梁腹板开洞梁柱节点的非线性分析
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摘要
腹板开圆形洞口节点是一种新型削弱型节点。论文利用有限元软件Ansys对若干组腹板开圆形洞口节点进行了非线性有限元分析,研究了腹板开孔参数对节点的极限承载力、延性系数及耗能系数的影响,通过不同开孔参数对节点力学性能的分析比较,结果证明,通过合理设计,腹板开圆形洞口削弱型节点作为一种新型抗震节点具有较大的塑性变形能力和耗能能力。
The connection with circular opening is a new type of weakened node.in this paper,the nonlinear finite analysis of a new type beam-to-column connection with circular opening is carried out by Finite Element Program Ansys.The influence of the opening parameter on ultimate bearing capacity,ductility factor and energy dissipation coefficient of connections are revealed.The mechanical performance of different opening parameter connections are compared.The results indicate that the beam-to-column connections with circular opening have large plastic deformation capacity and energy dissipation capacity through reasonable design.
The connection with circular opening is a new type of weakened node.in this paper,the nonlinear finite analysis of a new type beam-to-column connection with circular opening is carried out by Finite Element Program Ansys.The influence of the opening parameter on ultimate bearing capacity,ductility factor and energy dissipation coefficient of connections are revealed.The mechanical performance of different opening parameter connections are compared.The results indicate that the beam-to-column connections with circular opening have large plastic deformation capacity and energy dissipation capacity through reasonable design.
引文
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[5]王新敏.Ansys工程结构数值分析[M].北京:人民交通出版社,2007
[6]郁有升,钢框架梁翼缘削弱性梁节点的试验研究及理论分析[D].西安:西安建筑科技大学,2008.
[2]Duane K Miller.Lessons learned from the northridge earthquake[J].Engineering Structures,1998,20(4):249-260.
[3]陈亮,钢框架新型节点力学性能有限元分析[D].合肥:合肥工业大学,2007.
[4]樊宝峰,章梓茂,杨庆山,等.钢结构梁柱端板连接腹板开孔型节点的延性分析[J].工程力学,2009,26(3):140-147.
[5]王新敏.Ansys工程结构数值分析[M].北京:人民交通出版社,2007
[6]郁有升,钢框架梁翼缘削弱性梁节点的试验研究及理论分析[D].西安:西安建筑科技大学,2008.