- 摘 要
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(中國建筑西南設計研究院有限公司,成都 610042)
摘要: 某連體建筑由 52.35m 高的框剪結構 A 塔樓和 77.5m 高的框筒結構 B 塔樓通過跨度為 32.4m 的單層鋼連廊在 47.75m 高度上連接形成.兩棟塔樓主體體量差異大,進行了 4 種連體連接方式的選型分析,確定了滑動支座設置于連廊上端的兩端滑動的連接形式.重點分析了隔震連廊對主體結構的影響,結果表明連廊兩端設置 4 個摩擦擺支座的弱連接形式,減弱了連體結構對主體結構的影響,主體結構可以分開單獨進行分析設計.對整體模型進行了彈塑性分析,結果表明采用弱連接后,連體結構各構件達到性能目標的要求.對支承連體牛腿的有限元分析結果表明,牛腿采用三角桁架形式的布置及對應構造安全可靠.對連廊樓蓋單人連續(xù)荷載及人群荷載分析結果表明,其舒適度滿足規(guī)范要求.
關鍵詞: 高層連體結構;弱連接;隔震;摩擦擺支座;樓蓋舒適度分析
中圖分類號:TU318 文獻標志碼:A 文章編號:1002-848X(2022)17-0092-07
DOI:10.19701 / j.jzjg.CSWADI2017
Design and analysis for a high-rise conjoined structure with different volume
PENG Zhizhen,QIN Pan,WU Xiaobin,CHEN Zhiqiang,CHEN Hongyan,ZHU Jianfu,ZHANG Xingyu,YANG Lin
(China Southwest Architectural Design and Research Institute Co. ,Ltd. ,Chengdu 610042,China)
Abstract: A conjoined building consists of a frame-shear structure A tower with a height of 52.35m and a frame-and-tubestructure B tower with a height of 77.5m connected by a single-story steel corridor with a span of 32.4m at a height of47.75m. There is a big difference in the volume of the two main tower buildings,so the selection and analysis of fourconjoined connection methods were carried out,and the two ends of the sliding bearing set at the upper end of theconnecting corridor were determined. The impact of the seismic isolation corridor on the main structure was mainlyanalyzed. The results show that the weak connection form of four friction pendulum supports at both ends of the corridorreduces the influence of the connected structure on the main structure,and the main structure can be analyzed and designedseparately. The elastic-plastic analysis of the overall model was carried out,and the results show that after the weakconnection is adopted,the components of the conjoined structure meet the performance target requirements. The finiteelement analysis results of the supporting conjoined corbels show that the arrangement of the corbels in the form of triangulartrusses and the corresponding structure are safe and reliable. The analysis results of single continuous load and crowd loadof the connecting corridor floor show that its comfort meets the requirements of the code.
Keywords:high-rise conjoined structure;weak connection;seismic isolation;friction pendulum bearing;floor comfortanalysis
第一作者:彭志楨,碩士,高級工程師,一級注冊結構工程師,主要從事超高層及減隔震的結構設計研究,Email: pzzhen@ 126.com.
[引用本文] 彭志楨,秦攀,吳小賓,等. 某差異體量高層連體結構設計與分析[ J]. 建筑結構,2022,52(17):92-98. PENG Zhizhen,QIN Pan,WU Xiaobin,et al. Design and analysis for a high-rise conjoined structure with differentvolume[J]. Building Structure,2022,52(17):92-98.
