(广州市设计院集团有限公司, 广州 510620)

摘要: 塔楼主体结构高度为 184. 85m,采用框架-核心筒结构体系,属于超 B 级高度的超限高层建筑,采用基于性能的抗震设计方法进行设计,抗震性能目标取 C 级。 采用 YJK 和 ETABS 软件对结构进行整体分析, 同时采用PERORM-3D 对结构进行动力弹塑性分析,计算结果表明结构能满足中震和大震下的抗震要求,结构体系设计合理,具有良好的抗震性能,并对薄弱构件制定相应的加强措施能达到预期的抗震性能目标。 运用 SAP2000 软件对角部悬挑楼板区域进行楼板舒适度分析,舒适度满足要求。 基于行标高规 JGJ 3—2010 和广东省高规 DBJ/ T 15-92—2021 进行结构布置及配筋计算,结果表明采用广东省高规设计的结构,在罕遇地震下能满足大震下达到 C 级抗震性能目标,结构经济可行且是安全的。

关键词: 超限高层结构; 框架-核心筒结构; 基于性能的抗震设计; 舒适度分析

中图分类号:TU318,TU972+. 9 文献标志码:A 文章编号:1002-848X(2022)24-0027-08

DOI:10. 19701 / j. jzjg. ZJ220089

Performance-based seismic design of an out-of-code high-rise tower

JIN Jing, WANG Songfan, WANG Weijun, CHEN Yuyi

(Guangzhou Design Institute Group Co. , Ltd. , Guangzhou 510620, China)

Abstract: A tower adopts a frame-core structure system, with a major structure height of 184. 85m, which belongs to anout-of-code high-rise building with a over B-level height. The structure was designed using a performance-based seismicdesign approach with a target seismic performance as level C. YJK and ETABS were used to analyze the overall structure,and PERORM-3D was used to carry out the dynamic elastic-plastic analysis. The calculation results show that the structurecan meet the seismic requirements of moderate and rare earthquakes, the structural system design is reasonable, and hasgood seismic performance. In order to achieve the expected seismic performance target, corresponding strengtheningmeasures were made for the weak members. SAP2000 was used to analyze the comfort level of floor slab in the cornercantilevered floor area, and the comfort meets requirements. Based on the industry standard JGJ 3—2010 and GuangdongProvince standard DBJ / T 15-92—2021, the structural layout and reinforcement calculation were carried out, the resultsshow that the structure designed by the Guangdong Province standard DBJ/ T 15-92—2021 can meet the seismicperformance target of level C under rare earthquakes, and the structure is economical, feasible and safe.

Keywords:out-of-code high-rise structure; frame-core structure; performance-based seismic design; comfort analysis

第一作者:金晶,硕士,工程师,主要从事高层建筑抗震性能研究,Email: jinjing@ gzdi. com。

[引用本文] 金晶,王松帆,王维俊,等. 某超限高层塔楼抗震性能设计[ J]. 建筑结构,2022,52(24):27-34. JINJing,WANG Songfan, WANG Weijun, et al. Performance-based seismic design of an out-of-code high-rise tower [ J].Building Structure,2022,52(24):27-34.