(四川省建筑设计研究院有限公司, 成都 610095)

摘要: 眉山 58 号地块项目 1#塔楼采用钢筋混凝土框架-核心筒结构体系,结构高度 141. 60m,为 B 级高度的超高层建筑. 为了满足建筑功能和立面造型的需要,在结构相应位置设置了穿层柱、斜柱和牛腿柱. 通过 SATWE 和MIDAS Building 两种软件对结构进行了多遇地震下的反应谱分析,并借助 SATWE 软件进行弹性时程分析作为补充验算. 采用 SATWE 软件对结构进行了等效弹性分析,保证主要构件满足设防地震和罕遇地震作用下的抗震性能化设计目标. 运用 SAUSAGE 软件对结构进行了罕遇地震下的动力弹塑性时程分析,以保证结构“大震不倒”.基于 MIDAS Gen 和 ABAQUS 等软件对穿层柱、斜柱和牛腿柱进行了专项分析,确保了重要部位的安全性. 结果表明,结构具有良好的抗震性能,能达到预设的 C 级抗震性能目标.

关键词: 超高层建筑; 框架-核心筒结构; 抗震性能化设计; 动力弹塑性时程分析; 专项分析

中图分类号:TU318 文献标志码:A 文章编号:1002-848X(2023)07-0041-09

DOI:10. 19701 / j. jzjg. SADI2307

Structural design and special analysis of important parts of an out-of-code high-rise building tower

DUAN Xingyu, TANG Yuanxu, SU Zhide, LI Zhenliang, YANG Han

(Sichuan Provincial Architectural Design and Research Institute Co. , Ltd. , Chengdu 610095, China)

Abstract: Tower 1 of Meishan 58 Plot project adopts reinforced concrete frame-core tube structure system, with a structuralheight of 141. 60m, which is a super high-rise building with B-level height. In order to meet the needs of building functionand facade modeling, some cross-story columns, an inclined column and a cow-leg pillar were set in the correspondingposition of the structure. By using SATWE and MIDAS Building software, the response spectrum analysis of the structureunder frequent earthquakes was carried out, and the elastic time history analysis was taken as a supplementary check byusing SATWE software. The equivalent elastic analysis of the structure was carried out by SATWE software to ensure theperformance-based seismic design objectives of the main components under fortification and rare earthquakes. The dynamicelastic-plastic time-history analysis of the structure under rare earthquakes was carried out by using SAUSAGE software,making sure that the structure won’t collapse under rare earthquakes. Based on MIDAS Gen, ABAQUS and other software,special analysis of the cross-story columns, the inclined column and the cow-leg pillar were taken to ensure the safety ofimportant parts. The results show that the structure has good seismic performance and can reach the preset C class seismicperformance target.

Keywords:super high-rise building; frame-core tube structure; performance-based seismic design; dynamic elastic-plastictime-history analysis; special analysis

第一作者:段星宇,硕士,高级工程师,一级注册结构工程师,主要从事结构设计工作,Email:425927943@ qq. com.

[引用本文] 段星宇,唐元旭,苏志德,等. 某超限高层塔楼结构设计与重要部位专项分析[J]. 建筑结构,2023,53(7):41-49. DUAN Xingyu,TANG Yuanxu,SU Zhide,et al. Structural design and special analysis of important parts of anout-of-code high-rise building tower[J]. Building Structure,2023,53(7):41-49.