Pressure Line Concept

Q. For a certain set of external loads, concordant profile in a prestressed beam represents to some scale the

1. Influence line diagram
2. Shear force diagram
3. Bending moment diagram
4. Williot-Mohr diagram

Q. The use of 'concordant cables' in prestressed continuous beam induces

1. initial support reactions
2. no initial support reactions
3. excess cracking
4. excess deflection

Q. If a simply supported concrete beam, prestressed with a force fo 2500 kN is designed by load balancing concept for an effective span of 10 m and to carry a total load of 40 kN/m, the central dip of the cable profile should be

1. 100 mm
2. 200 mm
3. 300 mm
4. 400 mm