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Proposal for design concept and investigation on mechanical behavior of bolted and bonded connections of FRP members by using FRP bolts

Research Project

Project/Area Number 16H04397
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionNagoya University

Principal Investigator

Kitane Yasuo  名古屋大学, 工学研究科, 准教授 (10444415)

Co-Investigator(Kenkyū-buntansha) 松本 幸大  豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (00435447)
橋本 国太郎  神戸大学, 工学研究科, 准教授 (40467452)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2016: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
KeywordsFRP / ボルト・接着併用接合 / FRPボルト / 接合部耐力 / オールFRP構造 / 設計思想
Outline of Final Research Achievements

To utilize high corrosion resistance of FRP composites, this study aimed at achieving all-FRP structure by proposing hybrid bolted-bonded joints of FRP members with FRP bolts. As a result of this study, it was shown that failure process of a hybrid bolted-bonded joint is an initial debonding failure, a complete debonding failure, and a connection failure. The load at the complete debonding failure was found to be the load bearing capacity of the joint which was larger than that of a bonded connection. The bearing capacity of a hybrid joint did not decrease drastically after the complete debonding failure due to the bearing-type load transfer mechanism of FRP bolts.

Academic Significance and Societal Importance of the Research Achievements

FRPは耐食性に優れていることから,腐食環境の厳しい地域での構造物への採用事例が多くみられるが,接合部に鋼製の留め具を利用した場合は,留め具が腐食することにより,FRPの特長を活かしきれていない現状がある.本研究の成果により,接合部も含めオールFRP構造を実現し,よりFRPの特長を活かし,ライフサイクルコストも低減できるFRP構造物を提案することが可能となる.また,本研究では,FRPの損傷進展解析方法を提案しており,数値解析によってFRP構造物の限界状態をより正確に把握することが可能となる.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (8 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] GFRPの繊維方向の引張および圧縮破壊モードにおける限界エネルギー解放率に関する実験的研究2019

    • Author(s)
      北村勇斗,北根安雄
    • Journal Title

      土木学会論文集A1

      Volume: 75

    • NAID

      130007656620

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] FRPボルトによるFRP部材の多列配置の支圧ボルト接合部の耐力評価に関する研究2019

    • Author(s)
      王 超,北根安雄,松本幸大,橋本国太郎
    • Organizer
      平成30年度土木学会中部支部研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] FRP材料の支圧破壊を考慮した損傷進展解析に関する研究2019

    • Author(s)
      寺口大輝,北村勇斗,北根安雄
    • Organizer
      第74回土木学会次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 多軸基材により補強した引抜成形GFRP材のボルト接合部の支圧強度2018

    • Author(s)
      高嶋秀樹,Phan Viet Nhut,三枝玄希,北根安雄,橋本国太郎,松本幸大
    • Organizer
      第7回FRP複合構造・橋梁に関するシンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] GFRPの繊維方向の引張および圧縮破壊モードにおける限界エネルギー解放率に関する実験的研究2018

    • Author(s)
      北村勇斗,北根安雄
    • Organizer
      第7回FRP複合構造・橋梁に関するシンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Mechanical behavior of connection of pultruded glass fiber reinforced polymer plates using FRP bolts and adhesive2017

    • Author(s)
      Phan Viet Nhut, Yukihiro Matsumoto, Kunitaro Hashimoto, Yasuo Kitane
    • Organizer
      International Conference of Global Network for Innovative Technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fundamental study on Joint Strength of FRP plates using FRP bolt and Adhesive2017

    • Author(s)
      Phan Viet Nhut,Yukihiro MATSUMOTO,Kunitaro HASHIMOTO, Yasuo KITANE
    • Organizer
      第72回土木学会次学術講演会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FRPボルトによるFRP部材の支圧ボルト接合部の耐力評価に関する研究2017

    • Author(s)
      王超,北根安雄,松本幸大,橋本国太郎
    • Organizer
      第72回土木学会次学術講演会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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