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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Spatial coherency analysis of seismic ground motions from a rock site dense array implemented during the Kefalonia 2014 aftershock sequence
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Spatial coherency analysis of seismic ground motions from a rock site dense array implemented during the Kefalonia 2014 aftershock sequence

机译：Kefalonia 2014余震序列实施的岩石场地密集阵列地震地震动的空间相干分析

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摘要

The objective of studies presented in this paper is to analyse the spatial incoherency of seismic ground motions using signals from a velocimeter dense array located on a rock site, recording the aftershock sequence of the two M6 Kefalonia earthquakes that occurred in January/February 2014 (Kefalonia island, Greece). The analyses are carried out with both horizontal and vertical components of velocigrams for small separation distances of stations (<100m). The coherencies of seismic ground motions identified from strong motion windows are compared with those identified from coda parts of signals. It is realized that there is no significant difference between the coherencies estimated from those two parts of signals. The influence of earthquake event number on the result of coherencies and the dispersions of coherencies estimated from different earthquake events are presented. Finally, coherencies estimated from the dense array are compared with several coherency models proposed and widely used in the literature. The possibility of modifying some parameters of those existing coherency models to fit with in situ coherencies are discussed and presented. Copyright (c) 2017 John Wiley & Sons, Ltd.
机译：本文提出的研究目的是使用位于岩石现场的测速仪密集阵列的信号分析地震地震动的空间不相干性，记录2014年1月/ 2月发生的两次M6凯法利尼亚地震的余震序列（凯法利尼亚岛）。对于测站的较小分隔距离（<100m），使用测速图的水平和垂直分量进行分析。从强运动窗口识别出的地震地面运动的相干性与从信号尾声部分识别出的相干性进行了比较。已经认识到，从那两个信号部分估计的相干性之间没有显着差异。给出了地震事件数目对相干结果的影响以及从不同地震事件估计的相干散布。最后，将从密集阵列估计的相干性与在文献中提出并广泛使用的几种相干性模型进行比较。讨论并提出了修改那些现有一致性模型的某些参数以适合原位一致性的可能性。版权所有（c）2017 John Wiley＆Sons，Ltd.

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  • 来源
    《Earthquake Engineering & Structural Dynamics》 |2017年第12期|1895-1917|共23页
  • 作者

    Svay A.; Perron V.; Imtiaz A.; Zentner I.; Cottereau R.; Clouteau D.; Bard P. -Y.; Hollender F.; Lopez-Caballero F.;

  • 作者单位

    Univ Paris Saclay, Cent Supelec, CNRS, Lab Mech Soils Struct & Mat,UMR8579, Chatenay Malabry, France|Univ Paris Saclay, UMR EDF 9219, Inst Mech Sci & Ind Applicat, CNRS,CEA,ENSTA ParisTech, Palaiseau, France|EDF Lab Paris Saclay, Palaiseau, France;

    CEA, French Alternat Energies & Atom Energy Commiss, St Paul Les Durance, France|Univ Grenoble Alpes, French Inst Sci & Technol Transport Dev & Network, Inst Sci Terre, Grenoble, France;

    Univ Grenoble Alpes, French Inst Sci & Technol Transport Dev & Network, Inst Sci Terre, Grenoble, France;

    Univ Paris Saclay, UMR EDF 9219, Inst Mech Sci & Ind Applicat, CNRS,CEA,ENSTA ParisTech, Palaiseau, France|EDF Lab Paris Saclay, Palaiseau, France;

    Univ Paris Saclay, Cent Supelec, CNRS, Lab Mech Soils Struct & Mat,UMR8579, Chatenay Malabry, France;

    Univ Paris Saclay, Cent Supelec, CNRS, Lab Mech Soils Struct & Mat,UMR8579, Chatenay Malabry, France;

    Univ Grenoble Alpes, French Inst Sci & Technol Transport Dev & Network, Inst Sci Terre, Grenoble, France;

    CEA, French Alternat Energies & Atom Energy Commiss, St Paul Les Durance, France|Univ Grenoble Alpes, French Inst Sci & Technol Transport Dev & Network, Inst Sci Terre, Grenoble, France;

    Univ Paris Saclay, Cent Supelec, CNRS, Lab Mech Soils Struct & Mat,UMR8579, Chatenay Malabry, France;

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  • 正文语种 eng
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  • 关键词

    spatial variability; ground motion dense array; coherency model; soil-structure interactions;

    机译：空间变异性地震动致密阵列相干模型土-结构相互作用;

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