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胡 凱1,2， 朱惠德1， 倪建公1
（1 中船第九設(shè)計研究院工程有限公司，上海 200063；2 同濟大學(xué)土木工程學(xué)院，上海 200092）[摘要] 超高層建筑由于各部分構(gòu)件阻尼特性不同形成非線性阻尼，在計算分析中的影響不可忽略。結(jié)合月星環(huán)球博覽中心復(fù)雜高層公建項目，分別采用規(guī)范推薦值、等效粘滯阻尼比以及全樓0. 02阻尼比來考慮頂部鋼塔樓和主體結(jié)構(gòu)不同的阻尼耗能特性，研究了非線性阻尼對帶有頂部鋼塔的高層混合結(jié)構(gòu)的影響，并為今后同類項目的抗震設(shè)計提供一定的參考和依據(jù)。
[關(guān)鍵詞] 混合結(jié)構(gòu)；頂部塔樓；非線性阻尼；粘滯阻尼比
中圖分類號：TU971 文獻標(biāo)識碼：A 文章編號：1002-848X(2012) Sl-0343-03Influence of nonlinear damping on the hybrid high-rise bIulding
Hu Kai1,2, Zhu Huide1, Ni Jiangong1
(1 China Shipbuilding NRDI Engineering Co., Ltd., Shanghai 200063, China; 2 Tongji University, Shanghai 200092, China)Abstract: As a result of different damping characteristics, nonlinear damping existed in hybrid structure cannot be neglected in the calculation. Code-recommended value, simpMed value (0.02) and viscous damping ratio were taken respectively to study the influence of nonlinear damping of the lugh-rise building with steel frame tower at the top. Some references are also provided for related designs in the future.
Keywords: hybrid structure; tower built at the top; nonlinear damping; viscous damping ratio
