竖向设计反应谱特征参数的研究
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摘要
以国内川滇甘陕地区263个有详细场地资料的强震台站获得的802条竖向地震动加速度记录为研究对象,利用差分进化算法对每条竖向加速度反应谱进行拟合,分析不同场地类别、震级和震中距对竖向加速度反应谱特征参数取值的影响。统计结果表明,竖向设计反应谱的起始周期和衰减指数基本不受各因素的影响,平台值和特征周期均随场地类别的提高而增大,随震级的增大而增大,特征周期随震中距的增大而增大,而平台值随震中距的增大而减小。本文综合考虑各因素的影响,最终给出竖向加速度反应谱特征参数的建议取值,为我国建筑抗震规范中竖向地震作用的修订提供依据。
Based on 802 vertical ground motion acceleration collected records,at 263 sites in Sichuan,Yunnan,Gansu and Shanxi,the characteristic parameters of vertical acceleration response spectra are calculated by differential evolution and categorized into parameters as different earthquake magnitude,epicentral distance and soil sites. To investigate the effect of different parameter on characteristic parameters,the statistical analysis is performed. The results show that the starting period and attenuation exponent of the response spectrum of vertical design are not influenced by various factors,both the platform value and the characteristic period increase with the site and earthquake magnitude,the characteristic period increases with the epicentral distance,the platform decreases with the increase of epicentral distance. By considering the effect of various factors,some advices on the characteristic parameters are put-forward,aiming to provide theoretical basis for the revision of vertical seismic action in seismic code of buildings in China.
Based on 802 vertical ground motion acceleration collected records,at 263 sites in Sichuan,Yunnan,Gansu and Shanxi,the characteristic parameters of vertical acceleration response spectra are calculated by differential evolution and categorized into parameters as different earthquake magnitude,epicentral distance and soil sites. To investigate the effect of different parameter on characteristic parameters,the statistical analysis is performed. The results show that the starting period and attenuation exponent of the response spectrum of vertical design are not influenced by various factors,both the platform value and the characteristic period increase with the site and earthquake magnitude,the characteristic period increases with the epicentral distance,the platform decreases with the increase of epicentral distance. By considering the effect of various factors,some advices on the characteristic parameters are put-forward,aiming to provide theoretical basis for the revision of vertical seismic action in seismic code of buildings in China.
引文
[1]钱培风.结构抗震分析[M].北京:地震出版社,1983Qian Pei-feng.Analysis of Structural Aseismic[M].Beijing:Seismological Press,1983(in Chinese)
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[4]高杰,闫帅平,陈振,等.竖向加速度设计反应谱研究[J].土木工程与管理学报,2012,(1):93~96Gao Jie,Yan Shuai-ping,Chen Zhen,et al.Research on Vertical Acceleration Design Response Spectrum[J].Journal of Civil Engineering and Management,2012,(1):93~96(in Chinese)
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[6]赵培培,王振宇,薄景山,等.川滇甘陕地区设计反应谱特征周期的统计分析[J].世界地震工程,2017,33(2):97~104Zhao Pei-pei,Wang Zhen-yu,Bo Jing-shan,et al.Statistical Analysis of Characteristic Periods of Design Response Spectra in Sichuan,Yunnan,Gansu and Shanxi[J].Chinese Journal of World Earthquake Engineering,2017,33(2):97~104(in Chinese)
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[8]耿淑伟.抗震设计规范中地震作用的规定[D].哈尔滨,中国地震局工程力学研究所,2005Geng Shu-wei.Earthquake Action Provision in Seismic Design Code[D].Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2005(in Chinese)
[9]赵培培,王振宇,薄景山.利用差分进化算法标定设计反应谱[J].地震工程与工程振动,2017,(2):45~50Zhao Pei-pei,Wang Zhen-yu,Bo Jing-shan.Utilizing Differential Evolution to Calibrate Seismic Design Response Spectrum[J].Earthquake Engineering and Engineering Vibration,2017,(2):45~50(in Chinese)
[10]GB 50011-2010,建筑抗震设计规范[S]GB 50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
[11]GB 18306-2015,《中国地震动参数区划图》宣贯教材[M].北京:中国标准出版社,2015GB 18306-2015,Propaganda and Implementation Material of Seismic Ground Motion Paraments Zonation Map of China[M].Beijing:Standards Press of China,2015(in Chinese)
[12]周正华,周雍年,赵刚.强震近场加速度峰值比和反应谱统计分析[J].地震工程与工程振动,2002,(3):15~18Zhou Zheng-hua,Zhou Yong-nian,Zhao Gang.Statistical Analysis of Peak Ratios and Response Spectra of NearField Accelerograms[J].Earthquake Engineering and Engineering Vibration,2002,(3):15~18(in Chinese)
[2]齐娟,罗开海.竖向地震标准设计反应谱曲线研究[J].工程抗震与加固改造,2016,38(5):44~49Qi Juan,Luo Kai-ha.Study of the Vertical Earthquake Standard Response Spectra Curve[J].Earthquake Resistant Engineering and Retrofitting,2016,38(5):44~49(in Chinese)
[3]周正华,林淋,等.竖向地震动反应谱[J].防灾减灾工程学报,2007,27(4):33~36Zhou Zheng-hua,Lin Lin,et al.The Response Spectrum of Vertical Ground Motion[J].Journal of Disaster Prevention and Mitigation,2007,(4):33~36(in Chinese)
[4]高杰,闫帅平,陈振,等.竖向加速度设计反应谱研究[J].土木工程与管理学报,2012,(1):93~96Gao Jie,Yan Shuai-ping,Chen Zhen,et al.Research on Vertical Acceleration Design Response Spectrum[J].Journal of Civil Engineering and Management,2012,(1):93~96(in Chinese)
[5]徐龙军,谢礼立.竖向地震动加速度反应谱特性[J].地震工程与工程振动,2007,27(6):17~23Xu Long-jun,Xie Li-li.Characteristics of Vertical Acceleration Response Spectra[J].Earthquake Engineering and Engineering Vibration,2007,27(6):17~23(in Chinese)
[6]赵培培,王振宇,薄景山,等.川滇甘陕地区设计反应谱特征周期的统计分析[J].世界地震工程,2017,33(2):97~104Zhao Pei-pei,Wang Zhen-yu,Bo Jing-shan,et al.Statistical Analysis of Characteristic Periods of Design Response Spectra in Sichuan,Yunnan,Gansu and Shanxi[J].Chinese Journal of World Earthquake Engineering,2017,33(2):97~104(in Chinese)
[7]齐娟,罗开海,等.竖向地震动特性的统计分析[J].地震工程与工程振动,2014,34(S1):253~260Qi Juan,Luo Kai-hai.Statistical Analysis on Characteristics of Vertical Ground Motions[J].Earthquake Engineering and Engineering Vibration,2014,34(S1):253~260(in Chinese)
[8]耿淑伟.抗震设计规范中地震作用的规定[D].哈尔滨,中国地震局工程力学研究所,2005Geng Shu-wei.Earthquake Action Provision in Seismic Design Code[D].Harbin:Institute of Engineering Mechanics,China Earthquake Administration,2005(in Chinese)
[9]赵培培,王振宇,薄景山.利用差分进化算法标定设计反应谱[J].地震工程与工程振动,2017,(2):45~50Zhao Pei-pei,Wang Zhen-yu,Bo Jing-shan.Utilizing Differential Evolution to Calibrate Seismic Design Response Spectrum[J].Earthquake Engineering and Engineering Vibration,2017,(2):45~50(in Chinese)
[10]GB 50011-2010,建筑抗震设计规范[S]GB 50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
[11]GB 18306-2015,《中国地震动参数区划图》宣贯教材[M].北京:中国标准出版社,2015GB 18306-2015,Propaganda and Implementation Material of Seismic Ground Motion Paraments Zonation Map of China[M].Beijing:Standards Press of China,2015(in Chinese)
[12]周正华,周雍年,赵刚.强震近场加速度峰值比和反应谱统计分析[J].地震工程与工程振动,2002,(3):15~18Zhou Zheng-hua,Zhou Yong-nian,Zhao Gang.Statistical Analysis of Peak Ratios and Response Spectra of NearField Accelerograms[J].Earthquake Engineering and Engineering Vibration,2002,(3):15~18(in Chinese)