Buckling Analysis of Two-Span Continuous Beams with Lateral Elastic Brace under Uniform Load


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Both total potential energy and buckling equation of two-span continuous beam with lateral elastic brace under uniform load are deduced, based on energy variation method and the principle of minimum potential energy. Buckling of H-beams is simulated by ANSYS software, then compared to theoretical value, validated its rationality. High precision buckling moment formula is regressed using 1stOpt which is a famous mathematical optimization analysis software in China. The relationship between lateral brace stiffness and buckling moment is obtained. Results: with lateral brace stiffness increases, critical bending moment of beam increases within up-limit, e.g. when lateral brace stiffness increases to certain extent, buckling moment no longer increases.



Advanced Materials Research (Volumes 163-167)

Edited by:

Lijuan Li




W. F. Zhang et al., "Buckling Analysis of Two-Span Continuous Beams with Lateral Elastic Brace under Uniform Load", Advanced Materials Research, Vols. 163-167, pp. 641-645, 2011

Online since:

December 2010




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