| 既有线200 km/h提速客货共线直线段轨道的动力特性 |
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| 引用本文： | 傅鹤林,尹光明,郭峰,陈芬,宁明哲. 既有线200 km/h提速客货共线直线段轨道的动力特性[J]. 防灾减灾工程学报, 2009, 29(2) |
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| 作者姓名： | 傅鹤林 尹光明 郭峰 陈芬 宁明哲 |
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| 作者单位： | 中南大学土木建筑学院,长沙,410075;中南大学土木建筑学院,长沙,410075;广州铁路集团公司株洲工务段,湖南,株洲,412000 |
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| 基金项目： | 广州铁路集团科技项目 |
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| 摘 要： | 既有线提速是高速铁路发展的重要方向之一。本文主要对轨道路基在列车荷载作用下的动力响应规律进行了研究。首先,建立轨道系统在移动荷载作用下的动力响应理论分析模型,该模型将轨道结构视为连续支承欧拉梁,对ANSYS软件进行二次开发,实现了模型的数值分析;然后,建立直线段轨道数值分析模型,利用该模型分析了荷载速度、载重、不平顺波长、不平顺波深对既有线路提速200 km/h客货共线直线段钢轨、轨枕的竖向位移及竖向加速度的影响。可为制定新的铁路养护技术规范提供技术参考。
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| 关 键 词： | 直线段 轨道动力特性 客货共线 提速200 km/h |
Dynamic Performance of Rectilinear Segment in Existed Railway Line with Combined Trucks at Speed of 200 km/h |
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| FU He-lin,YIN Guang-ming,GUO Feng,CHEN Fen,NING Ming-zhe. Dynamic Performance of Rectilinear Segment in Existed Railway Line with Combined Trucks at Speed of 200 km/h[J]. Journal of Disaster Prevention and Mitigation Engineering, 2009, 29(2) |
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| Authors: | FU He-lin YIN Guang-ming GUO Feng CHEN Fen NING Ming-zhe |
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| Affiliation: | FU He-lin~1,YIN Guang-ming~(1,2),GUO Feng~1,CHEN Fen~1,NING Ming-zhe~1 (1.Civil Engineering College,Central South University,Changsha 410075,China,2.Zhuzhou Engineering Division,Guangzgou Railway Bureau,Zhuzhou 412000,China) |
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| Abstract: | The modification of old lines is one of important trends of the development of express railways. The dynamic performance of roadbed of railways under the loads of trains is studied in this paper.First,a theoretical model of dynamic response of the track system under moving loads is formulated with the structure of the track system considered as a continuously supported Euler's beam to implement its numerical analysis through the secondary development of the ANSYS software;then,a numerical model of the recti... |
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| Keywords: | rectilinear segment dynamic performance combined truck speed-up to 200 km/h |
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