UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

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A doubly reinforced concrete beam has effective cover d' to the centre of compression reinforcement. x_u is the depth of neutral axis, and d is the effective depth to the centre of tension reinforcement. What is the maximum strain in concrete at the level of compression reinforcement?

0.0035 (1 - d'/d)

0.0035(1 - d'/x_u)

0.002(1 - d'/x_u)

0.002(1 - d'/d)

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