桥上无缝线路伸缩附加力计算的新方法 |
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引用本文: | 朱文珍,陈秀方,刘新建.桥上无缝线路伸缩附加力计算的新方法[J].石家庄铁道学院学报(社会科学版),2005(4):26. |
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作者姓名: | 朱文珍 陈秀方 刘新建 |
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作者单位: | [1]中南大学土木建筑学院,湖南长沙410075 [2]中铁隧道集团二处有限公司,北京101601 |
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基金项目: | 铁道部科技发展计划项目(2000G49-C1) |
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摘 要: | 用广义变分法来计算桥上无缝线路附加力,提出了研究桥上无缝线路附加力计算的新方法。基于已有的试验及计算结果,先假设钢轨伸缩附加力函数,由此得到钢轨位移及梁轨相对位移函数,再通过对梁轨体系总能量进行广义变分计算,建立起结构体系的平衡方程,最后编制相应的计算程序,得到了符合工程实际的计算结果。
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关 键 词: | 广义变分法 桥上无缝线路 高速铁路 |
修稿时间: | 2004/12/19 0:00:00 |
A New Method for Calculating Additional Expansion and Contraction Forces of CWR on Bridge |
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Authors: | Zhu Wenzhen Chen Xiufang Liu Xinjian |
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Institution: | 1. School of Civil Architecture of Zhongnan University, Changsha 410075, China; 2. The 2nd Company of China Railway Tunnel Group, Beijing 101601, China |
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Abstract: | The author applies generalized variational methods to calculate the additional expansion and contraction forces of CWR on bridge. A new method of studying on additional forces of CWR on bridge is presented. Based on former experiments and calculating resu |
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Keywords: | generalized variational method CWR on bridge high- speed railway |
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