基于风洞试验的杭州西站风致干扰效应研究  

Study on Wind-induced Interference Responses of Hangzhou West Railway Station Based on Wind Tunnel Test

作　　者：李庆[1] LI Qing(China Railway Siyuan Survey and Design Group Co.Ltd.,Wuhan Hubei 430063,China)

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《铁道建筑技术》2021年第10期26-29,58,共5页Railway Construction Technology

基　　金：中铁第四勘察设计院集团有限公司科技研发项目(2020K106)。

摘　　要：杭州西站综合交通枢纽包括大跨度火车站与周边高层建筑等,为研究周边高层建筑对火车站屋盖的干扰效应,采用刚性模型风洞试验测试得到在有无周边建筑情况下屋盖表面风荷载,进而对屋盖结构风致响应进行评估。研究结论:周边高层建筑对屋盖平均与均方根风荷载的干扰效应十分显著,特别是其均方根风荷载在高层建筑附近显著增加;其对屋盖平均和均方根位移响应干扰效应亦十分显著,大幅增大了屋盖的均方根位移响应。Hangzhou West Railway Station integrated transportation junction includes the long-span railway station and the surrounding tall buildings et al.In order to study the interference effects of the surrounding tall buildings to the station roof,the surface wind loads of the roof are measured under the condition of whether or not considering the surrounding tall buildings by using the rigid model wind tunnel tests.And then,the wind-induced responses to the roof structure are evaluated.The research conclusions are as follows:the interference effects of the surrounding tall buildings to the mean and root mean square wind loads of the roof is significant,especially the RMS wind loads of the roof near the tall buildings.The interference effects on the mean and RMS displacement responses of the roof is also significant,which greatly increase the RMS displacement responses of the roof.

关 键 词：大跨度屋盖结构 干扰效应 风洞试验 风荷载 风致响应 

分 类 号：TU312.1[建筑科学—结构工程] TU317.1