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2021 Fiscal Year Annual Research Report

Development of Seismic Damage Assessment Method for Instrumented Large Civil Structures using Sparse Representation Techniques

Research Project

Project/Area Number 18K04320
Research InstitutionYokohama National University

Principal Investigator

シリンゴリンゴ ディオン  横浜国立大学, 先端科学高等研究院, 特任教員(准教授) (60649507)

Project Period (FY) 2018-04-01 – 2022-03-31
Keywordssystem identification / seismic records / seismic-isolated bridge / sparse representation / wavelet decomposition / moveable bearing / structural monitoring
Outline of Annual Research Achievements

Structural identification by sparse representation model was developed and implemented using real data from full-scale seismic monitoring of three bridges. In the Tokachi Bridge sparse time-invariant,time-variant recursive subspace identification and sparse regularization methods were developed to confirm influence of moveable SFP bearings on bridge responses. In Katsuta Viaduct,techniques for detecting bearing malfunction from bridge seismic response were developed using wavelet transform time-varying identification and statistical sparse clustering technique.In Shin-Nakagawa Bridge an-FE model was developed and damages related to isolation bearing were simulated. The results were compared with monitoring from 63 seismic events in 45 months (2017-2020) using the CWT-DWT and sparse model analysis.

  • Research Products

    (8 results)

All 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results) Presentation (3 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Implementation of Wireless Sensor Network for Continuous Seismic Monitoring of Isolated Cable-Stayed Bridge2022

    • Author(s)
      Dionysius M Siringoringo, Yozo Fujino, Makoto Suzuki
    • Journal Title

      Journal of Bridge Engineering ASCE

      Volume: 27(4) Pages: 04022011-1-15

    • DOI

      10.1061/(ASCE)BE.1943-5592.0001813

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modal analysis and tension estimation of stay cables using noncontact vision-based motion magnification method2022

    • Author(s)
      Samten Wangchuk, Dionysius M. Siringoringo, Yozo Fujino
    • Journal Title

      Structural Control Health Monitoring

      Volume: NA Pages: 1-25

    • DOI

      10.1002/stc.2957

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Influence of movable bearings performance on the dynamic characteristics of a cable-stayed bridge : insights from seismic monitoring records2021

    • Author(s)
      Dionysius M Siringoringo, Yozo Fujino
    • Journal Title

      Bulletin of Earthquake Engineering

      Volume: NA Pages: 1-33

    • DOI

      10.1007/s10518-021-01282-y

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Wavelet-Based Analysis for Detection of Isolation Bearing Malfunction in a Continuous Multi- Span Girder Bridge2021

    • Author(s)
      Dionysius M Siringoringo, Yozo Fujino
    • Journal Title

      Journal of Earthquake Engineering

      Volume: NA Pages: 1-31

    • DOI

      10.1080/13632469.2020.1868363

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Noncontact operational modal analysis of light poles by vision-based motion-magnification method2021

    • Author(s)
      Dionysius M Siringoringo, Samten Wangchuk, Yozo Fujino
    • Journal Title

      Engineering Structures

      Volume: 244 Pages: 112728-1-14

    • DOI

      10.1016/j.engstruct.2021.112728

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Continuous Seismic Monitoring of Seismically-Isolated Cable-Stayed Bridge by Wireless Sensor Network2021

    • Author(s)
      Dionysius M. Siringoringo
    • Organizer
      17 World Conference on Earthquake Engineering (WCEE)
    • Int'l Joint Research
  • [Presentation] Seismic Monitoring of Cable-Stayed Bridge using Wireless Sensor Networks2021

    • Author(s)
      Dionysius M. Siringoringo
    • Organizer
      IABMAS Conference 2021
    • Int'l Joint Research
  • [Presentation] Vision-based vibration measurement of Stay-cables by Video Motion Magnification and Dynamic Mode Decomposition2021

    • Author(s)
      Dionysius M. Siringoringo
    • Organizer
      EVACES 2021
    • Int'l Joint Research

URL: 

Published: 2022-12-28  

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