Interview Questions - Prestressed Concrete and Bridge Engineering

1. Describe through sketch/figure hyperstatic stresses in case of Prestressed concrete strcutres.
2. Explain Kern Distances and procedure to compute for given cross section
3. Describe Pre stress losses and procedure to compute these losses
4. Draw influence line diagram for Reaction at Support A, Bending Moment at Support B and Shear force at Support C for continuous three span girder shown below

Three Span Continuous Girder, Draw Influence Line Diagram 

5. For Single cell box girder prestressed simply supported box girder shown below for Highway bridge, Provide approximate range for Span/D, dimension l1/dimension l2 and Angle of Web with horizontal

Box Girder, Half symmetric cross section

6. Describe load path for following Bowstring Girder bridge

Bow String Girder Bridge

7. Describe various construction technology for large span bridge superstructure with sketches

8.  Describe two structural design criteria for Cables in cable stayed bridge shown below

9. Describe critical Imposed Load ( Uniformly distributed Load) position for Cable marked "A" and "B" below

Two span symmetrical cable stayed bridge

10. Describe structural design criteria for Cables in Extradosed bridge shown below

Engineer Hemant Gor, GorHemant@GMail.com