An Analytical Solution for Lateral Buckling Critical Load Calculation of Leaning-Type Arch Bridge

Ai-rong Liu, Yong-hui Huang, Qi-cai Yu and Rui Rao

Mathematical Problems in Engineering, 2014, vol. 2014, 1-14

Abstract:

An analytical solution for lateral buckling critical load of leaning-type arch bridge was presented in this paper. New tangential and radial buckling models of the transverse brace between the main and stable arch ribs are established. Based on the Ritz method, the analytical solution for lateral buckling critical load of the leaning-type arch bridge with different central angles of main arch ribs and leaning arch ribs under different boundary conditions is derived for the first time. Comparison between the analytical results and the FEM calculated results shows that the analytical solution presented in this paper is sufficiently accurate. The parametric analysis results show that the lateral buckling critical load of the arch bridge with fixed boundary conditions is about 1.14 to 1.16 times as large as that of the arch bridge with hinged boundary condition. The lateral buckling critical load increases by approximately 31.5% to 41.2% when stable arch ribs are added, and the critical load increases as the inclined angle of stable arch rib increases. The differences in the center angles of the main arch rib and the stable arch rib have little effect on the lateral buckling critical load.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:578473

DOI: 10.1155/2014/578473

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