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(1 湖南省建筑設(shè)計院集團股份有限公司, 長沙 410012; 2 湖南省建筑設(shè)計院集團股份有限公司新型復雜結(jié)構(gòu)研究中心, 長沙 410012)
摘要: 長沙保利國際廣場 B3 塔樓建筑高度 235m,采用混合框架-鋼筋混凝土核心筒-伸臂桁架-帶狀桁架結(jié)構(gòu)體系,屬于結(jié)構(gòu)不規(guī)則的高度超限結(jié)構(gòu)。 采用 SATWE 和 ETABS 兩種軟件對塔樓進行彈性分析,并采用 PERFORM-3D 進行動力彈塑性時程分析,針對加強層、核心筒豎向收進、斜柱等重點部位采用了伸臂桁架貫通剪力墻、剪力墻中設(shè)置交叉鋼筋暗撐、加強樓板構(gòu)造等加強措施。 結(jié)果表明,塔樓各項指標均滿足規(guī)范要求和預期抗震性能目標,結(jié)構(gòu)安全可靠。
關(guān)鍵詞: 超高層建筑; 混合結(jié)構(gòu)體系; 伸臂桁架; 帶狀桁架; 傾斜外框柱
中圖分類號:TU973 文獻標志碼:A 文章編號:1002-848X(2022)22-0040-06
DOI:10. 19701 / j. jzjg. 20220537
Super high-rise structure design on B3 tower of Changsha Poly International Plaza
CHEN Yu1,2, WANG Siqing1,2, XIA Xinhong1, ZHU Liang1
(1 Hunan Architectural Design Institute Group Co. , Ltd. , Changsha 410012, China; 2 New Complex Structure ResearchCenter of Hunan Architectural Design Institute Group Co. , Ltd. , Changsha 410012, China)
Abstract: The building height of B3 tower of Changsha Poly International Plaza is 235m. A hybrid frame-reinforced concretecore-outrigger truss-belt truss system was adopted, which belonged to the irregular structure and height overrun structure. Elasticanalysis of the tower was carried out using SATWE and ETABS software, and dynamic elastic-plastic time-history analysis wascarried out using PERFORM-3D. For key parts such as the reinforcement layer, the vertical retraction of the core tube and theinclined column, strengthening measures such as the outrigger truss penetrating the shear wall, setting cross steel bar concealedbracing in shear wall and the strengthening floor structure were adopted. The results show that all the indicators of the tower meetthe requirements of the code and the expected seismic performance targets, the structure is safe and reliable.
Keywords:super high-rise building; hybrid structural system; outrigger truss; belt truss; inclined frame column
∗湖南省科技計劃項目:湖南省社會發(fā)展領(lǐng)域重點研發(fā)項目(2017SK2260)。
第一作者:陳宇,碩士,教授級高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事新型復雜結(jié)構(gòu)設(shè)計研究,Email:360047430@qq. com。
[引用本文] 陳宇,王四清,夏心紅,等. 長沙保利國際廣場 B3 塔樓超高層結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu),2022,52( 22):40-45. CHEN Yu,WANG Siqing,XIA Xinhong,et al. Super high-rise structure design on B3 tower of Changsha PolyInternational Plaza[J]. Building Structure,2022,52(22):40-45.
