余震観測記録に基づく兵庫県南部地震時の神戸市東灘区における本震地動の推定 GROUND MOTION ESTIMATION IN THE HIGASHINADA WARD IN KOBE DURING THE HYOGO-KEN NAMBU EARTHQUAKE OF 1995 BASED ON AFTERSHOCK RECORDS

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抄録

Aftershock records of the Hyogo-ken Nanbu earthquake of 1995 observed in the Higashinada Ward in Kobe are analyzed to find the appropriate ground models at each sites. Then main shock ground motions there are estimated based on these models. Spectra at the sites on sand layers 10m to 20m thick show considerable amplification compared to those on hard rock. Spectral ratios of horizontal components between them can be modeled very well by the 1-D ground models derived from the boring data (N-values) and geophyisical exploration. We try to reproduce ground motions at these sites by using equivalent linear or effective stress analyses with these soil models and the main shock records observed on the hard rock. We found that equivalent linear analysis gives us estimated peak accelerations of 670-1,130 Gals and peak velocities of 140-170 cm/sec and that effective stress analysis yields peak accelerations of 630-1,000 Gals and peak velocities of about 130 cm/sec. Thus we can say that ground motions in the heavily damaged area in the Higashinada Ward must reach to the level of 600 Gals in acceleration and 130 cm/sec in velocity at least.

収録刊行物

  • 日本建築学会構造系論文集

    日本建築学会構造系論文集 60(476), 103-112, 1995

    日本建築学会

参考文献:  19件中 1-19件 を表示

被引用文献:  7件中 1-7件 を表示

各種コード

  • NII論文ID(NAID)
    110004303094
  • NII書誌ID(NCID)
    AN10438559
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13404202
  • NDL 記事登録ID
    3636531
  • NDL 刊行物分類
    ME15;NA11
  • NDL 雑誌分類
    ZN1(科学技術--建設工学・建設業)
  • NDL 請求記号
    Z16-1419
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS  J-STAGE 
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