Abstract
The occurrence of heavily corrosion at the bottom of steel girder ends has been reported. For such situation, analytical and experimental studies on corroded steel girder ends have been carried out. However, in the practical cases, countermeasures for the girder ends have tended to be qualitatively judged ever. This study aims to summarize conventional analytical and experimental data for corroded girder ends. After creating graphs, which represent the influence of corrosion on load-carrying capacity of girder ends, their characteristics are investigated. Herein, the authors set parameters as the remaining thickness ratio, the reduction rate of yield strength that is calculated from structural details and so on. Based on this graphs, equations that estimate the reduction of the load-carrying capacity are proposed considering the lower limit of the reduction rate from the case without damage. Furthermore, by showing the relationship between ultimate and yield strengths without damage and reaction forces, information on the judgement for countermeasure of repair is provided.
