关于铁路既有中小跨度桥梁在160km/h列车作用下竖向刚度的分析研究  

Analysis and Study on the Vertical Rigidity of Existing Railway Bridges with Small and Medium-sized Spans under the Action of Trains at 160 km/h

作　　者：杨孚衡[1] 柯在田[1] 张煅[1] 

机构地区：[1]铁道部科学研究院铁道建筑研究所

出　　处：《中国铁路》2001年第6期20-22,共3页China Railway

摘　　要：分折了我国铁路设计规范中规定的在中-活载作用下既有铁路桥梁竖向刚度的现状、及在不同桥梁跨度条件下各种荷载工况和中-活载的比例关系、结果表明中-活载能满足速度160km/h新建铁路桥梁设计要求。The present situation of vertical rigidity tor the existing railway bridges under the action of Zhong-live load as stipulated in the railway design specifications in China and the proportional relationship between various load working conditions and Zhong-live load are analyzed. The result shows that Zhong-live load can meet the requirements for the bridge design of the newly built railways at the speed of 160 km/h.

关 键 词：铁路桥梁 设计规范 桥梁荷载 竖向刚度 乘坐舒适度 列车作用 

分 类 号：U448.13[建筑科学—桥梁与隧道工程] U442.5[交通运输工程—道路与铁道工程]