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Splitting-Bond strength of RC Structures

Research Project

Project/Area Number 03650464
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Building structures/materials
Research InstitutionMeiji University

Principal Investigator

KANOH Yoshikazu  Dept.of Architecture, School of Science and Technology, Meiji University, Prof., 理工学部, 教授 (80061860)

Co-Investigator(Kenkyū-buntansha) TAKAGI Hitoyuki  Dept.of Architecture, School of Science and Technology, Meiji University, Assist, 理工学部, 助手 (70130820)
Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1992: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1991: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsSplitting bond failure / Inner rebars / Double-layred longitudinal reinforcements / Splitting bond strength / Shearing stress / Effect of transverse reinforcements / 二段配筋 / 高強度鉄筋 / はり・柱 / 鉄筋コンクリート構造 / 付着強度 / 二段配置 / 鉄筋コンクリ-ト / 高強度せん断補強筋
Research Abstract

This report is Splitting-Bond strength formulation for Inner rebars of double-layred longitudinal reinforcements.
It was confirmed that splitting bond strength at inner rebars was much smaller than the value of the equation developed by Hujii and Morita. Therefore, the specimens of the cantilever type were tested with the variation of bar diameter db, transverse reinforcement, the ratio gamma of total tensile force of outer rebars to that of inner rebars. Consequently, the ratio gamma increased, the splitting bond strength at inner rebars in no transverse reinforcement and the effect of transverse reinforcements were reduced. On the equal ratio gamma, As transverse reinforcements were increaced, the splitting bond strength at inner rebars and the slip of longitudinal reinforcements were increased.
Splitting-Bond strength of inner rebars is decresedby shearing stress of outer rebars, and effect of transvers reinforcements become low. Arenged these things, we suggest Splitting-Bond strength formula for inner rebars without transvers reinforcements and with transvers reinforcements that make indexs transvers reinforcements quantity, shearing stress and so on. We find the formula conforms bond strength of beam experiments.

Report

(4 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 狩野芳一,高木仁之,川村厚司,対比地健一: "主筋の配列と横補強筋の効果が主筋の付着性状に及ぼす影響(その3.実験概要及び実験結果)(その4.実験結果の検討)" 日本建築学会学術講演梗概集. C構造II. pp.935-938 (1992.8)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 狩野芳一,高木仁之,川村厚司,対比地健一: "二段配筋における内側主筋位置での付着割裂破壊(その1.実験概要及び実験結果)(その2.実験結果の検討)" 日本建築学会学術講演梗概集. C構造II. pp221-224 (1993.9)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 狩野芳一,高木仁之,川村厚司,対比地健一: "二段配筋の内側主筋位置における付着割裂破壊" コンクリート工学年次論文報告集. Vol.16,No.2. pp.241-246 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 狩野芳一,高木仁之,増田浩之,対比地健一: "二段配筋における内側主筋位置での付着割裂破壊(その3・実験概要及び実験結果)(その4.付着割裂強度算定式の提案)" 日本建築学会学術講演梗概集. C構造II. pp.645-648 (1994.9)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kenichi Tsuihiji, Atsushi Kawamura, Hitoyuki Takagi and Yoshikazu Kanoh: "Experimental Study on Splitting-bond Failure - Effects of Transverse Reinforcements and Behavers of Double-Layr Longitudinal Bars - (Part 3 Outlines of Test and Failure Mode of Specimens) and (Part 4 Discussion on Test Results)" Summaries of technical papers of annual meeting A.I.J., Structures. II. 935-938 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kenichi Tsuihiji, Atsushi Kawamura, Hitoyuki Takagi and Yoshikazu Kanoh: "Experimental Study on Splitting-bond Failure - Effects of Transverse Reinforcements and Behavers of Double-Layr Longitudinal Bars - (Part 1 Outlines of Test and Failure Mode of Specimens) and (Part 2 Discussion on Test Results)" Summaries of technical papers of annual meeting A.I.J., Structures. II. 221-224 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kenichi Tsuihiji, Atsushi Kawamura, Hitoyuki Takagi and Toshikazu Kanoh: "Splitting-Bond Failure along the Inner Re-Bars of Double-layred Longitudinal Reinforcements" Proceeding of the Japan Concrete Institute. Vol.16, No.2. 241-246 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hitoyuki Masuda, Kenichi Tsuihiji, Hitoyuki Takagi and Yoshikazu Kanoh: "Splitting-Bond Failure at Inner Re-Bars of Double-layred Longitudinal Reinforcements (Part 3 Outlines of Test and Test Results) and (Part 4 Splitting-Bond-strength Formulation)" Summaries of technical papers of annual meeting A.I.J., Structures. II. 645-648 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 狩野芳一 他: "二段配筋における内側主筋位置での付着割裂破壊(その1.実験概要及び実験結果)" 日本建築学会大会学術講演梗概集. 構造II. 221-222 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 狩野芳一 他: "二段配筋における内側主筋位置での付着割裂破壊(その2.実験結果の検討)" 日本建築学会大会学術講演梗概集. 構造II. 222-223 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 狩野 芳一: "主筋の配列と横補強筋の拘束効果が主筋の付着性状に及ぼす影響 (その3. 実験概要及び実験結果)" 日本建築学会大会学術講演梗概集. 北陸. 935-936 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 狩野 芳一: "主筋の配列と横補強筋の拘束効果が主筋の付着性状に及ぼす影響 (その4.実験結果の検討)" 日本建築学会大会学術講演梗概集. 北陸. 937-938 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 狩野 芳一,富岡 香織 他: "主筋の配列と横補強の拘束効果が主筋の付着性状に及ぼす影響(その1.実験概要及び実験結果)" 日本建築学会学術講演梗概集 1991年度大会(東北). 361-362 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 狩野 芳一,川村 厚司 他: "主筋の配列と横補強の拘束効果が主筋の付着性状に及ぼす影響(その2.検討結果)" 日本建築学会学術講演梗概集 1991年度大会(東北). 363-364 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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