[1]解全才,马强,王丽艳,等.2017年九寨沟7.0级地震强震动记录处理与分析[J].地震工程与工程振动,2018,(05):111-119.[doi:10.13197/j.eeev.2018.05.111.xieqc.013]
 XIE Quancai,MA Qiang,WANG Liyan,et al.Data processing and analysis of strong ground motion records of the 2017 Ms7.0 Jiuzhaigou earthquake[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(05):111-119.[doi:10.13197/j.eeev.2018.05.111.xieqc.013]
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2017年九寨沟7.0级地震强震动记录处理与分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年05
页码:
111-119
栏目:
论文
出版日期:
2018-10-31

文章信息/Info

Title:
Data processing and analysis of strong ground motion records of the 2017 Ms7.0 Jiuzhaigou earthquake
作者:
解全才1 马强1 王丽艳1 张景发2
1. 中国地震局 工程力学研究所 地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080;
2. 中国地震局 地壳应力研究所 地壳动力学重点实验室, 北京 100085
Author(s):
XIE Quancai1 MA Qiang1 WANG Liyan1 ZHANG Jingfa2
1. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engneering Machanics, China Earthquake Administration, Harbin 150080, China;
2. Key Laboratory of Crsutal Dynamics, Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China
关键词:
九寨沟地震峰值加速度衰减关系反应谱持时
Keywords:
Jiuzhaigou earthtquakepeak ground accelerattionattennuation relationshipresponse spectrumduration
分类号:
P315.9
DOI:
10.13197/j.eeev.2018.05.111.xieqc.013
摘要:
对2017年8月8日四川九寨沟地震中国数字强震强震动观测台网获取的82组强震动记录进行了处理和初步分析,在分析前对记录进行了格式转换,零线校正,录入元数据生成标准格式的加速度数据。统计分析显示10 Gal以上加速度记录有46条,峰值加速度范围为0.33~185.02 cm/s2,峰值速度范围为0.04~6.55 cm/s,记录到最大仪器地震烈度为6.2度。将实际观测数据与中国地震动参数区划图分区地震动衰减关系对比,结果显示在震中距200 km以内与Yu 2013短轴衰减关系吻合较好,但在300 km外衰减缓慢,分析了其可能的原因。同时分析了幅值较大2个台站的反应谱谱特征,九寨百河台南北向加速度反应谱高于我国7度罕遇地震的抗震设计反应谱,加速度反应谱主要周期集中在0.1到0.4 s以内,不会对长周期建筑造成严重破坏。最后计算了5%~75%和5%~95%两种能量持时,结果整体上符合随震中距增大而增大的规律。
Abstract:
The strong moiton data from Jiuzhaigou earthquake of Auguest, 8, 2017 were collected and processed. In order to get the standard format acceleration,the data format of the original data were transformed, the baseline were corrected, the metadata were complemented before the normal analysis and processing.There are 46 pieces of acceration larger than 10 Gal,The PGA varies from 0.33 to 185.02 cm/s2 and the PGV varies from 0.04 to 6.55 cm/s.The maximum instrumental seismic intensity is 6.2 in China seismic intensity scale.we compared the observed PGA and PGV with the Chinese attenuation relationships used in the seiscmic grond motion parameter zone map.It shows that the observed PGA and PGV within the 200 km consistent well with the Yu 2013 short axis PGA and PGV prediction attenuation relationship,but it decay slower than the relationship with epicenter distance larger than 300 km,the possible reason was proposed.The two largest response accerlation were analyzied, the reponse spectrum of NS component of 51JZB is larger than seismic design response spectrum of 7 degreee rare earthquakes in China, The peak period of accerleration response spectrum mainly between 0.1second and 0.4 second at 51JZB and 51JZW,it will not cause sever damage to the long period bulidings.The 5%~75% siginificant duration and 5%~95% significant duration were calculated,the significant duration grow with the epicenter distance in the whole.

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备注/Memo

备注/Memo:
收稿日期:2017-11-29;改回日期:2018-01-15。
基金项目:中国地震局地壳应力研究所基本科研业务费专项项目(ZDJ2017-29);国家自然科学基金项目(41874059)
作者简介:解全才(1982-),男,助理研究员,博士,主要从事强震动观测方面研究.E-mail:xiequancai@iem.ac.cn
通讯作者:张景发(1963-),男,研究员,博士,主要从事灾害评估方面研究.E-mail:zhangjingfa@hotamail.com
更新日期/Last Update: 1900-01-01