Steel Structure Design - Engineering

Q1:

If f is the maximum allowable bending stress in a tension member whose radius of gyration is r and depth is 2y, the required cross sectional area A is given by

A

B

C

D

E

ANS:A -

We have: F=My/I.
Also, I=√(I/A)=> I= r^2*A.
Now F =My/r^2*A => A= My/fr^2.