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 2 of 4.
BISWAJIT said:
6 years ago
Here it is mentioned the term beam which is a reinforced concrete. Also as IS-466, for reinforced concrete minimum grade of concrete shall be M20.
Hence, by considering this situation, the Tau Max shall be not more than 25 kg/sqcm.
Hence, by considering this situation, the Tau Max shall be not more than 25 kg/sqcm.
Rehan said:
7 years ago
The section is revised if shear stress is more than 0.4fc or 2 Mpa,and 2 Mpa is equal to 20kgper cm2.
Akshay said:
7 years ago
As per IS 456-1978 section is redesigned if shear stress is greater than 20 kg/cm2 or 2N/mm2.
So, the Given answer is correct.
So, the Given answer is correct.
Ajay kumar said:
7 years ago
Max shear stress of concrete= 0.63 under root fck.
So, for M15 concert it should be;
0.63 x under root 15 = 2.5 N/mm^2.
So, for M15 concert it should be;
0.63 x under root 15 = 2.5 N/mm^2.
Ghalib said:
7 years ago
Yes, Agree @Sourab Sharma.
Actually it is .63√(fck). So for higher grades, it will be the max.
Actually it is .63√(fck). So for higher grades, it will be the max.
Abhishek said:
7 years ago
Method is not specified so lets say WSM,
Grade is not specified so lets say M15.
Max permissible shear stress for M15 under WSM is 1.6 N/mm^2 .
so all options are wrong.
Grade is not specified so lets say M15.
Max permissible shear stress for M15 under WSM is 1.6 N/mm^2 .
so all options are wrong.
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.
Sourab sharma said:
8 years ago
Maximum shear stress = 0.63(fck)^(1/2).
For M10 grade of concrete = 1.999 n/mm^2.
For M10 grade of concrete = 1.999 n/mm^2.
Shridhar rai said:
8 years ago
Acc to clause 40.2.3.1 for solid slabs nominal shear stress should not exceed half of the value of maximum shear stress i.e. (0.5*4)N/mm2 =2 N/mm2.
Arya. said:
8 years ago
Shear stress value is more 1.8 N/mm2.
Then beam is redesign.
Then beam is redesign.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers