Question

What is the value of load factor for I-section when fbc= 0.66fy and mean value of v is 0.14?

(a) 1.727

(b) 2.7

(c) 1.56

(d) 3.98

I had been asked this question in an online interview.

My doubt stems from Theorem of Plastic Collapse & Methods of Plastic Analysis topic in section Plastic and Local Buckling Behaviour of Steel of Design of Steel Structures

Answer 1

The correct answer is (a) 1.727

The explanation is: Load factor, F = (fy/fbc)v.  F = (1/0.66) x 0.14 = 1.27.