Since a study on the fatigue failure of bridge was conducted in 1930's, a full-scale study on fatigue behavior has been conducted from 1960's in America and continuous study is still in progress over the world. However, in the domestic situation, a st...
Since a study on the fatigue failure of bridge was conducted in 1930's, a full-scale study on fatigue behavior has been conducted from 1960's in America and continuous study is still in progress over the world. However, in the domestic situation, a study or a test on fatigue failure of bridge is poor owing to the lack of understanding for an importance of fatigue failure, thus it was not until 1992 that the fatigue provisions was specified in KHDC. In this study, the detail categories were classified on the basis of the fatigue provisions already developed in foreign country through the investigation for fatigue-prone details, inspection was also conducted for 14 existing steel bridges. Also, a standard of non-destructive inspection for the welded member, a guide for rehabilitation and inspection of fatigue crack and a guide for the fatigue design were suggested to improve the fatigue life of existing bridges or to remedy the weak details for fatigue in designing new steel bridges.