[1]丁宝荣,杜轲,孙景江,等.考虑不确定性的地震烈度与地震动参数关系研究[J].地震工程与工程振动,2018,(02):106-114.[doi:10.13197/j.eeev.2018.02.106.dingbr.012]
 DING Baorong,DU Ke,SUN Jingjiang,et al.Study on the relationship between seismic intensity and ground motion parameters considering uncertainty[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(02):106-114.[doi:10.13197/j.eeev.2018.02.106.dingbr.012]
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考虑不确定性的地震烈度与地震动参数关系研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年02
页码:
106-114
栏目:
论文
出版日期:
2018-08-03

文章信息/Info

Title:
Study on the relationship between seismic intensity and ground motion parameters considering uncertainty
作者:
丁宝荣1 杜轲2 孙景江2 骆欢2
1. 哈尔滨学院, 黑龙江省地下工程技术重点实验室, 黑龙江 哈尔滨 150080;
2. 中国地震局 工程力学研究所, 中国地震局地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080
Author(s):
DING Baorong1 DU Ke2 SUN Jingjiang2 LUO Huan2
1. Key Laboratory of Underground Engineering Technology, Harbin University, Harbin 150080, China;
2. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
关键词:
不确定性地震烈度地震动参数地震灾害评估
Keywords:
uncertaintyseismic intensityground motion parametersearthquake hazard assessment
分类号:
P315
DOI:
10.13197/j.eeev.2018.02.106.dingbr.012
摘要:
采用97次地震中800个强震动观测台站所获得的强震动记录及震后调查地震烈度作为基础数据,得到地震烈度与地震动参数PGA和PGV并不是一个确定性的对应关系,不确定性是一种客观存在,提出考虑不确定性的地震烈度与地震动参数关系研究。研究结果表明logPGA和logPGV的频数分布图在数据多的情况下符合正态分布,进而给出了考虑不确定性的地震烈度与地震动参数的概率公式,并给出了各个烈度下的参数拟合方法及结果。最后给出了新的考虑不确定性的地震烈度与地震动参数的概率公式在烈度快速评估中的应用。根据贝叶斯公式可以由某一场地的台站记录到的地震动参数来估计其地震烈度的可能性,即概率大小。根据某地区所有台站点的地震烈度期望与标准差,可得到整个地区的地震烈度评估期望图和标准差图,并给出了新疆呼图壁6.2级地震烈度评估的实例应用。
Abstract:
Based on both instrumental ground motion parameters and macroseismic intensity from 97 earthqukes which occurred during the period of 1933-2014 in the domestic and abroad, it is concluded that the relationships between the macroseismic intensity values and PGA, PGV is not a deterministic approaches. There is a great deal of uncertainty about the relationships between the macroseismic intensity values and instrumental ground motion parameters. Probabilistic relationship was developed to quantify these uncertainties. As the frequency distributions of logPGA and logPGV are consistent with the normal distribution, a new probabilistic formula of macroseismic intensity and ground motion parameters is established. Finally, the new probabilistic formulas are used for the rapid evaluation of the seismic intensity. According to the Bayesian formula, the possibility of seismic intensity can be estimated by the ground motion parameters recorded by a site station. According to the expectation and standard deviation of seismic intensity at the stations in a certain area, the expectation and standard deviation of the seismic intensity assessment of the whole area can be obtained. The application of the earthquake intensity assessment is used by Hutubi Ms6.2 earthquake.

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备注/Memo

备注/Memo:
收稿日期:2017-05-20;改回日期:2017-08-17。
基金项目:中央级公益性研究所基本科研业务费专项(2016B04,2016A05);国家自然科学基金青年基金项目(51408563);哈尔滨学院青年博士科研启动基金项目(HUDF2016201);黑龙江省留学回国人员专项(2017QD0045)
作者简介:丁宝荣(1985-),女,讲师,博士,主要从事结构抗震研究,地震烈度与地震动参数关系研究.E-mail:dinging04551@126.com
通讯作者:杜轲(1985-),男,副研究员,博士,主要从事结构线性和非线性地震反应分析等高层结构抗震研究.E-mail:duke@iem.ac.cn
更新日期/Last Update: 1900-01-01