The Shear-Lag Effect on Curved Box Girder Bridge Considering Prestress and Initial Curvature

Abstract:

According to the principle of minimum potential energy and energy differential methods and assuming the shear lag warp displacement function with consideration of prestressed steel, a set of differential equations are deduced with different boundary conditions in considering moment, torsion, shear lag coupling. And the numerical solution of the differential equations is gained by Galerlein method. In addition, explores the influence on shear lag with prestressed force or not, dead loading, live loading and prestressed forces of the prestessed steels the areas of them basing on the model experiment and finite element model. Comparisons of results for typical numerical examples are given to verify the accuracy and applicability of the present method.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2100-2104
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2100
• Online since: October 2012
• Authors: Jin Li Qiao*, Yong Jin, Wen Ling Tian, Xiang Shang Chen, Chuang Du, Shu Ling Gao
• Keywords: Curved Box Girder, Effect of Shear-Lag, Initial Curvature, Pre-Stress

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