[1]周龙龙,陈辉国,雷屹欣,等.基于高低频混合模型的近断层脉冲型地震动的模拟[J].地震工程与工程振动,2022,42(06):162-170.[doi:10.13197/j.eeed.2022.0618]
 ZHOU Longlong,CHEN Huiguo,LEI Yixin,et al.Simulation of near-fault pulse ground motion based on high-low frequency hybrid models[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2022,42(06):162-170.[doi:10.13197/j.eeed.2022.0618]
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基于高低频混合模型的近断层脉冲型地震动的模拟
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《地震工程与工程振动》[ISSN:/CN:]

卷:
42
期数:
2022年06期
页码:
162-170
栏目:
第十一届全国地震工程学术会议专题
出版日期:
2022-12-31

文章信息/Info

Title:
Simulation of near-fault pulse ground motion based on high-low frequency hybrid models
作者:
周龙龙 陈辉国 雷屹欣 张左群
陆军勤务学院, 重庆 401331
Author(s):
ZHOU Longlong CHEN Huiguo LEI Yixin ZHANG Zuoqun
Army Logistics University of PLA, Chongqing 401331, China
关键词:
近断层脉冲地震动Gabor小波模型MP03脉冲模型Kanai-Tajimi模型拟合
Keywords:
near-fault pulse ground motionGabor wavelet modelMP03 pulse modelKanai-Tajimi modelfitting
分类号:
P315
DOI:
10.13197/j.eeed.2022.0618
摘要:
近断层地震动具有显著的时频非平稳特性,文中将近断层脉冲型地震动分解为高频和低频2部分:采用Gabor小波模型和MP03脉冲模型分别模拟低频脉冲分量,通过对比分析确定最优模型;采用完全非平稳时变Kanai-Tajimi模型模拟高频随机分量,然后将两者叠加生成合成的地震动时程。结果表明:在模拟低频分量方面,Gabor小波模型的模拟精度高于MP03脉冲模型,采用完全非平稳时变Kanai-Tajimi模型和Gabor小波模型分别模拟高低频分量,能够较高的反映近断层脉冲地震动波形。
Abstract:
The near-fault ground motion has significant time-frequency non-stationary characteristics. In this paper, near-fault pulse-type ground motion is decomposed into high-frequency and low-frequency parts. The Gabor wavelet model and MP03 pulse model are used to simulate low-frequency pulse components, and the optimal model is determined by comparative analysis. The fully non-stationary time-varying Kanai-Tajimi model is used to simulate the high-frequency random component, and then the two models are superimposed to generate the synthetic ground motion time history. The results show that the simulation accuracy of Gabor wavelet model is better than that of MP03 pulse model in the simulation of low-frequency components. The fully non-stationary time-varying Kanai-Tajimi model and Gabor wavelet model are used to simulate the high-frequency and low-frequency components respectively, which can better reflect the near-fault pulse ground motion waveform.

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备注/Memo

备注/Memo:
收稿日期:2022-06-26;改回日期:2022-08-19。
基金项目:重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0218);重庆市教育委员会科学技术研究项目(KJZD-K201912903)
作者简介:周龙龙(1994-),男,硕士研究生,主要从事地震工程研究.E-mail:519593005@qq.com
通讯作者:陈辉国(1977-),男,教授,博士,主要从事地震工程及结构抗震研究.E-mail:chenhg@163.com
更新日期/Last Update: 1900-01-01