A steel frame is shown in the given figure.If joint O of the frame is rigid, the rotational stiffness of the frame at point O is given by

A steel frame is shown in the given figure.If joint O of the frame is

1.	A steel frame is shown in the given figure.If joint O of the frame is rigid, the rotational stiffness of the frame at point O is given by
A.	[A].
B.	[B].
C.	[C].
D.	[D].
Answer» B. [B].

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A steel frame is shown in the given figure.If joint O of the frame is rigid, the rotational stiffness of the frame at point O is given by

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