[1]蔡健,林焕彬,侯磊,等.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(No.3(189-282)):213-217.
 CAI Jian,LIN Huan-bin,HOU Lei,et al.Analysis of ductility of rectangular concrete-filled steel tube stub columns with binding bars subjected to eccentric loading[J].Journal of Shenzhen University Science and Engineering,2011,28(No.3(189-282)):213-217.
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带约束拉杆矩形钢管混凝土短柱延性分析()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第28卷
期数:
2011年No.3(189-282)
页码:
213-217
栏目:
土木建筑工程
出版日期:
2011-05-20

文章信息/Info

Title:
Analysis of ductility of rectangular concrete-filled steel tube stub columns with binding bars subjected to eccentric loading
文章编号:
1000-2618(2011)03-0213-05
作者:
蔡健12林焕彬1侯磊1朱昌宏1
1)华南理工大学土木与交通学院,广州 510640
2)华南理工大学,亚热带建筑科学国家重点实验室,广州 510640
Author(s):
CAI Jian12LIN Huan-bin1HOU Lei1and ZHU Chang-hong1
1)School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, P.R.China
2)State Key Laboratory of Subtropical Building Science, South China University of echnology, Guangzhou 510640, P.R.China
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
Keywords:
structural engineeringconcrete-filled steel tubestub columnbinding barscurvature ductilitynumerical analysis method
分类号:
TU 398
文献标志码:
A
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.
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 and the thickness of the tube.The minimum value of ductility coefficient of stub columns subjected to biaxial eccentric loading appear on the degree of 0° and 90°,and the maximum value appears at the direction of corner area.The effects of parameters on Ductility coefficient-loading angle curves of stub columns subjected uniaxial and biaxial eccentric loading are similar.

参考文献/References:

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[1] CAI Jian,HE Zheng-qiang,CHEN Xing.Experimental study on behavior of rectangle CFT stub column with binding bars subjected to axially loading[J].Industrial Construction,2007,37(3):75-80.(in Chinese)
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备注/Memo

备注/Memo:
收稿日期:2010-04-02;修回日期:2010-10-08
基金项目:国家自然科学基金资助项目(50878087)
作者简介:蔡健(1959-),男(汉族),广东省潮州市人,华南理工大学教授、博士生导师. E-mail:cvjcai@scut.edu.cn
更新日期/Last Update: 2011-05-22