| 车辆-轨道-桥梁空间耦合振动引起的环境振动 |
| |
| 引用本文： | 张媛,管友海,李静.车辆-轨道-桥梁空间耦合振动引起的环境振动[J].青岛大学学报(工程技术版),2009,24(2):72-76. |
| |
| 作者姓名： | 张媛 管友海 李静 |
| |
| 作者单位： | 中国石油大学,华东,储运与建筑工程学院,山东,青岛,266555 |
| |
| 摘 要： | 首先建立了车辆-无碴轨道-桥梁系统空间耦合振动模型,通过随机振动分析得到桥墩墩底反力,然后建立了土体-建筑物的三维有限元模型,并将以上得到的墩底反力作为土体-建筑物三维有限元模型的外部激励。分析结果表明,周围土体振动强度随距离的增加而减小,且都存在反弹区 周围建筑物的振动强度随桥墩距离的增大而减小,且在建筑物低层横向和竖向振动相差不大,但是到了高层处横向振动明显大于竖向振动。
|
| 关 键 词： | 城市轨道交通 车辆-轨道-桥梁系统 空间耦合振动 环境振动 三维有限元模型 |
Ambient Vibration Induced by Spatial Coupling Vibration of Vehicle-Track-Bridge System |
| |
| ZHANG Yuan,GUAN You-hai,LI Jing.Ambient Vibration Induced by Spatial Coupling Vibration of Vehicle-Track-Bridge System[J].Journal of Qingdao University(Engineering & Technology Edition),2009,24(2):72-76. |
| |
| Authors: | ZHANG Yuan GUAN You-hai LI Jing |
| |
| Affiliation: | (College of Architecture ＆ Storage Engineering, China University of Petroleum (Huadong), Qingdao 266555, China) |
| |
| Abstract: | In this paper,a model for spatial coupled vibration of vehicle-ballastless track-bridge system is established firstly.The reactions at the bottom of bridge piers are obtained by random vibration analysis.A three-dimension finite element model of soil-building is established.The reactions at the bottom of bridge piers are taken as the excitation of the three-dimensional model of soil-building.Through numerical analysis,it shows that the vibration of soil reduces as the distance increases;the vibration of bui... |
| |
| Keywords: | urban rail transmit vehicle-track-bridge system spatial coupled vibration ambient vibration three-dimension finite element model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
