An investigation of detailingroefinforced concrete by the evaluation of performance of anchorage and concrete compaction

• Project/Area Number: 23656278
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: The University of Tokyo
• Principal Investigator: NAGAI Kouhei 東京大学, 生産技術研究所, 准教授 (00451790)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: コンクリート / 過密配筋 / 離散解析 / 3次元離散解析 / 微細構造解析 / 定着性能 / 横方向筋 / 微弱領域 / 施工性能 / 鉄筋間通過 / 脆弱領域

Research Abstract

Three-dimensional mesoscopic analyses were conducted to evaluate the anchorage performance of reinforced concrete under multi-directional reinforcement arrangement.Also, particle model was adopted to simulate the flow of fresh concrete into the congested region where the concrete was modeled by two-phase model, mortar and aggregate.

Research Products

• [Journal Article] "Investigating the effects of reinforcement arrangement on the anchorage of reinforcement using the three-dimensional discrete analysis"Proceedings of the 4th Bond in Concretreeinforcement arrangement on the Conference (2012)
  • Author(s): Daisuke HAYASHI, Kohei NAGAI
  • Journal Title: Benny SURYANTO Volume: Vol.1 Pages: 185-192
• [Journal Article] An Analytical Investigation of Anchorage Performance of Mechanical Anchorage by 3D Discrete Model (2012)
  • Author(s): Kohei NAGAI, Daisuke HAYASHI
  • Journal Title: Proceedings of The 4th Asia-Pacific Young Researchers &Graduates Symposium Volume: Vol.1 Pages: 130-138
• [Journal Article] 三次元離散解析による鉄筋あきが定着性能に及ぼす影響の評価 (2012)
  • Author(s): 林大輔,長井宏平,吉武謙二、小倉大季
  • Journal Title: コンクリート工学年次論文集 Volume: Vol.34,No.1 Pages: 559-564
  • Peer Reviewed
• [Journal Article] Three-Dimensional Analysis of Flow ofFresh Concrete as Two Phase Model by MPS (2012)
  • Author(s): Koichro IKUTA, Kohei NAGAI
  • Journal Title: 土木学会第67回年次学術講演会 Volume: Vol.67 Pages: 135-136
• [Journal Article] 三次元離散解析による鉄筋あきが定着性能に及ぼす影響の評価 (2012)
  • Author(s): 林大輔，長井宏平，吉武謙二、小倉大季
  • Journal Title: コンクリート工学年次論文集 Volume: Vol.34，No.1 Pages: 559-564
  • Peer Reviewed
• [Journal Article] Numerical Simulation of Beam-Column Joint with Simple Reinforcement Arrangement by Three-dimensional RBSM (2012)
  • Author(s): Koichro IKUTA, Daisuke HAYASHI, Kohei NAGAI
  • Journal Title: Proceedings of 11th International Symposium on New Technology for Urban Safety of Mega Cities in Asia (USMCA) Volume: Vol. 1 Pages: 173-180
• [Journal Article] Investigating the effects of reinforcement arrangement on the anchorage of reinforcement using the three-dimensional discrete analysis (2012)
  • Author(s): Daisuke HAYASHI, Kohei NAGAI, Benny SURYANTO
  • Journal Title: Proceedings of the 4th Bond in Concrete Conference Volume: Vol. 1 Pages: 185-192
• [Journal Article] Three-Dimensional Analysis of Flow of Fresh Concrete as Two Phase Model by MPS (2012)
  • Author(s): Koichro IKUTA, Kohei NAGAI
  • Journal Title: 土木学会第67回年次学術講演会 Volume: Vol 67 Pages: 135-136
• [Journal Article] 柱梁接合部の構造性能に及ぼす梁主鉄筋の曲げ内半径および寸法効果の影響 (2012)
  • Author(s): 吉武謙二，小倉大季，小川晃，長井宏平，林大輔
  • Journal Title: 土木学会第67回年次学術講演会 Volume: Vol 67 Pages: 501-502
• [Journal Article] 3次元離散解析による定着法と構成材料の定着部破壊性状への影響の検討 (2011)
  • Author(s): 林大輔,井上友,長井宏平
  • Journal Title: コンクリートと補強材の付着挙動と付着構成則に関するシンポジウム論文集 Volume: Vol.1 Pages: 309-319
• [Journal Article] Three-dimensional Analysis of Anchorage Failure of RC by Discrete Analysis Method (2011)
  • Author(s): Daisuke HAHASHI, Kohei NAGAI, Yu INOUE
  • Journal Title: Proceedings of International Conference on Recent Advances in Nonlinear Models CoRAN2011
• [Journal Article] 三次元RBSM解析による鉄筋コンクリートの定着性能の評価 (2011)
  • Author(s): 井上友，長井宏平
  • Journal Title: コンクリート工学年次論文集 Volume: 33 Pages: 643-648
  • Peer Reviewed
• [Journal Article] 定着長を変化させたフックのひずみ分布と三次元解析による検討 (2011)
  • Author(s): 林大輔，井上友，長井宏平
  • Journal Title: コンクリート工学年次論文集 Volume: 33 Pages: 589-594
  • Peer Reviewed
• [Journal Article] ３次元離散解析による定着法と構成材料の定着部破壊性状への影響の検討 (2011)
  • Author(s): 林大輔，井上友，長井宏平
  • Journal Title: コンクリートと補強材の付着挙動と付着構成則に関するシンポジウム論文集 Volume: 1 Pages: 309-319
• [Presentation] An Analytical Investigationof Anchorage Performance of Mechanical Anchorage by 3D Discrete Model (2012)
  • Author(s): 長井宏平
  • Organizer: The 4th Asia-Pacific Young Researchers &Graduates Symposium
  • Place of Presentation: 香港,中国
  • Year and Date: 2012-12-05
• [Presentation] Three-Dimensional Analysisof Flowof Fresh Concreteas Two Phase Modelby MP (2012)
  • Author(s): 生田浩一郎
  • Organizer: S土木学会第67回年次学術講演会
  • Place of Presentation: 名古屋
  • Year and Date: 2012-09-05
• [Presentation] 三次元離散解析による鉄筋あきが定着性能に及ぼす影響の評価 (2012)
  • Author(s): 林大輔
  • Organizer: コンクリート工学年次講演会
  • Place of Presentation: 広島
  • Year and Date: 2012-07-04
• [Presentation] Investigating the effects of reinforcement arrangement on the anchorage of reinforcement using the three-dimensional discrete analysis (2012)
  • Author(s): 林大輔
  • Organizer: 4th Bond in Concrete Conference
  • Place of Presentation: ブレシア(イタリア)
  • Year and Date: 2012-06-18
• [Presentation] 三次元離散解析による鉄筋あきが定着性能に及ぼす影響の評価 (2012)
  • Author(s): 林大輔
  • Organizer: コンクリート工学年次大会2012
  • Place of Presentation: 広島
• [Presentation] Three-Dimensional Analysis of Flow of Fresh Concrete as Two Phase Model by MPS (2012)
  • Author(s): Koichro IKUTA
  • Organizer: 土木学会第67回年次学術講演会
  • Place of Presentation: 名古屋
• [Presentation] Three-dimensional Analysis of Anchorage Failure of RC by Discrete Analysis Method (2011)
  • Author(s): 林大輔
  • Organizer: International Conference on Recent Advances in Nonlinear Models CoRAN2011
  • Place of Presentation: ポルト(ポルトガル)
  • Year and Date: 2011-11-24
• [Presentation] 3次元離散解析による定着法と構成材料の定着部破壊性状への影響の検討 (2011)
  • Author(s): 林大輔
  • Organizer: コンクリートと補強材の付着挙動と付着構成則に関するシンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2011-09-16