Haihe Bengbu Bridge Antisymmetric Space Distorted Mesh Arch Structure Research

Haihe Bengbu Bridge is a structure with anti-symmetric space distorted mesh arch.This paper has done a detail research on its complex Stress performance, importantnodes. Main research work content and the results are as follows.（1）The calculation uses MIDAS/Civil software, focusing on thethree-dimensional linear analysis under all the loads, analysis of self analysis andbuckling modal characteristics.（2）Tianjin Haihe Bengbu bridge has is characteristics, for example, the mainstructure is a specific three-dimensional reticular structure, its Stress performance isvery complex, so relevant parts’s Stress performance is different from the conventionalstructure. The research focus on the tension and compression shear branchBlock bracingV pier, vertical and horizontal arch and other key parts trials that needed.The results of the construction monitoring and bridge experiment later indicated that,the Calculation method and the finished bridge state is reasonable, the constructionmonitoring and Special structure is viable. Research findings has a certain referencevalue for the design and construction of similar bridge for the future.