Question:
Maximum longitudinal reinforcement in columns shall not exceed ____
Maximum longitudinal reinforcement in columns shall not exceed ____
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IS 456 limits for longitudinal reinforcement:
\[
\boxed{
\begin{aligned}
\text{Minimum} &=0.8\% \text{ of gross area}\\
\text{Maximum} &=6\% \text{ of gross area}
\end{aligned}
}
\]
(Practically, about \(4\%\) is preferred to avoid congestion.)
Updated On: Jul 23, 2026
- \(6\%\) of effective sectional area
- \(4\%\) of gross sectional area
- \(6\%\) of gross sectional area
- \(4\%\) of effective sectional area
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The Correct Option is C
Solution and Explanation
Step 1: Recall the IS 456 provisions for column reinforcement.
According to IS 456:2000, the longitudinal reinforcement in reinforced concrete columns is limited to facilitate proper concreting.
Step 2: State the maximum limit. The maximum longitudinal reinforcement permitted is \[ \boxed{6\%} \] of the gross cross-sectional area. Hence, \[ \boxed{(C)} \] is the correct answer.
Step 2: State the maximum limit. The maximum longitudinal reinforcement permitted is \[ \boxed{6\%} \] of the gross cross-sectional area. Hence, \[ \boxed{(C)} \] is the correct answer.
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