1988 年 1988 巻 392 号 p. 403-410
Fatigue crackings in 180 steel bridges are summarized and presented as a data base in personal computers. This data base includes the histories of bridge, details of structure, types of cracking, causes of cracking and retrofitting methods. By using the reference function of data base, the service life and occurrence of crack of bridges, typical cracks and their causes in various bridge details, and the fatigue strengths of connections are discussed.