川滇甘陕地区反应谱平台值的统计分析
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摘要
本文利用近十年我国川滇甘陕地区有场地资料的2 388条水平向强震记录,采用差分进化算法对水平向加速度反应谱进行拟合,计算得到了每一条加速度反应谱的平台值。将强震记录按照场地类别、震级和震中距进行分类,统计分析了不同情况下的加速度反应谱平台值。结果表明,川滇甘陕地区的水平向加速度反应谱平台值随着场地类别的提高而增大,随着震级的增大而增大,随着震中距的增大而减小,在相同场地类别下反应谱平台值随着设计基本地震加速度的增大而增大。最后在统计的基础上,本文还给出了川滇甘陕地区的Ⅰ、Ⅱ、Ⅲ场地的加速度反应谱平台值的均值以及场地影响系数,并与第五代地震区划图的场地影响系数进行了对比。
Based on 2388 strong ground motions, collected at sites in Sichuan, Yunnan,Gansu and Shaanxi.Simulation of acceleration response spectrum,the platform values response spectrum are extracted according to differential evolution and categorized into parameters. the authors analyze the average flat values with different earthquake magnitude, differen epicental distance and different site conditions. The results show that the average flat values of acceleration response spectra increase with the site becoming soft and earthquake magnitude. If epicentral distance increases, then the average flat values of acceleration response spectra decreases. The value of the response spectrum platform increases with the increase of the basic seismic acceleration of the design under the same site. Finally, on the basis of the statistics, the average flat values of acceleration response spectra and the effect coefficient of the site under classⅠ,Ⅱ and Ⅲ site were gained in Sichuan, Yunnan, Gansu and Shaanxi. The result of this paper is compared with the site influence coefficient of the fifth generation seismic zoning map.
Based on 2388 strong ground motions, collected at sites in Sichuan, Yunnan,Gansu and Shaanxi.Simulation of acceleration response spectrum,the platform values response spectrum are extracted according to differential evolution and categorized into parameters. the authors analyze the average flat values with different earthquake magnitude, differen epicental distance and different site conditions. The results show that the average flat values of acceleration response spectra increase with the site becoming soft and earthquake magnitude. If epicentral distance increases, then the average flat values of acceleration response spectra decreases. The value of the response spectrum platform increases with the increase of the basic seismic acceleration of the design under the same site. Finally, on the basis of the statistics, the average flat values of acceleration response spectra and the effect coefficient of the site under classⅠ,Ⅱ and Ⅲ site were gained in Sichuan, Yunnan, Gansu and Shaanxi. The result of this paper is compared with the site influence coefficient of the fifth generation seismic zoning map.
引文
[1] GB50011—2010, 建筑抗震设计规范[S]. 北京: 中国建筑工业出版社, 2010.GB50011—2010, Code for Seismic Design of Building[S]. Beijing: China Architecture & Building Press, 2010.
[2] 李小军, 彭青, 刘文忠. 设计地震动参数确定中的场地影响考虑[J]. 世界地震工程, 2001, 17(4): 34-41.LI Xiaojun, PENG Qing, LIU Wenzhong. Consideration of site effects for determination of design earthquake ground motion parameters[J]. World Earthquake Engineering, 2001, 17(4): 34-41. (in Chinese)
[3] 薄景山, 吴兆营, 翟庆生, 等. 三种土层结构反应谱平台值的统计分析[J]. 地震工程与工程振动, 2004, 24(2): 23-29.BO Jingshan, WU Zhaoying, ZHAI Qingsheng, et al. Statistical analysis on flat section values of response spectra in three kinds of soil layer constructions[J]. Earthquake Engineering and Engineering Dynamics, 2004, 24( 2): 23-29. (in Chinese)
[4] 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, 2005.GENG Shuwei. Earthquake Action Provision in Seismic Design Code[D]. Harbin : Institute of Engineering Mechanics, China Earthquake Administration, 2005. (in Chinese)
[5] 吕红山, 赵凤新. 适用于中国场地分类的地震动反应谱放大系数[J]. 地震学报, 2007, 29(1): 67-81.LV Hongshan, ZHAO Fengxin. Amplificatory coefficient of earthquake ground motion response spectrum applicable for Chinese site types[J]. Acta Seismologica Sinica, 2007, 29(1): 67-81. (in Chinese)
[6] 郭恩, 郭永刚. 场地类别划分与抗震设计反应谱的研究[J]. 山西建筑, 2007, 33(32): 16-17.GUO En, GUO Yonggang. Research on court sorts division and anti-quaking design reacting spectrum[J]. Shanxi Architecture, 2007, 33(32): 16-17. (in Chinese)
[7] 赵艳, 郭明珠, 李化明, 等. 对比分析中国有关场地条件对设计反应谱最大值的影响[J]. 地震地质, 2009, 31(1): 186-196.ZHAO Yan, GUO Mingzhu, LI Huaming, et al. Contrast analysis of effect of site condition on the maximum of design response spectra[J]. Seismology and Geology, 2009, 31(1): 186-196. (in Chinese)
[8] 郭锋, 吴东明, 许国富, 等. 场地条件对抗震设计反应谱最大值的影响[J]. 土木工程与管理学报, 2011, 28(1): 69-72.GUO Feng, WU Dongming, XU Guofu, et al. Effect of site condition on the maximum value of seismic desige response spectrum[J]. Journal of Civil Engineering and Management, 2011, 28(1): 69-72. (in Chinese)
[9] 李平, 薄景山, 孙有为, 等. 场地类型对反应谱平台值的影响[J]. 地震工程与工程振动, 2011, 31(1): 25-29.LI Ping, BO Jingshan, SUN Youwei, et al. Effects of site types on flat section values of response spectra[J]. Earthquake Engineering and Engineering Dynamics, 2011, 31(1): 25-29.
[10] 郭晓云, 薄景山, 巴文辉. 汶川地震不同场地反应谱平台值统计分析[J]. 地震工程与工程振动, 2012, 32(4): 54-61.GUO Xiaoyun, BO Jingshan, BA Wenhui. Statistical analysis of peak flat values of response spectra in different site conditions based on wenchuan strong motions[J]. Earthquake Engineering and Engineering Dynamics, 2012, 32(4): 54-61. (in Chinese)
[11] 赵万松, 耿淑伟. 基于设计地震分组的反应谱平台值研究[J]. 工程抗震与加固改造, 2016, 38(5): 38-43.ZHAO Wansong, GENG Shuwei. Research on the platform values of response spectra based on design earthquake classification[J]. Earthquake Resistant Engineering and Retrofitting, 2016, 38(5): 38-43. (in Chinese)
[12] 高孟潭. GB18306—2015, 中国地震动参数区划图宣贯材料[M]. 北京: 中国质检出版社, 2015.GAO Mengtan. Propaganda and Implemention Material of Seismic Ground Motion Parameters Zonation Map of China(GB 18306—2015)[M]. Beijing: China Zhijian Publishing House, Standards Press of China, 2015. (in Chinese)
[13] 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): 97-104.ZHAO Peipei, WANG Zhenyu, BO Jingshan, et al. Statistical analysis of characteristic periods of design response spectra in Sichuan, Yunnan, Gansu and Shaanxi[J]. World Earthquake Engineering, 2017, 33(2): 97-104. (in Chinese)
[14] 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, 26(5): 45-50.ZHAO Peipei, WANG Zhenyu, BO Jingshan. Utilizing differential evolution to calibrate seismic design response spectrum[J]. Earthquake Engineering and Engineering Dynamics, 2017, 26(5): 45-50. (in Chinese)
[15] 赵培培. 设计反应谱拟合方法研究及特征参数统计[D]. 哈尔滨: 中国地震局工程力学研究所, 2017.ZHAO Peipei. Statistics of Characteristic Parameters and Research on Fitting Method of Design Response Spectrum[D]. Harbin: Institute of Engineering Mechanics, China Earthquake Administration, 2017. (in Chinese)
[2] 李小军, 彭青, 刘文忠. 设计地震动参数确定中的场地影响考虑[J]. 世界地震工程, 2001, 17(4): 34-41.LI Xiaojun, PENG Qing, LIU Wenzhong. Consideration of site effects for determination of design earthquake ground motion parameters[J]. World Earthquake Engineering, 2001, 17(4): 34-41. (in Chinese)
[3] 薄景山, 吴兆营, 翟庆生, 等. 三种土层结构反应谱平台值的统计分析[J]. 地震工程与工程振动, 2004, 24(2): 23-29.BO Jingshan, WU Zhaoying, ZHAI Qingsheng, et al. Statistical analysis on flat section values of response spectra in three kinds of soil layer constructions[J]. Earthquake Engineering and Engineering Dynamics, 2004, 24( 2): 23-29. (in Chinese)
[4] 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, 2005.GENG Shuwei. Earthquake Action Provision in Seismic Design Code[D]. Harbin : Institute of Engineering Mechanics, China Earthquake Administration, 2005. (in Chinese)
[5] 吕红山, 赵凤新. 适用于中国场地分类的地震动反应谱放大系数[J]. 地震学报, 2007, 29(1): 67-81.LV Hongshan, ZHAO Fengxin. Amplificatory coefficient of earthquake ground motion response spectrum applicable for Chinese site types[J]. Acta Seismologica Sinica, 2007, 29(1): 67-81. (in Chinese)
[6] 郭恩, 郭永刚. 场地类别划分与抗震设计反应谱的研究[J]. 山西建筑, 2007, 33(32): 16-17.GUO En, GUO Yonggang. Research on court sorts division and anti-quaking design reacting spectrum[J]. Shanxi Architecture, 2007, 33(32): 16-17. (in Chinese)
[7] 赵艳, 郭明珠, 李化明, 等. 对比分析中国有关场地条件对设计反应谱最大值的影响[J]. 地震地质, 2009, 31(1): 186-196.ZHAO Yan, GUO Mingzhu, LI Huaming, et al. Contrast analysis of effect of site condition on the maximum of design response spectra[J]. Seismology and Geology, 2009, 31(1): 186-196. (in Chinese)
[8] 郭锋, 吴东明, 许国富, 等. 场地条件对抗震设计反应谱最大值的影响[J]. 土木工程与管理学报, 2011, 28(1): 69-72.GUO Feng, WU Dongming, XU Guofu, et al. Effect of site condition on the maximum value of seismic desige response spectrum[J]. Journal of Civil Engineering and Management, 2011, 28(1): 69-72. (in Chinese)
[9] 李平, 薄景山, 孙有为, 等. 场地类型对反应谱平台值的影响[J]. 地震工程与工程振动, 2011, 31(1): 25-29.LI Ping, BO Jingshan, SUN Youwei, et al. Effects of site types on flat section values of response spectra[J]. Earthquake Engineering and Engineering Dynamics, 2011, 31(1): 25-29.
[10] 郭晓云, 薄景山, 巴文辉. 汶川地震不同场地反应谱平台值统计分析[J]. 地震工程与工程振动, 2012, 32(4): 54-61.GUO Xiaoyun, BO Jingshan, BA Wenhui. Statistical analysis of peak flat values of response spectra in different site conditions based on wenchuan strong motions[J]. Earthquake Engineering and Engineering Dynamics, 2012, 32(4): 54-61. (in Chinese)
[11] 赵万松, 耿淑伟. 基于设计地震分组的反应谱平台值研究[J]. 工程抗震与加固改造, 2016, 38(5): 38-43.ZHAO Wansong, GENG Shuwei. Research on the platform values of response spectra based on design earthquake classification[J]. Earthquake Resistant Engineering and Retrofitting, 2016, 38(5): 38-43. (in Chinese)
[12] 高孟潭. GB18306—2015, 中国地震动参数区划图宣贯材料[M]. 北京: 中国质检出版社, 2015.GAO Mengtan. Propaganda and Implemention Material of Seismic Ground Motion Parameters Zonation Map of China(GB 18306—2015)[M]. Beijing: China Zhijian Publishing House, Standards Press of China, 2015. (in Chinese)
[13] 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): 97-104.ZHAO Peipei, WANG Zhenyu, BO Jingshan, et al. Statistical analysis of characteristic periods of design response spectra in Sichuan, Yunnan, Gansu and Shaanxi[J]. World Earthquake Engineering, 2017, 33(2): 97-104. (in Chinese)
[14] 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, 26(5): 45-50.ZHAO Peipei, WANG Zhenyu, BO Jingshan. Utilizing differential evolution to calibrate seismic design response spectrum[J]. Earthquake Engineering and Engineering Dynamics, 2017, 26(5): 45-50. (in Chinese)
[15] 赵培培. 设计反应谱拟合方法研究及特征参数统计[D]. 哈尔滨: 中国地震局工程力学研究所, 2017.ZHAO Peipei. Statistics of Characteristic Parameters and Research on Fitting Method of Design Response Spectrum[D]. Harbin: Institute of Engineering Mechanics, China Earthquake Administration, 2017. (in Chinese)