In order to reduce the water-blocking area of highway bridges across rivers,some highway bridges are designed with full-span double-column piers to reduce the number of piers according to the requirements of flood control evaluation.In order to study the influence of the full-span double-column pier beam erection sequence on the structural stress of the expressway,this paper takes the river-related bridge engineering on an expressway in Qingyang of Gansu Province as an example.The MIDAS software is used for model according to the original design scheme,and the influence of different beam plate installation sequences on the stress and deformation of the substructure is analyzed.Finding the maximum tensile and compressive stress values of the concrete section under two load conditions can provide reference for the installation construction of beam plate in related engineering.
the full-span double-column bridgebeam erection constructionnumerical analysis
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