| 75kg／m钢轨12号菱形交分道岔强度及轨道刚度分析 |
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| 引用本文： | 赵卫华,王平,陈小平.75kg／m钢轨12号菱形交分道岔强度及轨道刚度分析[J].交通运输工程与信息学报,2010,8(2):70-74. |
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| 作者姓名： | 赵卫华 王平 陈小平 |
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| 作者单位： | 西南交通大学,土木工程学院,成都610031 |
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| 摘 要： | 运用有限单元法建模，分析扣件刚度对菱形交分道岔心轨和尖轨强度的影响以及沟槽开设方式对板下胶垫应力的影响，同时研究准静态轮载作用下轨道变形的合理性。结果表明，尖轨和心轨的强度及板下胶垫的强度均能够满足使用要求；菱形交分轨道刚度的均匀性能满足列车运行速度在120km／h及以下的使用要求。
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| 关 键 词： | 菱形交分道岔 道岔强度 轨道刚度 有限单元法 |
Analysis on the Track Stiffness and Intensity of a No.12 Diamond Crossing Turnout on 75 kg/m Rail |
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| ZHAO Wei-hua,WANG Ping,CHEN Xiao-ping.Analysis on the Track Stiffness and Intensity of a No.12 Diamond Crossing Turnout on 75 kg/m Rail[J].Journal of Transportation Engineering and Information,2010,8(2):70-74. |
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| Authors: | ZHAO Wei-hua WANG Ping CHEN Xiao-ping |
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| Institution: | ( College of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China) |
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| Abstract: | A model was built with the finite element method to analyze the influence of the fastener stiffness on the nose rail and switch rail intensity, and the groove system, influence on the cushion stress under the track slab. Meanwhile, the rationality of the track deformation under the quasi-static wheel load was studied. Results showed that the intensity of the nose rail, switchrail and cushion could satisfy the operation requirements and so the uniformity of track stiffness when the train running speed was within 120km/h. |
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| Keywords: | Diamond crossing turnout turnout intensity track stiffness finite element method |
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