火災時における鋼構造部材の信頼性解析

概要

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Reliability analysis of steel members during fire is carried out in this study. The density of fire load, the yield strength and the elastic modulus of steel are treated as statistically independent random variables with normal distribution. The verification method of structural fire resistance, which is defined in the Building Standard Law of Japan, is used to evaluate resistance times of steel members. The performance function is defined with duration of fire t_f and resistance time of a steel member t_<fr>. Probability of failure is calculated by using Monte Carlo Simulation technique. Results of the analysis indicate that if the occurrence rate of fire is considered the reliability indices against fire range from 2 to 3.5. These values are comparable to the reliability indices of steel members in ordinary temperature environment.
一般社団法人日本建築学会の論文
2002-03-20