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Effect of Corrosion on Remaining Life and Failure’s Mode of Steel I-Beam Sections


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Abstract


Corrosion of steel structures is a serious problem throughout the world. Clearly either general or localized corrosion reduce the strength of steel structures. The objective of this paper is to investigate the effects of corrosion on the remaining life and failure's mode of steel I-beam sections. Thickness loss data were compiled from three samples of corroded damaged I-beams, removed from a petrochemical industry. Corrosion damaged models have been developed for steel I-beams based on thickness loss data. These models are used to deal with the effects of corrosion on the strength of steel I-beams. The results indicate that as a beam is corroded the mode of failure may change. The lateral torsional buckling is the critical failure mode at the early stage of corrosion and after several years of corrosion the local buckling of flanges becomes the critical failure mode.
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Keywords


Corrosion; Failure Modes; I-Beam Section; Remaining Strength; Steel Structures

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References


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