Damage control of mullions formed in non-structural RC partition walls with openings considering stress transfer and failure mechanisms

• Project/Area Number: 24686063
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Building structures/materials
• Research Institution: Hiroshima University
• Principal Investigator: HIBINO Yo 広島大学, 工学(系)研究科(研究院), 准教授 (50456703)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000); Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2013: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
• Keywords: 鉄筋コンクリート構造 / 非構造壁 / 方立壁 / 破壊形式 / RC架構 / 変形性状 / 方立て壁 / 損傷制御

Outline of Final Research Achievements

The experimental tests of one-bay frame with mullions formed in non-structural wall to investigate behavior of mullions formed in non-structural reinforced concrete walls were carried out. The main findings can be summarized as follows: flexural behavior and shear behavior dominate in mullions in accordance with flexural bending behavior of wall and; axial force of mullions increase correspond to increase of drift which might lead to shear failure even if sufficient shear reinforcement are arranged. The failure mechanism assumed considering axial forces acts on mullions is agreed with experimental results.

Research Products

• [Presentation] RC柱部材におけるコンクリート内部の応力状態とせん断終局強度 (2015)
  • Author(s): 石田雄太郎，日比野陽
  • Organizer: 日本建築学会中国支部研究発表会
  • Place of Presentation: 米子工業高等専門学校
  • Year and Date: 2015-03-08
• [Presentation] 梁の変形性状が内蔵されるRC非耐力壁の変形に及ぼす影響 (2015)
  • Author(s): 査冬，高橋良輔，日比野陽
  • Organizer: 日本建築学会中国支部研究発表会
  • Place of Presentation: 米子工業高等専門学校
  • Year and Date: 2015-03-08
• [Presentation] RC造非構造壁の変形性状と周辺架構条件（その1 実験概要と実験結果） (2014)
  • Author(s): 日比野陽，藤谷涼
  • Organizer: 日本建築学会大会
  • Place of Presentation: 神戸大学
  • Year and Date: 2014-09-12
• [Presentation] RC造非構造壁の変形性状と周辺架構条件（その2 架構と方立て壁の変形性状） (2014)
  • Author(s): 藤谷涼，日比野陽
  • Organizer: 日本建築学会大会
  • Place of Presentation: 神戸大学
  • Year and Date: 2014-09-12
• [Presentation] RC造非構造壁の変形性状と周辺架構条件（その1 実験概要と実験結果） (2014)
  • Author(s): 日比野陽，藤谷涼
  • Organizer: 日本建築学会大会（近畿）
  • Place of Presentation: 神戸大学
• [Presentation] RC造非構造壁の変形性状と周辺架構条件（その2 架構と方立て壁の変形性状） (2014)
  • Author(s): 藤谷涼，日比野陽
  • Organizer: 日本建築学会大会（近畿）
  • Place of Presentation: 神戸大学