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1.中国地震局地震工程与工程振动重点实验室 中国地震局工程力学研究所,黑龙江 哈尔滨 150080
2.苏州科技大学土木工程学院,江苏 苏州 215011
3.中国地震局地球物理勘探中心,河南 郑州 450002
Received:18 December 2020,
Revised:2021-02-20,
Published:28 August 2022
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党鹏飞,刘启方,马完君等.参数对地震动随机模拟结果的影响分析*[J].防灾减灾工程学报,2022,42(04):768-777.
DANG Pengfei,LIU Qifang,MA Wanjun,et al.Effects Analysis of Parameters on Stochastically Simulated Ground Motions[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(04):768-777.
党鹏飞,刘启方,马完君等.参数对地震动随机模拟结果的影响分析*[J].防灾减灾工程学报,2022,42(04):768-777. DOI: 10.13409/j.cnki.jdpme.20201218003.
DANG Pengfei,LIU Qifang,MA Wanjun,et al.Effects Analysis of Parameters on Stochastically Simulated Ground Motions[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(04):768-777. DOI: 10.13409/j.cnki.jdpme.20201218003.
随机有限断层法是模拟近场高频地震动常用的方法,且被国内外研究者证实是成功的且有效的模拟高频地震动的工具。由于随机有限断层模拟方法输入参数较多,造成对模拟结果的不确定因素也相应较多,因此在使用随机有限断层法时如何合理地确定输入参数则成为研究者需要考虑的首要问题,也是成功重建场点加速度纪录的关键环节。简要地介绍了地震动模拟的基本理论、流程和主要参数的意义,在国内外研究者的研究成果基础上以芦山
M
w
6.6地震为例重点分析了地震动持时对峰值加速度(
PGA
)、5%阻尼比加速度反应谱(
PSA
)和加速度傅里叶谱(
FAS
)模拟结果的影响。主要得出以下结论:(1)在特定震级下,持时模型对峰值加速度影响较大,特别是断层距越小时,这种影响作用越明显;(2)通过四种持时模型得到的傅里叶谱和反应谱以及模型偏差分析可知,根据记录90%有效持时拟合其与震中距得到的持时模型表现较好。最后分析了脉冲百分比和断层上缘埋深等参数对模拟反应谱的影响,结果显示:(1)在相同震级下,反应谱幅值随脉冲百分比的变化差异不大;(2)在断层方位尺寸给定的前提下,反应谱幅值随上缘埋深的增加而减小。这些结论可以为随机有限断层模拟方法的工程实际应用时更合理地挑选参数提供理论依据,也可以相应的提高模拟精度。
Stochastic finite-fault method is commonly utilized to simulate near-field high-frequency ground motion, and is proved to be a successful and effective tool by researchers at home and abroad. Due to a large number of input parameters, there are many uncertainties in the simulation results. Therefore, how to reasonably determine the input parameters has become a most important problem for researchers, and is also the key to successfully reconstructing the acceleration record of the field site. By introducing the basic principle, procedure and parameters meaning of ground motion simulation, taking the Lushan Mw6.6 earthquake as an example, this paper focuses on the influence of ground motion duration on peak ground acceleration (
PGA
), 5%-damped spectral acceleration (
PSA
) and Fourier acceleration spectrum (
FAS
) based on the research results of domestic and foreign researchers. The main conclusions are as follows: (1) The duration model has a great influence on the
PGA
at a specific magnitude; (2) According to the analysis on the Fourier spectrum, response spectra and model bias of the four duration models, the duration model obtained by fitting the 90% effective duration with the epicenter distance is better. At the same time, the influence of the pulse area percentage and the buried depth of the fault on response spectra is analyzed. The results show that: (1) Under the same magnitude, the amplitude of response spectra has little change with the pulse area percentage; (2)When the orientation of the fault is given, the amplitude of response spectra decreases with the increase of buried depth of the fault. These conclusions can provide a theoretical basis for the more reasonable selection of parameters in the practical application of the stochastic finite-fault simulation method, and can also improve the simulation accuracy accordingly.
高阳 , 潘华 , 汪素云 . 随机有限断层法模拟中强地震近场强震动的参数影响研究 [J]. 地震学报 , 2014 , 36 ( 4 ): 698 - 710 .
Gao Y , Pan H , Wang S Y . Effect of parameters on near-fault ground-motion simulations for moderate-strong earthquakes by stochastic finite-fault method [J]. Acta Seismologica Sinica , 2014 , 36 ( 4 ): 698 - 710 . (in Chinese)
王振宇 , 赵培培 , 薄景山 . 地震动随机模拟方法主要影响参数分析 [J]. 世界地震工程 , 2017 , 33 ( 3 ): 34 - 41 .
Wang Z Y , Zhao P P , Bo J S . Analysis for the effects of main parameters on ground motions by stochastic simulation method [J]. World Earthquake Engineering , 2017 , 33 ( 3 ): 34 - 41 . (in Chinese)
高阳 , 潘华 , 汪素云 . 随机有限断层法模拟中强地震近场强震动的参数影响研究 [J]. 地震学报 , 2014 , 36 ( 4 ): 698 - 710 .
Gao Y , Pan H , Wang S Y . Effect of parameters on near-fault ground-motion simulation for moderate-strong earthquakes by stochastic finite-fault method [J]. Acta Seismological Sinica , 2014 , 36 ( 4 ): 698 - 710 . (in Chinese)
Boore D M . Stochastic simulation of high-frequency ground motion based on seismological models of the radiated spectra [J]. Bulletin of the Seismological Society of America , 1983 , 73 ( 6 ): 1865 - 1894 .
Beresnev I A , Atkinson G M . Modeling finite-fault radiation from the ω n spectrum [J]. Bulletin of the Seismological Society of America , 1997 , 87 ( 1 ): 67 - 84 .
Beresnev I A , Atkinson G M . FINSIM-a FORTRAN program for simulating stochastic acceleration time histories from finite faults [J]. Seismological Research Letters , 1998 , 69 ( 1 ): 27 - 32 .
Hartzell S H . Earthquake aftershock as Green’s functions [J]. Geophysical Research Letters , 1978 , 5 ( 1 ): 1 - 14 .
Aki K . Scaling law of seismic spectrum [J]. Journal of Geophysical Research , 1967 , 72 ( 4 ): 1217 - 1231 .
Brune J N . Tectonic stress and the spectra of seismic shear waves from earthquake [J]. Journal of Geophysical Research , 1970 , 75 ( 26 ): 4997 - 5009 .
Motazedian D , Atkinson G M . Stochastic finite-fault modeling based on a dynamic corner frequency [J]. Bulletin of the Seismological Society of America , 2005 , 95 ( 3 ): 995 - 1010 .
Boore D M . Comparing stochastic point-source and finite-source ground-motion simulations:SMSIM and EXSIM [J]. Bulletin of the Seismological Society of America , 2009 , 99 ( 6 ): 3202 - 3216 .
RaghuKanth S T G , Kavitha B . Stochastic finite fault modeling of subduction zone earthquake in northeastern India [J]. Pure Apple Geophys , 2013 , 170 ( 11 ): 1705 - 1727 .
Ugurhan B , Askan A . Stochastic strong ground motion simulation of the 12 November 1999 Duzce (Turkey) earthquake using a dynamic corner frequency approach [J]. Bulletin of the Seismological Society of America , 2010 , 100 ( 4 ): 1498 - 1512 .
Zafarani H , Rahimi M , Noorzad A , et al . Stochastic simulation of strong-motion records from the 2012 Ahar-Varzaghan dual earthquakes, northwest of Iran [J]. Bulletin of the Seismological Society of America , 2015 , 105 ( 3 ): 1419 - 1434 .
Dang P F , Liu Q F . Stochastic finite-fault ground motion simulation for the M w 6.7 earthquake in Lushan, China [J]. Natural Hazards , 2020 , 100 ( 3 ): 1215 - 1241 .
Ghofrani H , Atkinson G M , Goda K , et al . Stochastic finite-fault simulations of the 2011 Tohoku, Japan, earthquake [J]. Bulletin of the Seismological Society of America , 2013 , 103 ( 2B ): 1307 - 1320 .
Dang P F , Liu Q F , Song J . Simulation of the Jiuzhaigou, China, earthquake by stochastic finite-fault method based on variable stress drop [J]. Natural Hazards , 2020 , 103 ( 2 ): 2295 - 2321 .
Sun X D , Hartzell S , Rezaeian S . Ground-motion simulation for the 23 August 2011, Mineral, Virginia, earthquake using physics-based and stochastic broadband methods [J]. Bulletin of the Seismological Society of America , 2015 , 105 ( 5 ): 2641 - 2661 .
Wang D , Xie L L , Abrahamson N A . Comparison of strong ground motion from the next generation attenuation (NGA) ground-motion models [J]. Bulletin of the Seismological Society of America , 2010 , 100 ( 5B ): 2381 - 2395 .
王卫民 , 郝金来 , 姚振兴 . 2013年4月20日四川芦山地震震源破裂过程反演初步结果 [J]. 地球物理学报 , 2013 , 56 ( 4 ): 1412 - 1417 .
Wang W M , Hao J L , Yao Z X . Preliminary result for rupture process of Apr. 20,2013,Lushan earthquake,Sichuan,China [J]. Chinese Journal of Geophysics , 2013 , 56 ( 4 ): 1412 - 1417 . (in Chinese)
王海云 . 2010年4月14日玉树Ms 7 .1 地震加速度场预测[J]. 地球物理学报 ,2010, 53 ( 10 ): 2345 - 2354 .
Wang H Y . Prediction of acceleration field of the 14 April 2010 Yushu earthquake [J]. Chinese Journal of Geophysics , 2010 , 53 ( 10 ): 2345 - 2354 . (in Chinese)
Yalcinkaya E , Oinar A , Uskuloglu O , et al . Selecting the most suitable rupture model for the stochastic simulation of the 1999 Izmit earthquake and prediction of peak ground motions [J]. Soil Dynamics and Earthquake Engineering , 2012 , 42 : 1 - 16 .
Atkinson G M , Boore D M . Earthquake ground-motion prediction equations for eastern north America [J]. Bulletin of the Seismological Society of America , 2006 , 96 ( 6 ): 2181 - 2205 .
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