ANALYTICAL EVALUATION METHOD OF SITE AMPLIFICATION FACTOR AT DENSE STRONG MOTION OBSERVATION AREA

• DEGUCHI Takuma

  神戸大学大学院工学研究科 市民工学専攻

• NAGAO Takashi

  神戸大学 都市安全研究センター

• YAMADA Masayuki

  株式会社ニュージェック 技術開発グループ

• ITO Yoshihiro

  株式会社ニュージェック 技術開発グループ

Bibliographic Information

Other Title

• 高密度強震観測エリアにおけるサイト増幅特性の解析的評価法に関する研究

Abstract

 It is difficult to evaluate site amplification factor analytically because site amplification factor is affected by several factors such as three dimensional deep subsurface profile. Therefore, site amplification factors have been evaluated by spectral inversion using strong motion records and those at sites without strong motion observation records have not been evaluated precisely.<br> In this study, evaluation method of site amplification factors at dense strong motion observation area was discussed. Site amplification factors for the low frequency range were evaluated by using both three dimensional finite difference analysis results and empirical site amplification factors. On the other hand, site amplification factors for the high frequency range were evaluated by the mean amplification factors considering geomorphologic condition. Applicability of the proposed method was discussed.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 72 (4), I_199-I_212, 2016

  Japan Society of Civil Engineers

Keywords

• site amplification factor
• finite difference method
• deep subsurface profile
• geomorphologic condition

Details

• CRID: 1390282680325753600
• NII Article ID: 130005152709
• DOI: 10.2208/jscejseee.72.i_199
• ISSN: 21854653
• Web Site: https://www.jstage.jst.go.jp/article/jscejseee/72/4/72_I_199/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed