COMPARISON BETWEEN SPECTRAL CHARACTERISTICS EVALUATED FROM STRONG MOTIONS AND MICROTREMORS AT STRONG-MOTION SITES IN YOKOHAMA

• TOSHINAWA Takumi

  JAPAN SOCIETY OF CIVIL ENGINEERS

• NISHIDA Hideaki

  JAPAN SOCIETY OF CIVIL ENGINEERS

• MIDORIKAWA Saburoh

  東京工業大学 大学院総合理工学研究科

• ABE Susumu

  横浜市総務局災害対策室防災技術課

Bibliographic Information

Other Title

• 横浜市高密度強震計ネットワーク観測点における強震動と常時微動のスペクトル特性の比較
• ヨコハマシ コウミツド キョウシンケイ ネットワーク カンソクテン ニ オケル キョウシンドウ ト ジョウジ ビドウ ノ スペクトル トクセイ ノ ヒカク

Abstract

Spectral characteristics of strong motions and microtremors are compared at the dense strong-motion network sites in Yokohama. From strong motions, spectral ratios are evaluated by dividing Fourier amplitude spectra in the horizontal component by reference spectra which are obtained from strong motions on exposed soft rocks (SMSR). From microtremors, horizontal-to-vertical spectral ratios are obtained (HVSR). Good correlation is found between the fundamental periods of SMSRs and HVSRs especially on the condition that less site-amplification sites are excluded. Good correlation is also found between the spectral peak amplitudes of SMSRs and HVSRs (As and Ap, respectively) and the relationship is regressed as As=0.87Ap.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2000 (640), 193-202, 2000-01-21

  Japan Society of Civil Engineers

Keywords

• strong motion
• microtremor
• spectral characteristics
• site amplification
• resonance period
• Yokohama
• strong-motion spectral ratio
• H/V spectral ratio

Details

• CRID: 1390282680285147264
• NII Article ID: 10004541077
• NII Article ID: 10030995804
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2000.640_193
• ISSN: 18827187
• ISSN: 02897806
• ISSN: http://id.crossref.org/issn/02897806
• NDL BIB ID: 4980911
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4980911
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2000/640/2000_640_193/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed