Seismic Waveform Evaluation at Naka-River Aqueduct Site for the 2011 off the Pacific Coast of Tohoku Earthquake Based on the Site-effect Substitution Method

• HATA Yoshiya

  R&D Center, Nippon Koei Co., Ltd,

• KUWATA Yasuko

  Graduate School of Eng., Kobe University

• NOZU Atsushi

  Port and Airport Research Institute

Bibliographic Information

Other Title

• 経験的サイト増幅・位相特性を考慮した2011 年東北地方太平洋沖地震における那珂川水管橋での地震動の評価

Abstract

During the 2011 off the Pacific coast of Tohoku Earthquake, Naka-River Aqueduct, Ibaraki Prefecture, Japan, suffered significant damage including pipe dropout in expansion joints. In this study, to estimate strong ground motions at the damage site with high accuracy, aftershock observations with a dense array were conducted at the site. Based on the observation records, difference of site effects between the landside area and the riverside area was indicated. The estimated seismic waveforms at permanent strong motion stations with the site-effect substitution method are very consistent with the observed ones, indicating the validity of the method. Finally, the method was used to estimate strong ground motions at the damage site.

Journal

• Journal of Japan Association for Earthquake Engineering

  Journal of Japan Association for Earthquake Engineering 12 4_374-4_393, 2012

  JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING

Keywords

• Ground motion
• Aftershock observation
• Site amplification factor
• Site phase effect
• Naka-River Aqueduct
• The 2011 off the Pacific coast of Tohoku Earthquake

Details

• CRID: 1390001205358610176
• NII Article ID: 130002152977
• NII Article ID: 120005723193
• DOI: 10.5610/jaee.12.4_374
• ISSN: 18846246
• HANDLE: 20.500.14094/90003287
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed