Dynamic Interaction between Beam and Track of Railway Cable-Stayed Bridge under Train Braking

被引：2
|
作者：
Yan Y. [1 ]
Wu D. [1 ]
Li Q. [1 ]
机构：
[1] College of Civil Engineering, Tongji University, Shanghai
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2019年 / 40卷 / 01期
关键词：
Beam-track interaction; Braking force; Cable-stayed bridge; Dynamic analysis; Structural system;
D O I：
10.3969/j.issn.1001-4632.2019.01.05
中图分类号：
学科分类号：
摘要：
The finite element model for the beam-track interaction of a long-span railway cable-stayed bridge was established by using ANSYS software. The dynamic response of beam and track under train braking force was analyzed. The dynamic magnification effects of beam-track relative displacement and additional rail braking force were studied, and the influence of such parameters as braking force position, braking distance and the structural system of cable-stayed bridge on beam-track dynamic response was analyzed. Results show that, in the process of train braking, the peak value of the additional force of rail braking occurs at the beam-ends of cable-stayed bridge. The dynamic magnification effect of cable-stayed bridge under train braking is not obvious. The braking force position and the structural system of cable-stayed bridge have great influence on the peak value of beam-track dynamic response, while the braking distance has little effect on the calculation results of dynamic response. © 2019, Editorial Department of China Railway Science. All right reserved.
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页码：31 / 38
页数：7
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