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震源机制和场地条件对近场强震地面运动特性的影响 被引量:18

Effects of Focal Mechanism and Site Condition on Ground Motion Characteristics of Strong Earthquakes in Near Field
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摘要 将欧洲数百条地震动记录按震级、震中距、场地类别及震源机制等条件分类,通过对地震动记录加速度峰值比、加速度峰值衰减规律及反应谱比等内容的统计分析,研究了震源机制、场地类别等因素对竖向地震动的影响。结果表明,震源机制和场地类别这两种因素在近场区对竖向地震动特性有显著的影响。 According to magnitude, epicenter distance, focal mechanism and site type, we sorted Europe' s hundreds of earthquake records. Through the statistical analysis on the ratio of vertical to horizontal peak accelerations, PGA attenuation relationship and response spectra ratio of these strong ground motion data, we studied the influences of site condition and focal mechanism on vertical ground motion. The results show that the influences of site condition and focal mechanism are remarkable in near site.
出处 《地震研究》 CSCD 北大核心 2006年第3期256-263,共8页 Journal of Seismological Research
基金 国家自然科学基金资助项目(50408005)资助.
关键词 加速度峰值比 衰减规律 反应谱比 场地条件 震源机制 acceleration peak ratio, attenuation relationship, response spectra ratio, site condition, focal mechanism
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