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韓建平，李曉松
(蘭州理工大學防震減災研究所，蘭州730050)[摘要] 結合我國《建筑抗震設計規(guī)范》（送審稿）及日本隔震結構協(xié)會《被動減震結構設計施工手冊》，建立了基于性能的非線性粘滯阻尼器消能減震結構設計方法。選定減震性能目標，確定目標位移降低率；建立主結構（未裝設阻尼器結構）等效單質點體系的減震性能曲線；將確定的粘滯阻尼器損失剛度比和等效支承構件剛度比應用于主結構，確定主結構各樓層粘滯阻尼器參數(shù)。利用該方法對一鋼筋混凝土框架結構進行了減震設計，并采用有限元軟件SAP2000對該結構裝設阻尼器前后進行了時程分析，結果的比較表明該方法是可行的、有效的。
[關鍵詞] 非線性粘滯阻尼器；消能；性能目標；性能曲線；時程分析Performance-based design and analysis of energy-dissipated structures with non-linear viscous dampers
Han Jianping, Li Xiaosong
(Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou 730050, China)Abstract: Based on Draft Code for Seismic Design of Buildings for approval and Design and Construction Manual for Passively Controlled Buildings by Japan Society of Seismic Isolation, performance-based seismic design approach for structures with nonlinear viscous damper is proposed. Firstly, it selects performance target and determines the objective reduction ratio of displacement. Secondly, it establishes the performance curve for the equivalent single degree of freedom system ofthe main structure. Thirdly, it applies the loss stiffness ratio ofthe damper and the stiffness ratio ofthe equivalent supporting components to the main structure and determines the parameters of viscous dampers of each floor. Finally,a reinforced concrete frame structure is designed and this structure with and without dampers are analyzed by SAP2000. Comparison of the results indicates that the proposed approach is feasible and effective.
Keywords: nonlinear viscous damper; energy dissipation; performance target; performance curve; time history analysis
