| Q.96 | A post-tensioned concrete beam, 100 mm wide and 300 mm deep, is pre-stressed by three cables, each with a cross-sectional area of 50 mm2 and with initial stress of 1200 N/mm2. All three cables are straight and located 100 mm from the soffit of the beam. If the modular ratio is 6, calculate the loss of pre-stress in the three cables due to elastic deformation of concrete under simultaneous tensioning and anchoring of all the three cables. | |
| Ans | 1. 0 N/mm2 | |
| 2. 6.8 N/mm2 | ||
| 3. 16.2 N/mm2 | ||
| 4. 22.56 N/mm2 |
Correct Ans Provided: 1
