Shear lag effect of the wide box girder of a single-plane extradosed cable-stayed bridge in construction stage
Abstract：In light of finite element theory and taking Shiwan Bridge as a reference, we established the spatial finite element model of the whole bridge and studied the mechanical characteristics and shear lag effect of girder with Prestressing and vertical concentration forces of a Single-plane Extradosed Cable-stayed Bridge in each construction stage. We found that Shear Lag Effect of the Wide Box Girder of a Single-plane Extradosed Cable-stayed Bridge is serious （the Maximum shear lag coefficient is 1.93）,and tensile region occurred in the flange. Additionally, the positive shear lag effect of girde is presented in the largest cantilever state and the distribution of stress is basically in accord with the stress diffusion principle.
Keywords：extradosed cable-stayed bridgeconstruction stageshear lag effectfinite element
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 28-33 )