仪器烈度计算方法的初步研究

英文篇名：Preliminary Study on Method to Calculate Instrument Seismic Intensity
中文刊名：山西地震
英文刊名：Earthquake Research in Shanxi
作者：陈琳 ; 张明 ; 董奕 ; 王辉山 ; 于威宇 ; 付再杨
英文作者：CHEN Lin1 ; ZHANG Ming2 ; DONG Yi1 ; WANG Hui-shan1 ; YU Wei-yu1 ; FU Zai-yang1(1.Earthquake Administration of Fujian Province ; Fuzhou ; Fujian 350003 ; China ; 2.Haerbin Institute of Technology ; Haerbin ; Heilongjiang 150006 ; China)
中文关键词：地震烈度 ; 仪器烈度 ; PGA ; PGV
英文关键词：Seismic intensity ; Instrument intensity ; PGA ; PGV
出版日期：2011-04-15
机构：福建省地震局;哈尔滨工业大学;
年：2011
期：02
出版单位：山西地震

摘要

现行中国地震烈度表中,给出了Ⅴ度以上烈度区水平向地面运动峰值加速度(PGA)和峰值速度(PGV)两个物理参数与地震烈度的参考关系。当分别用PGA和PGV计算仪器烈度时,计算结果与现场调查烈度相符率很低。文中提出了基于相符率的加权方案,利用PGA和PGV综合评定烈度。评定结果表明,相符率有较大提高,说明该方法能有效地使仪器烈度更加接近宏观烈度。
The current China Seismic Intensity Table gives the relationship between the two physical parameters,PGA and PGV of horizontal ground motion,and the seismic intensity for seismic area with intensity over Ⅴdegree.However,when PGA and PGV are separately used to calculate the instrument intensity,there are usually some differences between calculation results and related field survey intensities.Therefore,One weighting method using both PGA and PGV to evaluate the intensity is proposed in this paper.The results indicate that it can make much improvement,i.e.making the instrument intensity much closer to the filed investigated intensity.

引文

[1]David J.Wald,V.Quitoriano,T.H.Heaton,H.Kanamori,and C.W.Scrivner.Trinet“ShakeMaps”:Rapid Generationof Peak Ground Motion and Intensity Maps for Earthquakes in Sounthern California[J].Earthquake Spectra,1999.
    [2]张红才.基于地震监测台网资料的震动图及震动烈度研究[D].中国地震局工程力学研究所硕士学位论文.2008.
    [3]袁一凡.由地震动三要素确定地震动强度(烈度)的研究[J].中国地震局工程力学研究所报告,1998.
    [4]Joyner W,D Boore.Peak horizontal acceleration and velocityfrom strong-motion records including records from the 1979Imperial Valley,California,earthquake[J].BSSA,1981.
    [5]康兰池.大震烈度速报系统的应用技术研究[D].福州大学博士学位论文,2010.