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（1 西安建筑科技大學(xué)土木工程學(xué)院， 西安 710055；2 西安建筑科技大學(xué)建筑設(shè)計(jì)研究院， 西安 710055）

［摘要］結(jié)合西安市盛龍廣場(chǎng)大底盤多塔結(jié)構(gòu)工程實(shí)例，分析了大底盤多塔結(jié)構(gòu)的結(jié)構(gòu)特性和水平地震作用下結(jié)構(gòu)的整體變形和受力特征。若將設(shè)備層作為單獨(dú)的結(jié)構(gòu)層，則會(huì)導(dǎo)致整體結(jié)構(gòu)側(cè)向剛度較難滿足規(guī)范要求，對(duì)結(jié)構(gòu)整體受力產(chǎn)生不利影響。提出設(shè)備層豎向抗側(cè)剛度突變的處理方法及設(shè)計(jì)要點(diǎn)，為此類工程設(shè)計(jì)提供一定借鑒。

［關(guān)鍵詞］大底盤多塔結(jié)構(gòu); 設(shè)備層; 側(cè)向剛度比; 結(jié)構(gòu)設(shè)計(jì)

中圖分類號(hào)：TU318.2      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)06-0093-04

Treatment method of lateral stiffness mutation of large-chassis multi-tower structurewith the mechanical floor

Li Xiaolong1, Sun Xiaoling1,2, Li Xiaowen1, Xue Qiang2, Liu Xiaofan2, Zheng Yue2

（1 College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2 Design Institute of Xi’an University of Architecture and Technology, Xi’an 710055, China）

Abstract: Based on the practical large-chassis multi-tower structure on Shenglong square in Xi’an, the structure characteristics were analyzed as well as the overall deformation and mechanical characteristics under the horizontal earthquakes. If regarding the mechanical floor as a single structural floor, the overall lateral stiffness of the mechanical floor can not meet the requirements of design code, which does harm to the overall mechanical characteristics of the structure. The treatment method of vertical lateral stiffness mutation of the mechanical floor is presented, providing reference for the design of similar projects.

Keywords: large-chassis multi-tower structure; mechanical floor; lateral stiffness ratio; structural design

作者簡(jiǎn)介：李小龍，碩士研究生，Email：357757658@qq.com。

參考文獻(xiàn)

［1］JGJ 3—2010 高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京:中國(guó)建筑工業(yè)出版社, 2011.

［2］GB 50011—2010 建筑抗震設(shè)計(jì)規(guī)范［S］. 北京:中國(guó)建筑工業(yè)出版社, 2010.

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［5］婁宇, 程輝, 施昌. 大底盤上對(duì)稱多塔樓高層建筑的振動(dòng)分析［J］. 建筑結(jié)構(gòu), 2001, 31(4):13-15.