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(華東建筑設計研究院有限公司, 上海 200002)
摘要: 隨著高層及超高層建筑的不斷發(fā)展,出現(xiàn)了扭轉(zhuǎn)體型的結(jié)構(gòu). 在承受荷載作用時,扭轉(zhuǎn)體型結(jié)構(gòu)受力與常規(guī)結(jié)構(gòu)有較大的不同. 搜集了國內(nèi)外已經(jīng)建成的扭轉(zhuǎn)體型高層建筑結(jié)構(gòu)的案例,并按照結(jié)構(gòu)實現(xiàn)方式對其進行了分類. 選擇最具代表性的框架?核心筒結(jié)構(gòu)體系作為研究對象,分析了扭轉(zhuǎn)體型高層建筑結(jié)構(gòu)的受力特點. 對此類扭轉(zhuǎn)結(jié)構(gòu)獨有的樓層附加扭矩產(chǎn)生原因進行了討論,并提出變角度扭轉(zhuǎn)框架?核心筒結(jié)構(gòu)的附加扭矩計算公式.通過建立一系列的數(shù)值分析模型,從結(jié)構(gòu)整體和構(gòu)件受力兩個層面對典型的扭轉(zhuǎn)體型高層建筑結(jié)構(gòu)在豎向重力荷載及水平地震作用下的受力性能進行了較為全面的分析.
關(guān)鍵詞: 扭轉(zhuǎn)體型結(jié)構(gòu); 超高層建筑; 受力性能; 附加扭矩
中圖分類號:TU973 文獻標志碼:A 文章編號:1002?848X(2022)10?0089?07
DOI:10. 19701 / j.jzjg.HDY2217
Analysis on mechanical performance of torsional high?rise building structure
ZHOU Jianlong, QIU Jierao, BAO Lianjin, QIAN Peng, SUN Zhanjin, HE Bingbing
(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract: With the continuous development of high?rise and super high?rise buildings, torsional structure appeared. Whensubjected to load, force bearing of the torsional structure is quite different from the conventional structure. The cases oftorsional high?rise building structure built in China and abroad were collected and classified according to the structuralrealization method. The most representative frame?core tube structure system was selected as the research object, and theforce characteristics of torsional high?rise building structure were analyzed. The causes of floor additional torque unique tosuch torsional structure were discussed, and the additional torque calculation formula of variable?angle torsion frame?coretube structure was proposed. Through the establishment of a series of numerical analysis models, the mechanicalperformance of typical torsional high?rise building structure under vertical gravity load and horizontal earthquake werecomprehensively analyzed at the overall structure and component stress level.
Keywords:torsional structure; super high?rise building; mechanical performance; additional torque
∗十三五國家重點研發(fā)計劃項目(2018YFC0705800) ,“上海超高層建筑設計工程技術(shù)研究中心”建設項目(14DZ2252800).
第一作者:周建龍,全國工程勘察設計大師,教授級高級工程師,主要從事超高結(jié)構(gòu)的設計與相關(guān)研究,Email: jianlong_zhou@ecadi.com.
[引用本文] 周建龍,邱介堯,包聯(lián)進,等. 扭轉(zhuǎn)體型高層建筑結(jié)構(gòu)受力性能分析[ J]. 建筑結(jié)構(gòu),2022,52(10):89?95,147. ZHOU Jianlong,QIU Jierao,BAO Lianjin,et al. Analysis on mechanical performance of torsional high?rise buildingstructure[J]. Building Structure,2022,52(10):89?95,147.
