| 方钢管混凝土柱-钢梁外加强环节点承载力与变形的有限元分析 |
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| 引用本文： | 俞家欢,孙开天,贾还来,李春雨.方钢管混凝土柱-钢梁外加强环节点承载力与变形的有限元分析[J].钢结构,2012,27(10):24-27. |
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| 作者姓名： | 俞家欢 孙开天 贾还来 李春雨 |
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| 作者单位： | 1. 沈阳建筑大学土木工程学院,沈阳,110168
2. 沈阳市市政工程养护管理处,沈阳,110005 |
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| 基金项目： | 国家科技支撑课题（2012BAJ16B00）. |
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| 摘 要： | 研究方钢管混凝土柱-钢梁外加强环式节点在单调荷载作用下的破坏机理和受力性能。通过有限元软件ANSYS对梁柱节点进行非线性有限元分析,构件最后破坏时,节点区的钢管壁产生了严重的扭曲变形,模型的实体单元遭到严重破坏。方钢管混凝土柱-钢梁外加强环式节点具有优良的刚度及耗能能力,加强环的设置有效地降低了节点区的应力集中。采用ANSYS有限元程序进行钢管混凝土节点非线性有限元分析是可行的。
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| 关 键 词： | 梁柱节点 钢管混凝土 有限元 非线性 |
FEM ANALYSIS OF THE BEARING LOAD AND DEFORMATION OF STEEL BEAM-TO-CFST COLUMN CONNECTIONS WITH REINFORCING RINGS |
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| Yu Jiahuan
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Sun Kaitian
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Jia Huanlai
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Li Chunyu.FEM ANALYSIS OF THE BEARING LOAD AND DEFORMATION OF STEEL BEAM-TO-CFST COLUMN CONNECTIONS WITH REINFORCING RINGS[J].Steel Construction,2012,27(10):24-27. |
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| Authors: | Yu Jiahuan Sun Kaitian Jia Huanlai Li Chunyu |
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| Affiliation: | Yu Jiahuan Sun Kaitian Jia Huanlai LiChunyu (1. Institute of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China 2. Shenyang Urban Engineering Curing Management Bureau, Shenyang 110005, China) |
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| Abstract: | This paper is to study the fracture mechanism and mechanical property of the steel beam-lo CFST column connections under monotonic load. The ANSYS software is utilized to perform the non-linear finite element method analysis. Distortion occured around the wall of steel tubes and concrete also collapsed at the final loading stage. It is shown this kind of beam-to-column connection possesses of strong stiffness and high dissipation of energy. Meanwhile the erection of the reinforcing rings can obviously decrease the stress concentration. Using ANSYS finite element program to conduct the CFST nodes non-linear finite element analysis is feasible. |
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| Keywords: | beam-column connection steel tube confined concrete finite element non linear |
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