(1 北京维拓时代建筑设计股份有限公司, 北京 100025; 2 京投集团, 北京 100013)

摘要: 传统高烈度区地铁上盖建筑采用装配式混凝土结构体系,存在刚度突变、必须采用隔震层、结构超限及建设成本较高等问题. 提出了一种适用于高烈度区地铁上盖建筑的装配式钢结构体系,包括主体结构和围护结构配套体系. 通过对比装配式钢结构与装配式混凝土结构的结构性能、建造成本等,得出装配式钢结构在一定程度上避免了结构超限问题,不仅能大幅降低盖下和盖上的建设成本,还能满足建筑大开间灵动性及后期改造的需求.在此基础上,进一步取消高烈度区装配式钢结构体系与盖下间的隔震层,通过大震弹塑性计算分析,证明取消隔震层后的装配式钢结构体系在罕遇地震下仍有很好的抗震性能,且可节约综合建造成本,对现有的装配式政策及地铁上盖建筑市场需求具有很高的适应性.

关键词: 地铁上盖; 装配式结构; 钢结构; 隔震层

中图分类号:TU352. 1 文献标志码:A 文章编号:1002-848X(2023)03-0087-05

DOI:10. 19701 / j. jzjg. LS220290

Research on fabricated steel structure system based on a TOD subway in high intensity area

XIE Longbao1, LENG Dongmei1, LI Jing1, LIU Yiheng1, MAO Gang2, LI Hongqiu1

(1 Beijing Victory Star Architectural & Civil Engineering Design Co. , Ltd. , Beijing 100025, China;2 Beijing Investment Group, Beijing 100013, China)

Abstract: The fabricated concrete structure system used for transit-oriented development (TOD) subway in the traditionalhigh seismic intensity area has some problems, such as sudden change of stiffness, the need to use isolation layer, structureoverrun and high construction cost. A fabricated steel structure system for TOD subway in high seismic intensity area wasproposed, including the main structure and the supporting system of enclosure structure. By comparing the structuralperformance and construction cost of fabricated steel structure and fabricated concrete structure, it is concluded thatfabricated steel structure can avoid the problem of structural overrun to a certain extent, which can not only significantlyreduce the construction cost under and above the cover, but also meet the flexibility of building large space and the needs oflater transformation. On this basis, the isolation layer between the fabricated steel structure system and the lower cover inthe high intensity area was further removed. Through the rare earthquake elastic-plastic calculation and analysis, it isproved that the fabricated steel structure system without the isolation layer still has good seismic performance under rareearthquakes, can save the comprehensive construction cost, and has high adaptability to the existing fabricated policy andthe market demand for TOD subway.

Keywords:transit-oriented development subway; fabricated structure; steel structure; isolation layer

第一作者:谢龙宝,硕士,高级工程师,主要从事结构装配式的设计和研究工作,Email: 863890289@ qq. com.

[引用本文] 谢龙宝,冷冬梅,李靖,等. 基于某高烈度区地铁上盖建筑的装配式钢结构体系研究[ J]. 建筑结构,2023,53(3):87-91. XIE Longbao,LENG Dongmei,LI Jing,et al. Research on fabricated steel structure system based on aTOD subway in high intensity area[J]. Building Structure,2023,53(3):87-91.