复杂结构在重复地震序列作用下的损伤性能研究
|
摘要
为了研究复杂结构在多序列地震作用下的累积损伤效应,针对一实际建筑——法门寺合十舍利塔进行了重复地震作用下的弹塑性时程分析,分别采用基于位移和基于Park-Ang损伤模型的指标分析结构在多重地震序列下的损伤累积效应。研究结果表明:基于位移的单参数损伤指标无法较真实地反映结构在重复地震下的累积损伤效应,而基于位移和能量组合的Park-Ang损伤模型指标能较为合理地反映结构的这种累积效应;前次地震作用产生的残余变形对结构在后续地震中的响应有很大的影响,因此计算有损结构的损伤指数时,应考虑结构的初始残余变形对损伤指数的影响。
In this paper,inelastic time-history analyses of the Dagoba in Famen Temple under repeated sequence seismic loads were carried out to study the cumulative damage of this complex structures.The displacement index and the Park-Ang damage model were used for the cumulative damage assessment.The results indicate that the Park-Ang damage index combined with deformation and energy is better than the deformationbased indices for cumulative damage assessment of structures.It is found that the residual deformation induced by former earthquakes may have significant effects on the post-earthquake structural behaviors.Therefore,the initial residual deformation should be considered properly in the calculation of damage indices for existing structures.
In this paper,inelastic time-history analyses of the Dagoba in Famen Temple under repeated sequence seismic loads were carried out to study the cumulative damage of this complex structures.The displacement index and the Park-Ang damage model were used for the cumulative damage assessment.The results indicate that the Park-Ang damage index combined with deformation and energy is better than the deformationbased indices for cumulative damage assessment of structures.It is found that the residual deformation induced by former earthquakes may have significant effects on the post-earthquake structural behaviors.Therefore,the initial residual deformation should be considered properly in the calculation of damage indices for existing structures.
引文
[1]上野宽.日本东北地区太平洋近海地震概况[J].国际地震动态,2012,1:5-6.Ueno Hiroi.Overview of the earthquake of the Pacific coast of Tōhoku in Japan[J].Recent Development in World Seismology,2012,1:5-6.(in Chinese)
[2]中国地震信息网.汶川地震余震分布与统计[EB/OL].2008-08-29.http://www.csi.ac.cn/sichuan/sichuan080-512_16.htm.Chinese Earthquake Information Network.Distribution and statistics of aftershocks of WenChuan Earthquake[EB/OL].2008-08-29.http://www.csi.ac.cn/sichuan/sichuan080512_16.htm.(in Chinese)
[3]吴波,欧进萍.钢筋混凝土结构在主余震作用下的反应与损伤分析[J].建筑结构学报,1993,14(5):45-53.Wu Bo,Ou Jinping.Response and damage assessment of reinforced concrete structure under mainshock-aftershock seismic sequences[J].Journal of Building Structures,1993,14(5):45-53.(in Chinese)
[4]赵金宝.主余震作用下钢筋混凝土框架结构的破坏评估[D].北京:中国地震局地球物理研究所,2005.Zhao Jinbao.Damage assessment of RC frame structures under mainshock-aftershock seismic sequences[D].Beijing:Institution of Geophysics,China Earthquake Administration,2005.(in Chinese)
[5]黄维,钱江,庄彬彬.基于两次推覆分析考虑损伤效应的结构抗震性能评估[J].结构工程师,2011,27(5):111-116.Huang Wei,Qian Jiang,Zhuang Binbin.Seismic performance analysis of structure considering the damage effect based on twice pushover analysis[J].Structural Engineers,2011,27(5):111-116.(in Chinese)
[6]Ruiz-Garcia J,Juan C.Evaluation of drift demands in existing steel frames under as-recorded far-field and near-fault mainshock-aftershock seismic sequences[J].Engineering Structures,2011,33(2):621-634.
[7]Li Q,Ellingwood B R.Performance evaluation and damage assessment of steel frame buildings under mainshock-aftershock sequences[J].Earthquake Engineering and Structure Dynamic,2007,36(3):405427.
[8]Shunsuke O,Sozen M A.Behavior of multistory reinforced concrete frames during earthquakes[D].University of Illinois Urbana,Illionis,USA,1972.
[9]沈祖炎.结构损伤累积分析的研究现状和存在问题[J].同济大学学报,1997,25(2):135-139.Shen Zhuyan.Development and evaluation of researches on damage cumulation analysis for building structures[J].Journal of Tongji University,1997,25(2):135-139.(in Chinese)
[10]Park Y J,Ang H S.Mechanistic seismic damage model for reinforced concrete[J].Journal of Structure Engineering,ASCE,1985,111(4):722-739.
[11]杜修力,欧进萍.建筑结构地震破坏评估模型[J].世界地震工程,1991,7(3):52-58.Du Xiuli,Ou Jinping.Seismic damage assessment model of building structures[J].World Earthquake Engineering,1991,7(3):52-58.(in Chinese)
[12]Chopra A K.Dynamics of structures:theory and applications to earthquake engineering(3ndEdion)[M].USA:Prentice Hall International,2007.
[2]中国地震信息网.汶川地震余震分布与统计[EB/OL].2008-08-29.http://www.csi.ac.cn/sichuan/sichuan080-512_16.htm.Chinese Earthquake Information Network.Distribution and statistics of aftershocks of WenChuan Earthquake[EB/OL].2008-08-29.http://www.csi.ac.cn/sichuan/sichuan080512_16.htm.(in Chinese)
[3]吴波,欧进萍.钢筋混凝土结构在主余震作用下的反应与损伤分析[J].建筑结构学报,1993,14(5):45-53.Wu Bo,Ou Jinping.Response and damage assessment of reinforced concrete structure under mainshock-aftershock seismic sequences[J].Journal of Building Structures,1993,14(5):45-53.(in Chinese)
[4]赵金宝.主余震作用下钢筋混凝土框架结构的破坏评估[D].北京:中国地震局地球物理研究所,2005.Zhao Jinbao.Damage assessment of RC frame structures under mainshock-aftershock seismic sequences[D].Beijing:Institution of Geophysics,China Earthquake Administration,2005.(in Chinese)
[5]黄维,钱江,庄彬彬.基于两次推覆分析考虑损伤效应的结构抗震性能评估[J].结构工程师,2011,27(5):111-116.Huang Wei,Qian Jiang,Zhuang Binbin.Seismic performance analysis of structure considering the damage effect based on twice pushover analysis[J].Structural Engineers,2011,27(5):111-116.(in Chinese)
[6]Ruiz-Garcia J,Juan C.Evaluation of drift demands in existing steel frames under as-recorded far-field and near-fault mainshock-aftershock seismic sequences[J].Engineering Structures,2011,33(2):621-634.
[7]Li Q,Ellingwood B R.Performance evaluation and damage assessment of steel frame buildings under mainshock-aftershock sequences[J].Earthquake Engineering and Structure Dynamic,2007,36(3):405427.
[8]Shunsuke O,Sozen M A.Behavior of multistory reinforced concrete frames during earthquakes[D].University of Illinois Urbana,Illionis,USA,1972.
[9]沈祖炎.结构损伤累积分析的研究现状和存在问题[J].同济大学学报,1997,25(2):135-139.Shen Zhuyan.Development and evaluation of researches on damage cumulation analysis for building structures[J].Journal of Tongji University,1997,25(2):135-139.(in Chinese)
[10]Park Y J,Ang H S.Mechanistic seismic damage model for reinforced concrete[J].Journal of Structure Engineering,ASCE,1985,111(4):722-739.
[11]杜修力,欧进萍.建筑结构地震破坏评估模型[J].世界地震工程,1991,7(3):52-58.Du Xiuli,Ou Jinping.Seismic damage assessment model of building structures[J].World Earthquake Engineering,1991,7(3):52-58.(in Chinese)
[12]Chopra A K.Dynamics of structures:theory and applications to earthquake engineering(3ndEdion)[M].USA:Prentice Hall International,2007.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心