减震调谐液体阻尼器参数优化设计
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摘要
将深水调谐液体阻尼器(TLD)作为以单一振型反应为主的建筑结构地震荷载作用下的被动减震装置,通过建立并求解TLD参数优化设计目标函数,得到最优参数实用设计表达式.同时,引入了结构-TLD系统等效阻尼比概念,给出了相应于TLD最优设计参数的等效阻尼比设计表达式.最后通过数值算例,验证了等效阻尼比表达式的适用性.
A deep water tuned liquid damper(TLD) is used as a passive control device for reducing a dynamic response of structure whose responses are dominated by a single model under earthquake loading.The practical equations for the optimal parameters of the TLD are obtained by formulating the objective function of the TLD's optimum parameters.Meanwhile,equivalent damping ratio of structure-TLD system is introduced and the equations of the equivalent damping ratio with respect to the optimum parameters of TLD are presented.Finally,the applicability of the equations for the equivalent damping ratio is verified by numerical examples.
A deep water tuned liquid damper(TLD) is used as a passive control device for reducing a dynamic response of structure whose responses are dominated by a single model under earthquake loading.The practical equations for the optimal parameters of the TLD are obtained by formulating the objective function of the TLD's optimum parameters.Meanwhile,equivalent damping ratio of structure-TLD system is introduced and the equations of the equivalent damping ratio with respect to the optimum parameters of TLD are presented.Finally,the applicability of the equations for the equivalent damping ratio is verified by numerical examples.
引文
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[2]Sun L M,Fujino Y,Pacheco B M,et al.Nonlinear waves and dy-namic pressure in rectangular tuned liquid damper(TLD):Simula-tion and experimental verification[J].Structure Engineering andEarthquake Engineering:JSCE,1989,6(2):81.
[3]Modi V J,Welt F,Irani M B.On the suppressing of vibrations us-ing nutaion dampers[J].J of Wind Engng and Ind Aerodyn,1990,33:273.
[4]宗刚,楼梦麟,牛伟星,等.调谐液体阻尼器对桩应力影响的振动台实验[J].同济大学学报:自然科学版,2004,32(8):981.ZONG Gang,LOU Menglin,NIU Weixing,et al.Shaking tabelmodel experiment for effet of tuned liquid dampers on stress ofpiles[J].Journal of Tongji University:Natural Science,2004,32(8):981.
[5]贾影,李宏男,李玉成.调液阻尼器液体动水压力的模拟[J].地震工程与工程振动,1998,18(3):82.JIA Ying,LI Hongnan,LI Yucheng.Simulation of dynamic liquidpressure for tuned liquid damper[J].Earthquake Engineering andEngineering Vibration,1998,18(3):82.
[6]王翎羽,陈星,安国亭,等.矩形TLD减震作用的定量分析方法[J].建筑结构学报,1995,16(3):29.WANG Lingyu,CHEN Xing,AN Guoting,et al.A quantitativemethod for analyzing the reducing vibration effect of rectangulartuned liquid damper(TLD)[J].Journal of Building Structures,1995,16(3):29.
[7]瞿伟廉.高层建筑和高耸结构的风振控制设计[M].武汉:武汉测绘科技大学出版社,1991.QU Weilian.Design of vibration control for the high-rise andtowering structures under wind load[M].Wuhan:Wuhan Tech-nical Unversity of Surveying and Mapping Press,1991.
[8]宗刚.结构TLD减震的优化设计方法研究及应用[D].上海:同济大学土木工程学院,2005.ZONG Gang.The study on the optimal design method and applica-tion of TLD for suppressing seismic responses of structures[D].Shanghai:School of Civil Engineering,Tongji University,2005.
[9]Rene W L.Optimal tuned mass dampers for buildings[J].Journalof the Structural Division:ASCE,1979,105(12):2766.
[2]Sun L M,Fujino Y,Pacheco B M,et al.Nonlinear waves and dy-namic pressure in rectangular tuned liquid damper(TLD):Simula-tion and experimental verification[J].Structure Engineering andEarthquake Engineering:JSCE,1989,6(2):81.
[3]Modi V J,Welt F,Irani M B.On the suppressing of vibrations us-ing nutaion dampers[J].J of Wind Engng and Ind Aerodyn,1990,33:273.
[4]宗刚,楼梦麟,牛伟星,等.调谐液体阻尼器对桩应力影响的振动台实验[J].同济大学学报:自然科学版,2004,32(8):981.ZONG Gang,LOU Menglin,NIU Weixing,et al.Shaking tabelmodel experiment for effet of tuned liquid dampers on stress ofpiles[J].Journal of Tongji University:Natural Science,2004,32(8):981.
[5]贾影,李宏男,李玉成.调液阻尼器液体动水压力的模拟[J].地震工程与工程振动,1998,18(3):82.JIA Ying,LI Hongnan,LI Yucheng.Simulation of dynamic liquidpressure for tuned liquid damper[J].Earthquake Engineering andEngineering Vibration,1998,18(3):82.
[6]王翎羽,陈星,安国亭,等.矩形TLD减震作用的定量分析方法[J].建筑结构学报,1995,16(3):29.WANG Lingyu,CHEN Xing,AN Guoting,et al.A quantitativemethod for analyzing the reducing vibration effect of rectangulartuned liquid damper(TLD)[J].Journal of Building Structures,1995,16(3):29.
[7]瞿伟廉.高层建筑和高耸结构的风振控制设计[M].武汉:武汉测绘科技大学出版社,1991.QU Weilian.Design of vibration control for the high-rise andtowering structures under wind load[M].Wuhan:Wuhan Tech-nical Unversity of Surveying and Mapping Press,1991.
[8]宗刚.结构TLD减震的优化设计方法研究及应用[D].上海:同济大学土木工程学院,2005.ZONG Gang.The study on the optimal design method and applica-tion of TLD for suppressing seismic responses of structures[D].Shanghai:School of Civil Engineering,Tongji University,2005.
[9]Rene W L.Optimal tuned mass dampers for buildings[J].Journalof the Structural Division:ASCE,1979,105(12):2766.
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