The Stress Analysis Of The Cross Diaphragm In Segment No.0 For The Longhua Super Large Bridge

Rigid-continuous beam bridge is a combination of rigid bridge and continuous bridge.It has the advantages of both rigid bridge and the continuous bridge,and abandoned the disadvantages of them.This kind of bridge is superiority in the aspects of stress distribution, using function,and the adaptability of environment.After the first rigid-continuous beam bridge,Shandong Dongming Yellow river bridge,being constructed and using successfully, this kind of bridge is wide constructed in our country recent years.PC rigid-continuous beam bridge bridge has been wildly used in long-span bridge for its excellent performance in stureture.In the course of constructing and running,the cross diaphragm in segment No.0 often have crack.It brings serious safety problem and has been widely regard by the bridge engineer.According to the whole construction period,it studied the most complicate cross diaphragm in segment No.0.We analyze the interspace finite element with the help of Ansys system.Then we establish the stress field during the construction period for the cross diaphragm in segment No.0 by imitate analyzer.Based on the result of calculation and test,it summarizes the change law of stress during the construction.According to the interspace finite element analyses,this paper gets the stress field of the cross diaphragm in segment No.0 during the construction period.The research can offer the reference for the design and construction of the same bridge.