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Evaluation system on the remaining life of road deck by data assimilation with NDTs and structural analysis

Research Project

Project/Area Number 18H01506
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22010:Civil engineering material, execution and construction management-related
Research InstitutionKanazawa Institute of Technology

Principal Investigator

TANAKA Yasushi  金沢工業大学, 工学部, 教授 (40377221)

Co-Investigator(Kenkyū-buntansha) 藤山 知加子  横浜国立大学, 大学院都市イノベーション研究院, 准教授 (60613495)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Keywords道路橋 / 床版 / レーダー信号処理 / 磁気計測 / 高精細画像 / ひび割れ / 滞水 / 余寿命 / 土砂化 / 腐食 / 非破壊試験 / マルコフ連鎖モデル / 定期点検 / PC橋 / 疲労 / コンクリート / 解析 / 劣化 / AI / 画像解析 / 診断 / 材料劣化 / レーダー / データ同化 / 構造解析
Outline of Final Research Achievements

Estimation system on the remaining fatigue life of concrete bridge deck was studied to develop the rational inspection and diagnosis in this research. Coupling system between structural analysis and non-destructive tests (NDTs) which had been recently developed, was proposed.
Demolition survey of existing road bridge deck verified that signal processing of 3D radar enables to detect stagnant water inside bridge deck even in the early stage where visual inspection is impossible to detect. Detection method for steel corrosion inside concrete structure was developed by the combination of magnetic measurement and numerical analysis. Moreover, remaining fatigue life of concrete bridge deck was estimated from high-resolution images which were periodically taken on the lower face. Crack width detected from image had significant change with climate.

Academic Significance and Societal Importance of the Research Achievements

研究は、現在、道路システムの維持管理で最も問題となっているコンクリート床版に対して、その点検診断に有用である技術の抽出と開発を行い、それらが実働するための検討と各種提案を行った点に大きな社会的意義がある。道路橋コンクリート床版の診断では、劣化を加速させる滞水現象の把握と、疲労損傷の進展具合を表す内部ひび割れの把握、コンクリートおよび鋼材の材料劣化の把握が重要である。現状ではそれらは目視調査と微破壊試験で実施されている。本研究で着目・開発した技術によれば、非破壊で情報を取得し、定量的に評価が可能となる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (28 results)

All 2021 2020 2019 2018

All Journal Article (12 results) (of which Peer Reviewed: 11 results,  Open Access: 6 results) Presentation (15 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Journal Article] 砂利をモルタルで部分的に固結したコンクリートの力学特性に基づく橋梁床版の砂利化機構に関する検討2021

    • Author(s)
      藤山 知加子, 仙頭 紀明, 子田 康弘
    • Journal Title

      構造工学論文集 A

      Volume: 67A Pages: 119-126

    • NAID

      130008025978

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 疲労損傷を受けたUFC床版より切出したはりを用いた繰返し荷重下のUFC部材破壊過程の検討2021

    • Author(s)
      徳武 恭一・藤山 知加子・永井 勇輔・濵﨑 浩太
    • Journal Title

      コンクリート工学年次論文集

      Volume: 43

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] BOND LOSS RESPONSE OF REINFORCED CONCRETE DAPPED-END BEAM SUBJECTED TO STATIC AND LOW CYCLE FATIGUE LOADING2021

    • Author(s)
      Ajibola Ibrahim QUADRI and Chikako FUJIYAMA
    • Journal Title

      コンクリート工学年次論文集

      Volume: 43

    • Related Report
      2020 Annual Research Report
  • [Journal Article] CFRPを緊張材に用いたPC部材の力学性能評価2020

    • Author(s)
      吉越大賀,田中泰司
    • Journal Title

      プレストレストコンクリートの発展に関するシンポジウム論文集

      Volume: 29

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 鋼材の腐食劣化が進行したPC連続箱桁橋の構造性能評価2020

    • Author(s)
      武田健太,田中泰司,伊藤裕章,大谷拓矢,登石清隆,樋口徳男
    • Journal Title

      構造工学論文集

      Volume: 66A Pages: 712-724

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fatigue Lifetime Prediction of Newly Constructed RC Road Bridge Decks2019

    • Author(s)
      Fathalla Eissa、Tanaka Yasushi、Maekawa Koichi
    • Journal Title

      Journal of Advanced Concrete Technology

      Volume: 17 Issue: 12 Pages: 715-727

    • DOI

      10.3151/jact.17.715

    • NAID

      130007772759

    • ISSN
      1346-8014, 1347-3913
    • Year and Date
      2019-12-24
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fatigue Life of RC Bridge Decks Affected by Non-Uniformly Dispersed Stagnant Water2019

    • Author(s)
      Fathalla Eissa、Tanaka Yasushi、Maekawa Koichi
    • Journal Title

      Applied Sciences

      Volume: 9 Issue: 3 Pages: 607-607

    • DOI

      10.3390/app9030607

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] FATIGUE STRENGTH AND DEFORMATION BEHAVIOR OF FLY ASH-BASED GEOPOLYMER CONCRETE2019

    • Author(s)
      Ryojiro KATO, Chikako FUJIYAMA and Januarti Jaya Ekaputri
    • Journal Title

      コンクリート工学年次論文集

      Volume: 41 Pages: 1997-2002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative deterioration assessment of road bridge decks based on site inspected cracks under stagnant water2019

    • Author(s)
      Eissa Fathalla, Yasushi Tanaka, Koichi Maekawa and Akito Sakurai
    • Journal Title

      Journal of ACT

      Volume: 17 Pages: 16-33

    • NAID

      130007581133

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fatigue life of RC bridge decks affected by non-uniformly dispersed stagnant water2019

    • Author(s)
      Eissa Fathalla, Yasushi Tanaka and Koichi Maekawa
    • Journal Title

      applied sciences

      Volume: 9 Pages: 607-607

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Remaining fatigue life assessment of in-service road bridge decks based upon artificial neural networks2018

    • Author(s)
      Eissa Fathalla, Yasushi Tanaka and Koichi Maekawa
    • Journal Title

      Engineering structures

      Volume: 171 Pages: 602-616

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative deterioration assessment of road bridge decks based on site inspected cracks2018

    • Author(s)
      Eissa Fathalla, Yasushi Tanaka, Koichi Maekawa and Akito Sakurai
    • Journal Title

      applied sciences

      Volume: 8 Pages: 1197-1197

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Numerical evaluation of remaining fatigue life of road bridge deck with data assimilation approach2021

    • Author(s)
      Yasushi Tanaka
    • Organizer
      IABMAS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 乾湿繰返し作用が断面修復材の付着強度に及ぼす影響2021

    • Author(s)
      田中泰司
    • Organizer
      第75回セメント技術大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Markov連鎖モデルを用いた東北地方の道路橋床版の劣化予測2021

    • Author(s)
      田中泰司
    • Organizer
      土木学会全国大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Numerical assessment of prestressed concrete bridge suffered from chloride attack2020

    • Author(s)
      Yasushi Tanaka
    • Organizer
      ConMat’20
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁気ストリーム法を用いたコンクリート内部の鉄筋破断検出位置の可視化2020

    • Author(s)
      田中泰司
    • Organizer
      土木学会全国大会第75回年次学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] CFRTPを緊張材に用いたPC部材の力学性能評価のための基礎研究2020

    • Author(s)
      平林和浩
    • Organizer
      土木学会中部支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] プレキャストPC床版の輪荷重走行試験に関する再現解析(1)2019

    • Author(s)
      柴崎晃
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] プレキャストPC床版の輪荷重走行試験に関する再現解析(2)2019

    • Author(s)
      楠畑菜津子
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 擬似クラック法を用いた既設RC床版のモデル化条件の検討2018

    • Author(s)
      高橋正也,藤山知加子,田中泰司,土田智,中野聡
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高性能カメラによる撮影画像のRC床版の維持管理への適用に関する一検討2018

    • Author(s)
      加藤修,田中泰司,大田孝二
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 固有振動数を用いた道路橋RC床版の疲労による剛性評価方法の検討2018

    • Author(s)
      土田智,中野聡,宮村正樹,藤山知加子,田中泰司
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 既設RC床版における疲労損傷度別S-N関係図を用いた床版余寿命予測に関する検討2018

    • Author(s)
      鍋田仁人,宮村正樹,中野聡,藤山知加子,田中泰司
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 数値解析によるプレキャストPC 床版の耐疲労性能評価にむけたモデル化手法の検討2018

    • Author(s)
      藤山知加子,本多弘樹,長尾千瑛 ,後藤俊吾
    • Organizer
      土木学会年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 全橋モデルと格間モデルを用いたRC床版のモデル化条件の比較検討2018

    • Author(s)
      高橋正也,藤山知加子,田中泰司
    • Organizer
      第10回道路橋床版シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 軽量骨材を用いたPC床版の破壊過程および耐荷力の検討2018

    • Author(s)
      藤山知加子,小林崇
    • Organizer
      プレストレストコンクリート工学会第27回シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Book] 数値解析による道路橋床版の構造検討小委員会成果報告書2019

    • Author(s)
      土木学会構造工学委員会
    • Total Pages
      290
    • Publisher
      土木学会
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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