Shear Strength of Corroded Plate Girder Bridge

Structural function abilities of steel plate girder bridges with corrosion damages are not clear yet sufficiently. This paper reports the results examined analytically for girder shear strengths by referring to the data of web plate thicknesses measured for the steel plate girder bridge damaged severely by chloride attack during 28 years. The models of the web plate with the corrosion aspects measured were analyzed using elastic-plastic finite element approach. The effectiveness of the corrosion aspects on the girder shear strength is revealed through comparison with available measurement data of the corroded web plate thicknesses.