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蘭和義,賴海彪
(深圳左肖思建筑師事務(wù)所有限公司,深圳518040)[摘要] 紅星國際家具展示中心由六棟塔樓及商業(yè)裙房組成,塔樓上部采用剪力墻結(jié)構(gòu),下部采用框支剪力墻結(jié)構(gòu);裙房采用框架結(jié)構(gòu)。層5以下為裙房,層6為結(jié)構(gòu)轉(zhuǎn)換層,每三棟塔的轉(zhuǎn)換層連成整體,形成多塔高位轉(zhuǎn)換的復(fù)雜高層建筑。采用SATWE及ETABS進行轉(zhuǎn)換層上下剛度比分析,采用層剛度比、等效側(cè)向剛度比及層間位移角比進行評價。給出了轉(zhuǎn)換層剛度比控制分析過程,通過對比多模型、多軟件、多指標的計算結(jié)果,分析了多塔高位轉(zhuǎn)換對剛度比的影響,并對落地抗震墻進行了加強,從而控制剛度比在合適范圍內(nèi)。
[關(guān)鍵詞] 高層建筑;多塔高位轉(zhuǎn)換結(jié)構(gòu);層剛度比;等效側(cè)向剛度比;層問位移角比Control stiffness ratio of transfer structure in Hongxing International Furniture Exhibition Center
Lan Heyi, Lai Haibiao
(Zuo-XiaoSi Architects Engineers Shenzhen Inc., Shenzhen 518040, China)Abstract: Hongxing International Furniture Exhibition Center was composed of six towers and a commercial podium. Shear wall structure was adopted on the top of towers, frame transfer and shear wall structure was adopted on the bottom of towers, frame structure was adopted on the podium. There were five stories in the podium and a transfer story on the sixth floor, transfer stories in each ofthe three towers transform a whole structure, which was a multi-tower high-transfer and high-rise building. Stiffness ratio of transfer was carried out with SATWE and ETABS, the high-rise building was estimated through inter-storey stiffness ratio equivalent lateral stiffness ratio and inter-storey displacement angle ratio. The process of control and analysis was given about the transfer structure stiffness ratio, the affect to stiffness ratio of multi-tower and high-transfer structure was studied by comparing the results calculated with several models, several softwares and several items, and the stiffness ratio had been controlled in the appropriate range, after the bottom shear wall was strengthen
Keywords: high-rise building; multi-tower and high-transfer structure; inter-storey stiffness ratio; equivalent lateral stiffness ratio; inter-storey displacement angle ratio