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The redistribution of moments in a statically inderminate beams is restricted to 'q' percent as per the IS 456 limit state design method, wherein, q is:

The redistribution of moments in a statically inderminate beams is restricted to 'q' percent as per the IS 456 limit state design method, wherein, q is: Correct Answer 30%

Explanation:

As per IS 456:2000 CI.37.1.1. Redistribution of Moments in Continuous Beams and Frames:

  • The redistribution of moments may be carried out satisfying the following conditions:
    • Equilibrium between the internal forces and the external loads is maintained.
    • The ultimate moment of resistance provided at any section of a member is not less than 70 percent of the moment at that section obtained from an elastic maximum moment diagram covering all appropriate combinations of loads.
    • The elastic moment at any section in a member due to a particular combination of loads shall not be reduced by more than 30 percent of the numerically largest moment given anywhere by the elastic maximum moments diagram for the particular member. covering all appropriate combinations of loads.

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