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The IS 456-2000 recommended value of effective length of a RCC compression member of unsupported length l effectively held in position and restrained
Question

The IS 456-2000 recommended value of effective length of a RCC compression member of unsupported length l effectively held in position and restrained against rotation in both ends is:

A.

0.65 l

B.

1.0 l

C.

0.8 l

D.

1.5 l

Correct option is A

As per IS 456:2000, the effective length of a reinforced cement concrete (RCC) compression member depends on the end conditions.
For a column:
Effectively held in position at both ends, and
Restrained against rotation at both ends,
the recommended effective length is:
Effective length = 0.65 l

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