Question

Which of the following is true statement?

(a) thickness of angle has no significant influence on member strength

(b) net section efficiency is lower when long leg of angle is connected rather than short leg

(c) when length of connection decreases, the tensile strength increases

(d) effect of gusset plate thickness on ultimate tensile strength is significant

I had been asked this question during a job interview.

This key question is from Angles Under Tension and Factors affecting Strength topic in section Design of Tension Members of Design of Steel Structures

Answer 1

The correct option is (a) thickness of angle has no significant influence on member strength

The explanation is: (i) The effect of gusset plate thickness on ultimate tensile strength is not significant, (ii) the thickness of angle has no significant influence on member strength, (iii) the net section efficiency is higher(7-10%) when long leg of angle is connected rather than short leg, (iv) when length of connection increases, the tensile strength increases upto four bolts and effect of any further increase in number of bolts on tensile strength of member is not significant.