摘要
借助ANSYS有限元分析软件,对5个"梁贯通"式RCS梁柱中节点进行三维非线性有限元分析,并和试验结果相比较。分析中考虑材料非线性以及混凝土的开裂与压碎。对单元类型的选取、钢和混凝土材料模型的定义、整体有限元模型的建立、施加荷载、设置求解选项并求解等数值模拟技术进行了深入的研究。研究表明,通过合理设置参数,ANSYS有限元软件能够模拟RCS梁柱节点在静力荷载作用下的性能,并和试验结果吻合较好。
The nonlinear three-dimensional finite element analysis of five through-beam-type interior RCS beam-column connections is performed by the finite element software ANSYS and the analytical results are compared with experimental results. The effect of material nonlinear constitutive relations and concrete cracking and crushing is all taken into account. A series of numerical simulation technologies is studied, such as selecting element type, defining material model of steel and concrete, establishing global finite element model with discrete reinforced bars elements and stirrups elements, applying loads to the specimens, and setting solution controls option and solving. The investigation shows that ANSYS finite element software may simulate the behavior of RCS beam-column connections under static loading through reasonably selecting parameters, and the analytical results agree well with experimental ones.
出处
《工程力学》
EI
CSCD
北大核心
2009年第1期37-42,48,共7页
Engineering Mechanics
基金
校人才基金项目(RC0813)
关键词
组合结构
RCS框架
梁柱中节点
钢梁
钢筋混凝土柱
非线性有限元
composite structures
RCS frames
interior beam-column connections
steel beams
reinforced concrete columns
nonlinear finite element
