Question

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

• A. Influence line diagram
• B. Shear force diagram
• C. Bending moment diagram
• D. Williot-Mohr diagram

Answer 1

The correct option is D Williot-Mohr diagram

Cable profiles are selected in a prestressed beam such that the transverse component of the cable force balances the given type of external loads. The concept of loading-balancing is useful in selecting the tendon profile, which can supply the most desirable system of forces in concrete. In general, this requirement will be satisfied if the cable profile in a prestressed member corresponds to the shape of the bending moment diagram resulting from the external loads.