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    吳耀輝¹   婁  宇²   李?lèi)?ài)群¹   卞朝東¹
   （1 東南大學(xué)土木工程學(xué)院  南京210096；2 中國(guó)電子工程設(shè)計(jì)院  北京 100840）

[提要]  大底盤(pán)多塔樓結(jié)構(gòu)是一種復(fù)雜結(jié)構(gòu)體系，其抗震設(shè)計(jì)方法與傳統(tǒng)結(jié)構(gòu)體系有較大的不同。綜述了大底盤(pán)多塔樓結(jié)構(gòu)的分類(lèi)、動(dòng)力分析模型、動(dòng)力特性以及抗震設(shè)計(jì)方法，進(jìn)一步分析了多塔結(jié)構(gòu)振型參與系數(shù)的物理力學(xué)概念，探討了常用結(jié)構(gòu)分析軟件對(duì)其的適用性，指出了有待進(jìn)一步研究的課題。
[關(guān)鍵詞]  大底盤(pán)多塔樓結(jié)構(gòu)  動(dòng)力分析模型  動(dòng)力特性  抗震設(shè)計(jì)方法  振型參與系數(shù)

The multi-tower structure with enlarged base is a kind of complicated structure system of which the aseismic design method is different from the traditional system considerably. The classification, the dynamic analysis models, the dynamic properties and the aseismic design methods of this structure system are summarized. The mechanism concept of the participating coefficient of vibration mode for this structure is further analyzed and the suitability of the common structural analysis softwares for it is discussed. Finally, the subjects for further study are pointed out.
Keywords: multi-tower structure; enlarged base; dynamic analysis models; dynamic properties; aseismic design methods; participating coefficient; vibration mode