基于能量的新型消能摇摆结构体系抗震性能研究
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摘要
利用能量法分析新型消能摇摆结构体系在地震动过程中的耗能机制,并对其抗震性能进行系统研究。以某已建成的6层框架结构为研究对象,建立新型消能摇摆结构体系的计算模型,利用Opensees软件获得新型消能摇摆结构体系在不同地震动激励下的动力响应,分析其各子结构的耗能部位及所占比例。结果表明:新型消能摇摆结构体系的耗能机制更为合理,其抗震性能优于传统结构体系,为工程设计和研究提供一些参考。
The focus of this study was the characteristics leading to failure of frame structures in recent major disasters.This study analyzed a new system for energy dissipation using a stiff frame rocking structure.Energy consumption during seismic oscillations was analyzed using the energy method,and a systematic study of the system's the anti-seismic properties was conducted.With a six-floor frame structure as the research object,a calculation model for the new energy dissipation rocking structure was developed.The dynamic responses of the new system under different seismic oscillations were obtained using the OpenSEES software.Energy consumption and its role in the new were analyzed.Results of the research showed that the mechanism for energy consumption in the new rocking structure was more reasonable,and its anti-seismic properties were an improvement over traditional structural systems.
The focus of this study was the characteristics leading to failure of frame structures in recent major disasters.This study analyzed a new system for energy dissipation using a stiff frame rocking structure.Energy consumption during seismic oscillations was analyzed using the energy method,and a systematic study of the system's the anti-seismic properties was conducted.With a six-floor frame structure as the research object,a calculation model for the new energy dissipation rocking structure was developed.The dynamic responses of the new system under different seismic oscillations were obtained using the OpenSEES software.Energy consumption and its role in the new were analyzed.Results of the research showed that the mechanism for energy consumption in the new rocking structure was more reasonable,and its anti-seismic properties were an improvement over traditional structural systems.
引文
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[3]李慧,刘迪,杜永峰,等.基于虚拟激励法的框架-摇摆刚架结构体系的动力可靠度研究[J].振动与冲击,2013,32(23):170-174.LI Hui,LIU Di,DU Yong-feng,et al.Dynamic Reliability of a RC Frame With Rocking of Moment Frames Based on Pseudo Excitation Method[J].Journal of Vibration and Shock,2013,32(23):170-174.(in Chinese)
[4]李春锋,杜永峰,李慧.阻尼连体结构地震响应影响参数研究[J].西北地震学报,2012,34(1):33-38.LI Chun-feng,DU Yong-feng,LI Hui.Study of Seismic Response Influence Parameters on Damping Connective Strucure[J].Northwestern Seismological Journal,2012,34(1):33-38.(in Chinese)
[5]李慧,刘迪,杜永峰.近场多脉冲地震动作用下复合隔震结构抗震性能分析[J].地震工程学报,2013,35(3):563-568.LI Hui,LIU Di,DU Yong-feng.The Seismic Behavior Analysis of Near-field Multi Pulse Ground Motion on Composite Isolated Structure[J].China Earthquake Engineering Journal,2013,35(3):563-568.(in Chinese)
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[7]曹海韵,潘鹏,叶列平.基于推覆分析混凝土框架摇摆墙结构抗震性能研究[J].振动与冲击,2011,30(11):240-245.CAO H Y,PAN P,YE L P.Pushover Analysis of RC Frame Rocking Wall Structure[J].Journal of Vibration and Shock,2011,30(11):240-245.(in Chinese)
[8]Weng Yuen Kam,Stefano Pampanin,Alessandro Palermo,et al.Self Centering Structural Systems With Combination of Hysteretic And Viscous Energy Dissipations[J].Earthquake Engineering and Structural Dynamics,2010,39:1083-1108.
[9]曲哲,和田章,叶列平.摇摆墙在框架结构抗震加固中的应用[J].建筑结构学报,2011,32(9):2-11.QU Z,WADA Akira,YE L P.Seismic Retrofit of Frame Structures Using Rocking Wall System[J].Journal of Building Structures,2011,32(9):2-11.(in Chinese)
[10]MacRae G A,Kimura Y,Roeder C.Effect of Column Stiffness on Braced Frame Seismic Behavior[J].Journal of Structural Engineering,2004,130(3):381-391.
[2]周颖,吕西林.摇摆结构及自复位结构研究综述[J].建筑结构学报究,2011,32(9):1-10.ZHOU Ying,LV Xi-lin.State of the Art on Rocking and Selfcentering Structures[J].Journal of Building Structures,2011,32(9):1-10.(in Chinese)
[3]李慧,刘迪,杜永峰,等.基于虚拟激励法的框架-摇摆刚架结构体系的动力可靠度研究[J].振动与冲击,2013,32(23):170-174.LI Hui,LIU Di,DU Yong-feng,et al.Dynamic Reliability of a RC Frame With Rocking of Moment Frames Based on Pseudo Excitation Method[J].Journal of Vibration and Shock,2013,32(23):170-174.(in Chinese)
[4]李春锋,杜永峰,李慧.阻尼连体结构地震响应影响参数研究[J].西北地震学报,2012,34(1):33-38.LI Chun-feng,DU Yong-feng,LI Hui.Study of Seismic Response Influence Parameters on Damping Connective Strucure[J].Northwestern Seismological Journal,2012,34(1):33-38.(in Chinese)
[5]李慧,刘迪,杜永峰.近场多脉冲地震动作用下复合隔震结构抗震性能分析[J].地震工程学报,2013,35(3):563-568.LI Hui,LIU Di,DU Yong-feng.The Seismic Behavior Analysis of Near-field Multi Pulse Ground Motion on Composite Isolated Structure[J].China Earthquake Engineering Journal,2013,35(3):563-568.(in Chinese)
[6]H wang H H M,Low Y K.Seismic Reliability Analysis of Plane Frame Structures[J].Probabilistic Engineering Mechanics,2003,4(2):74-84.
[7]曹海韵,潘鹏,叶列平.基于推覆分析混凝土框架摇摆墙结构抗震性能研究[J].振动与冲击,2011,30(11):240-245.CAO H Y,PAN P,YE L P.Pushover Analysis of RC Frame Rocking Wall Structure[J].Journal of Vibration and Shock,2011,30(11):240-245.(in Chinese)
[8]Weng Yuen Kam,Stefano Pampanin,Alessandro Palermo,et al.Self Centering Structural Systems With Combination of Hysteretic And Viscous Energy Dissipations[J].Earthquake Engineering and Structural Dynamics,2010,39:1083-1108.
[9]曲哲,和田章,叶列平.摇摆墙在框架结构抗震加固中的应用[J].建筑结构学报,2011,32(9):2-11.QU Z,WADA Akira,YE L P.Seismic Retrofit of Frame Structures Using Rocking Wall System[J].Journal of Building Structures,2011,32(9):2-11.(in Chinese)
[10]MacRae G A,Kimura Y,Roeder C.Effect of Column Stiffness on Braced Frame Seismic Behavior[J].Journal of Structural Engineering,2004,130(3):381-391.
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