武汉站轨道箱型梁车致振动响应研究

PDF(1323 KB)

振动与冲击 ›› 2012, Vol. 31 ›› Issue (8) : 186-190.

论文

武汉站轨道箱型梁车致振动响应研究

谢伟平，徐薇

作者信息 +

vehicle-induced vibration responses of a rail box girder in Wuhan station

Xie Wei-ping , Xu Wei

Author information +

文章历史 +

摘要

以建桥结合武广客运专线武汉站为工程背景，针对车致振动可能引起的舒适度问题进行前期列车进出站引起的轨道箱型梁振动响应研究。建立了轨道梁结构的有限元分析模型和基于舒适度研究的车致振动分析方法，通过数值研究考察了轨道梁的振动状况。进一步地通过环境振动和车致振动实测获取结构关键部位的振动响应，并与理论分析结果进行了对比研究。结果表明，前期建立的分析模型正确，计算分析方法可靠，可以有效地反映结构的车致振动响应，为后续上部结构振动舒适度评价奠定基础。相关分析方法可为今后同类建桥结合大型车站结构桥梁部分的振动分析所采用。

Abstract

The investigation on vehicle-induced dynamic responses of box girder for comfort evaluation is actively carried out in this study by taking the Wuhan station as engineering background. The finite element model and analytical approach for the dynamic responses of the box girder for comfort evaluation are established. Furthermore, the dynamic responses of the box girder are examined through numerical simulation. The field measurement of the actual structure are carried out to obtain the dynamic responses of the crucial parts and thereby compared with those from numerical analysis. The observations demonstrate that the analytical model and approach utilized in this study is reliable and accurate for evaluating the vehicle-induced dynamic responses of the box girder, and structure vibration comfort can be evaluated. The analytical approach can be adopted for the analysis of similar structures in the future.

导出引用

谢伟平;徐薇. 武汉站轨道箱型梁车致振动响应研究[J]. 振动与冲击, 2012, 31(8): 186-190

Xie Wei-ping;Xu Wei. vehicle-induced vibration responses of a rail box girder in Wuhan station [J]. Journal of Vibration and Shock, 2012, 31(8): 186-190