Article(id=1228654093200192156, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228654089437901468, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2024.12.003, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1672848000000, receivedDateStr=2023-01-05, revisedDate=1676995200000, revisedDateStr=2023-02-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1770863563107, onlineDateStr=2026-02-12, pubDate=1735315200000, pubDateStr=2024-12-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770863563107, onlineIssueDateStr=2026-02-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770863563107, creator=13701087609, updateTime=1770863563107, updator=13701087609, issue=Issue{id=1228654089437901468, tenantId=1146029695717560320, journalId=1225147924628267009, year='2024', volume='37', issue='12', pageStart='1993', pageEnd='2167', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770863562211, creator=13701087609, updateTime=1770863940325, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228655675413299456, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228654089437901468, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228655675413299457, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228654089437901468, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2012, endPage=2020, ext={EN=ArticleExt(id=1228654093460239007, articleId=1228654093200192156, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=A baseline correction method for characterizing permanent displacement of near-fault ground motion, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In the processing of near-fault original seismic acceleration records,how to retain the real ground permanent displacement information is a key problem to be solved in the baseline correction of seismic acceleration records. Based on the analysis and discussion of the validity and applicable scope of existing near-fault seismic acceleration baseline correction methods,this study introduces a smooth slope displacement function model and establishes a new baseline correction method that can reasonably characterize the permanent displacement of near-fault ground motions,and the new baseline correction method is verified by analyzing the baseline correction results of typical near-fault acceleration records. The results show that the new method established in this study improves the fitting accuracy between the displacement function model and displacement time history,reduces the influence of the selection of subjective parameters on the baseline correction results,and the corrected ground permanent displacement is in good agreement with the GPS co-seismic displacement. The ground motion baseline correction method established in this paper can not only automatically deal with the baseline drift of near-fault ground motion,but also reasonably characterize the permanent ground displacement caused by fling-step effect.
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在对近断层原始地震加速度记录的处理中,如何保留真实的地面永久位移信息,是目前地震加速度记录基线校正中需要解决的关键问题。本文在对现有近断层地震加速度基线校正方法的有效性及适用范围分析和讨论的基础上,引入平滑斜坡位移函数模型,建立了能够合理表征近断层地震动永久位移的一种基线校正方法,并通过典型近断层加速度记录的基线处理对该方法进行了校验。结果表明,本文建立的方法改善了位移函数模型与位移时程之间的拟合精度,能减少主观参数选择对基线校正结果的影响,且校正后的地面永久位移与GPS同震位移吻合度较高。本文建立的地震动基线校正方法不仅能够自动处理近断层地震动的基线漂移,且能合理表征由于滑冲效应而产生的地面永久位移。
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1中国地震局地球物理研究所,北京 100081)]), AuthorCompany(id=1228654097641960199, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, xref=2, ext=[AuthorCompanyExt(id=1228654097646154504, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, companyId=1228654097641960199, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Huadong Engineering Co.,Ltd.,Power China,Hangzhou 311122,China), AuthorCompanyExt(id=1228654097654543113, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, companyId=1228654097641960199, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2中国电建集团华东勘测设计研究院有限公司,浙江 杭州 311122)])], figs=[ArticleFig(id=1228654099328070496, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.1, caption=
Baseline correction results of Chi-Chi earthquake at station TCU084,NS component (t1=26.45 s,t2=47.7 s), figureFileSmall=e7TeYCbNVgzQLF6oESfNeA==, figureFileBig=Ah4R9TYrkquYGYKqSw9Mkw==, tableContent=null), ArticleFig(id=1228654099390985060, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图1, caption=
集集地震TCU084的NS向记录基线校正结果(t1=26.45 s,t2=47.7 s), figureFileSmall=e7TeYCbNVgzQLF6oESfNeA==, figureFileBig=Ah4R9TYrkquYGYKqSw9Mkw==, tableContent=null), ArticleFig(id=1228654100863185779, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.2, caption=
Principle of two-stage baseline correction (t1: initial time of the strong seismic transient baseline shift; t2: initial time of the permanent baseline shift;tend: the duration of acceleration record), figureFileSmall=f9MKobEKxgDbA/TdCY6dSg==, figureFileBig=Ue/SNW4psyWfnxEedAJWtw==, tableContent=null), ArticleFig(id=1228654100951266168, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图2, caption=
两段式基线校正原理(t1: 强震段瞬时偏移的起始时刻; t2: 永久偏移的起始时刻;tend:加速度记录持续时间), figureFileSmall=f9MKobEKxgDbA/TdCY6dSg==, figureFileBig=Ue/SNW4psyWfnxEedAJWtw==, tableContent=null), ArticleFig(id=1228654101043540861, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.3, caption=
A ‘good’ corrected displacement time history(t3: the time when the ground has just moved to the permanent displacement position,modified from reference[14]), figureFileSmall=84UPK9j/82OH22B29PZ8Pw==, figureFileBig=IZZXKsK3T8fkxc6TWW5tAA==, tableContent=null), ArticleFig(id=1228654101173564292, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图3, caption=
“理想”的校正后位移时程(t3:地面运动首次到达永久位移的时刻,修改自文献[14]), figureFileSmall=84UPK9j/82OH22B29PZ8Pw==, figureFileBig=IZZXKsK3T8fkxc6TWW5tAA==, tableContent=null), ArticleFig(id=1228654101278421899, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.4, caption=
Corrected results of NS component in station TCU078,Chi-Chi earthquake, figureFileSmall=1Ts1cTB54HK6az4wN//MOw==, figureFileBig=7AUmrTOfClMuGlgJ+cubLQ==, tableContent=null), ArticleFig(id=1228654101353919375, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图4, caption=
集集地震TCU078台站NS方向校正结果, figureFileSmall=1Ts1cTB54HK6az4wN//MOw==, figureFileBig=7AUmrTOfClMuGlgJ+cubLQ==, tableContent=null), ArticleFig(id=1228654101425222548, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.5, caption=
Corrected results of NS component in station TCU079,Chi-Chi earthquake, figureFileSmall=4yLOtBhAdAZL1wfgqGwAtw==, figureFileBig=vf6U3iAJvEe3tpgK1VUKRA==, tableContent=null), ArticleFig(id=1228654101500720026, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图5, caption=
集集地震TCU079台站NS方向校正结果, figureFileSmall=4yLOtBhAdAZL1wfgqGwAtw==, figureFileBig=vf6U3iAJvEe3tpgK1VUKRA==, tableContent=null), ArticleFig(id=1228654101567828895, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.6, caption=
Corrected results of station TCU079,Chi-Chi earthquake, figureFileSmall=P27xrJExsfInOHmpcy8E9Q==, figureFileBig=Fl5M2YsU+6CE//pkthdQ0A==, tableContent=null), ArticleFig(id=1228654101655909285, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图6, caption=
集集地震TCU079台站校正结果, figureFileSmall=P27xrJExsfInOHmpcy8E9Q==, figureFileBig=Fl5M2YsU+6CE//pkthdQ0A==, tableContent=null), ArticleFig(id=1228654101735601066, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.7, caption=
Smooth ramp function model for displacement, figureFileSmall=34xeTcHBPbqwc3MS7FwAYQ==, figureFileBig=Ck8jHIChQwykMWV90P7l0Q==, tableContent=null), ArticleFig(id=1228654101836264367, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图7, caption=
平滑斜坡位移函数模型, figureFileSmall=34xeTcHBPbqwc3MS7FwAYQ==, figureFileBig=Ck8jHIChQwykMWV90P7l0Q==, tableContent=null), ArticleFig(id=1228654101928539064, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.8, caption=
The flow chart of baseline correction in this paper, figureFileSmall=f92+GgMC9Ti2H9mL/LXLWw==, figureFileBig=SYfHENUg6uNsatzFHBw72w==, tableContent=null), ArticleFig(id=1228654102004036540, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图8, caption=
本文基线校正技术流程, figureFileSmall=f92+GgMC9Ti2H9mL/LXLWw==, figureFileBig=SYfHENUg6uNsatzFHBw72w==, tableContent=null), ArticleFig(id=1228654102066951104, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.9, caption=
Corrected displacement of EW component in station TCU079,Chi-Chi earthquake, figureFileSmall=3WsdfNgnOnHtDkl3SjA/Lw==, figureFileBig=cdt/mzxqJHwxRMMqX/mQDw==, tableContent=null), ArticleFig(id=1228654102142448581, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图9, caption=
集集地震TCU079台站EW方向的位移校正结果, figureFileSmall=3WsdfNgnOnHtDkl3SjA/Lw==, figureFileBig=cdt/mzxqJHwxRMMqX/mQDw==, tableContent=null), ArticleFig(id=1228654102209557449, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.10, caption=
Station distribution of Chi-Chi earthquake, figureFileSmall=FzN7KNB3lb9qZe5MfieSIg==, figureFileBig=gxK4SH9vlNy/Ov6SAoOWdA==, tableContent=null), ArticleFig(id=1228654102276666316, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图10, caption=
集集地震的台站分布, figureFileSmall=FzN7KNB3lb9qZe5MfieSIg==, figureFileBig=gxK4SH9vlNy/Ov6SAoOWdA==, tableContent=null), ArticleFig(id=1228654102335386575, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.11, caption=
Comparison of results by different correction schemes, figureFileSmall=IkGrg2Y65Prs3CuEblPgcg==, figureFileBig=zuDcDEkCJ/GvzQfhdyQJ2w==, tableContent=null), ArticleFig(id=1228654102465410007, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图11, caption=
不同校正方案结果对比, figureFileSmall=IkGrg2Y65Prs3CuEblPgcg==, figureFileBig=zuDcDEkCJ/GvzQfhdyQJ2w==, tableContent=null), ArticleFig(id=1228654102557684697, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Fig.12, caption=
Corrected results of UD component in station TCU120,Chi-Chi earthquake, figureFileSmall=2mlIIsaa6C1yZMboVN5Ghw==, figureFileBig=+/iX1FjhMAw2G4U8Fo40CA==, tableContent=null), ArticleFig(id=1228654102628987867, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=图12, caption=
集集地震TCU120台站UD方向校正结果, figureFileSmall=2mlIIsaa6C1yZMboVN5Ghw==, figureFileBig=+/iX1FjhMAw2G4U8Fo40CA==, tableContent=null), ArticleFig(id=1228654102683513823, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Tab.1, caption=
Comparison of corrected permanent displacement and GPS co-seismic displacement
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| 台站 | 台站-GPS测点距离/km | GPS/cm | 本文校正结果/cm | 相对误差/% |
|---|
| UD | NS | EW | UD | NS | EW | UD | NS | EW |
|---|
| TCU052 | 2.7 | 397.2 | 845.1 | -342.3 | 364.04 | 700.53 | -459.06 | -8.35 | -17.11 | 34.11 |
| TCU054 | 1.23 | -11.5 | -47.4 | 79.8 | -16.22 | -84.94 | 76.87 | - | 79.20 | -3.67 |
| TCU056 | 0.096 | -7.4 | -32.1 | 59.1 | -19.6 | -43.2 | 70.72 | - | 34.58 | 19.66 |
| TCU060 | 0.232 | -6.7 | -38.3 | 55.8 | -13.18 | -38.18 | 75.73 | - | -0.31 | 35.72 |
| TCU074 | 1.95 | -60.3 | 128.4 | -187.7 | -69.12 | 136.1 | -184.8 | 14.63 | 6.00 | -1.55 |
| TCU076 | 1.35 | -17.7 | -32.1 | 88.2 | 13.71 | -42.1 | 98.77 | - | 31.15 | 11.98 |
| TCU078 | 3.81 | -16.3 | 83.2 | -137.2 | -24.85 | 77.26 | -104.53 | - | -7.14 | -23.81 |
| TCU079 | 2.73 | -31 | 75.5 | -151.9 | -27.76 | 52.51 | -136.13 | -10.45 | -30.45 | -10.38 |
| TCU102 | 1.73 | -10 | -59.2 | 66.3 | -18.15 | -75.43 | 85.97 | - | 27.42 | 29.67 |
| TCU120 | 0.86 | -15.9 | -21 | 70 | 6.82 | -18.96 | 79.58 | - | -9.71 | 13.69 |
| TCU137 | 3.81 | 155.8 | 301.3 | -259.9 | 226.6 | 200.29 | -221.69 | 45.44 | -33.52 | -14.70 |
), ArticleFig(id=1228654102750622690, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=表1, caption=
校正后的永久位移与GPS同震位移对比
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| 台站 | 台站-GPS测点距离/km | GPS/cm | 本文校正结果/cm | 相对误差/% |
|---|
| UD | NS | EW | UD | NS | EW | UD | NS | EW |
|---|
| TCU052 | 2.7 | 397.2 | 845.1 | -342.3 | 364.04 | 700.53 | -459.06 | -8.35 | -17.11 | 34.11 |
| TCU054 | 1.23 | -11.5 | -47.4 | 79.8 | -16.22 | -84.94 | 76.87 | - | 79.20 | -3.67 |
| TCU056 | 0.096 | -7.4 | -32.1 | 59.1 | -19.6 | -43.2 | 70.72 | - | 34.58 | 19.66 |
| TCU060 | 0.232 | -6.7 | -38.3 | 55.8 | -13.18 | -38.18 | 75.73 | - | -0.31 | 35.72 |
| TCU074 | 1.95 | -60.3 | 128.4 | -187.7 | -69.12 | 136.1 | -184.8 | 14.63 | 6.00 | -1.55 |
| TCU076 | 1.35 | -17.7 | -32.1 | 88.2 | 13.71 | -42.1 | 98.77 | - | 31.15 | 11.98 |
| TCU078 | 3.81 | -16.3 | 83.2 | -137.2 | -24.85 | 77.26 | -104.53 | - | -7.14 | -23.81 |
| TCU079 | 2.73 | -31 | 75.5 | -151.9 | -27.76 | 52.51 | -136.13 | -10.45 | -30.45 | -10.38 |
| TCU102 | 1.73 | -10 | -59.2 | 66.3 | -18.15 | -75.43 | 85.97 | - | 27.42 | 29.67 |
| TCU120 | 0.86 | -15.9 | -21 | 70 | 6.82 | -18.96 | 79.58 | - | -9.71 | 13.69 |
| TCU137 | 3.81 | 155.8 | 301.3 | -259.9 | 226.6 | 200.29 | -221.69 | 45.44 | -33.52 | -14.70 |
), ArticleFig(id=1228654102838703077, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=EN, label=Tab.2, caption=
Comparison of baseline-correction methods for near-fault ground motion
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| 校正方法 | 校正指标 | 是否需要人工指定初始参数 | 程序化计算 |
|---|
| 位移尾段的平坦度 | 位移的整体拟合优度 |
|---|
| 本文方法 | | √ | 否 | √ |
| WANG方法[13] | | √ | 否 | √ |
| WU方法[14] | √ | | 是 | × |
| CHAO方法[12] | √ | | 否 | √ |
| 张斌方法[15] | √ | | 否 | √ |
), ArticleFig(id=1228654102914200553, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228654093200192156, language=CN, label=表2, caption=
近断层地震动基线校正方法对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 校正方法 | 校正指标 | 是否需要人工指定初始参数 | 程序化计算 |
|---|
| 位移尾段的平坦度 | 位移的整体拟合优度 |
|---|
| 本文方法 | | √ | 否 | √ |
| WANG方法[13] | | √ | 否 | √ |
| WU方法[14] | √ | | 是 | × |
| CHAO方法[12] | √ | | 否 | √ |
| 张斌方法[15] | √ | | 否 | √ |
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