跨度16m通用设计预应力梁用于准高速线路的分析

Dynamic Analysis for Span Length 16m Prestressed Concrete Bridge Using on the Quasi-rapid Transit Railway Line

广深线原有多孔距度16m的预应力梁。基于实测轨面不平顺。按车桥综合动力体系，本文分析了该线改建成车速为160km/h的准高速线路后桥梁及车辆竖向、横向的动力位移和舒适度。文本建议冲击系数取1.20，桥梁横向振幅为0.92～1.13mm，车辆抗脱轨安全及舒适度能满足要求。

on the Guang-shen railraod, there are more than 100 span length 16m prestrssed comcrete beams. In this paper, the dynamic analysis of the vehicle-bridge system of the proposed 160 km/h rapid transit railway line is offered. It is suggested that under the quasi-rapid transit train loading, the dynamic coefficient of the bridge is 1.20 and the lateral amplitude of the bridge is 0.92-1.13 mm. The comfort criteria at the driver room is permissible.