1.

The rigid portal frame shown in the given figure will not have any side sway if (Note: I1 = the moment of inertia of the column cross-section, I2 = the moment of inertia of the beam cross-section)

A. it is subjected to vertical loading only
B. I 2 = 2 I1
C. 2I2 = I1
D. the loading is symmetrical about its center line
Answer» E.


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