Calculate the stress of pretensioned beams assuming as propped during the casting of the slab if Zt is 225×10, Zb is 128x104mm3 and moment due to self weight is 1200nmm?
A. 12.3 and 4.5
B. 0.53 and 0.94
C. 0.23 and 0.45
D. 1.23 and 0.67
Answer:B
Calculate the stress of pretensioned beams assuming as propped during the casting of the slab if Zt is 225×10, Zb is 128x104mm3 and moment due to self weight is 1200nmm?
A. 12.3 and 4.5 B. 0.53 and 0.94 C. 0.23 and 0.45 D. 1.23 and 0.67