Development of explosive behavior and structural performance evaluation method of concrete in fire

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360171
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Nagoya University
• Principal Investigator: NAKAMURA HIKARU 名古屋大学, 工学(系)研究科(研究院), 教授 (60242616)
• Co-Investigator(Kenkyū-buntansha): YAMAMOTO Yoshihito 名古屋大学, 大学院工学研究科, 准教授 (70532802) ; UEDA Naoshi 関西大学, 環境都市工学部, 准教授 (20422785)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 火災 / 爆裂 / 材料劣化 / 剛体バネモデル / トラスネットワーク / シート補強 / 鉄筋 / 数値解析

Outline of Final Research Achievements

The verification method of explosive behavior and structural safety under high temperature such as fire was developed. The method is integrated method of 3-dimensional Rigid Body Spring Method based on dynamic equation of motion as structural analysis and TRUSS network model as mass transfer analysis. Moreover, the method was extended to consider continuous explosive behavior, mechanical properties change with temperature history and thermal effect to reinforcing bar. It was confirmed that the method can evaluate explosive behavior, the effects of several factors on explosive behavior and structural performance in and after fire.

Free Research Field

コンクリート構造