哑铃型钢管混凝土柱的面内弹塑性分析

广东工业大学学报 ›› 2006, Vol. 23 ›› Issue (3): 62-66.

哑铃型钢管混凝土柱的面内弹塑性分析

惠州市规划设计研究院；惠州市道路桥梁勘察设计院广东惠州516001；广东惠州516001；

出版日期:2006-06-02 发布日期:2006-06-02

The Elasto-plastic In-plane Ultimate Load Analysis for CFST Structures

(1.Huizhou Municipal Planning Design and Research Institute,Huizhou 516001,China;2.Huizhou Highway Survey & Design Institute,Huizhou 516001,China)

Online:2006-06-02 Published:2006-06-02

摘要/Abstract

摘要： 采用非线性有限元方法,基于梁理论的纤维单元模型,考虑钢管混凝土的几何非线性和材料非线性因素,建立弹塑性分析方法.应用该方法对哑铃型截面钢管混凝土柱进行极限承载力分析,结果表明本文分析结果与试验数据吻合很好,验证了本文提出的分析方法和程序的可靠性和准确性.并通过对哑铃型截面钢管混凝土柱的参数对比分析,得出了长细比与极限承载力的关系曲线.

关键词: 哑铃型截面钢管混凝土；极限承载力；弹塑性分析；

Abstract: In the paper,according to the principle of the non-linear FEM,based on the fiber model of beam structure and the geometric and material non-linearity of the CFST structures,an approach is presented for the ultimate load capacity analysis of CFST structures with dumbbell sections.Then the limit loads of CFST columns with dumbbell section are computed,and the results verify the validity and accuracy of the proposed method.With the comparison of the limit loads of CFST columns under various influential parameters,slender proportionlimit load curves are obtained.

Key words: concrete-filled steeltubewith dumbbell sections； ultimate load； elasto-plastic analysis；

王卫琴；陈宇文； . 哑铃型钢管混凝土柱的面内弹塑性分析[J]. 广东工业大学学报, 2006, 23(3): 62-66.

WANG Wei-qin~(1),CHEN Yu-wen~(2). The Elasto-plastic In-plane Ultimate Load Analysis for CFST Structures[J]. Journal of Guangdong University of Technology, 2006, 23(3): 62-66.

参考文献

[1] 颜全胜,王危页,邹巧鸿. 钢管混凝土受压构件的弹塑性承载力分析[J]. 郑州大学学报(工学版). 2003(02)

[2] 陈宝春,黄福云,肖泽荣. 钢管混凝土哑铃型短柱极限承载力的等效单圆管算法[J]. 公路交通科技. 2004(06)

[1] 王元汉等编著.有限元法基础与程序设计[M]. 华南理工大学出版社, 2001

[2] 过镇海,时旭东编著.钢筋混凝土原理和分析[M]. 清华大学出版社, 2003

[1] Ken ji Sak ino,H iroyuk i Nakahara,Shosuke Morino,et al.Behavior of centrally loaded concrete-filled steel-tube-Short columns. Journal of Structural Engineering (ASCE) . 2004

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