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DEVELOPMENT OF A STATISTICAL STRONG-MOTION EVALUATION METHOD CONSIDERING REGIONAL VARIATION OF SOURCE AND PATH EFFECTS IN THE TOHOKU REGION, JAPAN

机译：日本东北地区来源与路径效应的区域变化统计强运动评估方法的发展

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A ground motion prediction equation for strong motion spectra is empirically developed for the Tohoku region,Japan. Spectral inversion analyses of S-wave Fourier spectra and 5% damped response spectra of identical datasets are conducted. Based on the results of the spectral inversion, PGA, PGV and response spectrum are modeled as a function of moment magnitude, stress drop, distance with three types of Q, and Vs30. It is found that the variance of the source term is significantly decreased by adding stress drop as a parameter. This indicates that taking into account regional variations of source radiation strength is effective to reduce the uncertainty in strong motion evaluation.

机译：根据经验，针对日本东北地区开发了用于强运动谱的地面运动预测方程。对相同数据集的S波傅里叶光谱和5％阻尼响应光谱进行了光谱反演分析。根据光谱反演的结果，将PGA，PGV和响应光谱建模为力矩大小，应力降，三种Q类型和Vs30的距离的函数。发现通过增加应力降作为参数，源项的方差显着减小。这表明考虑到源辐射强度的区域变化可有效减少强运动评估中的不确定性。

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《Innovation, practice, safety》|2008年|1-8|共1页
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作者
XIE Lin; LI Fan-zhang;
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原文格式 PDF
正文语种
中图分类耐震、隔震、防爆结构;工程地震;
关键词
spectral inversion, ground motion prediction equation, Tohoku region, Japan;

机译：频谱反演，地震动预测方程，东北地区，日本;

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DEVELOPMENT OF A STATISTICAL STRONG-MOTION EVALUATION METHOD CONSIDERING REGIONAL VARIATION OF SOURCE AND PATH EFFECTS IN THE TOHOKU REGION, JAPAN

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