杉材で被覆したアルミニウム合金部材の火災時における内部温度性状

日本建築学会

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タイトル別名
  • EXPERIMENTAL STUDY ABOUT TEMPERATURE DISTRIBUTION OF ALUMINUM ALLOY MEMBER COVERD WITH JAPANESE CEDAR BOARD EXPOSED TO STANDARD FIRE

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By an experiment and analysis, a comparison was made of the temperature of a total of 6 specimens of aluminum alloy member, which were 3 kinds of cross-section ( □-shaped and + -shaped pillars and II-shaped beam of double Web)covered with two kinds of Japanese cedar board (25mm and 35 mm thick), in a standard fire test. Experimental result shows fire endurance time of 40 min.〜 45 min. with 25mm thickness of cedar board and 50 min. 〜60 min. with 35 mm one, if limit temperature of aluminum alloy in structure is 350℃. The analysis result well followed the experiment result of the relation between temperature and time, and could suggest possibility of qualitative prediction of inside temperature in a fire.

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