Fire resistance Ⅱ

[1222] TEMPERATURE DISTRIBUTION IN CRACKED MORTAR PRISM IN FIRE CONDITION

Mohammad Mahdi RAOUF FARD¹, Atsuko TOMINAGA², Masanobu SAKASHITA², Minehiro NISHIYAMA² (1.Kyoto University 2.京都大学)

Keywords:crack, elevated temperatures, fire test, mortar, reinforced concrete, temperature distribution, FEM analysis, 鉄筋コンクリート, モルタル, 高温度, ひび割れ, 耐火実験, 温度分布, FEM解析

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A series of fire tests on reinforced concrete (RC) members have been conducted to study the structural response of different parts exposed to elevated temperatures. However, the effect of crack had not been investigated fully yet. Since cracks make the entire RC structure susceptible to fire, the present paper studies effect of cracks on internal temperature distributions by conducting a series of fire tests on mortar prism specimens along with FEM analyses. The cracked zone tended to attain higher internal temperatures than its adjacent intact zones.