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2007 Fiscal Year Final Research Report Summary

Structural health diagnosis method based on a system identification technique of self-learning type for bi-axial nonlinear vibration system

Research Project

Project/Area Number 18560542
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/materials
Research InstitutionTokyo University of Science (2007)
Tohoku University (2006)

Principal Investigator

KURITA Satoshi  Tokyo University of Science, Faculty of Engineering, Professor (90195553)

Co-Investigator(Kenkyū-buntansha) 栗田 哲  東京理科大学, 工学部, 教授 (90195553)
KANAZAWA Kenji  Central Research Institute of Electric Power Industry, 地球工学研究所, Research Scientist (00371435)
MAEDA Masaki  Tohoku University, School of Engineering, Associate Professor (30262413)
Project Period (FY) 2006 – 2007
KeywordsStructural health diagnosis / Damage / System identification / Nonlinear / vibration system
Research Abstract

This project proposed a structural health diagnosis method using a system identification technique. The structural health diagnosis method evaluates the damage level of a building from the earthquake responses of a building estimated using the identified structural model. The earthquake damages of some buildings were estimated by the structural health diagnosis method. The buildings are installed the observation system of earthquake response and monitored the response of vibration. The feasibility study of the structural health monitoring using the structural response to weak wind was performed.
The proposed identification technique estimates the parameters of nonlinear story shear-deformation models for a building from earthquake response records and updates automatically the parameters after earthquakes. The nonlinear story-deformation relationship takes bi-axial deformation into account. The structural health diagnosis method evaluates the reliability of the estimated damage level from the estimate error of the model parameters based on stochastic theory.
The results of the structural health diagnosis using the proposed method illustrate the affectivity in damage detection. The data of the response to weak wind is useful in the structural health diagnosis.

  • Research Products

    (10 results)

All 2006

All Journal Article (8 results) (of which Peer Reviewed: 4 results) Presentation (2 results)

  • [Journal Article] 地震応答記録に基づいた高減衰積層ゴムの小歪時の復元力モデル2006

    • Author(s)
      工藤 英治郎, 栗田 哲, 後藤 航, 佐々木 達夫
    • Journal Title

      第12回日本地震工学シンポジウム

      Pages: 954-957

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] 鉛プラグ入り積層ゴム支承の免震建物で観測された地震応答記録の数値シミュレーション2006

    • Author(s)
      杉山 佳孝, 栗田 哲, 豊嶋 学
    • Journal Title

      第12回日本地震工学シンポジウム

      Pages: 1014-1017

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] 5階建て免震建物の地震応答記録に基づく高減衰積層ゴムの復元力特性の解析-その1上部構造のシステム同定-2006

    • Author(s)
      鯉淵 崇任, 樋口 雅之, 熊谷 高博, 栗田 哲, 後藤 航
    • Journal Title

      第12回日本地震工学シンポジウム

      Pages: 1022-1025

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] 5階建て免震建物の地震応答記録に基づく高減衰積層ゴムの復元力特性の解析-その2復元力モデルの検証-2006

    • Author(s)
      後藤 航, 栗田 哲, 広谷 浄, 鯉淵 崇任
    • Journal Title

      第12回日本地震工学シンポジウム

      Pages: 1018-1021

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Restoring force model in small strain level for high damping rubber bearings base on seismic response records S2006

    • Author(s)
      E. KUDO, S. KURITA, W. GOTO, T. SASAKI
    • Journal Title

      The 12th Japan Earthquake Engineering Symposium

      Pages: 954-957

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Numerical simulation of earthquake response records observed in a building supported on lead-rubber bearings2006

    • Author(s)
      Y. SUGIYAMA, S. KURITA, M. TOYOSHIMA
    • Journal Title

      The 12th Japan Earthquake Engineering Symposium

      Pages: 1014-1017

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Analysis of restoring force of high damping rubber bearings from earthquake response records of a five story base-isolated building Part 1 System identification of superstructure2006

    • Author(s)
      T. KOIBUCHI, M. HOGUCHI, T. KUMAGAI, S. KURITA, W. GOTO
    • Journal Title

      The 12th Japan Earthquake Engineering Symposium

      Pages: 1022-1025

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Analysis of restoring force of high damping rubber bearings from earthquake response records of a five story base-isolated building Part 2 Verification of restoring force model2006

    • Author(s)
      W. GOTO, S. KURITA, K. HIROTANI, T. KOIBUCH
    • Journal Title

      The 12th Japan Earthquake Engineering Symposium

      Pages: 1018-1021

    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] 地震応答記録に基づく高減衰積層ゴムで支承された免震建物の振動システムの推定その1.上部構造の振動特性2006

    • Author(s)
      樋口 雅之, 熊谷 高博, 栗田 哲, 鯉淵 崇任, 後藤 航
    • Organizer
      日本建築学会学
    • Place of Presentation
      横浜
    • Year and Date
      20060800
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Estimation of vibration systems of a base-isolation building supported on high damping rubber bearings form response records (Partl) Vibration characteristics of superstructure2006

    • Author(s)
      M. HIGUCHI, T. KUMAGAI, S. KURITA, T. KOIBUCHI, W. GOT
    • Organizer
      Summaries of Technical Papers of Annual Meeting Architecture Institute of Japan
    • Place of Presentation
      Yokohama
    • Year and Date
      20060800
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-02-04  

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