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How is the de...

Question

How is the deflection in RC beams controlled as per IS:456?

A

By using large aspect ratio

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B

By using small modular ratio

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C

By controlling span/depth ratio

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D

By moderating water-cement ratio

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Solution

The correct option is C By controlling span/depth ratio
(c) Deflection/vibration and cracking of R.C. member are checked by limit state of serviceability. Final deflection should be limited to maximum span/ 250 mm. Deflection limit is controlled by limiting span/depth ratio of the RC member.

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