Abstract
The choice of closure order of long span prestressed concrete continuous rigid frame bridge is the key part on its construction procedure, which has a big influence on the gross force and alignent of the whole structure. On the Basis of the Hanjiang bridge, the paper studies the closure order of long span prestressed concrete continuous rigid frame bridge and its system transformation procedure as well as the effect of jacking force etc. It shows that the technique of the midspan and the sidespan close at the same time not only meets the requirement of allowable internal force, but also has the benefit of shorten the construction period as well as reducing the degree of construction difficulty.
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