• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Earthquake Response Prediction for Large-scale Low-rise Buildings Based on Microtremor and Earthquake Measurements

Research Project

Project/Area Number 20K05027
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 25030:Disaster prevention engineering-related
Research InstitutionKyoto University

Principal Investigator

Yoshiki IKEDA  京都大学, 防災研究所, 教授 (70416866)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords低層建物 / 地震被災度即時判定法 / 微動計測 / モード同定 / 振動解析モデル / 地震応答解析 / 振動台実験 / 並進ねじれ振動の連成 / 実建物 / 大規模低層建物 / 商業建物 / 吹抜 / 微動 / 地震応答 / 被災度判定 / 地震観測
Outline of Research at the Start

設計図面や構造計算書を使わずに,振動計測のみで大規模低層建物の地震応答解析モデルを構築する方法を提案し,その妥当性を検証する.一日程度の微動計測で振動特性を評価する方法を確立し,得られた特性から地震応答解析モデルを構築する理論と,地震時の振動計測でモデル更新する理論を提案する.この成果により,振動計測に基づく地震被災度即時判定を大規模低層建物に展開し,振動特性に不明な点が多い低層建物,特に避難生活物質を在庫としてもつ大規模商業建物を避難所として利用することに貢献する.

Outline of Final Research Achievements

To evaluate seismic responses of a low-rise building, this research proposes how to make a multi-degree-of-freedom linear model based on microtremor measurement. The method is verified through numerical simulations and shaking table tests of a 4-story steel specimen. Multi-setups of accelerometers is established to obtain global modal shapes of the structure with a limited number of sensors. Six buildings were selected to extract general dynamic properties of large-scale low-rise commercial buildings that have different characteristics individually. Even if microtremor sensors are removed from a building, the method can estimate the seismic responses at microtremor sensors' locations without structural design documents. This method will promote to provide building users with useful information about structural damage after an earthquake, because it considers the limited number of installed sensors and requires no design documents in practical applications.

Academic Significance and Societal Importance of the Research Achievements

振動計測記録に基づいて建物の地震被災度を即時判定する方法は、高層建物ではほぼ確立されている一方、不特定多数が利用する大規模低層商業建物では確立されていない。本研究の成果は、大規模低層建物の地震時の揺れを予測するために、微動計測情報のみで建物の地震応答解析モデルを構築する方法を提案し、その妥当性を検証したことである。大規模低層商業建物の地震被災度が即時判定できれば、建物が安全と判断された場合に建物を避難所として提供したり、店舗に残された商品を救援物質に役立てたりすることが可能になる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results)

  • [Journal Article] GOVERNING EQUATION BASED ON POLE ALLOCATION FOR MULTI-LUMPED-MASS STICK-SHAPE SHEAR BUILDING MODEL2023

    • Author(s)
      松本祐輝,池田芳樹
    • Journal Title

      Journal of Structural Engineering B

      Volume: 69B Issue: 0 Pages: 1-9

    • DOI

      10.3130/aijjse.69B.0_1

    • ISSN
      0910-8033, 2436-6285
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unified Description of Passive Vibration Control for Buildings Based on Pole Allocation Applied to Three-degree-of-freedom Model2022

    • Author(s)
      Yoshiki IKEDA, Yuki MATSUMOTO
    • Journal Title

      Structural Control and Health Monitoring

      Volume: 29 Issue: 9 Pages: 1-17

    • DOI

      10.1002/stc.2995

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Verification of multi-degree-of-freedom building modelling for seismic response prediction based on microtremor measurement2022

    • Author(s)
      Yoshiki IKEDA, Masahiro KURATA, Jinzhe XIE
    • Journal Title

      Earthquake Engineering & Structural Dynamics

      Volume: 51 Issue: 7 Pages: 1610-1635

    • DOI

      10.1002/eqe.3630

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] UNIFIED UNDERSTANDING OF BASE SEISMIC ISOLATION, INTERSTORY SEISMIC ISOLATION AND TUNED MASS DAMPER FOR BUILDINGS2022

    • Author(s)
      松本祐輝、池田芳樹
    • Journal Title

      Journal of Structural Engineering B

      Volume: 68B Issue: 0 Pages: 367-375

    • DOI

      10.3130/aijjse.68B.0_367

    • NAID

      120007192908

    • ISSN
      0910-8033, 2436-6285
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Seismic response prediction of large-scale low-rise buildings based on microtremor measurement2021

    • Author(s)
      Jinzhe XIE, Yoshiki IKEDA
    • Journal Title

      日本建築学会近畿支部研究発表報告集

      Volume: 61構造系 Pages: 273-276

    • Related Report
      2021 Research-status Report
  • [Journal Article] 微動計測に基づく大規模低層商業建物の振動特性2021

    • Author(s)
      謝金哲、池田芳樹、倉田真宏
    • Journal Title

      構造工学論文集

      Volume: 67B Pages: 495-507

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 微動計測に基づく地震応答解析のための多自由度系線形建物モデルの構築2021

    • Author(s)
      謝金哲、池田芳樹、倉田真宏
    • Journal Title

      構造工学論文集

      Volume: 67B Pages: 509-518

    • Related Report
      2020 Research-status Report
    • Peer Reviewed

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi