列车运行引起建筑结构振动分析  

Vibrations of complex structure induced by running train

作　　者：唐俊峰[1] 郭向荣[1] 邓子铭[1] 周涛[1] 

机构地区：[1]中南大学土木工程学院,湖南长沙410075

出　　处：《铁道科学与工程学报》2011年第3期7-12,共6页Journal of Railway Science and Engineering

摘　　要：针对武广客运专线新长沙站,建立了列车-桥梁和桥梁-站房2个力学计算子模型,通过对列车-桥梁动力相互作用进行分析计算,得出行驶列车作用在桥梁上轨道各节点的荷载时程,将这些荷载作为外部激励,作用在桥梁-站房结构力学计算子模型上进行时程分析,计算候车大厅楼板的振动响应,从楼面响应最大值、楼面响应沿横轨向分布、典型响应时程等几个方面进行分析,给出了计算结论和舒适度评价结果。Aiming at new Changsha station on Wuhan-Guangzhou passenger special line,the train-bridge sub-model and bridge-station sub-model were established.Through analyses and calculations for the train bridge dynamic interactions,the load time historys acting on the nodes of track beam by running train were obtained,then take the loads as the external excitation acting on the bridge-station sub-model for the time history analysis.Detailed vibrations analysis of waiting room＇s floor was presented on the following aspect including the maximum response in the floor,the distributing form of response in the transverse orientation,classical response history etc,from which some valuable conclusions were obtained.

关 键 词：高速列车 站房结构 动力响应 振动分析 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]