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Q: What is the ratio of most unfavourable slenderness of each member between the intermediate weld connections back to back if the most unfavourable ratio of slenderness of the member as a whole is 90?
  • A. 40
  • B. 54
  • C. 63
  • D. 45
Correct Answer: Option A - Compression members composed of two components back to back – Compression members composed of two angles channels or tees back to back in contact or separated by a small distance, shall be connected together by riveting, bolting or welding, so that the ratio of most unfavourable slenderness of each member between the intermediate connections is not greater than 40 or 0.6 times the most unfavourable ratio of slenderness of the strut as a whole whichever is less.
A. Compression members composed of two components back to back – Compression members composed of two angles channels or tees back to back in contact or separated by a small distance, shall be connected together by riveting, bolting or welding, so that the ratio of most unfavourable slenderness of each member between the intermediate connections is not greater than 40 or 0.6 times the most unfavourable ratio of slenderness of the strut as a whole whichever is less.

Explanations:

Compression members composed of two components back to back – Compression members composed of two angles channels or tees back to back in contact or separated by a small distance, shall be connected together by riveting, bolting or welding, so that the ratio of most unfavourable slenderness of each member between the intermediate connections is not greater than 40 or 0.6 times the most unfavourable ratio of slenderness of the strut as a whole whichever is less.