Abstract
The representative standards for bridge design, such as the Japan Road Association's Erection Design Manual, the Japan Society of Civil Engineers' Erection Design Guidelines, DASt012 and DIN18800 provide verification equations for checking the safety of the web plates in the steel I-shape and box girder bridges and composite girder bridges applied patch loading. We clarified the background and characteristics of each code, the differences between these equations. Safety factor were calculated comparatively by the actual erection data. In this study, we clarified a characteristic and the difference of the buckling stability verification method of the web plates applied patch loading for 5 codes. As a result of having compared verification equations based on the election data of the actual bridges, we proposed the CASE (1)-7 as the appropriate verification method.
