EVALUATION OF SITE SPECTRUM USING AMPLIFICATION FACTORS FOR EARTHQUAKE GROUND MOTION INDI CES AND H/V SPECTRUM OF MICROTREMOR

DOI 12 References

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Other Title
  • 地震動指標の地盤増幅度と微動H/Vスペクトルによる増幅スペクトル推定 ―石川県内の地震観測点を対象として―

Abstract

 In this study, we proposed a method to evaluate a site spectrum using amplification factors for peak ground acceleration and JMA seismic intensity, H/V spectrum of microtremor at local government observation sites where seismic waveform records were not stored. Firstly, the amplification factors and site spectra of acceleration response spectra at JMA, K-NET, KiK-net observation sites in the Chubu region were evaluated by a regression analysis. The amplification factors and site spectra have a good correlation at less than one second of period. In order to improve the evaluation to site spectra at more than one second of period, we used a function approximated by the H/V spectra as a parameter of the site spectra. The site spectra by a regression analysis using amplification factors and the approximated function were evaluated. The precision of evaluation at more than one second of period was improved.

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Details 詳細情報について

  • CRID
    1390282680327870848
  • NII Article ID
    130004556705
  • DOI
    10.2208/jscejseee.67.454
  • ISSN
    21854653
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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