Question

A steel member 'M' has reversal of stress due to live load, whereas another member 'N' has reversal of stress due to wind load. As per IS 800-2007, the maximum slenderness ratio permitted is

• A. less for member M than that of member N
• B. Same for both
• C. more for member M than for member N
• D. Not specified in code.

Answer 1

The correct option is A less for member M than that of member N

As per is 800 : 2007

Maximum slenderness ratio for a tension member in which a reversal of direct stress due to loads other than wind or seismic forces occurs = 180

Maximum slenderness ratio for a member normally acting as a tie in a roof truss or a bracing system but subjected to possible reversal of stresses resulting from the action of the wind or earthquake forces = 350