Out-of-plane elastic buckling analysis of box-section arches with lateral bracings

doi:10.16511/j.cnki.qhdxxb.2016.21.062

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Abstract Arches are usually arranged with lateral bracings to improve their out-of-plane stability. The out-of-plane elastic buckling of box-section arches was analyzed with a single lateral bracing on the crown. The energy method was used to derive the formulas for the out-of-plane buckling loads on lateral braced box-section arches for uniform compression or uniform bending. Then, the out-of-plane elastic buckling solution for arches with no lateral bracings was used to derive the threshold stiffness of the lateral bracings. The out-of-plane buckling loads and threshold stiffnesses of the lateral bracings given by this method agree well with finite element results and can be applied to calculate the the out-of-plane inelastic strength of box-section steel arches with lateral bracings.

Keywords steel arches elastic buckling out-of-plane brace energy method threshold stiffness

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TU391

Issue Date: 15 September 2016

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	ZHAO Siyuan
	GUO Yanlin
	WANG Hong

Cite this article:

ZHAO Siyuan,GUO Yanlin,WANG Hong. Out-of-plane elastic buckling analysis of box-section arches with lateral bracings[J]. Journal of Tsinghua University(Science and Technology), 2016, 56(9): 980-984.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2016.21.062 OR http://jst.tsinghuajournals.com/EN/Y2016/V56/I9/980

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