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首页> 外文期刊>International journal of steel structures >Compression-bending Performance of L-shaped Column Composed of Concrete Filled Square Steel Tubes under Eccentric Compression
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Compression-bending Performance of L-shaped Column Composed of Concrete Filled Square Steel Tubes under Eccentric Compression

机译：钢管混凝土L形柱偏心受压弯压性能

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摘要

In order to investigate mechanical properties of L-shaped column composed of concrete-filled square steel tubes (LCFT column) under eccentric compression, LCFT columns were designed and tested. Through two eccentric compression experiments, the failure mode, the curves of loading-displacement for the whole member and the curves of deflection for mono column (single limb of LCFT column) were obtained. Nonlinear finite element analysis was also employed in this investigation, in which thickness of tube flange, connecting plate thickness and diameter of the hole on connecting plate were discussed. According to results of eccentric compression test and finite element analysis, analytical method of bearing capacity of LCFT columns is proposed based on the yielding criterion of the cross-sectional edge stresses. Results of analytical method, finite element analysis and eccentric compression experiment are resistant with each other, and the accuracy of the analytical method in this paper is verified.
机译：为了研究方形钢管混凝土L形柱（LCFT柱）在偏心压缩下的力学性能，设计并测试了LCFT柱。通过两个偏心压缩实验，获得了破坏模式，整个构件的荷载-位移曲线和单柱（LCFT柱的单肢）挠度曲线。这项研究还采用了非线性有限元分析，讨论了管法兰的厚度，连接板的厚度以及连接板上孔的直径。根据偏心压缩试验和有限元分析的结果，根据截面边缘应力的屈服准则，提出了LCFT柱承载力的分析方法。分析方法，有限元分析和偏心压缩实验的结果相互抵触，证明了本文分析方法的准确性。

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