Transverse Deformation and Countermeasures of Cantilever Assembly of Super-Wide Steel Box Girder of Zhongshan Bridge over Shenzhen-Zhongshan Link
In view of the transverse deformation of super-wide steel box girders of cable-stayed bridges during the cantilever assembly,the construction characteristics of the two-way eight-lane super-wide steel box girder of Zhongshan Bridge over Shenzhen-Zhongshan Link were analyzed,and the main causes of the transverse deformation during the cantilever assembly of the super-wide steel box girder were investigated.According to the matching height difference adjustment technology in the cantilever assembly construction of the wide box girder in China and abroad,this paper innovatively proposed a matching process of straight beam locking+initial tension of hanging cables,which better solved the problem of poor transverse deformation during the cantilever assembly of the super-wide steel box girder of Zhongshan Bridge.
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