Civil Engineering MCQAE Level Civil Engineering
Which of the following is an IMMEDIATE loss of prestress in a pre-tensioned concrete member?
RCCPre-stress LossesMEDIUM
Choose the correct answer
A
Creep of concrete
B
Shrinkage of concrete
C
Relaxation of steel
D
Elastic shortening of concrete
Correct Answer
D. Elastic shortening of concrete
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Immediate losses in pre-tensioned members: (1) Elastic shortening of concrete (instantaneous). Time-dependent losses include: creep, shrinkage, and relaxation. In post-tensioned members, elastic shortening depends on jacking sequence.
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