| 带约束拉杆矩形钢管混凝土短柱延性分析 |
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| 引用本文： | 蔡健,林焕彬,侯磊,朱昌宏.带约束拉杆矩形钢管混凝土短柱延性分析[J].深圳大学学报(理工版),2011,28(3). |
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| 作者姓名： | 蔡健 林焕彬 侯磊 朱昌宏 |
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| 作者单位： | 1. 华南理工大学土木与交通学院,广州,510640;华南理工大学,亚热带建筑科学国家重点实验室,广州,510640
2. 华南理工大学土木与交通学院,广州,510640 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 基于纤维模型法非线性分析程序,利用带约束拉杆矩形钢管混凝土的本构关系,模拟带约束拉杆矩形钢管混凝土短柱承载力-变形全过程,计算与实验结果吻合.研究表明,约束拉杆间距越小,直径越大,钢管壁厚越大,钢材强度越小,偏压短柱的延性指标越大;混凝土强度和截面宽厚比越大,偏压短柱的延性指标越小;双向偏压短柱的延性指标在0°和90°方向达最小,在截面角区方向达最大;各参数对双向偏压短柱截面延性系数-荷载角曲线的影响类似.
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| 关 键 词： | 结构工程 钢管混凝土 短柱 约束拉杆 曲率延性 数值分析 |
Analysis of ductility of rectangular concrete-filled steel tube stub columns with binding bars subjected to eccentric loading |
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| CAI Jian,LIN Huan-bin,HOU Lei,ZHU Chang-hong.Analysis of ductility of rectangular concrete-filled steel tube stub columns with binding bars subjected to eccentric loading[J].Journal of Shenzhen University(Science &engineering),2011,28(3). |
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| Authors: | CAI Jian LIN Huan-bin HOU Lei ZHU Chang-hong |
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| Affiliation: | CAI Jian1,2,LIN Huan-bin1,HOU Lei1,and ZHU Chang-hong11)School of Civil Engineering and Transportation,South China University of Technology Guangzhou 510640 P.R.China2)State Key Laboratory of Subtropical Building Science,South China University of Technology Guangzhou 510640 P.R.China |
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| Abstract: | Numerical analysis of the process curve of capacity-deformation of rectangular concrete-filled steel tube stub columns with binding bars subjected to eccentric loading was carried out using fiber model method.The analysis,being consistent with the experimental results,indicates that the ductility coefficient increases with the decrease of spacing of binding bars and the yield strength of the steel and the concrete strength and the ratios of width to height,and with the increase of diameter of binding bars a... |
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| Keywords: | structural engineering concrete-filled steel tube stub column binding bars curvature ductility numerical analysis method |
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