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[1]王文才,尹志文,田秀丰,等.2018年云南通海2次5.0级地震强震动记录特征及其场地反应分析*[J].地震研究,2019,42(04):635-641.
 WANG Wencai,YIN Zhiwen,TIAN Xiufeng,et al.Strong Motion Record Characteristics and Site Response Analysis of the Tonghai MS5.0 Earthquake Sequence in Yunnan province,2018[J].Journal of Seismological Research,2019,42(04):635-641.
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2018年云南通海2次5.0级地震强震动记录特征及其场地反应分析*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
42
期数:
2019年04期
页码:
635-641
栏目:
出版日期:
2019-12-15

文章信息/Info

Title:
Strong Motion Record Characteristics and Site Response Analysis of the Tonghai MS5.0 Earthquake Sequence in Yunnan province,2018
作者:
王文才尹志文田秀丰徐 钦石文兵江志杰
(甘肃兰州地球物理国家野外科学观测研究站,甘肃 兰州 730000)
Author(s):
WANG WencaiYIN ZhiwenTIAN XiufengXU QinSHI WenbingJIANG Zhijie
(Lanzhou National Geophysical Observation and Research Station,Lanzhou 730000,Gansu,China)
关键词:
通海5.0级地震 反应谱 衰减关系 场地效应 非线性反应
Keywords:
-
分类号:
P315.914
DOI:
-
摘要:
2018年8月13日和14日云南通海县相继发生2次5.0级地震,中国数字强震动台网的41个(13日)和30个(14日)强震台站在2次地震中共捕获到213条三分向加速度记录,给出近场台站的地震动参数,绘制了震中附近区域峰值加速度等值线图,其长轴呈WS—EN方向展布。将实际观测数据与几种常用地震动衰减关系对比,发现霍俊荣和胡聿贤(1992)的衰减预测模型能更好地反映此次地震影响场。将不同震中距的5个台站反应谱对比,并与我国设计反应谱比较,拟合出不同周期谱加速度的衰减特性,总结了地震的反应谱基本特征。最后基于主震和多次余震观测记录,运用HVSR谱比法分析了3个典型台站的场地效应,并对其是否发生非线性反应作了初步判断。
Abstract:
A major earthquake of MS5.0 and aftershock of MS5.0 occurred successively on August 13 and 14,2018,Tonghai County,Yunnan Province.There are 41 and 30 strong motion stations which located in this region have been fully triggered in the main and aftershock.213 records of three-component acceleration were obtained by NSMONS.In this paper,we first calculate the peak accelerations of the 213 strong motion records.The basic characteristics of amplitude in this earthquake were analyzed according to the acceleration time-series curves and contour line of PGAs.Then,the attenuation relationship of PGAs with different distance was analyzed by comparing the observed data with some commonly used GMPE(ground motion prediction equations).In order to summarize the characteristics of response spectrum,we compare the acceleration response spectra of some typical stations with the designed spectrum.The HVSR method has been used to analyze site effect and judge whether nonlinear response occur of 3 typical stations with main and multiple aftershocks records.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-01-04
基金项目:中国地震局2019年三结合课题(3JH-201901004)、甘肃省地震局科技发展基金(2018Y02)、甘肃省强震动台站加速度传感器极性检测和方位角普查校正项目(2015-JC073)、甘肃地震背景场探测项目——强震动分项共同资助.
通讯作者:田秀丰(1984-),高级工程师,主要从事强震动观测和地震预警方面的研究.E-mail:877985609@qq.com

更新日期/Last Update: 2019-12-15