分区优化核电站抗震设计谱
|
摘要
以集集地震B类场地(相当于基岩场地)的强震记录为基础,通过分析v/a和ad/v 2(a、v和d分别为地面峰值加速度、速度和位移)的取值及其随地面峰值加速度的变化规律,提出考虑变化的拐点周期值,以实现不同地震动反应谱使用其自身的地面峰值标定.讨论了伪加速度放大系数谱、伪速度放大系数谱和相对位移放大系数谱在所研究的周期范围内的变异性.研究了3类放大系数的概率分布情况,并发现认为放大系数谱值服从对数正态分布的假设存在不妥之处.基于前面分析和讨论,推导出了在不同周期段采用不同放大系数的分区优化标准反应谱,该反应谱具有比现有规范中的设计谱更为一致的概率意义.将此设计谱与各规范中的设计谱作比较,提出了修改我国核电规范中设计谱的参考意见.
Based on the strong accelerograms on site B from the Chi-Chi Earthquake,through the analysis of the values of v/a and ad/v 2(a,v and d are peak acceleration,velocity and displacement of ground motion respec-tively)and their variation parttens against peak ground acceleration,alterable period value of inflection points was put forward to realize the calibration of different response spectra with its own peak ground motion parameters.The variability of spectra of amplification factors,namely amplification factor,pseudo-velocity and relative displace-ment,in the whole interested period,was also discussed.According to the analysis of probability distribution of amplification factors,the common assumption that amplification factor of pseudo-velocity is in accordance with log-normal probability distribution is questionable,Based on the above/previous analysis and discussion,the optimal design spectra,with different amplification factor applied in different period,are specified with more consistent probability.Comparison between this optimal design spectrum and the design spectra specified in codes was made to give reference comments on code revision.
Based on the strong accelerograms on site B from the Chi-Chi Earthquake,through the analysis of the values of v/a and ad/v 2(a,v and d are peak acceleration,velocity and displacement of ground motion respec-tively)and their variation parttens against peak ground acceleration,alterable period value of inflection points was put forward to realize the calibration of different response spectra with its own peak ground motion parameters.The variability of spectra of amplification factors,namely amplification factor,pseudo-velocity and relative displace-ment,in the whole interested period,was also discussed.According to the analysis of probability distribution of amplification factors,the common assumption that amplification factor of pseudo-velocity is in accordance with log-normal probability distribution is questionable,Based on the above/previous analysis and discussion,the optimal design spectra,with different amplification factor applied in different period,are specified with more consistent probability.Comparison between this optimal design spectrum and the design spectra specified in codes was made to give reference comments on code revision.
引文
[1]徐龙军,谢礼立,胡进军.抗震设计谱的发展及相关问题综述[J].世界地震工程,2007,23(2):46-57.Xu Longjun,Xie Lili,Hu Jinjun.The review of devel-opment and certain problems in seismic design spec-tra[J].World Earthquake Engineering,2007,23(2):46-57(in Chinese).
[2]廖振鹏,李大华.设计地震反应谱的双参数标定模型,地震小区划——理论与实践[M].北京:地震出版杜,1989:196-201.Liao Zhenpeng,Li Dahua.Two-Parameter Standardized Model for Design Earthquake Spetra,Seismic Microno-zonation—Theory and Application[M].Beijing:Seismological Press,1989:196-201(in Chinese).
[3]郭玉学,王治山.我国核电厂抗震设计用标准反应谱[J].世界地震工程,1993(2):31-36.Guo Yuxue,Wang Zhishan.Standard spectra for Nu-clear plant design in China[J].World Earthquake Engi-neering,1993(2):31-36(in Chinese).
[4]李杰.几类反应谱的概念差异及其意义[J].世界地震工程,1993(4):9-14.Li Jie.The difference in concept and meaning of several categories of spectra[J].World Earthquake Engineer-ing,1993(4):9-14(in Chinese).
[5]U S Atomic Energy Commission.Regulatory Guide 1.60 Design Response Spectra for Seismic Design of Nuclear Power Plants[S].USA,1973:1-6.
[6]Canadian Standards Association.CAN-N289.3 Design procedures for Seismic Qualifications of CANDU Nu-clear Power Plants[S].Rexdale,Ontario,Canada,1981:11-13.
[7]Newmark N M,Blume J A,Kapur K K.Seismic de-sign spectra for nuclear power plants[J].Journal of the Power Division,1973,99(2):287-303.
[8]Lee Chyi-Tyi,Cheng Chin-Tung,Liao Chi-Wen,et al.Site classification of Taiwan free-field strong-motion sta-tions[J].Bulletin of the Seismological Society of America,2001,91(5):1283-1297.
[9]谢礼立.强震观测与分析原理[M].北京:地震出版社,1982:214-223.Xie Lili.Strong Motion Observation and Analysis The-ory[M].Beijing:Seismological Press,1982:214-233(in Chinese).
[10]Chopra A K.Dynamics of Structures Theory and Applica-tions to Earthquake Engineering[M].2nd ed.Beijing:Tsinghua University Press,2005:197-244.
[11]国家技术监督局.GB 50267—97核电厂抗震设计规范[S].北京:中国计划出版社,1997:7-9.State Bureau of Technical Supervision.GB 50267—97 Code for Seismic Design for Nuclear Power Plants[S].Beijing:China Planning Press,1997:7-9(in Chi-nese).
[12]江近仁,孙景江,陆钦年.以反应谱和功率谱密度函数表征的强震运动统计特性[J].中国地震,1994,10(4):327-340.Jiang Jinren,Sun Jingjiang,Lu Qinnian.Statistic char-acterization of strong ground motion specified by re-sponse spectrum and power spectral density function[J].China Earthqueke,1994,10(4):327-340(in Chi-nese).
[13]夏江,陈清军.基于遗传算法的设计反应谱标定方法[J].力学季刊,2006,27(2):317-322.Xia Jiang,Chen Qingjun.Calibrating method of seismic response spectrum based on genetic algorithm[J].Chi-nese Quarterly of Mechanics,2006,27(2):317-322(in Chinese).
[14]刘红帅.基于小生境遗传算法的设计地震动反应谱标定方法[J].岩土工程学报,2009,31(6):975-97.Liu Hongshuai.Calibrating method for seismic response spectra based on niche genetic algorithm[J].Chinese Journal of Geotechnical Engineering,2009,31(6):975-979(in Chinese).
[2]廖振鹏,李大华.设计地震反应谱的双参数标定模型,地震小区划——理论与实践[M].北京:地震出版杜,1989:196-201.Liao Zhenpeng,Li Dahua.Two-Parameter Standardized Model for Design Earthquake Spetra,Seismic Microno-zonation—Theory and Application[M].Beijing:Seismological Press,1989:196-201(in Chinese).
[3]郭玉学,王治山.我国核电厂抗震设计用标准反应谱[J].世界地震工程,1993(2):31-36.Guo Yuxue,Wang Zhishan.Standard spectra for Nu-clear plant design in China[J].World Earthquake Engi-neering,1993(2):31-36(in Chinese).
[4]李杰.几类反应谱的概念差异及其意义[J].世界地震工程,1993(4):9-14.Li Jie.The difference in concept and meaning of several categories of spectra[J].World Earthquake Engineer-ing,1993(4):9-14(in Chinese).
[5]U S Atomic Energy Commission.Regulatory Guide 1.60 Design Response Spectra for Seismic Design of Nuclear Power Plants[S].USA,1973:1-6.
[6]Canadian Standards Association.CAN-N289.3 Design procedures for Seismic Qualifications of CANDU Nu-clear Power Plants[S].Rexdale,Ontario,Canada,1981:11-13.
[7]Newmark N M,Blume J A,Kapur K K.Seismic de-sign spectra for nuclear power plants[J].Journal of the Power Division,1973,99(2):287-303.
[8]Lee Chyi-Tyi,Cheng Chin-Tung,Liao Chi-Wen,et al.Site classification of Taiwan free-field strong-motion sta-tions[J].Bulletin of the Seismological Society of America,2001,91(5):1283-1297.
[9]谢礼立.强震观测与分析原理[M].北京:地震出版社,1982:214-223.Xie Lili.Strong Motion Observation and Analysis The-ory[M].Beijing:Seismological Press,1982:214-233(in Chinese).
[10]Chopra A K.Dynamics of Structures Theory and Applica-tions to Earthquake Engineering[M].2nd ed.Beijing:Tsinghua University Press,2005:197-244.
[11]国家技术监督局.GB 50267—97核电厂抗震设计规范[S].北京:中国计划出版社,1997:7-9.State Bureau of Technical Supervision.GB 50267—97 Code for Seismic Design for Nuclear Power Plants[S].Beijing:China Planning Press,1997:7-9(in Chi-nese).
[12]江近仁,孙景江,陆钦年.以反应谱和功率谱密度函数表征的强震运动统计特性[J].中国地震,1994,10(4):327-340.Jiang Jinren,Sun Jingjiang,Lu Qinnian.Statistic char-acterization of strong ground motion specified by re-sponse spectrum and power spectral density function[J].China Earthqueke,1994,10(4):327-340(in Chi-nese).
[13]夏江,陈清军.基于遗传算法的设计反应谱标定方法[J].力学季刊,2006,27(2):317-322.Xia Jiang,Chen Qingjun.Calibrating method of seismic response spectrum based on genetic algorithm[J].Chi-nese Quarterly of Mechanics,2006,27(2):317-322(in Chinese).
[14]刘红帅.基于小生境遗传算法的设计地震动反应谱标定方法[J].岩土工程学报,2009,31(6):975-97.Liu Hongshuai.Calibrating method for seismic response spectra based on niche genetic algorithm[J].Chinese Journal of Geotechnical Engineering,2009,31(6):975-979(in Chinese).
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