| K形矩管外套强化节点承载力数值分析 |
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| 引用本文： | 闫雁军,余志祥,许浒,赵世春.K形矩管外套强化节点承载力数值分析[J].四川建筑科学研究,2010,36(4). |
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| 作者姓名： | 闫雁军 余志祥 许浒 赵世春 |
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| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031 |
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| 基金项目： | 西南交通大学科研基金资助项目，西南交通大学博士生创新基金资助项目 |
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| 摘 要： | 矩管桁架在节点区域容易出现主管管壁的局部屈曲和撕裂,针对该问题的强化解决方式,结合某铁路客运站房钢结构工程,提出了矩管桁架节点局部强化的工艺力学性能问题.设计了总共112个数值分析模型,基于微动力阻尼非线性静力方法,分析了K形外套加强节点、无加强节点的力学性能,研究了外套加强的优越性;通过改变节点的设计参数τ,β,研究节点承载力性能的差异,给出外套管构造参数α,D取值的范围及其适用条件.数值分析结果表明,外套加强节点具有良好的工艺力学性能,可供工程设计参考.
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| 关 键 词： | 矩管桁架 K形节点 外套加强节点 工艺力学 |
Numerical analysis on bearing capacity about the outer sleeve K-joint of rectangular pipe truss |
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| YAN Yanjun,YU Zhixiang,XU Hu,ZHAO Shichun.Numerical analysis on bearing capacity about the outer sleeve K-joint of rectangular pipe truss[J].Building Science Research of Sichuan,2010,36(4). |
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| Authors: | YAN Yanjun YU Zhixiang XU Hu ZHAO Shichun |
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| Affiliation: | YAN Yanjun,YU Zhixiang,XU Hu,ZHAO Shichun(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Local buckling and tearing easily happen in the chord node region of regular truss pipe structure.According to the steel structure of the passenger project of a high-speed railway station,propose the question with the mechanical properties of tube nodes locally strengthened.Based on micro-dynamicdamping coefficient method,research the mechanical properties of 112 models including outer sleeve K-joints and non-strengthen nodes,then getting the conclusion that the outer sleeve node is better.On this basis,the... |
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| Keywords: | pipe truss K-joint outer sleeve node technological mechanics |
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