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Restoring-force model for reinforced concrete members failing in shear or bond after yielding

Research Project

Project/Area Number 14350301
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Building structures/materials
Research InstitutionNagoya Institute of Technology

Principal Investigator

ICHINOSE Toshikatsu  Nagoya Institute of Technology, Faculty of Engineering, Professor, 工学研究科, 教授 (10151474)

Co-Investigator(Kenkyū-buntansha) UMEMURA Hisashi  Nagoya Institute of Technology, Faculty of Engineering, Associate Professor, 工学研究科, 助教授 (70324473)
Project Period (FY) 2002 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥15,400,000 (Direct Cost: ¥15,400,000)
Fiscal Year 2005: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2004: ¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2003: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 2002: ¥5,700,000 (Direct Cost: ¥5,700,000)
Keywordsconcrete / columns / size-effect / shear failure / restoring-force / epoxy resin / CT scanning / フーリエ解析 / 柱 / 塑性変形 / ばらつき / エポキシ樹脂 / 載荷履歴 / 横補強筋 / 繰り返し / 軸力 / 圧縮破壊
Research Abstract

The first objective of this study is to establish a restoring-force model for reinforced concrete members failing in shear after flexural yielding. Twenty specimens of reinforced concrete columns are tested under constant axial load. Test parameters were concrete strengths, amount of longitudinal and shear reinforcement, and the dimensions. Some of them had dimensions similar to actual columns, while the others had dimensions about a half of actual columns. Most of them failed in shear after cyclic inelastic load reversals. Piano wires were embedded in the specimens so that average transverse strains in the core concrete were measured. In some cases, core concrete strain was larger than several ten times of the strain in the transverse reinforcement. At the maximum deflection of some of the specimens, epoxy resin was injected. After the resin hardened, the specimens were unloaded. Then, CT scanning was conducted to obtain three-dimensional image of the cracks in each specimen. The results agreed with the measured strains in the core concrete. Such findings were utilized to propose a restoring-force model for reinforced concrete members failing in shear after flexural yielding.
The second objective of this study is to establish a model for bond splitting failure in reinforced concrete. The specimen parameters include bar diameter, rib shape, cover thickness, and the presence/absence of confining reinforcement. The experimental results show that the size-effect is mainly attributable to brittle splitting cracks, and not to local crushing of concrete in front of the bar ribs. Based on this finding, we proposed equations that yield a large size effect for splices with small cover and short splice length, where brittle failure is expected. The proposed equations agree with both the experimental results presented in this study and the bulk of the experimental data reported in the literature.

Report

(5 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (26 results)

All 2006 2005 2004 2003 Other

All Journal Article (23 results) Publications (3 results)

  • [Journal Article] 曲げ降伏後にせん断破壊するRC柱の変形性能に関する寸法効果2006

    • Author(s)
      花井伸明, 平林聖尊, 市之瀬敏勝, 新田兼也, 梅村恒
    • Journal Title

      日本建築学会構造系論文集 No.601

      Pages: 143-149

    • NAID

      110004839933

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] モールクーロンの破壊基準に基づくRC柱部材のせん断挙動評価2006

    • Author(s)
      花井伸明, 平林聖尊, 市之瀬敏勝
    • Journal Title

      コンクリート工学年次論文集 Vol.28(印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Size Effect on Deformation Capacity of RC Columns Failing in Shear after Flexural Yielding2006

    • Author(s)
      Nobuaki Hanai, Masataka Hirabayashi, Toshikatsu Ichinose, Kazuya Nitta, Hisashi Umemura
    • Journal Title

      Journal of Structural and Construction Engineering(Transactions of AIJ No.601

      Pages: 143-149

    • NAID

      110004839933

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Evaluation of Shear Behavior on RC Columns based on Mohr-Coulomb's Failure Criterion2006

    • Author(s)
      Nobuaki Hanai, Masataka Hirabayashi, Toshikatsu Ichinose
    • Journal Title

      Proceedings of the Japan Concrete Institute No.28

    • NAID

      10019915843

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effect of Loading History on Strength Deterioration of RC Members2005

    • Author(s)
      Nobuaki Hanai, Kosuke Nishimura, Hisashi Umemura, Toshikatsu Ichinose
    • Journal Title

      The First International Concrete on Advances in Experimental Structural Engineering Vol.2

      Pages: 821-827

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 曲げ降伏後にせん断破壊するRC柱の耐力低下に影響する因子2005

    • Author(s)
      花井伸明, 梅村恒, 市之瀬敏勝
    • Journal Title

      日本建築学会構造系論文集 No.593

      Pages: 129-136

    • NAID

      110004839752

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] The Factors Which Influence Strength Deterioration of RC Columns Failing in Shear after Flexural Yielding2005

    • Author(s)
      Nobuaki Hanai, Toshikatsu Ichinose, Hisashi Umemura
    • Journal Title

      Journal of Structural and Construction Engineering(Transactions of AIJ) No.593

      Pages: 129-136

    • NAID

      110004839752

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 耐力低下を考慮した鉄筋コンクリート建物の倒壊率2005

    • Author(s)
      丸橋奈々子, 高橋憲之, 市之瀬敏勝, 梅村恒
    • Journal Title

      コンクリート工学年次論文報告集 Vol.27, No.2

      Pages: 1033-1038

    • NAID

      110009695990

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 載荷履歴と配筋がRC柱の耐力低下に及ぼす影響に関する実験的研究2004

    • Author(s)
      花井伸明, 市之瀬敏勝, 梅村恒, 野田聡
    • Journal Title

      コンクリート工学年次論文集 Vol.26

      Pages: 175-180

    • NAID

      110009695229

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Experimental Study on the Effects of Loading History on the Ductility Capacity of Reinforced Concrete Members2004

    • Author(s)
      Hisashi UMEMURA, Toshikatsu ICHINOSE
    • Journal Title

      Proceedings of the 13th world Conference on Earthquake Engineering

      Pages: 1301-1301

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Size effect on bond strength of deformed bars2004

    • Author(s)
      T.Ichinose, Y.Kanayama, Y.Inoue, J.E.Bolander Jr.
    • Journal Title

      Construction and Building Materials Vol.18,No.7

      Pages: 549-558

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 異形鉄筋の付着割裂破壊に関する解析的研究2004

    • Author(s)
      小椋紀行, 市之瀬敏勝
    • Journal Title

      日本建築学会構造系論文集 No.586

      Pages: 147-154

    • NAID

      110004092862

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effect of Loading History and Reinforcement on Strength Deterioration of RC Columns2004

    • Author(s)
      Nobuaki Hanai, Toshikatsu Ichinose, Hisashi Umemura, Satoshi Noda
    • Journal Title

      Proceedings of the Japan Concrete Institute Vol.26

      Pages: 175-180

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Experimental Study on the Effects of Loading History on the Ductility Capacity of Reinforced Concrete Members2004

    • Author(s)
      Hisashi UMEMURA, Toshikatsu ICHINOSE
    • Journal Title

      Proceedings of the 13th World Conference on Earthquake Engineering

      Pages: 1301-1301

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Size effect on bond strength of deformed bars2004

    • Author(s)
      T.Ichinose, Y.Kanayama, Y.Inoue, J.E.Bolander Jr.
    • Journal Title

      Construction and Building Materials Vol.18 No.7

      Pages: 549-558

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Analytical Study on Splitting bond failure of deformed bars2004

    • Author(s)
      Noriyuki Ogura, Toshikatsu Ichinose
    • Journal Title

      Journal of Structural and Construction Engineering(Transactions of AIJ) 586

      Pages: 147-154

    • NAID

      110004092862

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 載荷履歴と配筋がRC柱の耐力低下に及ぼす影響に関する実験的研究2004

    • Author(s)
      花井伸明, 市之瀬敏勝, 梅村恒, 野田聡
    • Journal Title

      コンクリート工学年次論文報告集

      Pages: 175-180

    • NAID

      110009695229

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 載荷履歴と中子筋の有無がRC部材の復元特性に及ぼす影響2003

    • Author(s)
      梅村恒, 市之瀬敏勝, 松澤敦行
    • Journal Title

      コンクリート工学年次論文集 Vol.25,No.2

      Pages: 1093-1098

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 鉄筋とコンクリートの付着強度に関する有限要素解析2003

    • Author(s)
      小椋紀行, 愈兆彊, 付長徳, 市之瀬敏勝
    • Journal Title

      コンクリート工学年次論文集 Vol.25,No.2

      Pages: 949-954

    • NAID

      110009694676

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 異形鉄筋の付着割裂強度に関する解析的考察2003

    • Author(s)
      小椋紀行, 付長徳, 市之瀬敏勝
    • Journal Title

      日本建築学会構造工学論文集 Vol.49B

      Pages: 187-192

    • NAID

      110009705765

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effect of Loading History and Stirrups on the Strength Degradation Properties of RC Members2003

    • Author(s)
      Hisashi Umemura, Toshikatsu Ichinose, Atsuyuki Matsuzaka
    • Journal Title

      Proceedings of the Japan Concrete Institute Vol.25 No.2

      Pages: 1093-1098

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Finite Element Analysis of Bond Strength between Deformed Bar and Concrete2003

    • Author(s)
      Noriyuki Ogura, Chokyo Yu, Changde Fu, Toshikatsu Ichinose
    • Journal Title

      Proceedings of the Japan Concrete Institute Vol.25 No.2

      Pages: 949-954

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Analytical Discussion on Splitting Bond Strength of Deformed Bars2003

    • Author(s)
      Noriyuki Ogura, yu, Changde Fu, Toshikatsu Ichinose
    • Journal Title

      Journal of Structural Engineering Vol.49B

      Pages: 187-192

    • NAID

      110009705765

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] 梅村恒, 市之瀬敏勝, 松澤敦行: "載荷履歴と中子筋の有無がRC部材の復元特性に及ぼす影響"コンクリート工学年次論文報告集. 25・3(CD-ROM). (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 西村公佑, 野田聡, 村瀬正樹, 梅村恒, 市之瀬敏勝: "載荷履歴と中子筋の有無がRC部材の耐力低下に及ぼす影響(その1 実験概要と荷重-変形関係)"日本建築学会大会学術講演梗概集(東海). (CD-ROM). (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 村瀬 正樹: "載荷履歴と中子筋の有無がRC部材の耐力低下に及ぼす影響"日本建築学会東海支部研究報告書. 第41号. 353-356 (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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