- 摘 要
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(江蘇省建筑設(shè)計研究院股份有限公司, 南京 210019)
摘要: 南京江心洲 AI 總部基地由一棟 120m 高的 A 塔和一棟 78m 高的 B 塔連體組成,其中 A 塔為框架?核心筒 結(jié)構(gòu),B 塔為帶屈曲約束支撐的框架?核心筒雙塔結(jié)構(gòu);A 塔與 B 塔分別在低位 4 ~ 6 層和高位 17 ~ 19 層通過跨度 36m 的鋼連廊連為一體,連接節(jié)點通過設(shè)置鉛芯橡膠支座實現(xiàn),并在高位支座設(shè)置黏滯阻尼器以提高抗風(fēng)和抗震 性能。 結(jié)構(gòu)存在復(fù)雜連接、扭轉(zhuǎn)不規(guī)則、樓板不連續(xù)、剛度突變、局部穿層柱等不規(guī)則情況。 對復(fù)雜連接多塔結(jié)構(gòu) 提出了明確的分析思路;對單塔模型和整體模型進行對比分析,證實了塔樓對連廊的地震放大效應(yīng)和連廊對塔樓 的減震效應(yīng);基于大震彈塑性時程分析,掌握了關(guān)鍵構(gòu)件在罕遇地震下的工作狀態(tài),對連接體的關(guān)鍵技術(shù)問題如抗連續(xù)倒塌等進行了分析。 為解決高層結(jié)構(gòu)中多塔復(fù)雜連接問題提供了思路。
關(guān)鍵詞: 多塔連體結(jié)構(gòu); 超限高層建筑; 弱連接; 鉛芯橡膠支座; 屈曲約束支撐
中圖分類號:TU318,TU393 文獻標(biāo)志碼:A 文章編號:1002?848X(2022)14?0001?06
DOI:10?? 19701 / j?? jzjg?? 20210331
Structural design of a multiple towers complex connection out?of?code high?rise building in Nanjing AI Headquarters
JIN Ruyuan, ZHANG Yongsheng, LIU Jie, YAN Kefei, LIANG Jun, ZHANG Haiyao
(Jiangsu Province Architectural D&R Insititute Co. , Ltd. , Nanjing 210019, China)
Abstract: The Nanjing Jiangxinzhou AI Headquarters Base is composed of a 120m high tower A and a 78m high tower Bconjoined. Tower A is a frame?corewall structure, tower B is a double towers frame?corewall structure with bucklingrestrained braces; Tower A and Tower B are connected by a steel corridor with a span of 36 m on the 4th to 6th floors at thelower position and the 17th to 19th floors in the high position. The connection nodes are constructed by setting up lead?corerubber bearings, and viscous dampers are installed on the high?position bearings to improve wind and earthquakeresistance. The structures have irregularities such as complex connections, torsion irregular, discontinuous floor slabs,sudden changes in stiffness, and some cross?layer columns. Clear analytical ideas were put forward for complex connectedmulti?tower structures; the single tower model and the overall model were compared and analyzed, and the seismicamplification effect of the tower on the corridor and the shock absorption effect of the corridor on the tower were confirmed;based on the time?history analysis of the elasto?plasticity of the large earthquake, the working state of the key componentsunder rare earthquakes was mastered. The key technical issues of the connector, such as resistance to continuous collapse,were analyzed, which provides an idea for solving the complex connection problem of multiple towers in high?risestructures.
Keywords:connected multiple?tower structure; out?of?code high?rise building; weak connection; lead?core rubber bearing;buckling restrained brace
第一作者:金如元,學(xué)士,教授級高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事超限高層結(jié)構(gòu)、大型商業(yè)綜合體等復(fù)雜結(jié)構(gòu)的研究設(shè)計和咨詢工作,Email:13505171982@ 163. com。
通信作者:張永勝,學(xué)士,研究員級高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事各類工業(yè)與民用建筑結(jié)構(gòu)設(shè)計、研究和咨詢工作,Email:157001515@ qq. com。
[引用本文] 金如元,張永勝,劉杰,等. 南京 AI 總部基地多塔復(fù)雜連接超限高層結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu),2022,52(14):1?6. JIN Ruyuan,ZHANG Yongsheng,LIU Jie,et al. Structural design of a multiple towers complex connectionout?of?code high?rise building in Nanjing AI Headquarters[J]. Building Structure,2022,52(14):1?6.