Proposal for design concept and investigation on mechanical behavior of bolted and bonded connections of FRP members by using FRP bolts
| Project/Area Number |
16H04397
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Nagoya University |
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Principal Investigator |
Kitane Yasuo 名古屋大学, 工学研究科, 准教授 (10444415)
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| 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)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| 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)
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| Keywords | FRP / 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 |
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| 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.
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| 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．
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Report
(4 results)
Research Products
(8 results)
