EVALUATION OF SITE SPECTRUM USING AMPLIFICATION FACTORS FOR EARTHQUAKE GROUND MOTION INDI CES AND H/V SPECTRUM OF MICROTREMOR
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- NISHIKAWA Hayato
- 舞鶴工業高等専門学校
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- MORIMOTO Yoshiki
- 株式会社IHI
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- MIYAJIMA Masakatsu
- 金沢大学 理工研究域環境デザイン学系
Bibliographic Information
- Other Title
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- 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.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
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Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 67 (3), 454-463, 2011
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680327870848
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- NII Article ID
- 130004556705
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- ISSN
- 21854653
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed