Civil Engineering - Steel Structure Design - Discussion
Discussion Forum : Steel Structure Design - Section 4 (Q.No. 17)
17.
The channels get twisted symmetrically with regard to its axis
Discussion:
3 comments Page 1 of 1.
Baloch said:
9 years ago
If it's parallel to its web, it must be perpendicular to the flange.
MJM Gcek said:
4 years ago
Explain the correct answer.
Prasanna Gosavi said:
4 years ago
Twisting takes place about the axis which has less moment or inertia or least radius of gyration because that axis offers maximum critical load.
In general, channels are weak or has less moment of inertia about the axis which is parallel to the web. Hence, they may buckle or twist about that axis.
Flanges are stronger in resisting bending and twisting moments as compared to web. Hence, there is less chance of twisting in flanges. Hence, the most appropriate option would be '2'.
In general, channels are weak or has less moment of inertia about the axis which is parallel to the web. Hence, they may buckle or twist about that axis.
Flanges are stronger in resisting bending and twisting moments as compared to web. Hence, there is less chance of twisting in flanges. Hence, the most appropriate option would be '2'.
(1)
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