Analytical behaviour of eccentrically loaded concrete-encased CFST box columns
Analytical behaviour of eccentrically loaded concrete-encased CFST box columns
复制标题
偏心加载混凝土钢管混凝土箱形柱的分析性能
DOI:
10.1680/macr.13.00330
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发表时间:
2014-08
影响因子:
2.7
通讯作者:
Zhao Xiao-Ling
中科院分区:
文献类型:
--
作者:
An Yu-Feng;Han Lin-Hai;Zhao Xiao-Ling
This paper presents a theoretical study on the performance of concrete-encased concrete-filled steel tube (CFST) box columns subjected to eccentric axial loading. Finite-element analysis (FEA) was used to analyse the composite columns and experimental data reported recently by the authors was used to verify the FEA modelling. Analysis of the behaviour of the composite, including the full-range load versus lateral mid-height deflection, stress distributions, column failure modes and the interactions between steel and concrete, was carried out. The behaviour of the concrete-encased CFST box columns was compared with that of corresponding reinforced concrete columns and CFST built-up columns. Finally, a parametric study was carried out and the moment magnification approach adopted to propose design formulae for eccentrically loaded concrete-encased CFST box columns.
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