摘要
结合济南地铁某车站工程,对拱形地铁车站结构站台层设柱与不设柱方案进行受力对比分析,同时对围护结构对顶板拱脚变形约束作用进行研究。分析研究表明,通过底板设置仰拱,可实现站厅层、站台层均无柱的车站建筑方案;车站外侧围护结构可有效约束顶板拱脚水平变形,优化顶板拱结构受力,围护结构刚度越大,对顶板拱脚变形约束越明显。
By taking an example of a station project of Jinan metro,this paper makes a comparative analysis on the stress of the scheme with and without columns in the platform level of the arched metro station structure,and studies the restraint effect of the retaining structure on the deformation of the roof arch foot.The analysis and research show that the station building scheme of no column in station hall floor and platform floor is realized by setting invert in floor.The bigger the stiffness of the retaining structure is,the more obvious the constraint is.
出处
《现代城市轨道交通》
2021年第6期40-45,共6页
Modern Urban Transit
关键词
地铁
无柱拱形车站
围护结构
结构分析
subway
no column arch station
retaining structure
structural analysis
