城际铁路“桥建合一”车站车致振动特性及舒适度评价研究

STUDY ON VIBRATION CHARACTERISTICS AND COMFORT LEVEL EVALUATION CITY RAILWAY"BRIDGE CONSTRUCTION INTEGRATED"STATION OF INTER

以某城际铁路高架车站“竹料站”为背景,基于车辆-轨道-车站有限元动力仿真分析模型,对高架车站主体结构进行模态分析得到其各阶自振频率及振型特征;深入分析了列车正线到站、不同车速正线越行过站、不同车速正线会车过站工况下的高架车站车致振动特性;采用计权加速度均方根对不同行车工况下站厅层人体舒适度进行评价。

Based on the finite element dynamic simulation and analysis model of the vehicle-track-station,the modal analysis of the main structure of the elevated station was carried out to obtain the natural frequency and mode shape characteristics of each order of the elevated railway station based on the finite element dynamic simulation analysis model.The vibration characteristics of elevated stations under the conditions of train line arrival,different speeds crossing stations,and different speeds of trains passing through stations are analyzed in depth.The weighted acceleration root mean square is used to evaluate the human comfort of the station hall layer under different driving conditions.