装配整体式地下车站中板大开孔力学性能研究  

Research on the Mechanical Properties of Medium Plate Large Opening of Assembled Integral Underground Station

作　　者：雷崇[1] 孙波[1] 徐军林[1] 张震[1] LEI Chong;SUN Bo;XU Junlin;ZHANG Zhen(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,武汉430063

出　　处：《铁道工程学报》2022年第10期87-93,共7页Journal of Railway Engineering Society

摘　　要：研究目的:装配式地下车站符合国家大力发展绿色建筑的倡导,近年来逐步得到应用。本文基于无锡至江阴城际轨道交通南门站采用的装配整体式车站结构体系,提出中板大开孔处孔边结构的设计方案,并对该孔边结构进行力学性能分析,为装配整体式车站的孔边结构体系应用提供理论依据。研究结论:(1)装配整体式车站在中板大开孔处采用叠合装配孔边结构方案合理可行,具有装配率高、免支架模板、施工快、不占用建筑净空、孔边构件刚度大的优点;(2)方案无论是在施工阶段还是在使用阶段,承载能力和变形均满足要求,结构安全可靠;(3)施工阶段,横向孔边梁(MYZAL(Y)梁)和纵向孔边梁(MYZAL(X)梁)安全冗余度相对较低,需控制开孔长边尺寸和施工荷载;(4)永久使用阶段,叠合孔边构件刚度显著大于现浇孔边构件;(5)本研究成果可在装配式地下车站中推广应用。Research purposes: Assembled underground stations are in line with the national advocacy of vigorously developing green buildings, and have been gradually applied in recent years. Based on the assembled integral station structure system used in Nanmen station of Wuxi to Jiangyin intercity rail transit, this paper puts forward the design scheme of large opening edge structure, and analyzes the mechanical properties of the structure, to provide theoretical basis for the application of the large opening edge structure of the assembled integral station.Research conclusions:(1)It is reasonable and feasible to adopt the superposed assembly large opening edge structure scheme, which has the advantages of high assembly rate, no bracket template, fast construction, no taking up building space, and large stiffness of the opening edge structure.(2)Whether in the construction stage or in the use stage, the bearing capacity and deformation meet the requirements, the structure is safe and reliable.(3)In the construction stage, the safety redundancy of MYZAL(Y) beam and MYZAL(X) beam is relatively low, so the size of the long side of the opening and the construction load need to be controlled.(4)In the permanent use stage, the stiffness of the opening edge structure is significantly greater than that of the cast-in-place component.(5)The research results can be applied in the assembled underground stations.

关 键 词：装配整体式地下车站 中板大开孔 孔边结构 力学性能分析 

分 类 号：U231.4[交通运输工程—道路与铁道工程]