Steel Structure Design - Engineering

Q1:

Pick up the correct statement from the following:

A The slenderness ratio of lacing bars for compression members should not exceed 145

B The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept 50 mm

C The minimum thickness of a flat lacing bar is kept equal to one-fortieth of its length between inner end rivets

D The angle of inclination of lacing bars and the axis of the members should be between 40° and 70°

E All the above.

ANS:E - All the above.

The width of the lacing bar is based on?

Anyone explain the answer.