| 高速列车运行安全性与桥梁防撞墙受力分析 |
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| 引用本文： | 向俊,龚凯,毛建红,曾庆元.高速列车运行安全性与桥梁防撞墙受力分析[J].铁道学报,2011(12):83-87. |
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| 作者姓名： | 向俊 龚凯 毛建红 曾庆元 |
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| 作者单位： | 中南大学土木工程学院; |
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| 基金项目： | 国家重点基础研究发展计划(2007CB714706); 国家自然科学基金项目(50678176); 高等学校博士学科点专项科研基金项目(20100162110022); 教育部新世纪优秀人才支持计划(NCET-07-0866); 牵引动力国家重点实验室开放课题(TPL0901) |
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| 摘 要： | 根据列车脱轨能量随机分析理论,实现高速铁路无砟轨道桥梁上的高速列车脱轨全过程分析,计算高速列车抗脱轨安全系数。在不考虑列车纵向冲击,仅考虑列车脱轨摇摆力作用下,推导出高速铁路桥梁防撞墙受力计算公式。结果表明:高速列车在设计车速下的抗脱轨安全系数为2.0以上,脱轨摇摆力为630kN,防撞墙所受到的撞击力为33 002.4kN。鉴于高速铁路无砟轨道桥梁上的高速列车运行安全性完全有保障,且即使有意外情况发生,防撞墙亦无法防止列车脱轨后冲出桥面,因此,建议取消防撞墙。
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| 关 键 词： | 高速铁路桥梁 防撞墙 撞击力 脱轨摇摆力 高速列车 |
Analysis on the Running Safety of High-speed Train and the Force of Bridge Collision-proof Wall |
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| XIANG Jun,GONG Kai,MAO Jian-hong,ZENG Qing-yuan.Analysis on the Running Safety of High-speed Train and the Force of Bridge Collision-proof Wall[J].Journal of the China railway Society,2011(12):83-87. |
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| Authors: | XIANG Jun GONG Kai MAO Jian-hong ZENG Qing-yuan |
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| Institution: | XIANG Jun,GONG Kai,MAO Jian-hong,ZENG Qing-yuan (School of Civil Engineering and Architecture,Central South University,Changsha 410075,China) |
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| Abstract: | According to the theory of random energy analysis for train derailment,the whole process of high-speed train derailment on the high-speed ballastless railway bridge is analyzed and the safety coefficient for resisting derailment of high-speed trains is calculated as well.The force calculating formula of the high-speed railway bridge collision-proof wall is derived taking into consideration the situation when the train is under the action of only derailment swaying forces except for longitudinal impacts.The ... |
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| Keywords: | high-speed railway bridge collision-proof wall impact force derailment swaying force high-speed trains |
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