钢管混凝土柱-钢筋混凝土环梁节点抗震性能的有限元模拟

英文篇名：Finite element simulation on seismic behavior of Concrete-filled steel tube-reinforced concrete ring beam joint
中文刊名：安徽建筑工业学院学报(自然科学版)
英文刊名：Journal of Anhui Institute of Architecture & Industry(Natural Science)
作者：孙丙友 ; 刘一华
英文作者：SUN Bing-you ; LIU Yi-hua(College of Civil Engineering and Architecture ; Hefei University of Technology ; Hefei 230009 ; China)
中文关键词：钢管混凝土 ; 钢筋混凝土 ; 有限元 ; 非线性 ; 滞回曲线
英文关键词：Concrete-filled steel tube ; Reinforced concrete ; Finite element method ; Non-linearity ; Hysteresis loop
出版日期：2008-02-15
机构：合肥工业大学土木建筑工程学院,合肥工业大学土木建筑工程学院合肥230009,合肥230009
年：2008
期：01
出版单位：安徽建筑工业学院学报(自然科学版)

摘要

运用有限元软件ANSYS对文献[1]中的钢管混凝土柱-环梁节点抗震性能试验模型进行了数值模拟。由于钢管混凝土与钢筋混凝土的非线性很高,收敛困难,为此本文对钢管使用SOLID45单元,对混凝土使用SOLID65单元,混凝土与钢管的接触面则使用COMBIN39弹簧单元。模拟结果中给出了混凝土的开裂位置、钢筋框架中的应力以及荷载与柱转角的滞回曲线,这些结果与试验结果基本吻合。
The joint specimen of the concrete-filled steel tube column-reinforced concrete ring beam in literature [1] is simulated by the ANSYS finite element software in this paper.Because of the high non-linearity of the concrete-filled steel tube and the reinforce concrete,it is difficult to restrain in the finite element analysis.Solid45 unit is used to simulate the steel pipe,solid65 unit to the concrete and combin39 spring unit to the contact between concrete and steel pipe.The cracking position in the concrete,the stresses of reinforced framework,as well as the load-rotation angle hysteresis loops are obtained.These simulative results coincide with the experiment ones.

引文

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