【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。更多还原

【Abstract】 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.更多还原