基于Pareto多目标优化的最不利地震动选择
详细信息 查看官网全文
- 英文论文题名：Selection of the most unfavorable ground motion based on Pareto multi-objective optimization
- 论文作者：叶昆 ; 骆江成
- 英文论文作者：Ye Kun ; Luo Jiangcheng ; Huazhong University of science and Technology
- 年：2016
- 作者机构：华中科技大学土木工程与力学学院;
- 论文关键词：最不利地震动 ; 时程分析 ; Pareto多目标优化 ; 地震动强度指标
- 英文论文关键词：most unfavorable ground motion ; nonlinear time history analysis ; Pareto multi-objective optimization ; intensity measure
- 会议召开时间：2016-10-27
- 会议录名称：第九届全国防震减灾工程学术研讨会论文集
- 语种：中文
- 分类号：TU352.11
- 学会代码：OGTY
- 会议名称：第九届全国防震减灾工程学术研讨会
- 会议地点：中国安徽合肥
- 主办单位：中国土木工程学会、中国工程院土木、水利与建筑工程学部、中国土木工程学会防震减灾工程技术推广委员会、合肥工业大学、安徽省住房和城乡建设厅
- 学会名称：中国土木工程学会
- 页数：9
- 文件大小：469k
- 原文格式：O
- 会议级别：全国
摘要
本文提出一种基于Pareto多目标优化的最不利地震动选择方法,用于重要结构的弹塑性时程分析。该方法具体步骤如下:(1)建立能够反映结构所在场地地震风险的实际地震动数据库;(2)通过pushover分析将实际结构转化为等效双线性单自由度体系;(3)基于该单自由度体系进行地震时程分析结果与地震动强度指标的相关性分析,从中选择一组相关系数最高的5个强度指标;(4)基于Pareto多目标优化的思想选择相应的最不利地震动。以一榀五层钢筋混凝土平面框架结构作为数值算例验证本文所提方法的有效性,同时与其他最不利地震动选择方法进行比较,进一步证明了本文所提出的最不利地震动选择方法能够筛选出对结构具有更高破坏力的地震动集合。
In this paper,the procedure of selecting the most unfavorable ground motions for the nonlinear time history analysis of important structures is proposed.The detailed steps are as follows:(1)Establish the real recorded ground motions database according to the seismic risk of the site;(2)Transform the MDOF structure into bilinear ESDOF system by pushover analysis;(3) By performing correlation analyses based on ESDOF system,select five intensity measures which highly correlated with structural response;(4)Select the most unfavorable ground motion based on Pareto multi-objective optimization.The selection procedure is illustrated by a five-story RC frame structure model.And its efficiency is also verified through the example.Finally through comparing with other methods of selecting the most unfavorable ground motions,it can be proved that the proposed method can efficiently select subset of ground motions with high damage potential.
In this paper,the procedure of selecting the most unfavorable ground motions for the nonlinear time history analysis of important structures is proposed.The detailed steps are as follows:(1)Establish the real recorded ground motions database according to the seismic risk of the site;(2)Transform the MDOF structure into bilinear ESDOF system by pushover analysis;(3) By performing correlation analyses based on ESDOF system,select five intensity measures which highly correlated with structural response;(4)Select the most unfavorable ground motion based on Pareto multi-objective optimization.The selection procedure is illustrated by a five-story RC frame structure model.And its efficiency is also verified through the example.Finally through comparing with other methods of selecting the most unfavorable ground motions,it can be proved that the proposed method can efficiently select subset of ground motions with high damage potential.
引文
[1]中华人民共和国国家标准,建筑抗震设计规范GB 50011-2010[S],北京:中国建筑工业出版社,2010.(National Standards of the People's Republic of China,code for seismic design of buildings GB50011-2010[S].Beijing:China Architecture&Building Press(in Chinese)).
[2]谢礼立,翟长海.最不利设计地震动研究[J].地震学报,2003(03):第250-261页.(XIE Lili,ZHAI Changhai.Study on the severest real ground motion for seismic design and analysis[J].Acta Seismologica Sinica,2003(3):p.250-261.(in Chinese)).
[3]Zhai C H and Xie L L,A new approach of selecting real input ground motions for seismic design:The most unfavourable real seismic design ground motions[J].Earthquake Engineering&Structural Dynamics,2007.36(8):p.1009-1027.
[4]Zhai C H,et al.Selection of the Most Unfavorable Real Ground Motions for Low-and Mid-rise RC Frame Structures[J].Journal of Earthquake Engineering,2013.17(8):p.1233-1251.
[5]施炜等,基于天际线查询的最不利地震动选取方法研究[J].建筑结构学报,2013.34(7):第20-28页.(SHI Wei,et al.Study on skyline-based the most unfavorable ground motion selection method[J].Journal of Building Structures,2013.34(7):p.20-28.(in Chinese)).
[6]Shi W.,et al.,Skyline-based ground motion selection method for nonlinear time history analysis of building structures[J].Earthquake Engineering&Structural Dynamics,2013.42(9):p.1361-1373.
[7]Yang D,J.Pan and G.Li,Non-structure-specific intensity measure parameters and characteristic period of near-fault ground motions[J].Earthquake Engineering and Structural Dynamics,2009.38(11):p.1257-1280.
[8]Riddell R.On ground motion intensity indices[J].EARTHQUAKE SPECTRA,2007.23(1):p.147-173.
[9]Baker J W and Cornell C A.A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon[J].Earthquake Engineering and Structural Dynamics,2005.34(10):p.1193-1217.
[10]Baker J W.Probabilistic structural response assessment using vector-valued intensity measures[J].Earthquake Engineering and Structural Dynamics,2007.36(13):p.1861-1883.
[11]Ricart J,et al.Multiobjective Harmony Search Algorithm Proposals[J].Electronic Notes in Theoretical Computer Science,2011.281:p.51-67.
[12]梁兴文,结构抗震性能设计理论与方法[M].科学出版社,2011(Liang Xingwen.Theory and method of structural seismic performance design[M].Science Press,2011(in Chinese)).
[13]Jeong S and A S Elnashai.Probabilistic fragility analysis parameterized by fundamental response quantities[J].Engineering Structures,2007.29(6):p.1238-1251.
[14]ATC-40 Seismic evaluation and retrofit of concrete buildings[S].1996:Redwood City(California).
[15]Pacific Earthquake Engineering Research Center(PEER)[DB/OL].http://peer.berkeley.edu/.
[2]谢礼立,翟长海.最不利设计地震动研究[J].地震学报,2003(03):第250-261页.(XIE Lili,ZHAI Changhai.Study on the severest real ground motion for seismic design and analysis[J].Acta Seismologica Sinica,2003(3):p.250-261.(in Chinese)).
[3]Zhai C H and Xie L L,A new approach of selecting real input ground motions for seismic design:The most unfavourable real seismic design ground motions[J].Earthquake Engineering&Structural Dynamics,2007.36(8):p.1009-1027.
[4]Zhai C H,et al.Selection of the Most Unfavorable Real Ground Motions for Low-and Mid-rise RC Frame Structures[J].Journal of Earthquake Engineering,2013.17(8):p.1233-1251.
[5]施炜等,基于天际线查询的最不利地震动选取方法研究[J].建筑结构学报,2013.34(7):第20-28页.(SHI Wei,et al.Study on skyline-based the most unfavorable ground motion selection method[J].Journal of Building Structures,2013.34(7):p.20-28.(in Chinese)).
[6]Shi W.,et al.,Skyline-based ground motion selection method for nonlinear time history analysis of building structures[J].Earthquake Engineering&Structural Dynamics,2013.42(9):p.1361-1373.
[7]Yang D,J.Pan and G.Li,Non-structure-specific intensity measure parameters and characteristic period of near-fault ground motions[J].Earthquake Engineering and Structural Dynamics,2009.38(11):p.1257-1280.
[8]Riddell R.On ground motion intensity indices[J].EARTHQUAKE SPECTRA,2007.23(1):p.147-173.
[9]Baker J W and Cornell C A.A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon[J].Earthquake Engineering and Structural Dynamics,2005.34(10):p.1193-1217.
[10]Baker J W.Probabilistic structural response assessment using vector-valued intensity measures[J].Earthquake Engineering and Structural Dynamics,2007.36(13):p.1861-1883.
[11]Ricart J,et al.Multiobjective Harmony Search Algorithm Proposals[J].Electronic Notes in Theoretical Computer Science,2011.281:p.51-67.
[12]梁兴文,结构抗震性能设计理论与方法[M].科学出版社,2011(Liang Xingwen.Theory and method of structural seismic performance design[M].Science Press,2011(in Chinese)).
[13]Jeong S and A S Elnashai.Probabilistic fragility analysis parameterized by fundamental response quantities[J].Engineering Structures,2007.29(6):p.1238-1251.
[14]ATC-40 Seismic evaluation and retrofit of concrete buildings[S].1996:Redwood City(California).
[15]Pacific Earthquake Engineering Research Center(PEER)[DB/OL].http://peer.berkeley.edu/.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |