Key Design and Structural Checking of Cast-in-place Support for Cantilever Hanging Basket Construction of Large-span Variable Cross-section Continuous Box Girder
As a common construction method of long-span variable cross-section continuous box girder,cantilever hanging basket construction is widely used in highway and railway bridges.However,its construction period is long,and there are certain requirements for construction space.Some projects still need to be changed to large-segment cast-in-place.Taking a(40+60+40)m variable cross-section continuous box girder as an example,this paper explains in detail how to redesign the structure after changing the construction scheme,and analyzes the structural stress difference between the two construction schemes.It is hoped that this study will provide reference for similar bridge changes.
cantilever hanging basket constructioncast-in-place large segment bracketstructural designstructural checking
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