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1990 Fiscal Year Final Research Report Summary

Shear Design Method for Reinforced Concrete Interior Beam-Column Connections

Research Project

Project/Area Number 63420043
Research Category

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

Allocation TypeSingle-year Grants
Research Field Building structures/materials
Research InstitutionThe University of Tokyo

Principal Investigator

OTANI Shunsuke  University of Tokyo, Faculty of Engineering Associate, Professor, 工学部, 助教授 (30133101)

Co-Investigator(Kenkyū-buntansha) KITAYAMA Kazuhiro  Utsunomiya University, Faculty of Engineering, Research Associate, 工学部, 助手
TASAI Akira  University of Tokyo, Faculty of Engineering, Research Associate, 工学部, 助手 (40155057)
HOSOKAWA Yoji  University of Tokyo, Faculty of Engineering, Research Associate, 工学部, 助手 (60011235)
AOYAMA Hiroyuki  University of Tokyo, Faculty of Engineering, Professor, 工学部, 教授 (80010669)
Project Period (FY) 1988 – 1990
KeywordsReinforced Concrete Structure / Beam-column Connection / Earthquake Resistant Design / Shear Failure / Design Method / 実験的研究
Research Abstract

This is the final year of three-year research project, a research report was prepared. Major research findings are summarized below :
1. Shear in a beam-column connection is normally considered to be resisted by truss mechanism and strut mechanism, but the truss mechanism is not reliable because the bond resistance is difficult to maintain within the connection after beam yielding,
2. The lateral reinforcement placed in the beam-column connection does not contribute to the shear resistance, but is effective confining the connection after shear cracking,
3. The transverse beams, even after flexural yielding under orthogonal earthquake loading, are effective in increasing shear resistance of the connection,
4. Slab was also found effective in increasing shear resistance of the connection.
From the above research findings, design criteria are proposed to prevent shear failure within the connection up to a story drift angle of 0.02 or to a beam ductility factor of 4.0 ; i. e.,
1. The shear stress in the connection should be kept below 0.25 times the concrete compressive strength,
2. If transverse beams are connected to the connection, the limit on shear stress level may be relieved to 0.33 times the concrete strength.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 北山 和宏、朝倉 英博、小谷 俊介、青山 博之: "鉄筋コンクリ-ト造骨組における内柱・梁接合部の耐震設計法" 第10回コンクリ-ト工学年次論文報告. 10ー3. 491-496 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北山 和宏、小谷 俊介、青山 博之: "鉄筋コンクリ-ト造内柱・梁接合部の横補強筋機能の実験的検討" 日本建築学会大会学術講演梗概集. 構造IIC. 423-424 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北山 和宏、小嶋 千洋、小谷 俊介、青山 博之: "高せん断力を受ける鉄筋コンクリ-ト造内柱・梁接合部の挙動" 第11回コンクリ-ト工学年次論文報告集. 11ー2. 531-536 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北山 和宏、小谷 俊介、青山 博之: "鉄筋コンクリ-ト造内柱・梁接合部のせん断耐力におけるひびわれた直交梁の影響" 日本建築学会大会学術講演梗概集. 構造IIC. 455-456 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北山 和宏、小谷 俊介、青山 博之: "地震力を受ける鉄筋コンクリ-ト内柱・梁接合部の履歴挙動に関する実験的研究" 第8回地震工学シンポジウム論文集. 1407-1412 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kitayama,K,S,Otani,H,Aoyama: "Development of Design Criteria for RC Interior BeamーColumn Joints" ACI Special Publication. (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kitayama, K., H. Asakura, S. Otani, and H. Aoyama: ""Earthquake Resistance Design Criteria for Interior Beam-column connections in Reinforced Concrete Moment-resisting Frames"" Proceedings, JCI. Vo1.10, No. 3. 491-496 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitayama, K., S. Otani, and H. Aoyama: ""Experimental Study on the Role of Lateral Reinforcement in Reinforced Concrete Interior Beam-column Connections"" Summary of Technical Papers of Annual Meeting, AIJ, Structures II. 423-424 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitayama, K., C. Ojima, S. Otani, and H. Aoyama: ""Behavior of Reinforced Concrete Interior Beam-column Connections under High Shear"" Proceedings, JCI. Vo1.11, No. 2. 531-536 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitayama, K., S. Otani, and H. Aoyama: ""Influence of Cracked Transverse Beams on Shear Resistance of Reinforced Concrete Interior Beam-column Connections"" Summary of Technical Papers of Annual Meeting, AIJ, Structures II. 455-456 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitayama, K., S. Otani, and H. Aoyama: ""Experimental Study on Hysteretic Behavior of Reinforced Concrete Interior Beam-column Connection under Earthquake Excitation"" Proceedings, Eighth Japan National Earthquake Engineering Symposium. 1407-1412 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitayama, K., S. Otani, and H. Aoyama: ""Development of Design Criteria for RC Interior Beam-column Joints"" ACI Special Publication. (1991)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-08-12  

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