Assessment for reusability and functional preservation of steel structures after a fire

• Project/Area Number: 23760541
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Building structures/materials
• Research Institution: Building Research Institute
• Principal Investigator: SUZUKI Junichi 独立行政法人建築研究所, 防火研究グループ, 主任研究員 (10453846)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 火災 / 火害 / 再使用性 / 鋼構造 / 非構造部材 / 熱応力 / 耐火設計 / 加熱冷却 / 鋼架構 / 機能維持 / 残留応力 / 再加熱

Research Abstract

The objective of this research project is to assess fire damage of steel construction buildings and re-usability. Residual stress and deformation in structural steel elements were examined to understand the performance of structures after a fire. Damage estimation for the relation between damage of building's structures and non-structural elements was also conducted in this study.The severe damages of outer columns and beams largely affect the fall of exterior walls; however, some exceptions where severe damages of inner structure affect the fall of exterior walls were observed. Localization of a fire was the most effective measure to mitigate degradation of stiffness of structures and residual stress in structures.

Research Products

• [Journal Article] 鋼構造建築物の火災時における非構造材飛散に関する研究 (2013)
  • Author(s): 除村直樹、鈴木淳一、磯部大吾郎
  • Journal Title: 計算工学講演会論文集 Volume: 第18巻(CD-ROM)
  • NAID: 40019693332
• [Journal Article] 鋼構造建築物の火災時における非構造材飛散に関する研究 (2013)
  • Author(s): 除村直樹，鈴木淳一，磯部大吾郎
  • Journal Title: 第18回計算工学講演会論文集 Volume: 第18巻
  • NAID: 40019693332
• [Presentation] Damage Estimation of Steel Frame Buildings under Fire Using Collapse Analysis (2014)
  • Author(s): J. Suzuki, N. Yokemura and D. Isobe
  • Organizer: Extended Abstracts of the 1st International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2014)
  • Place of Presentation: Sendai, Japan
• [Presentation] Damage Estimation of Steel Frame Buildings under Fire Using Collapse Analysis (2014)
  • Author(s): Jun-ichi Suzuki, Naoki Yokemura, Daigoro Isobe
  • Organizer: Computational Engineering and Science for Safety and Environmental Problems
  • Place of Presentation: 仙台
• [Presentation] 火災時における非耐力壁の落下飛散範囲に関する数値解析的検討 (2013)
  • Author(s): 除村直樹、鈴木淳一、磯部大吾郎
  • Organizer: 日本建築学会学術講演梗概A-2分冊
• [Presentation] 日本火災学会研究発表概要集 (2013)
  • Author(s): 鈴木淳一
  • Organizer: 火災を受けた鋼架構の機能維持・再使用性に関する研究複数スパン火災時の挙動と残留応力解放メカニズム
• [Presentation] 火災時における非耐力壁の落下飛散範囲に関する数値解析的検討 (2013)
  • Author(s): 除村直樹, 鈴木淳一, 磯部大吾郎
  • Organizer: 日本建築学会
  • Place of Presentation: 札幌
• [Presentation] 火災を受けた鋼架構の機能維持・再使用性に関する研究 複数スパン火災時の挙動と残留応力解放メカニズム (2013)
  • Author(s): 鈴木淳一
  • Organizer: 日本火災学会
  • Place of Presentation: 熊本
• [Presentation] 火災を受けた鋼架構の機能維持・再使用性に関する研究-複数スパン火災時の挙動と残留応力解放メカニズム (2013)
  • Author(s): 鈴木淳一
  • Organizer: 日本火災学会
  • Place of Presentation: 熊本
• [Presentation] 鋼構造建築物の火災時における 非構造材飛散に関する研究 (2013)
  • Author(s): 除村直樹，鈴木淳一，磯部大吾郎
  • Organizer: 計算工学会
  • Place of Presentation: 東京
• [Presentation] 火災時における非耐力壁の落下飛散範囲に関する数値解析的検討 (2013)
  • Author(s): 除村直樹，鈴木淳一，磯部大吾郎
  • Organizer: 日本建築学会
  • Place of Presentation: 北海道
• [Presentation] 火災を受けた鋼架構の機能維持・再使用性に関する研究 (2012)
  • Author(s): 鈴木淳一、古山智史
  • Organizer: 日本火災学会研究発表概要集
• [Presentation] 火災を受けた鋼架構の機能維持・再使用性に関する研究 (2012)
  • Author(s): 鈴木淳一, 古山智史
  • Organizer: 日本火災学会
  • Place of Presentation: 宇都宮