| 基于地震动参数的结构易损性表达方法研究 |
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| 引用本文： | 刘如山,胡少卿,邬玉斌,张美晶.基于地震动参数的结构易损性表达方法研究[J].地震工程与工程振动,2009,29(6). |
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| 作者姓名： | 刘如山 胡少卿 邬玉斌 张美晶 |
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| 作者单位： | 中国地震局,工程力学研究所,黑龙江,哈尔滨,150080 |
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| 基金项目： | 中国地震局重点研究项目《地震保险的经济损失研究》 |
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| 摘 要： | 用贝塔分布函数对给定烈度下结构各个破坏等级的概率分布进行了破坏比概率密度的拟合,以地震动峰值作为地震动参数,根据烈度和加速度峰值的对应关系以对数插值方式计算了在任意一个峰值加速度下结构破坏比的倍塔概率密度分布及各个破坏等级的概率,从而使结构易损性的表达方式由烈度-震害等级构成的二维阶跃性易损性矩阵转化为由地震动参数-破坏比概率密度函数或地震动参数-各破坏等级的概率来表达的方式.试算结果表明,这种转化方法是可行的.本文为震害预测和地震经济损失估计提供参考.
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| 关 键 词： | 贝塔分布函数 烈度 易损性矩阵 震害等级 |
Research on structure vulnerability expression way based on seismic ground motion parameters |
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| LIU Rushan,HU Shaoqing,WU Yubin,ZHANG Meijing.Research on structure vulnerability expression way based on seismic ground motion parameters[J].Earthquake Engineering and Engineering Vibration,2009,29(6). |
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| Authors: | LIU Rushan HU Shaoqing WU Yubin ZHANG Meijing |
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| Institution: | LIU Rushan,HU Shaoqing,WU Yubin,ZHANG Meijing(Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China) |
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| Abstract: | The probability of each damage grade of structure in given intensity is fitted continuously by use of beta distribution function.And according to the corresponding relation between intensity and seismic ground motion parameter,the beta probability density distribution of structure damage ratio and the probability of every damage grade in each acceleration peak value are calculated on the basis of seismic peak motion parameter by logarithm interpolation way.Thus the tradition step distribution way of structu... |
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| Keywords: | Beta distribution function intensity vulnerability matrix earthquake damage grade |
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