A concrete beam is prestressed by a cable carrying an initial prestressing force of 300kn, area is 300mm2. Calculate the percentage of loss of stress due to shrinkage in pretensioned members?
A. 6.3%
B. 5.3%
C. 4%
D. 2.3%
Answer:A
A concrete beam is prestressed by a cable carrying an initial prestressing force of 300kn, area is 300mm2. Calculate the percentage of loss of stress due to shrinkage in pretensioned members?
A. 6.3% B. 5.3% C. 4% D. 2.3%