Answer to Question #252791 in Chemical Engineering for Ali

Question

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

Answer 1

Jacking at one end is done in the following situations : When the cost of prestressing is more important and a larger loss in prestress is acceptable. When exact parabolic cable profile and stress distribution can be compromised, or when an asymmetric stress distribution is desired.