| 带约束拉杆方形钢管混凝土短柱延性计算 |
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| 引用本文： | 朱昌宏.带约束拉杆方形钢管混凝土短柱延性计算[J].科学技术与工程,2010,10(28). |
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| 作者姓名： | 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
2. 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 |
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| 摘 要： | 采用带约束拉杆方形钢管混凝土的本构关系,建立了基于纤维模型法的模拟带约束拉杆方形钢管混凝土短柱承载力-变形全过程曲线的非线性分析方法,计算结果与试验结果吻合良好.利用经试验验证的计算程序对带约束拉杆方形钢管混凝土短柱的单向和双向偏压延性进行较系统的参数分析,回归了带约束拉杆方形钢管混凝土单向和双向偏压延性简化计算公式,公式的计算精度高,形式简单.
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| 关 键 词： | 方形钢管混凝土 短柱 约束拉杆 曲率延性 数值分析 |
| 收稿时间： | 7/16/2010 4:13:39 PM |
| 修稿时间： | 8/2/2010 12:29:32 AM |
CALCULATION OF DUCTILITY OF SQUARE CFT STUB COLUMNS WITH BINDING BARS SUBJECTED TO ECCENTRIC LOADING |
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| ZhuChangHong.CALCULATION OF DUCTILITY OF SQUARE CFT STUB COLUMNS WITH BINDING BARS SUBJECTED TO ECCENTRIC LOADING[J].Science Technology and Engineering,2010,10(28). |
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| Authors: | ZhuChangHong |
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| Institution: | ZHU Chang-hong1,SU Guang-qun1,ZHAO Xiao-qin1,CAI jian1,2(Dept.of Civ.Engrg1.and State Key Laboratory of Subtropical Building Science2,South China University of Technology,Guangzhou 510640,P.R.China) |
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| Abstract: | To adopt the constitutive relationship of square CFT with binding bars, nonlinear analysis method of the whole process curve of capacity-deformation of square CFT stub columns with binding bars subjected to eccentric loading is carried out based on fiber model method. The analysis results are in good agreement with the experimental ones. The parameters analysis of the curvature ductility of the CFT stub columns subjected to uniaxial and biaxial eccentric loading are performed by using verified programs, simplified formulas to calculate curvature ductility of square CFT with binding bars are regressed, which have high accuracy and simple expression. |
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| Keywords: | Square CFT stub column Binding bars Curvature ductility numerical analysis method |
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