钢混框剪高层结构地震能量分布及耗散研究
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摘要
为了研究复杂建筑结构在地震作用下地震能量的分配与耗散机制,基于能量平衡原理和PERFORM 3D软件对钢筋混凝土框架-剪力墙高层结构模型进行了动力弹塑性能量时程分析,得到了框剪高层结构在罕遇地震作用下地震能量的输入、分布及耗散规律;考察了地震动特性对钢混框剪高层结构地震能量输入及分配的影响,确定了地震耗能占输入能的比例时程;分析了结构阻尼比和结构延性对框剪高层结构地震输入能、阻尼耗能和滞回耗能及其耗能比例的影响规律,确定了阻尼比对滞回耗能和延性比对阻尼耗能的交互影响;研究了框剪高层结构地震滞回耗能沿结构竖向分布和沿横向构件内部分配的规律,确定了竖向刚度分布对结构地震滞回耗能的影响;揭示了钢混框剪高层结构地震输入能量及其分布规律。所得结论可为基于能量平衡原理的抗震设计理论在复杂钢筋混凝土高层建筑结构实际工程中的运用提供参考。
In order to investigate the mechanism of seismic energy distribution and energy dissipation of complex building structure,the time history analysis of dynamic elastoplastic energy for a reinforced concrete(RC)frame-wall high-rise structure was made by using software PERFORM 3Dbased on the principle of energy balance.Meanwhile,the rule of earthquake input energy and its distribution were obtained for RC frame-wall structure under rare earthquake.The influences of ground motion characteristics on the earthquake input energy and its distribution in the RC frame-wall high-rise structure were examined,the time histories of the ratios of seismic energy dissipation to input energy were obtained.The influences of damping ratios and ductility ratios on the earthquake input energy,damping energy and hysteretic energy and its ratios to input energy were discussed,and the mutual influences of damping ratios on the hysteretic energy and the ductility ratios on the damping energy were determined.The distributions of the hysteretic energy along vertical direction and among RC members of the building structure wereresearched,and the effects of lateral stiffness on the hysteretic energy were confirmed for the frame-wall high-rise structure.The rules of earthquake input energy and its distribution among energy components were indicated for RC frame-wall high-rise structure.The obtained conclusion for seismic design theory based on the energy balance principle can provide reference for the engineering practice of complex RC high-rise building structure.
In order to investigate the mechanism of seismic energy distribution and energy dissipation of complex building structure,the time history analysis of dynamic elastoplastic energy for a reinforced concrete(RC)frame-wall high-rise structure was made by using software PERFORM 3Dbased on the principle of energy balance.Meanwhile,the rule of earthquake input energy and its distribution were obtained for RC frame-wall structure under rare earthquake.The influences of ground motion characteristics on the earthquake input energy and its distribution in the RC frame-wall high-rise structure were examined,the time histories of the ratios of seismic energy dissipation to input energy were obtained.The influences of damping ratios and ductility ratios on the earthquake input energy,damping energy and hysteretic energy and its ratios to input energy were discussed,and the mutual influences of damping ratios on the hysteretic energy and the ductility ratios on the damping energy were determined.The distributions of the hysteretic energy along vertical direction and among RC members of the building structure wereresearched,and the effects of lateral stiffness on the hysteretic energy were confirmed for the frame-wall high-rise structure.The rules of earthquake input energy and its distribution among energy components were indicated for RC frame-wall high-rise structure.The obtained conclusion for seismic design theory based on the energy balance principle can provide reference for the engineering practice of complex RC high-rise building structure.
引文
[1]秋山宏.基于能量平衡的建筑结构抗震设计[M].叶列平,裴星洙,译.北京:清华大学出版社,2010.AKIYAMA H.Earthquake Resistant Design Method for Buildings Based on Energy Balance[M].Translated by YE Lie-ping,PEI Xing-zhu.Beijing:Tsinghua University Press,2010.
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[4]HOUSNER G W.Limit Design of Structures to Resist Earthquakes[C]//EERI.Proceedings of the 1st World Conference on Earthquake Engineering.Berkeley:Earthquake Engineering Research Institute,1956:1-13.
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[6]AKIYAMA H.Earthquake Resistant Limit State Design for Buildings[M].Tokyo:University of Tokyo Press,1985.
[7]徐培蓁,叶列平.日本《基于能量抗震设计规程》介绍[J].工程抗震与加固改造,2010,32(3):59-66.XU Pei-zhen,YE Lie-ping.Introduction of Technological Standard for Earthquake-resistant Calculation Method for Buildings Based on Energy Balance in Japan[J].Earthquake Resistant Engineering and Retrofitting,2010,32(3):59-66.
[8]FAJFAR P,VIDIC T.Consistent Inelastic Design Spectra:Hysteretic and Input Energy[J].Earthquake Engineering&Structural Dynamics,1994,23(5):523-537.
[9]FAJFAR P,GASPERSIC P.The N2 Method for the Seismic Damage Analysis of RC Buildings[J].Earthquake Engineering&Structural Dynamics,1996,25(1):31-46.
[10]AKBAS B,SHEN J,HAO H.Energy Approach in Performance-based Seismic Design of Steel Moment Resisting Frames for Basic Safety Objective[J].The Structural Design of Tall Buildings,2001,10(3):193-217.
[11]CHOU C C,UANG C M.A Procedure for Evaluating Seismic Energy Demand of Framed Structures[J].Earthquake Engineering&Structural Dynamics,2003,32(2):229-244.
[12]BENAVENT-CLIMENT A.An Energy-based Damage Model for Seismic Response of Steel Structures[J].Earthquake Engineering&Structural Dynamics,2007,36(8):1049-1064.
[13]LEELATAVIWAT S,SAEWON W,GOEL S C.Application of Energy Balance Concept in Seismic Evaluation of Structures[J].Journal of Structural Engineering,2009,135(2):113-121.
[14]樊长林,张善元,路国运.基于能量被动耗能结构抗震设计方法的研究[J].地震工程与工程振动,2013,33(4):140-147.FAN Chang-lin,ZHANG Shan-yuan,LU Guo-yun.Study on Energy Based Seismic Design Method for Structure with Passive Energy Dissipation System[J].Journal of Earthquake Engineering and Engineering Vibration,2013,33(4):140-147.
[15]程光煜,叶列平.弹塑性SDOF系统的地震输入能量谱[J].工程力学,2008,25(2):28-39.CHENG Guang-yu,YE Lie-ping.Earthquake Input Energy Spectrum for Inelastic SDOF Systems[J].Engineering Mechanics,2008,25(2):28-39.
[16]缪志伟,叶列平.钢筋混凝土框架-联肢剪力墙结构的地震能量分布研究[J].工程力学,2010,27(2):130-141.MIAO Zhi-wei,YE Lie-ping.Study on Distribution of Cumulative Hysteretic Energy in Reinforced Concrete Frame-coupled Shear Wall[J].Engineering Mechanics,2010,27(2):130-141.
[2]白绍良,黄宗明,肖明葵.结构抗震设计的能量分析方法研究述评[J].建筑结构,1997,27(4):54-58.BAI Shao-liang,HUANG Zong-ming,XIAO Mingkui.Research Review on Energy Analysis Method in Seismic Design of Structure[J].Building Structure,1997,27(4):54-58.
[3]孙国华,顾强,何若全,等.弹性SDOF体系地震动输入能量的影响因素分析[J].建筑科学与工程学报,2011,28(4):63-68.SUN Guo-hua,GU Qiang,HE Ruo-quan,et al.Analysis of Influence Factor of Earthquake Input Energy of Elastic SDOF Systems[J].Journal of Architecture and Civil Engineering,2011,28(4):63-68.
[4]HOUSNER G W.Limit Design of Structures to Resist Earthquakes[C]//EERI.Proceedings of the 1st World Conference on Earthquake Engineering.Berkeley:Earthquake Engineering Research Institute,1956:1-13.
[5]HOUSNER G W.Behavior of Structures During Earthquake[J].Journal of the Engineering Mechanics Division,1959,85(4):109-129.
[6]AKIYAMA H.Earthquake Resistant Limit State Design for Buildings[M].Tokyo:University of Tokyo Press,1985.
[7]徐培蓁,叶列平.日本《基于能量抗震设计规程》介绍[J].工程抗震与加固改造,2010,32(3):59-66.XU Pei-zhen,YE Lie-ping.Introduction of Technological Standard for Earthquake-resistant Calculation Method for Buildings Based on Energy Balance in Japan[J].Earthquake Resistant Engineering and Retrofitting,2010,32(3):59-66.
[8]FAJFAR P,VIDIC T.Consistent Inelastic Design Spectra:Hysteretic and Input Energy[J].Earthquake Engineering&Structural Dynamics,1994,23(5):523-537.
[9]FAJFAR P,GASPERSIC P.The N2 Method for the Seismic Damage Analysis of RC Buildings[J].Earthquake Engineering&Structural Dynamics,1996,25(1):31-46.
[10]AKBAS B,SHEN J,HAO H.Energy Approach in Performance-based Seismic Design of Steel Moment Resisting Frames for Basic Safety Objective[J].The Structural Design of Tall Buildings,2001,10(3):193-217.
[11]CHOU C C,UANG C M.A Procedure for Evaluating Seismic Energy Demand of Framed Structures[J].Earthquake Engineering&Structural Dynamics,2003,32(2):229-244.
[12]BENAVENT-CLIMENT A.An Energy-based Damage Model for Seismic Response of Steel Structures[J].Earthquake Engineering&Structural Dynamics,2007,36(8):1049-1064.
[13]LEELATAVIWAT S,SAEWON W,GOEL S C.Application of Energy Balance Concept in Seismic Evaluation of Structures[J].Journal of Structural Engineering,2009,135(2):113-121.
[14]樊长林,张善元,路国运.基于能量被动耗能结构抗震设计方法的研究[J].地震工程与工程振动,2013,33(4):140-147.FAN Chang-lin,ZHANG Shan-yuan,LU Guo-yun.Study on Energy Based Seismic Design Method for Structure with Passive Energy Dissipation System[J].Journal of Earthquake Engineering and Engineering Vibration,2013,33(4):140-147.
[15]程光煜,叶列平.弹塑性SDOF系统的地震输入能量谱[J].工程力学,2008,25(2):28-39.CHENG Guang-yu,YE Lie-ping.Earthquake Input Energy Spectrum for Inelastic SDOF Systems[J].Engineering Mechanics,2008,25(2):28-39.
[16]缪志伟,叶列平.钢筋混凝土框架-联肢剪力墙结构的地震能量分布研究[J].工程力学,2010,27(2):130-141.MIAO Zhi-wei,YE Lie-ping.Study on Distribution of Cumulative Hysteretic Energy in Reinforced Concrete Frame-coupled Shear Wall[J].Engineering Mechanics,2010,27(2):130-141.
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