|本期目录/Table of Contents|

[1]马完君,卢建旗,唐丽华,等.基于等效群速度的非平稳地震动拟合方法研究*[J].地震研究,2019,42(04):523-530.
 MA Wanjun,LU Jianqi,TANG Lihua,et al.A Method for Non-stationary Ground Motion Simulation Based on the Equivalent Group Velocity Model[J].Journal of Seismological Research,2019,42(04):523-530.
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基于等效群速度的非平稳地震动拟合方法研究*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
42
期数:
2019年04期
页码:
523-530
栏目:
出版日期:
2019-12-15

文章信息/Info

Title:
A Method for Non-stationary Ground Motion Simulation Based on the Equivalent Group Velocity Model
作者:
马完君1卢建旗1唐丽华2谢志南1
(1.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; 2.新疆维吾尔自治区地震局,新疆维吾尔自治区 乌鲁木齐 830011)
Author(s):
MA Wanjun1LU Jianqi1TANG Lihua2XIE Zhinan1
(1.Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,Heilongjiang, China)(2.Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi,830011,Xinjiang, Chi
关键词:
非平稳地震动 波包时迟 等效群速度 地震动模拟
Keywords:
non-stationary ground motion envelope delay equivalent group velocity ground motion simulation
分类号:
P315.914
DOI:
-
摘要:
基于地震动能量传播速度为群速度这一概念,回顾了相位微分和窄带滤波两种频率相依波包时延计算方法及其在非平稳地震动相位拟合中的应用,归纳给出了一种非平稳地震动生成方法,通过模拟2条典型的海底与陆地地震动验证了方法的有效性,并将该方法应用于区域非平稳地震动场模拟中。结果表明:利用该方法所得模拟地震动记录平均加速度反应谱与原记录加速度反应谱有较高的一致性,而且能很好地再现地震的非平稳特性。
Abstract:
Based on the concept that the energy propagation velocity of ground motion is group velocity,this paper briefly reviews the phase differential and narrow-band filtering methods for calculating frequency-dependent wave packet time delay and their applications in non-stationary ground motion phase simulation.Then a non-stationary ground motion simulation method is established.The effectiveness of this method is verified by simulating two typical ocean-bottom and land ground motions.Finally,the application of this method in regional non-stationary ground motion field simulation is discussed.The results show that the average acceleration response spectrum of the simulated ground motion recorded by this method is consistent with the original recorded acceleration response spectrum.In addition,the non-stationary characteristics of the earthquake can be well reproduced.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-06-30
基金项目:国家重点研发计划(2018YFC1504004)、国家自然科学基金(51678539)和地震星火计划(XH19051)联合资助.

更新日期/Last Update: 2019-12-15