Question

A steel column in a multi-storeyed building carries an axial load of 250 kN. It is built by 2 ISMC 350 channels connected by lacing. The maximum transverse shear resisted by the lacing system carries an load of _____ kN.

• A. 6.25

Answer 1

The correct option is A 6.25
The lacing system resist a total transverse shear (V) equal to 2.5% of the axial load.

$V=\frac{2.5}{100}\times 250$
$=6.25$ $kN$