“Y型柱”大柱跨、大层高车站结构受力特性研究  

Study on the mechanical characteristics of station structure with large column span and large story height of Y-shaped column

作　　者：沈飞 Shen Fei(Southwest Jiaotong University,Chengdu Sichuan 610031,China)

机构地区：[1]西南交通大学,四川成都610031

出　　处：《山西建筑》2025年第1期60-64,共5页Shanxi Architecture

摘　　要：伴随着国内城市轨道交通的高速建设,我们的规划设计对地铁车站的空间形式以及其区间隧道断面的结构形式提出了更多的新需要,为了满足居民对城市地下结构空间高利用率、环境高观赏性等多方位的需求,大跨度、高断面、宽柱距、异形柱等各种独具特色的地下结构也陆续出现。相比于传统立柱,设置大跨度Y型柱的车站结构成为了一种全新的结构,相比于传统车站结构,其所能提供的实际空间宽敞得多。为了研究这种采用新型结构的地铁车站的受力特性,以广州地铁彩虹桥站为工程案例,使用MIDAS软件建立三维模型并划分实网格,采用FLAC3D软件重点分析了车站梁沉降和应力,Y型柱的应力变化规律。Along with the high-speed construction of domestic urban rail transit,our planning and design put forward more new requirements for the spatial form of subway stations and the structural form of its intersectional tunnel sections.In order to meet the multi-dimensional demands of residents for the high utilization rate of urban underground structure space and the high ornamental environment,a variety of unique underground structures such as large span,high section,wide column spacing and special-shaped columns have also appeared.Compared with the transmission column,the station structure with the long-span Y-shaped column has become a new structure,which can provide much more spacious actual space than the traditional station structure.In order to study the stress characteristics of the subway station with the new structure,taking Guangzhou Metro Caihongqiao Station as an engineering case,MIDAS software was used to establish a three-dimensional model and divide the real grid.FLAC3D software was used to analyze the settlement and stress of the station beam and the stress variation law of the Y-shaped column.

关 键 词：大跨度 地铁车站 Y型柱 有限差分元 

分 类 号：TU375.3[建筑科学—结构工程]