| 节点轴向刚度对方管空间三角形桁架静力性能的影响 |
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| 引用本文： | 武振宇,何小辉.节点轴向刚度对方管空间三角形桁架静力性能的影响[J].建筑钢结构进展,2011,13(6). |
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| 作者姓名： | 武振宇 何小辉 |
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| 作者单位： | 哈尔滨工业大学土木工程学院,哈尔滨,150090 |
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| 基金项目： | 《钢结构设计规范》国家标准管理组科研专项基金(GB500172010-09) |
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| 摘 要： | 为研究节点轴向刚度对方管空间三角形桁架静力性能的影响,使其设计建立在更合理的理论分析基础之上,采用ANSYS软件对方管空间三角形桁架受力性能进行了分析。采用壳单元建立了可考虑节点刚度的分析模型,将其分析结果与不考虑节点轴向刚度的分析模型进行了对比。不考虑节点轴向刚度的分析模型考虑了节点为刚接、铰接及弦杆连续腹杆与之铰接3种情况。对比分析结果表明,节点轴向刚度对桁架整体变形影响较大,对桁架内力分布的影响很小。为便于应用,提出了能够很好地模拟节点轴向刚度影响的方管结构简化分析模型(SIM)。建议在计算方管空间三角形桁架变形时考虑节点轴向刚度的影响。
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| 关 键 词： | 方钢管结构 节点刚度 空间三角形桁架 简化模型 静力性能 |
Effect of Axial Stiffness of Joints on Static Behavior of Spatial Triangular SHS Trusses |
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| WU Zhen-yu,HE Xiao-hui.Effect of Axial Stiffness of Joints on Static Behavior of Spatial Triangular SHS Trusses[J].Progress in Steel Building Structures,2011,13(6). |
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| Authors: | WU Zhen-yu HE Xiao-hui |
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| Affiliation: | WU Zhen-yu,HE Xiao-hui(School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China) |
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| Abstract: | In order to study the effect of the axial stiffness of the joints on the static behavior of the spatial triangular SHS(square hollow section)truss,and to design SHS structures more rationally,the analyses on the mechanical behavior of the spatial triangular SHS truss were conducted.FEA model considering the joint axial stiffness were established using shell elements.The results got by this model were compared with that from other analysis models without considering the effect of the joint axial stiffness,in... |
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| Keywords: | SHS structure joint stiffness spatial triangular truss simplified model static behavior |
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