Question

The design bending strength of beams when V ≤ 0.6Vd is given by

(a) βb /Zpfy γm0

(b) βbZpfy / γm0

(c) βbZp /fy γm0

(d) βbZpfy γm0

I had been asked this question by my school teacher while I was bunking the class.

This interesting question is from Design Strength of Laterally Supported Beams topic in portion Design of Beams of Design of Steel Structures

Answer 1

Correct choice is (b) βbZpfy / γm0

To explain: The design bending strength of beams when V ≤ 0.6Vd is given by Md = βbZpfy / γm0 , where βb is a constant, Zp = plastic section modulus of cross section, fy is yiled stress of material, γm0 = 1.1,partial safety factor.