- 摘 要
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(廣州市設計院集團有限公司, 廣州 510620)
摘要: 廣州科學城超限高層塔樓為 A 級高度的連體結構,存在扭轉(zhuǎn)不規(guī)則、凹凸不規(guī)則、復雜連接的不規(guī)則情況。設計中采用了基于性能的抗震設計方法,根據(jù)結構的重要性提出不同的抗震性能目標,并對結構進行小震彈性分析、小震彈性時程分析、中震性能設計、大震等效彈性分析及動力彈塑性時程分析。 分析結果表明,結構整體和各構件的抗震性能均能達到預期目標。 對于連接體結構,通過補充分析及多種構造措施加強,確保連接體結構構件滿足設定的抗震性能目標。
關鍵詞: 超限高層建筑; 塔樓連體結構; 平面斜交; 抗震性能設計; 動力彈塑性分析
中圖分類號:TU375 文獻標志碼:A 文章編號: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
∗廣州市建筑集團有限公司科技計劃項目資助項目([2021]-KJ020)。
第一作者:黃俊聰,碩士,高級工程師,一級注冊結構工程師,主要從事結構設計工作,Email:huangjuncong@ gzdi. com。
[引用本文] 黃俊聰,王松帆,王維俊,等. 廣州科學城平面斜交高層雙塔連體結構設計[ J]. 建筑結構,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.
