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第二代C-B NGA衰减关系的随机误差和不确定性校正
Random error analysis of ground motion attenuation relationship of second generation C-B NGA
【摘要】 用Campbell和Bozorgnia建立的第二代C-B NGA地震动衰减关系模型计算出PGA预测值,分析了在不同PGA范围内的预测值和观测值随机误差的均值μ和随机误差的标准差σ,找出了PGA衰减关系误差分布特点。用新的分段不确定性校正方法,以三个不同地震危险场地为例分析了该方法与传统方法在危险性分析中的差异。
【Abstract】 Second generation C-B NGA ground motion attenuation relationship of Campbell and Bozorgnia was used to count PGA predicted value,the mean value μ and random error σ of predicted and observed values were analyzed in different scales of PGA. The error distribution characteristics of PGA attenuation relationship were found. A new segmented uncertainty correction method was used to analyze the difference between this method and the classic method in three different earthquake risk site example analysis.
【关键词】 NGA;
地震动;
衰减关系;
误差分析;
不确定性校正;
【Key words】 NGA; ground motion; attenuation relationship; error analysis; uncertainty correction;
【Key words】 NGA; ground motion; attenuation relationship; error analysis; uncertainty correction;
【基金】 国家自然科学基金资助项目(51178151;51178435);国家国际科技合作项目(2011DFA21460);黑龙江省教育厅科学技术面上项目(12531441)
- 【文献出处】 黑龙江大学自然科学学报 ,Journal of Natural Science of Heilongjiang University , 编辑部邮箱 ,2015年01期
- 【分类号】P315
- 【被引频次】2
- 【下载频次】52