Multiple choice

Consider the following statements I. Effective length of a battened column is usually increased to account for the additional load on battens due to the lateral expansion of columns. II. As per IS: 800-1984, permissible stress in bending compression depends on both Euler buckling stress and the yield stress of steel. III. As per IS: 800-1984, the effective length of a column effectively held in position at both ends but not restrained against rotation, is taken to be greater than that in the ideal end conditions.

The TRUE statements are

  1. only I and II

  2. only II and III

  3. only I and III

  4. I, II and III
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 $\text{As per IS :800-1984,}\\ \text{Ideal condition is that column effectively held in position at both ends but not restrained against the rotation. Both are the same hence statement 3 is false.}$

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