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(1 華南理工大學(xué)建筑設(shè)計研究院有限公司,廣州 510641;2 華南理工大學(xué)土木與交通學(xué)院,廣州 510640)
摘要: 粵海金融中心塔樓 A 地上建筑高度 284.0m,采用帶一道伸臂桁架加強(qiáng)層的鋼管混凝土柱鋼框架+鋼筋混凝土核心筒混合結(jié)構(gòu).其外框由 8 根柱距為 25.5m 的巨型鋼管混凝土柱和四角懸挑約 11m 的鋼梁組成,為超200m 高且僅有 8 根巨柱組成的帶大跨度、大懸挑樓蓋的框架-核心筒結(jié)構(gòu).為提高結(jié)構(gòu)的抗側(cè)剛度,在 38 層(避難層)設(shè)置一道伸臂桁架,與伸臂桁架相連的剪力墻內(nèi)設(shè)置鋼桁架.本項目存在扭轉(zhuǎn)不規(guī)則、偏心布置、樓板不連續(xù)、含加強(qiáng)層等多項超限項,按照設(shè)定的性能目標(biāo),對結(jié)構(gòu)進(jìn)行彈性計算、中震驗算,并采用 Perform-3D 軟件進(jìn)行了罕遇地震作用下的彈塑性動力時程分析,針對薄弱部位采取了有針對性的加強(qiáng)措施.結(jié)果表明:各項指標(biāo)均滿足規(guī)范要求,結(jié)構(gòu)受力合理,安全經(jīng)濟(jì).
關(guān)鍵詞: 超限高層建筑;伸臂桁架加強(qiáng)層;大跨度;大懸挑;內(nèi)嵌桁架
中圖分類號:TU973,TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2022)17-0066-06
DOI:10.19701 / j.jzjg.20212384
Design of out-of-code high-rise structure of Guangdong Holdings Limited BayContemporary Center
ZHAO Ying1,JIANG Yi1,2,WANG Song1,HUANG Yong1
(1 Architectural Design Research Institute of SCUT,Guangzhou 510641,China;2 School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China)
Abstract: The above ground building height of tower A of Guangdong Holdings Limited Bay Contemporary Center is284.0m,and the hybrid structure of CFST steel frame + RC core tube with one outrigger truss reinforcement layer isadopted. Its outer frame is composed of 8 giant concrete-filled steel tubular columns with a column spacing of 25.5m andsteel beams with a cantilever of about 11m at the four corners. It is the frame-core tube structure with long span and largecantilevered floor,which is over 200m high and consists of only 8 giant columns. In order to improve the lateral stiffness ofthe structure,an outrigger truss is set on the 38 floor(refuge floor),and a steel truss is set in the shear wall connected withthe outrigger truss. There were many out of limit items in the project,such as irregular torsion,eccentric layout,discontinuous floor slab,including strengthened story and so on. According to the predefined performance objectives,elastic caculation and checking caculation under fortification earthquakes were conducted,and elastic-plastic dynamictime-history analysis under rare earthquakes was carried out by using Perform-3D software,targeted strengthening measureshad been taken for weak areas. The results show that all the indicators meet the requirements of the specification,thestructural force is reasonable,and it is safe and economical.
Keywords:out-of-code high-rise building;outrigger truss reinforcement layer;long span;large cantilever;embedded truss
∗企業(yè)橫向科研基金項目(x2jzD8220290).
第一作者:趙穎,碩士,工程師,一級注冊結(jié)構(gòu)工程師,主要從事超高層、復(fù)雜建筑結(jié)構(gòu)設(shè)計與研究,Email:591759868@ qq. com.
[引用本文] 趙穎,江毅,王嵩,等. 粵海金融中心超限高層結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu),2022,52(17):66-71. ZHAOYing,JIANG Yi,WANG Song,et al. Design of out-of-code high-rise structure of Guangdong Holdings Limited BayContemporary Center[J]. Building Structure,2022,52(17):66-71.
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