By what factor do you increase the resistance to bending (about x-x axis) if you were to use W18 × 76 beam over W8 × 31?

What will be an ideal response?


The bending of a beam depends on type of loading, boundary conditions, etc.
Considering only the I values: W18 × 76 --- I =1330 in^4 and for W8 × 31--- I =110 in4,
you increase the resistance to bending by a factor of 12.

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