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What is the recommended value of effective length if the column is effectively held in position and fixed against rotation in both ends?

What is the recommended value of effective length if the column is effectively held in position and fixed against rotation in both ends? Correct Answer 0.65 l

Effectively held in position and fixed against rotation in both ends is 0.65 l. End Positions Of a Column Value of effective length Effectively held in position and fixed against rotation in both ends 0.65 × l Effectively held in position at both ends but not restrained against rotation 1.00 × l

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