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GATE Exam Questions - Engineering

Q1:

A single bay single storey portal frame has hinged left support and a fixed right support. It is loaded with uniformly distributed load on the beam. Which one of the following statements is true with regard to the deformation of the frame ?

A It would sway to the left side

B It would sway to the right side

C It would not sway at all

D None of the above

ANS:A - It would sway to the left side

If loading is symmetrical and the frame is not symmetrical then the frame will sway towards the column having minimum stiffness.

For fixed, stiffness (S) =4EI/L.
For hinge, stiffness (S) =3EI/L.