Civil and Environmental Engineering Answers

26. Which one is a better choice, a large diameter piles or a system of several smaller piles with the same load capacity?

24. For a rigid pile cap with vertical piles at the middle and raking piles at the sides, what is the pattern of load distribution of piles in such arrangement?

25. What are the problems associated with prestressed concrete piles (Daido)?

Draw the shear, moment and axial load diagrams for each member of the frame. The joints at A, B, and C

are pin connected.

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11. What is the difference between sureties and security?

10. Should design life be the same as return period for design conditions?

14. What is the difference between normal bolts and high friction grip bolts?

1. Under what situation shall engineers use jacking at one end only and from both ends in prestressing work?

5. What are the advantages of assigning the central pier and the abutment as fixed piers?

4. In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete?