Civil Engineering - RCC Structures Design - Discussion
Discussion Forum : RCC Structures Design - Section 1 (Q.No. 18)
18.
Dimensions of a beam need be changed if the shear stress is more than
Discussion:
31 comments Page 1 of 4.
Dayanand Pathak said:
1 decade ago
As per table-20 in IS-456 maximum shear stress can be taken by M-15 concrete grade beam is 25kg/cm2.
Arnab Chanda said:
1 decade ago
But here it is not declared what type of grade is used.
Abhishek said:
1 decade ago
Then how will we guess it?
Anuj said:
1 decade ago
It is depend only on concrete grade. How can we decide?
Rahul yadav said:
1 decade ago
Please anybody clear this question how we can decide grade we take M-25 then?
Harishankar said:
1 decade ago
How to estimate shear stress?
Varun said:
1 decade ago
As the maximum shear stress depends on the grade of concrete we use.
PIYUSH SINGH said:
10 years ago
First of all the grade of Concrete is not mentioned in the question,
Assuming the grade of concrete to be M15 from table no 20 of IS 456, Page no 73, Maximum permissible shear stress for M15 grade is 2.5 N/mm^2 that will be 25 Kg/cm^2.
Assuming the grade of concrete to be M15 from table no 20 of IS 456, Page no 73, Maximum permissible shear stress for M15 grade is 2.5 N/mm^2 that will be 25 Kg/cm^2.
Ankit said:
9 years ago
Please, someone explain permissible shear stress in RCC beam is 5 kg/cm^2 i.e safe in shear.
If shear stress exceeds 20 kg/cm^2 then we redesign the section.
So how you guys are saying for M15 grade concrete it is 25kg/cm^2?
If shear stress exceeds 20 kg/cm^2 then we redesign the section.
So how you guys are saying for M15 grade concrete it is 25kg/cm^2?
Pramit said:
9 years ago
As per my knowledge, it depends on the grade of concrete.
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