Civil Engineering - Steel Structure Design - Discussion

Discussion Forum : Steel Structure Design - Section 1 (Q.No. 38)
38.
The rolled steel I-sections are most commonly used as beams because these provide
large moment of inertia with less cross-sectional area
large moment of resistance as compared to other section
greater lateral stability
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Shams KhAn said:   5 years ago
I-Section is preferred to the rectangular section for resisting Bending Moment (BM) because in I-Section more than 80% of the bending moment is resisted by the flanges itself! I-Section has a higher moment of resistance (MoR) because the areas of flanges is away from the neutral axis (N.A).

Jiyau Rahman Ansari said:   4 years ago
Yes, Of course there is no doubt that the I-section is the suitable one, Among all other, So, the Answer is D. All of the above.

Kalyan said:   7 years ago
What happens when the moment of inertia is more?

Can anyone explain?

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