| 半刚性节点钢框架系统的强度可靠性分析 |
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| 引用本文： | 侯颖,霍达,滕海文,张杨.半刚性节点钢框架系统的强度可靠性分析[J].北京工业大学学报,2010,36(11). |
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| 作者姓名： | 侯颖 霍达 滕海文 张杨 |
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| 作者单位： | 北京工业大学建筑工程学院,北京,100124;北京工业大学建筑工程学院,北京,100124;北京工业大学建筑工程学院,北京,100124;北京工业大学建筑工程学院,北京,100124 |
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| 摘 要： | 为了更为准确地评估钢框架系统可靠性,将实际的半刚性连接节点视为转动弹簧单元,推导了半刚性梁元节点失效的减缩刚度矩阵和等效节点力公式.采用分枝限界法研究了半刚接框架的系统强度可靠性,并与刚接和铰接结构进行了对比.算例表明,含有半刚性节点的主要失效路径和失效概率发生了较大变化,其系统可靠性介于刚接与铰接结构之间,节点刚度对钢框架系统可靠性的影响较大.
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| 关 键 词： | 半刚性节点 钢框架 强度可靠性 分枝限界 |
Analysis of Strength Reliability of Semi-rigid Steel Frame |
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| HOU Ying,HUO Da,TENG Hai-weng,ZHANG Yang.Analysis of Strength Reliability of Semi-rigid Steel Frame[J].Journal of Beijing Polytechnic University,2010,36(11). |
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| Authors: | HOU Ying HUO Da TENG Hai-weng ZHANG Yang |
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| Affiliation: | HOU Ying,HUO Da,TENG Hai-weng,ZHANG Yang(College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | To evaluate more exact system reliability of steel frame,taking the actual semi-rigid joint as a rotational spring element,formulae of the reduced stiffness matrix and the equivalent nodal force of beam element with semi-rigid joints are deduced.The method of branch boundary is adopted.The strength reliability of the semi-rigid steel frame system is studied and compared with that of fully-rigid and pined connections.The example indicates that there are real differences in the main failure path,its failure p... |
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| Keywords: | semi-rigid joints steel frame strength reliability branch boundary |
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