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(1 天津城市建設(shè)管理職業(yè)技術(shù)學(xué)院, 天津 300134; 2 天津城建大學(xué)天津市土木建筑結(jié)構(gòu)防護與加固重點實驗室, 天津 300384)
[摘要]針對某高層建筑結(jié)構(gòu),利用ETABS有限元分析軟件建立計算模型,探討原結(jié)構(gòu)和設(shè)置黏滯阻尼器的減震結(jié)構(gòu)在多遇地震作用下的抗震性能,通過進行五種黏滯阻尼器布設(shè)方案下結(jié)構(gòu)響應(yīng)的比較,以不同的控制函數(shù)為目標,進而優(yōu)化黏滯阻尼器的布設(shè)位置。結(jié)果表明,黏滯阻尼器在保證不增加結(jié)構(gòu)剛度的基礎(chǔ)上,通過提供附加阻尼,能有效協(xié)助結(jié)構(gòu)耗散地震輸入的能量,降低了結(jié)構(gòu)的動力響應(yīng),起到了很好的減震效果。同時,在考慮黏滯阻尼器的布設(shè)位置時,應(yīng)根據(jù)結(jié)構(gòu)的實際動力響應(yīng)和變形特性綜合確定,并且考慮結(jié)構(gòu)的功能需求以獲得最佳的減震效果。
[關(guān)鍵詞]高層結(jié)構(gòu); 黏滯阻尼器; 地震響應(yīng); 變形特性
中圖分類號:TQ336-4+2,TU973文獻標識碼:A文章編號:1002-848X(2016)23-0024-05
Research on seismic response and project optimization of high-rise energy-dissipated building
Duan Meiling1, Yang Dejian 2
(1 Tianjin Urban Construction Management & Vocation Technology College, Tianjin 300134, China; 2 The Key Laboratory of Civil Engineering and Architectural Structure Protection and Reinforcement in Tianjin, Tianjin Cheng Jian University, Tianjin 300384, China)
Abstract:Aimed at a high-rise building structure, finite element analysis software ETABS was used to establish calculation model to explore the seismic performances of original and the energy-dissipated structure installed with viscous damper under the frequent earthquake. In addition, by comparing the structural responses of five different schemes with different layouts of viscous dampers, the installation location of viscous damper was optimized aiming at different control functions. The results show that viscous dampers, based on guaranteeing constant structural stiffness, can provide additional damping to effectively assist the structure to dissipate energy of earthquake input, and to reduce the dynamic response of the structure. Viscous dampers provide a remarkable damping effect. At the same time, while considering the installation location of viscous dampers, it should be confirmed combining the actual dynamic response with structural deformation characteristics comprehensively, and structural functional requirements should also be considered to obtain the best damping effect.
Keywords:high-rise building structure; viscous damper; seismic response; deformation characteristics
作者簡介:段美齡,碩士,Email:451057087@qq.com。