Abstract
The load-carrying capacity of corroded steel-bridges may be reduced due to cross sectional area reduction, surface non-uniformity, and unexpected stress concentration. Unfortunately, there is still no suitable means to evaluate their remaining load-carrying capacity. In this study, we quantitatively evaluated bearing capacities of girder ends extracted from replaced corroded steel girder bridge by experimental and finite element analytical method. As a consequence, it was found that the remaining bearing capacities (maximum loads) decreased as corrosion rates increased but were still higher than the design load, there is a close relationship between remaining bearing capacity and minimum of residual cross sectional areas throughout the height of the fictitious column at the girder end.
