CDS Infra Projects Structural Engineer Interview Questions and Answers

PSC girders are stressed using hydraulic jacks to induce compressive forces in the concrete.

• Prestressing is done to counteract the tensile stresses that develop in the concrete due to its own weight and external loads.

• The stressing process involves placing high-strength steel wires or strands inside the concrete girder before casting it.

• After the concrete has hardened, the wires are tensioned using hydraulic jacks, whi...read more

Piles are long cylindrical structures used to transfer loads from the superstructure to the soil.

• Types of piles include driven piles, cast-in-place piles, and helical piles.

• Driven piles are installed by hammering or vibrating them into the ground.

• Cast-in-place piles are formed by drilling a hole and filling it with concrete.

• Helical piles are screwed into the ground using a hydraulic motor.

• The type of pile used depends ...read more

Friction piles rely on skin friction for support while end bearing piles rely on the bearing capacity of the soil or rock at the bottom.

• Friction piles transfer the load to the soil through frictional resistance between the pile surface and the soil.

• End bearing piles transfer the load to the soil through the bearing capacity of the soil or rock at the bottom of the pile.

• Friction piles are suitable for cohesive soils whi...read more