Question

Which of the following is correct in case of channel members?

(a) connection of lug angle to angle member should have a strength not less than 20% of excess of force in flange of channel

(b) connection of lug angle to angle member should have a strength less than 20% of excess of force in flange of channel

(c) lug angles and their connection to gusset should be capable of developing a strength of less than 10% of excess of force in flange of channel

(d) lug angles and their connection to gusset should be capable of developing a strength of less than 5% of excess of force in flange of channel

This question was posed to me during an interview for a job.

This interesting question is from Lug Angles, Splices & Gusset Plates in chapter Design of Tension Members of Design of Steel Structures

Answer 1

The correct option is (d) lug angles and their connection to gusset should be capable of developing a strength of less than 5% of excess of force in flange of channel

Easiest explanation: In case of channel members, lug angles and their connection to gusset should be capable of developing a strength of not less than 10% of excess of force in flange of channel, and the attachment of lug angle to angle member should have a strength not less than 20% of excess of that force.