高速铁路简支梁桥的竖向共振现象  

VERTICAL RESONANCE PHENOMENON OF SIMPLY SUPPORTED GIRDER BRIDGES ON HIGH-SPEED RAILWAY

作　　者：苏木标[1] 李建中[2] 梁志广[1] 

机构地区：[1]石家庄铁道学院,石家庄050043 [2]同济大学,上海200092

出　　处：《工程力学》2001年第5期84-94,共11页Engineering Mechanics

基　　金：铁道部科技发展计划资助项目(96G19-A)

摘　　要：本文采用车－桥系统计算模型，对高速铁路多种不同类型简支梁桥可能发生的竖向共振现象进行了研究，给出了各种不同类型简支梁桥发生竖向共振现象时所对应列车速度，分析了不同的跨度对桥梁竖向共振峰值的影响，并就高速铁路简支梁桥如何避免和抑制桥梁竖向共振现象的发生和发展进行了初步的分析。The vertical resonance phenomenon which may take place for many kinds of different simply supported girder bridges on high-speed railway is studied with a vehicle-bridge interaction system model. The train's critical velocities are obtained when the vertical resonant vibration occurs. The influence of different spans upon the peak value of the vertical resonant vibration of the bridges is investigated. The precautions against the vertical resonance phenomenon of the bridges are addressed.

关 键 词：高速铁路 简支梁桥 共振现象 列车速度 

分 类 号：U448.13[建筑科学—桥梁与隧道工程]