摘要
1992~2005年,云南地区共发生56次破坏性地震,积累了丰富的震害资料。2005年10月,《地震现场工作第4部分：灾害直接损失评估》（GB/T 18208.4—2005）发布实施,提出简易房屋的概念,并将原有5个破坏等级归并为3个破坏等级。针对这种变化,统计了云南56次地震不同烈度区简易房屋的破坏比,按破坏比对原规定的震害指数进行加权平均,得出简易房屋3个破坏等级的震害指数。
Fifty-six destructive earthquakes occurred in Yunnan from 1992 to 2005,and abundant disaster data accumulated.Post-earthquake Field Works—Part 4：Assessment of Direct Loss came into effect on October 2005,and the class of simple-buildings was put forward in this standard.Thus,the former five damage classes of simple-buildings have been simplified to three classes.In this paper,we calcalate the damage ratio in different seismic regions of 56 earthquakes and do a weighted average of the former seismic damage indexes using the damage ratio.In this way the seismic damage indexes of three damage classes are gained.
出处
《地震研究》
CSCD
北大核心
2011年第1期88-95,共8页
Journal of Seismological Research
基金
地震科学联合基金项目"简易房屋地震失去住所人数与震害指数研究"(A08098)资助
关键词
简易房屋
破坏等级
破坏比
震害指数
加权平均
simple-buildings
damage class
damage ratio
seismic damage index
weighted average
