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Buckling performance of the corroded reinforcing bars considering the effects of corrosion pits

Abstract The stress concentration around the pit leads to the deterioration of tension and compression performance of corroded steel bars. The influence laws of buckling loads and buckling models of corroded steel bars caused by different slenderness ratios, corrosion pit diameters, corrosion pit locations and relative depth of corrosion pits were analysed. The results of this study show that slenderness ratios and corrosion pit diameters are the main factors influencing the corroded steel bar buckling loads. The results also show that corrosion pit locations change the corroded reinforcement buckling models. The compression loads of smaller diameter corroded reinforcement bars with corrosion pits are significantly affected.