Question

Thickness of lacing member should be

(a) less than 1/40^th of the effective length for single lacing

(b) not less than 1/60^th of the effective length for double lacing

(c) less than 1/60^thof the effective length for double lacing

(d) less than 1/60^th of the effective length for single lacing

The question was asked in an interview for job.

Question is taken from Lacings topic in division Design of Compression Members of Design of Steel Structures

Answer 1

Right option is (b) not less than 1/60^th of the effective length for double lacing

The explanation is: Thickness of lacing member should not be less than 1/40^th of the effective length for single lacing and not less than 1/60^th of the effective length for double lacing.