铁道科学与工程学报2017，Vol.14Issue(6)：1241-1248,8.
主跨1120m铁路悬索桥风−车−桥耦合振动响应分析
Dynamic interaction analysis on wind-train-bridge system of long-span railway suspension bridge
摘要
Abstract
In order to study the dynamic responses of the railway suspension bridge under the action of running train exposed in the wind field, the geometric nonlinearity of long-span bridge was considered and a coupling wind-train-bridge model was established. A suspension bridge with a 1120 m main span was calculated. The maximum responses and the mechanism were analyzed in detail. The computed results prove that, the natural frequency of this long-span suspension bridge is very low and it is very sensitive to wind. Both lateral displacement, acceleration and vertical ones increase seriously with the wind velocity, and the coupling vibration between wind, train and bridge is easily to occur.关键词
大跨度悬索桥/风/列车/几何非线性/振动Key words
long-span suspension bridge/wind/train/geometric nonlinearity/vibration分类
建筑与水利引用本文复制引用
王少钦,马骎,任艳荣,杨谆..主跨1120m铁路悬索桥风−车−桥耦合振动响应分析[J].铁道科学与工程学报,2017,14(6):1241-1248,8.基金项目
国家自然科学基金资助项目(51508018,U1434205) （51508018,U1434205）
北京市教委科技资助项目(SQKM201610016015) （SQKM201610016015）
