Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 3 (Q.No. 13)
13.
A cantilever beam is shown in the below figure. The moment to be applied at free end for zero vertical deflection at that point is
Discussion:
15 comments Page 2 of 2.
Ban said:
6 years ago
I didn't get it. Please anyone explain.
Shail said:
6 years ago
12 KNm. Clockwise is the answer.
Naman said:
5 years ago
Answer is 12knm clockwise because due to 9kn force the moment will be anticlockwise so to resist that moment we have to apply the moment in the anticlockwise direction.
Mayuri said:
5 years ago
Given 12knm anti-clockwise is the correct answer as per sign convention.
Ashish Verma said:
4 years ago
Compare deflection due to point load and deflection due to moment which is used for zero vertical deflection.
Yp=Ym.
WL^3/3EI =ML^2/2EI we get M=12KN-m.
And due to point load at the free end anti-clockwise rotation occurred in the beam so to balance that we use clockwise moment.
So, the answer is 12kN-m clockwise.
Yp=Ym.
WL^3/3EI =ML^2/2EI we get M=12KN-m.
And due to point load at the free end anti-clockwise rotation occurred in the beam so to balance that we use clockwise moment.
So, the answer is 12kN-m clockwise.
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