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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?
7. In prestressing work, if more than one wire or strand is included in the same duct, why should all wires/strands be stressed at the same time?
5. What are the advantages of assigning the central pier and the abutment as fixed piers?
1. Under what situation shall engineers use jacking at one end only and from both ends in prestressing work?
22. What are the shortcomings of grillage analysis which is commonly used in structural analysis of bridges?
17. In the design of a simply supported skew bridge, which direction of reinforcement should be provided?
15. What are the three major types of reinforcement used in prestressing?
