| 钢桁梁受损节点加固后力学性能分析 |
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| 引用本文： | 陈惟珍,刘学,李锦刚.钢桁梁受损节点加固后力学性能分析[J].中南公路工程,2004,29(1):16-20. |
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| 作者姓名： | 陈惟珍 刘学 李锦刚 |
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| 作者单位： | 同济大学桥梁工程系，同济大学桥梁工程系，湖南省交通规划勘察设计院 上海 200092，上海 200092，湖南长沙 410011 |
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| 摘 要： | 以某钢桁梁桥为工程背景,详细介绍了受损节点加固后力学性能分析的方法和结果。首先按照规范验算撕破强度,然后根据实桥荷载试验结果,建立并修正ANSYS三维实体有限元分析模型。对在各种机车类型,尤其是D型机车作用下的节点板受力状况进行了详细分析,根据各种工况下的分析结果,制定该桥当前通行条件。
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| 关 键 词： | 铆接钢桁梁 节点板 有限元分析 D型机车 |
| 文章编号： | 1002-1205(2004)01-0016-05 |
| 修稿时间： | 2003年11月22 |
Mechanical Analysis for Repaired Panel Point of a Riveted Truss Girder |
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| CHEN Wei-zhen,LIU Xue,LI Jin-gang.Mechanical Analysis for Repaired Panel Point of a Riveted Truss Girder[J].Central South Highway Engineering,2004,29(1):16-20. |
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| Authors: | CHEN Wei-zhen LIU Xue LI Jin-gang |
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| Institution: | CHEN Wei-zhen~1,LIU Xue~1,LI Jin-gang~2 |
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| Abstract: | Based on the safety evaluation of a riveted truss bridge, which has been damaged and then reinforced, methods and conclusions of a mechanical analysis for a panel point, are presented in detail. The tearing resistance of the panel point was first examined in accordance with the specification. With in situ test data on the panel, a 3D FE mechanics model with ANSYS was then established and modified. In the analysis, stress-strain states of the panel on the truss girder were simulated under various trainloads, in particular D type trainloads. Finally, the present traffic control of the girder is determined. |
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| Keywords: | riveted truss girder panel point finite element analysis D type trainload |
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