes

7 No

How do you calculate qty for form work like props shuttering sheet and acro span for residential b..

Answer / thamaraikani

simple constructin material calculation:
sheet,span and props
assuming :1000sqm builtup area
step1:sheet
1000/0.9*0.6=1851nos
step2:span
note:(slab thickness less than 175=4sheet)
(slab thickness more than175=5sheet)
span=1851/5=370nos
step3:props
note:(slab thickness less than 175=4sheet/2)slab thickness less than 175=5sheet/2)
props=370*2.5=925nos

Is This Answer Correct ?

6 Yes

3 No

Post New Answer

More Civil Engineering Interview Questions

what is work of planning deptt. in any construction compny (in road project)

0 Answers bscpl,

quantity of material needed for rubble stone masonry for 1:4 and 1:6

0 Answers

how calculate cutting length of stell in slab and column? give brif discussion with formula?

3 Answers ATS, Gammon, Pegasus,

i need a labour rates of all civil works ? eg) brick,pcc, smm, inner plaster,outer plaster,centering, bar-bending. and also need all material rates latest?

1 Answers

how to calculate cost for MS plate shuttering (show calculation/assumptions)

2 Answers Gammon,

What is the deffrence multistory bulding &highrise bulding

1 Answers BLK,

any book or article on pumped concrete.

0 Answers

what is porosity??

3 Answers

how many types of foundation

6 Answers Synergy,

how to find the cement and sand quantity for wall plastering