how to replace 8mm bar with 10mm bar if the the 8mm bar is not available..???
Answers were Sorted based on User's Feedback
Answer / mustafa mohammed layeak
Area of 8mm dia bar = 50.28 sqmm .
Area of 10mm dia bar= 78.57 sqmm .
For example if you don't have 8mm dia bar available to use
in 1m strip of slab,then one can use 10mm dia bar with an
increased spacing relative to 8mm dia bar.And reqired area
of steel in 1m wide strip is 452 sqmm/m length (Ast/m
length). the calculation is as follows
Using 8mm dia bar we get spacing in 1m wide strip as
s=[(b*Abar)/Ast] therefore s=[(1000*50.28)/452]. Therefore
required spacing with 8mm dia bars= 111 mm c/c.
similarly the required spacing using 10mm dia bars will be
spacing = [(1000*78.57)/452]. Therefore required spacing
using 10mm dia bars = 173mm c/c in 1m wide strip length.
Is This Answer Correct ? | 63 Yes | 9 No |
Answer / murali
dia^2/spacing=dia^2/X
if there is 10mm rod 150 mm spacing replace 8mm
100/150=64/X
0.6666=64/X
therefore X=64/0.666
=96mm
if you provide 8mm rod spacing should 96mm
Is This Answer Correct ? | 26 Yes | 4 No |
Answer / subhasis1991
You can think this in other way...
To use 10mm dia bars you just need to calculate spacing to be provided.....
When you are to use 8mm bar you would be provided the spacing(S1)..Now the spacing to be provided for a design is dependent on bar area(which is proportional to bar dia^2)...For greater bar area spacing would be less and vice versa ,so spacing is pretty much inversely proportional to the area of bar...Now to get 10mm bar spacing you just need to calculate :S1*(10^2/8^2) and you are done..
Is This Answer Correct ? | 20 Yes | 10 No |
Which is quantity of cement in 1 cu.m. concrete of M25 grade
What is meant by dimensioning?
Explination of Expenwion Joints and Construction Joints in Panel casting of Causways?
which one is economical construction brick masonry or sold block masonry?
how calculate the cube strength in percentage
state and explain in Water absorption of brick
how calculate bench mark errors
For Granite Flooring,For Cement Slurry purpose which one is effective of cost control whether OPC or PPC or White cement?
can we find any technical issue if we are gong to change the dimensions of steel beams from one type to another type IE if there are any equievelant data base to find solution for problem of changeing sectios of beam from one type to another with the same cross sectional area.
what is pile foundation?
what is the cement mortor thickness for 23 cm brick work and 11.5 brickwork?
How do you determine specific gravity of cement?