(广州市设计院集团有限公司, 广州 510620)

摘要: 广州科学城超限高层塔楼为 A 级高度的连体结构,存在扭转不规则、凹凸不规则、复杂连接的不规则情况。设计中采用了基于性能的抗震设计方法,根据结构的重要性提出不同的抗震性能目标,并对结构进行小震弹性分析、小震弹性时程分析、中震性能设计、大震等效弹性分析及动力弹塑性时程分析。 分析结果表明,结构整体和各构件的抗震性能均能达到预期目标。 对于连接体结构,通过补充分析及多种构造措施加强,确保连接体结构构件满足设定的抗震性能目标。

关键词: 超限高层建筑; 塔楼连体结构; 平面斜交; 抗震性能设计; 动力弹塑性分析

中图分类号:TU375 文献标志码:A 文章编号:1002-848X(2022)24-0013-07

DOI:10. 19701 / j. jzjg. ZJ220074

Conjoined structural design of a plane oblique twin towers in Guangzhou Science City

HUANG Juncong, WANG Songfan, WANG Weijun, YAN Wen

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

Abstract: Over-limit high-rise towers building of Guangzhou Science City is linked with connective structures with A-levelrequirement of height. There are irregularities including irregular torsion, irregular bumpsand and complex connection. Theperformance-based seismic design method was adopted in the design. Different performance targets were proposed accordingto the importance of the structure. The elasticity analysis under frequent earthquakes, the elastic time-history analysis underfrequent earthquakes, the performance design under fortification earthquakes, the equivalent elasticity analysis under rareearthquakes and elastic-plastic time-history analysis were performed. The analysis results show that the seismic performanceof the whole structure and each component can reach the expected target. For connective structures, the supplementarycalculation and analysis and various structural measures were used to strengthen the components of connective structures toensure that all components meet the expected seismic performance targets.

Keywords:over-limit high-rise building; tower linked with conjoined structure; plane oblique; performance-based seismicdesign; dynamic elastic-plastic analysis

∗广州市建筑集团有限公司科技计划项目资助项目([2021]-KJ020)。

第一作者:黄俊聪,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:huangjuncong@ gzdi. com。

[引用本文] 黄俊聪,王松帆,王维俊,等. 广州科学城平面斜交高层双塔连体结构设计[ J]. 建筑结构,2022,52(24):13-19. HUANG Juncong,WANG Songfan,WANG Weijun,et al. Conjoined structural design of a plane oblique twintowers in Guangzhou Science City[J]. Building Structure,2022,52(24):13-19.