设置金属阻尼器的某高层建筑耗能减震分析
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摘要
为了研究金属阻尼器在高层建筑中的耗能减震效果,在研究金属阻尼器耗能特性的基础上,利用非线性动力时程分析方法,对使用金属阻尼器的某高层建筑进行了8度大震作用下结构的弹塑性反应分析,对比了建筑物的自振周期和振型,绘制了3种地震波作用下的层间位移角曲线,并作了比较分析。结果表明,金属阻尼器耗能特性较好,高层建筑层间位移角明显减小,墙与连梁的破坏程度减小,达到了良好的耗能减震效果。该成果对金属阻尼器在高层建筑中的应用具有一定的参考意义。
In order to research energy dissipation and earthquake mitigation effect of metal dampers in high-rise building,elastoplastic time history analysis of a high-rise isolated structure was implemented under imput of intensity 8 strong earthquake,and then the authors contrasted natural vibration period and vibration model,ploted interstorey drift angle curve of the structure under the action of three kinds of seismic wave,and carried out an comparative analysis.The calculation results show that energy dissipation characteristics of the metal damper is favorable,the damper decreases obviously interstorey drift angle and the destruction of wall and coupling beam of high-rise building,achieves a good energy dissipation and earthquake mitigation effect.The result obtained can provide a reference to application of metal damper to earthquake isolation of high-rise buildings.
In order to research energy dissipation and earthquake mitigation effect of metal dampers in high-rise building,elastoplastic time history analysis of a high-rise isolated structure was implemented under imput of intensity 8 strong earthquake,and then the authors contrasted natural vibration period and vibration model,ploted interstorey drift angle curve of the structure under the action of three kinds of seismic wave,and carried out an comparative analysis.The calculation results show that energy dissipation characteristics of the metal damper is favorable,the damper decreases obviously interstorey drift angle and the destruction of wall and coupling beam of high-rise building,achieves a good energy dissipation and earthquake mitigation effect.The result obtained can provide a reference to application of metal damper to earthquake isolation of high-rise buildings.
引文
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[2]李宏男,霍林生.结构多维减震控制[M].北京:科学出版社,2008.3:233LI Hongnan,Huo Linsheng.Vibration Control of Multidimensional Structure[M].Beijing:Science Press,2008.3:233
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[5]李钢,李宏男.新型软钢阻尼器的减震性能研究[J].振动与冲击,2006,25(3):66-67.LI Gang,LI Hongnan.Study on vibration reduction of structure with a new type of mild metallic dampers[J].Journal of Vibration and Shock,2006,25(3):66-67
[6]Soong T T.Dargush G F Passive Energy Dissipation Systems in Structural Engineering1997
[7]藤军.结构振动控制的理论、技术和方法[M].北京:科学出版社,2009.7:23TENG Jun.The Theory,Technology and Method for Vibration Control of Structural[M].Beijing:Science Press,2009.7:23
[8]李爱群,高振世.工程结构抗震与防灾[M].南京:东南大学出版社,2003.8LI Aiqun,GAO Zhenshi.The Seismic Resistance and Disaster Prevention of Engineering Structure[M].Nanjing:Southeast universitypress,2003.8
[9]杨佑发,许少乾底部框剪-组合墙多层房屋抗震变形分析[J].世界地震工程,2000.12,16(4).YANG Youfa,XU Shaoqian Seismic deflection behavior of buildings with framed two bottom stories and combined masonry higher stories[J].WorldEarthquake Engineering,2000.12,16(4).
[10]GB50009-2001,建筑结构荷载规范[S].GB50009-2001,Load code for the design of building structures[S].
[2]李宏男,霍林生.结构多维减震控制[M].北京:科学出版社,2008.3:233LI Hongnan,Huo Linsheng.Vibration Control of Multidimensional Structure[M].Beijing:Science Press,2008.3:233
[3]Kelly J M.Skinner R I,Heine A J.Mechanisms of energy absorption in special devices for use in earthquake resistant structures[J].Bulletin ofNew Zealand National Society for Earthquake Engineering,1972,5(3):63-88.
[4]新日本制铁株式会社.新日铁的耐震.耐火建筑构造用钢材[技术编][M].1996,1-28Nippon Steel Corporation.Seismic Resistance of Nippon Steel.Fire-Resistant Steel used in Building Construction[M].1996,1-28
[5]李钢,李宏男.新型软钢阻尼器的减震性能研究[J].振动与冲击,2006,25(3):66-67.LI Gang,LI Hongnan.Study on vibration reduction of structure with a new type of mild metallic dampers[J].Journal of Vibration and Shock,2006,25(3):66-67
[6]Soong T T.Dargush G F Passive Energy Dissipation Systems in Structural Engineering1997
[7]藤军.结构振动控制的理论、技术和方法[M].北京:科学出版社,2009.7:23TENG Jun.The Theory,Technology and Method for Vibration Control of Structural[M].Beijing:Science Press,2009.7:23
[8]李爱群,高振世.工程结构抗震与防灾[M].南京:东南大学出版社,2003.8LI Aiqun,GAO Zhenshi.The Seismic Resistance and Disaster Prevention of Engineering Structure[M].Nanjing:Southeast universitypress,2003.8
[9]杨佑发,许少乾底部框剪-组合墙多层房屋抗震变形分析[J].世界地震工程,2000.12,16(4).YANG Youfa,XU Shaoqian Seismic deflection behavior of buildings with framed two bottom stories and combined masonry higher stories[J].WorldEarthquake Engineering,2000.12,16(4).
[10]GB50009-2001,建筑结构荷载规范[S].GB50009-2001,Load code for the design of building structures[S].
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