- 摘 要
-
(gad 杰地設計.浙江綠城建筑設計有限公司,杭州 310007)
摘要: 溫州鹿城廣場超高層塔樓位于沿海低烈度臺風高發(fā)區(qū)，采用框架-核心筒-伸臂桁架(環(huán)帶桁架)結構體系，外框架為型鋼混凝土柱和鋼梁、混凝土梁，與鋼筋混凝土核心筒組成雙重抗側力體系；塔樓采用嵌巖超長樁與非嵌巖短樁組成的長短樁基礎。針對項目特點和超限情況，介紹了結構選型及布置，并進行了抗風設計、小震彈性分析、大震彈塑性分析、施工模擬分析及關鍵節(jié)點有限元分析等。分析結果表明，核心筒采用斜墻方式收進，可增加使用面積提高經濟效益，并避免結構剛度突變引起的內力集中；在沿海低烈度臺風多發(fā)區(qū)，必須重視針對風荷載的建筑體型優(yōu)化；風荷載起控制作用時，可將設防烈度提高 1 度進行罕遇地震彈塑性分析，以尋找結構薄弱部位及可能的破壞類型并予以加強。
關鍵詞: 溫州鹿城廣場； 低烈度臺風區(qū)； 超高層結構； 伸臂桁架； 核心筒斜墻收進； 抗風體型優(yōu)化； 抗震性能化設計
中圖分類號:TU318+. 1 文獻標志碼:A 文章編號:1002-848X(2022)19-0001-08
DOI:10.19701 / j.jzjg.gad2221
Structural design of super high-rise tower of Wenzhou Lucheng Plazain low-intensity and typhoon-prone regions
LI Baozhong,WANG Xin,LI Gen,ZHONG Zhouneng,WANG Shan，
HUANG Jie,ZHAN Lebin,FANG Xunke
(gad.Zhejiang Greenton Architectural Design Co. ,Ltd. ,Hangzhou 310007,China)
Abstract: The super tall tower of Wenzhou Lucheng Plaza is located in low-intensity and typhoon-prone coastal areas. Thetower will be consisted of a dual system of the reinforced concrete central core with composite perimeter moment frame andoutrigger truss(belt truss) system,and the perimeter frame consists of SRC column,steel beam and concrete beam. Thefoundation system is long-short-pile foundation with hon-rock-socketed short piles and rock-socketed long piles. In responseto out-of-code situations,the selection and arrangement of structure were introduced,further calculation analyses on thestructure were conducted including the wind resistance design,the elastic analysis under frequently occurred earthquake，elastic-plastic analysis under rare earthquake,construction simulation analysis,key nodes finite element method analysis.The analysis results show that the core tube is retracted by inclined wall,which can increase the service area,improve theeconomic benefit,and avoid the internal force concentration caused by the sudden change of structural stiffness； inlow-intensity and typhoon-prone regions,it is necessary to pay attention to the optimization of building shape according towind load. When the wind load plays a control role,the seismic intensity can be increased by 1 degree upon precautionaryearthquake to conduct the elastic-plastic analysis under rare earthquakes,so as to find the weak parts of the structure andpossible damage types and strengthen them.
Keywords:Wenzhou Lucheng Plaza； low-intensity and typhoon-prone region； super high-rise structure； outrigger； coretube retracted by inclined wall； shape optimization for wind load； performance-based seismic design
第一作者:李保忠，博士，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: libaozhong@ gad. com. cn。
[引用本文] 李保忠，王昕，李根，等. 溫州鹿城廣場低烈度臺風區(qū)超高層塔樓結構設計[ J]. 建筑結構，2022，52(19):1-8. LI Baozhong，WANG Xin，LI Gen，et al. Structural design of super high-rise tower of Wenzhou Lucheng Plaza inlow-intensity and typhoon-prone regions[J]. Building Structure，2022，52(19):1-8.
