(湖南省建筑设计院集团股份有限公司, 长沙 410012)

摘要: 晟通梅溪湖国际总部中心属超 B 级高度的连体超高层结构,存在多项不规则项,核心筒相互正交,扭转效应明显,结构受力复杂。 其中核心筒的布置、连接体的设计及加强层的设置均是结构设计中的难点和重点。 结合工程实例,介绍了结构体系、超限项判断、连接体的设计、加强层的设置等。 对整体结构进行了小震、中震、大震作用下的抗震性能分析,对结构进行了施工过程、楼板应力和连接体专项等关键问题分析,并完成了 0°和 45°模型在水平力作用下的受力及变形分析。 分析结果表明,通过设置较少的加强层且未设置环带桁架,在达到较好的立面效果的同时,结构还可以获得较好的抗震性能,能够达到预设的抗震性能目标。通过关键问题分析,获得了合理的施工顺序以及楼板局部加强区域,连接体的抗震性能良好,能够很好地协同双塔的水平变形。

关键词: 晟通梅溪湖国际总部中心; 连体超高层结构; 超限分析; 专项分析; 抗震性能

中图分类号: TU318+. 1 文献标志码:A 文章编号:1002-848X(2022)22-0058-06

DOI:10. 19701 / j. jzjg. ZJ220070

Seismic performance analysis of an asymmetric connected super high-rise structure

LIU Yiren, LI Peng, YANG Xiao, DENG Xiaochun, HU Maoang, YANG Bo, DENG Xin

(Hunan Architectural Design Institute Group Co. , Ltd. , Changsha 410012, China)

Abstract: SNTO Meixi Lake International Headquarters Center is a connected super high-rise structure with a super Bheight level. The structural design has several irregular items with perpendicular core tubes,obvious torsion effect, complexstructure stress. The layout of the core tubes, the design of the connector and the setting of the strengthened layers are thedifficulties and emphases in structural design. Combined with engineering examples,structural system, the judgment ofout-of-code items, the design of the connector, and the setting of strengthened layers were introduced. The seismicperformance analysis of the overall structure under small, medium and large earthquakes was carried out. The specialanalyses of the key items like the construction process, the slab stress and building connector, as well as the force anddeformation performance of 0° and 45° models under the horizontal force were carried out. The analysis results show thatthrough setting fewer strengthened layers without belt truss, the structure is able to obtain good seismic performance andmeet the pre-set seismic performance goal with nice facade effect. Through the analysis of key items, the reasonablesettings of the construction process and the part reinforcing area of the floor slab are obtained. The connector has a goodseismic performance and can well coordinate the horizontal deformation of the double towers.

Keywords:SNTO Meixi Lake International Headquarters Center; connected super high-rise structure; out-of-code analysis;special analysis; seismic performance

第一作者:刘义仁,硕士,高级工程师,主要从事高层结构设计工作,Email:419794530@ qq. com。

[引用本文] 刘义仁,李鹏,杨晓,等. 某非对称连体超高层结构抗震性能分析[ J]. 建筑结构,2022,52(22):58-63. LIU Yiren,LI Peng,YANG Xiao, et al. Seismic performance analysis of an asymmetric connected super high-risestructure [J]. Building Structure,2022,52(22):58-63.