晋冀蒙交界区农村房屋建筑震害矩阵研究  

Research on rural structure damage matrix for the border area of Shanxi,Hebei and Inner Mongolia

作　　者：李华玥[1] 聂高众[1] 邓砚[1] 安基文[1] 范熙伟[1] 周军学 

机构地区：[1]中国地震局地质研究所,北京100029 [2]广西壮族自治区地震局,广西南宁530022

出　　处：《自然灾害学报》2017年第5期174-182,共9页Journal of Natural Disasters

基　　金：大中城市震后综合救灾对策研究(2016QJG15);中国地震局地质研究所基本科研业务专项(IGCEA1552)~~

摘　　要：根据收集到的《中国大陆地震灾害损失评估汇编》和1989—2016年晋冀蒙交界区成灾地震的震害记录和相关数据,对农村房屋结构归类分析,给出低烈度下各类房屋的震害矩阵。采用贝塔概率密度函数拟合方法,对震害矩阵中结构破坏比的概率密度分布进行拟合,得到高烈度下各破坏等级的概率值,最终获得完整震害矩阵。结果显示,相比南北地震带地区和我国整体各类房屋建筑震害情况,研究区各烈度下不同建筑结构震害情况均较为严重;经贝塔概率密度分布函数所得破坏概率整体上符合破坏比分布特征,所得结果更能接近研究区建筑物的震后真实破坏情况,可用于未来震害预测工作。Vulnerability of different rural structures are classified and analyzed to acquire the damage matrixes of different structure categories for the low earthquake intensity areas based on the records of China earthquake disaster loss evaluation assembly and historical earthquakes from 1989 to 2016 at the border area of Shanxi,Hebei and Inner Mongolia. For the high intensity areas,the earthquake damage probability of each damage grade of structures are fitted by beta distribution function. Thus the damage matrixes of rural structures are built. The results show that,compared with the national standard matrix,the earthquake damage is more serious for different intensities and structures in the study area. In addition,based on Beta distribution function,the calculated damage ratio is basically conforming to the real conditions after earthquakes. This damage matrix provides a reference for the earthquake damage prediction in this area.

关 键 词：震害矩阵 贝塔分布 破坏概率 震害等级 破坏比 

分 类 号：P315.92[天文地球—地震学] X4[天文地球—固体地球物理学]