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Investigation of anomaly detection method for remote monitoring of highway bridges

Research Project

Project/Area Number 19K15072
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22020:Structure engineering and earthquake engineering-related
Research InstitutionKyoto University

Principal Investigator

Goi Yoshinao  京都大学, 工学研究科, 助教 (30831359)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords構造物ヘルスモニタリング / 損傷検知 / ベイズ統計 / 異常検知 / 橋梁 / 振動計測 / 構造ヘルスモニタリング / 振動特性 / 機械学習 / 季節変動 / 維持管理 / 橋梁振動 / ベイズ推論 / 道路橋
Outline of Research at the Start

本研究は、道路橋の遠隔的な異常検知技術の実現を目指して情報集約および意思決定過程の最適化を通じた実践的な事例研究を目的とする。上記目的の実現にあたり常時振動計測による異常検知に焦点を絞り、不確実な確率過程を伴う橋梁の振動現象についてベイズ統計による定式化を行うことで、意思決定に伴う一連の情報処理過程を統計的な観点から合理化する。具体的には、①長期計測時の統計的異常検知を目的とした機械学習技術の開発、②現地実験および有限要素解析に基づく振動特性と損傷形態との対応付け、③通信技術の制約を考慮したデータ集約方法の検討、④異常検知システムの開発および実橋梁における検証試験の4点について検討を行う。

Outline of Final Research Achievements

This study proposed machine learning to detect anomalies in long-term measurements, focusing on feature extraction using posterior probabilities. For temperature change, we attempted to evaluate the uncertainty of fluctuation by the posterior probability.
Knowledge of modal property fluctuation caused by damage was accumulated through field experiments on steel truss bridges, steel girder bridges, signposts, steel box girders, and so on. A method was also proposed to quantify the uncertainty in the vibration characteristics based on the measured data.
The data collection method and validation proceeded with the cloud server. In addition, a flow diagram was created to provide a basis for third parties to apply the proposed method.

Academic Significance and Societal Importance of the Research Achievements

振動特性に基づく異常検知の試みは既往の研究において数多くなされてきたが,特性を推定しそれらを比較する過程で技術者の経験が求められ,その手順は十分に一般化されてこなかった.このため,異常検知の可否は構造同定や統計の手法に依存する結果となり,これまで実務での振動モニタリングの利用は限定的であった.
本研究の成果により異常検知の手順を一般化することで,主観的な判断に基づく誤検出および見落としを避けやすくなると期待される.また,自動化により多数の橋梁についてスクリーニングを実施することが可能となる.以上より異常検知技術の社会実装において意義のある研究成果が得られたと考えられる.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020 2019

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (17 results) (of which Int'l Joint Research: 15 results,  Invited: 3 results)

  • [Journal Article] Fatigue crack detection using vibration data in a full-scale sign pole laboratory experiment2023

    • Author(s)
      市川 凌大、五井 良直、河邊 大剛、高瀬 和男、足立 幸朗、杉浦 邦征
    • Journal Title

      Journal of Structural Engineering, A

      Volume: 69A Issue: 0 Pages: 467-474

    • DOI

      10.11532/structcivil.69A.467

    • ISSN
      1881-820X
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bayesian anomaly detection for a steel plate girder bridge using optimized sensor arrangement by means of the EFI method2023

    • Author(s)
      尾中 貴輝、金 哲佑、五井 良直、河邊 大剛
    • Journal Title

      Journal of Structural Engineering, A

      Volume: 69A Issue: 0 Pages: 318-331

    • DOI

      10.11532/structcivil.69A.318

    • ISSN
      1881-820X
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] STOCHASTIC DAMAGE DETECTION OF BRIDGES USING CHARACTERISTIC POLYNOMIALS OF AUTO-REGRESSIVE MODELS2022

    • Author(s)
      五井 良直, 金 哲佑
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 78 Issue: 1 Pages: 11-22

    • DOI

      10.2208/jscejam.78.1_11

    • ISSN
      2185-4661
    • Related Report
      2022 Annual Research Report
  • [Journal Article] Data Normalization and Anomaly Detection in a Steel Plate-Girder Bridge Using LSTM2022

    • Author(s)
      Jiang Wen-Jie、Kim Chul-Woo、Goi Yoshinao、Zhang Feng-Liang
    • Journal Title

      ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering

      Volume: 8 Issue: 1 Pages: 04021082-04021082

    • DOI

      10.1061/ajrua6.0001203

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Vibration-Based Damage Detection for a Prestressed Concrete Box Girder by Means of Subspace Analysis2021

    • Author(s)
      Zhao Lei、Kim Chul-Woo、Goi Yoshinao、Takemura Kohei
    • Journal Title

      ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering

      Volume: 7 Issue: 4 Pages: 04021056-04021056

    • DOI

      10.1061/ajrua6.0001185

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ambient and Vehicle-Induced Vibration Data of a Steel Truss Bridge Subject to Artificial Damage2021

    • Author(s)
      Kim Chul-Woo、Zhang Feng-Liang、Chang Kai-Chun、McGetrick Patrick John、Goi Yoshinao
    • Journal Title

      Journal of Bridge Engineering

      Volume: 26 Issue: 7 Pages: 04721002-04721002

    • DOI

      10.1061/(asce)be.1943-5592.0001730

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ambient and vehicle-induced vibration data of a steel truss bridge subject to artificial damage2021

    • Author(s)
      Chul-Woo Kim; Feng-Liang Zhang; Kai-Chun Chang; Patrick John McGetrick; Yoshinao Goi
    • Journal Title

      Journal of Bridge Engineering

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 供用下のPC橋梁におけるベイズ異常検知法の適用2021

    • Author(s)
      河邊大剛,五井良直,金哲佑
    • Journal Title

      コンクリート工学年次論文集

      Volume: 43

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Efficient Bayesian FFT method for damage detection using ambient vibration data with consideration of uncertainty2020

    • Author(s)
      Zhang Feng‐Liang、Kim Chul‐Woo、Goi Yoshinao
    • Journal Title

      Structural Control and Health Monitoring

      Volume: 28 Issue: 2

    • DOI

      10.1002/stc.2659

    • NAID

      120007185928

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] UNCERTAINTY QUANTIFICATION OF ESTIMATED MODES OF BRIDGES USING BAYESIAN INFERENCE2019

    • Author(s)
      五井良直,金哲佑
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 75 Issue: 2 Pages: I_647-I_657

    • DOI

      10.2208/jscejam.75.2_I_647

    • NAID

      130007795494

    • ISSN
      2185-4661
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Unsupervised Machine Learning for Long-term Bridge Health Monitoring2023

    • Author(s)
      Yoshinao Goi
    • Organizer
      13th Taiwan-Japan Workshop on Structural and Bridge Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Prompt modal identification with quantified uncertainty of modal properties2022

    • Author(s)
      Yoshinao Goi
    • Organizer
      Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bayesian damage detection on full-scale pole structure with anchor bolt tension loosening2022

    • Author(s)
      Daigou Kawabe
    • Organizer
      Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bayesian Damage Detection Combined with Modal Identification2022

    • Author(s)
      Yoshinao Goi
    • Organizer
      IFIP2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Unsupervised Change Detection in Modal Properties of Steel Structures using Bayesian Hypothesis Testing2022

    • Author(s)
      Yoshinao Goi
    • Organizer
      German-Japanese Workshop on Research Frontiers in Structural Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time-domain modal identification of bridges based on uncertainty quantification2021

    • Author(s)
      Yoshinao Goi and Chul-Woo Kim
    • Organizer
      Life-Cycle Sustainability and Innovations, 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高力ボルト打撃時の母材振動応答を利用した残存軸力推定の試み2021

    • Author(s)
      五井良直
    • Organizer
      次世代構造技術者のWork in Progress 2021
    • Related Report
      2021 Research-status Report
  • [Presentation] Time-domain modal identification of bridges based on uncertainty quantification2021

    • Author(s)
      Goi Y.、Kim C.W.
    • Organizer
      IABMAS2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Investigation of efficient modal identification of bridges using bayesian inference2020

    • Author(s)
      Yoshinao Goi and Chul-Woo Kim
    • Organizer
      EURODYN,2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] INVESTIGATION OF EFFICIENT MODAL IDENTIFICATION OF BRIDGES USING BAYESIAN INFERENCE2020

    • Author(s)
      五井良直
    • Organizer
      EURODYN2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Time-domain modal identification of bridges based on uncertainty quantification2020

    • Author(s)
      五井良直
    • Organizer
      IABMAS2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ANOMALY DETECTION OF BRIDGES UNDER VARYING TEMPERATURE USING BAYESIAN HYPOTHESIS TESTING2020

    • Author(s)
      五井良直
    • Organizer
      ISRERM2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Vibration-Based Damage Detection of Steel Bridges Using Bayesian Hypothesis Testing2019

    • Author(s)
      金哲佑
    • Organizer
      ESREL2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Bayesian Damage Detection for Bridges under Noisy Condition2019

    • Author(s)
      五井良直
    • Organizer
      ICASP13
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Damage experiment on a steel plate girder bridge and vibration based damage detection2019

    • Author(s)
      金哲佑
    • Organizer
      SEMC2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Damage experiment on a steel plate girder bridge and local damage detection utilizing traffic-induced vibration2019

    • Author(s)
      金哲佑
    • Organizer
      SMAR2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ベイズ統計を用いた橋梁の振動モード同定の効率化に関する検討2019

    • Author(s)
      五井良直
    • Organizer
      応用力学シンポジウム
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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