S Saad-Eldeen

Experimental assessment of corroded steel box-girders subjected to uniform bending

This paper analyses the failure modes obtained in experiments of multispan corroded box-girders, representing midship hull sections subjected to a uniform bending moment. A comparison of the behaviour of three tested corroded box-girder specimens is performed with respect to collapse modes, strain measurements, residual stresses, load-displacement relationship, moment-curvature relationship and the effect of different corrosion levels on structural integrity.

Effect of corrosion degradation on ultimate strength of steel box girders

Abstract This paper presents an experimental study on the effect of corrosion degradation on the ultimate strength of corroded steel box girders. Two specimens, built as box girders, were immersed in natural sea water in a harbour. After corrosion, the box girder sections were tested under four-point loading, producing a constant bending moment until collapse. The effect of corrosion degradation on the ultimate strength of the box girder is analysed, and dissipated energy, compliance, ductility and elastic limit are verified and discussed. A significant reduction in the stiffness, stress–strain relationship and elastic modulus was observed.