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[1]石启印,陆鸣,李爱群,等.钢-混凝土组合梁与钢管混凝土柱节点的非线性有限元分析[J].建筑科学与工程学报,2009,26(04):73-79.
　SHI Qi-yin,LU Ming,LI Ai-qun,et al.Nonlinear Finite Element Analysis of Steel-concrete Composite Beam to Concrete-filled Steel Tubular Column Joints[J].Journal of Architecture and Civil Engineering,2009,26(04):73-79.
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钢-混凝土组合梁与钢管混凝土柱节点的非线性有限元分析(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年04期
页码:
73-79
栏目:
出版日期:
2009-12-20

文章信息/Info

Title:
Nonlinear Finite Element Analysis of Steel-concrete Composite Beam to Concrete-filled Steel Tubular Column Joints
作者:
石启印1,陆鸣1,李爱群2,秦卫红2
1.江苏大学土木工程系,江苏镇江212013; 2.东南大学混凝土及预应力混凝土结构教育部重点实验室,江苏南京210096
Author(s):
SHI Qi-yin1, LU Ming1, LI Ai-qun2, QIN Wei-hong2
1. Department of Civil Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China; 2. Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, Jiangsu, China
关键词:
钢-混凝土组合梁;  钢管混凝土柱;  节点;  非线性有限元分析;  滞回性能;  本构关系
Keywords:
steel-concrete composite beam;  concrete-filled steel tubular column;  joint;  nonlinear finite element analysis;  hysteretic behavior;  constitutive relation
分类号:
TU398
DOI:
-
文献标志码:
A
摘要:
以简化的Varma模型作为钢材的循环本构关系模型,建立了2类钢管混凝土柱与组合梁连接节点——梁钢筋贯通钢管节点和梁钢筋与上加强环焊接连接节点的三维非线性分析模型,并采用有限元软件ANSYS对其在低周反复荷载作用下的滞回性能进行了非线性分析。结果表明:由有限元模型得到的低周反复荷载作用下的滞回曲线及骨架曲线与试验所得的结果吻合较好,但在屈服荷载后差异较大; 如能恰当地选择材料的本构关系、计算模型和破坏准则,则能够采用有限元模型准确地预测上述2类节点的弹塑性行为和整体抗震性能,并用于节点滞回性能的非线性参数分析。
Abstract:
The cyclic constitutive relation of steel was proposed, which is a simplified Varma's model. Nonlinear 3-D finite element models(FEM)of two kinds of joints, namely steel bars headed through the pipe joint and steel bars welded with the upper strengthened ring joint, under the cyclic loading by using finite element software ANSYS were established. The nonlinear analysis of the above two kinds of concrete-filled steel tubular column to steel-concrete composite beam joints was conducted. The results show that the hysteretic curves and skeleton curves from FEM under low-cycle reversed loading agree well with those of the cyclic loading tests. If the material constitutive relation, calculation model and failure criterion can be selected suitably, the FEM can accurately predict the overall seismic behavior and the inelastic performance of these two kinds of joints, and can be used to conduct the nonlinear parameter analysis of the joints hysteretic behavior.

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备注/Memo

备注/Memo:
收稿日期:2009-05-26
基金项目:江苏省自然科学基金项目(BK2004064); 江苏省博士后基金项目(070100813)
作者简介:石启印(1964-),男,陕西渭南人,教授,工学博士,博士后,E-mail:shiqiyin@ujs.edu.cn。
更新日期/Last Update: 2009-12-20