基于性能的非线性粘滞阻尼器减震结构设计分析
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摘要
结合我国《建筑抗震设计规范》(送审稿)及日本隔震结构协会《被动减震结构设计施工手册》,建立了基于性能的非线性粘滞阻尼器消能减震结构设计方法。选定减震性能目标,确定目标位移降低率;建立主结构(未装设阻尼器结构)等效单质点体系的减震性能曲线;将确定的粘滞阻尼器损失刚度比和等效支承构件刚度比应用于主结构,确定主结构各楼层粘滞阻尼器参数。利用该方法对一钢筋混凝土框架结构进行了减震设计,并采用有限元软件SAP2000对该结构装设阻尼器前后进行了时程分析,结果的比较表明该方法是可行的、有效的。
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 of the main structure.Thirdly,it applies the loss stiffness ratio of the damper and the stiffness ratio of the 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.
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 of the main structure.Thirdly,it applies the loss stiffness ratio of the damper and the stiffness ratio of the 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.
引文
[1]韩建平,阎茹,李慧.基于性能的黏弹性阻尼器减震结构抗震设计[J].地震工程与工程振动,2008,28(1):175-181.
[2]GB50011-20XX建筑抗震设计规范(送审稿)[S].北京:国家标准《建筑抗震设计规范》管理组,2009.
[3]蒋通译.被动减震结构设计?施工手册[M].北京:中国建筑工业出版社,2008.
[4]蒋通,贺磊.非线性粘滞阻尼器消能结构减振效果分析[J].世界地震工程,2005,21(2):57-63.
[5]笠井和彦,伊藤浩資,渡辺厚.等価線形化手法による一質点弾塑性構造の最大応答予測法[J].日本建築学会構造系論文集,2003,571:53-62.
[6]KASAI K,FU Y,WATANABE A.Passive control systems for seismic damage mitigation[J].ASCE Journal of Structural Engineering,1998,124(5):501-512.
[7]蒋通,贺磊.非线性粘滞阻尼器消能结构设计方法探讨[J].世界地震工程,2007,23(1):134-140.
[2]GB50011-20XX建筑抗震设计规范(送审稿)[S].北京:国家标准《建筑抗震设计规范》管理组,2009.
[3]蒋通译.被动减震结构设计?施工手册[M].北京:中国建筑工业出版社,2008.
[4]蒋通,贺磊.非线性粘滞阻尼器消能结构减振效果分析[J].世界地震工程,2005,21(2):57-63.
[5]笠井和彦,伊藤浩資,渡辺厚.等価線形化手法による一質点弾塑性構造の最大応答予測法[J].日本建築学会構造系論文集,2003,571:53-62.
[6]KASAI K,FU Y,WATANABE A.Passive control systems for seismic damage mitigation[J].ASCE Journal of Structural Engineering,1998,124(5):501-512.
[7]蒋通,贺磊.非线性粘滞阻尼器消能结构设计方法探讨[J].世界地震工程,2007,23(1):134-140.
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