Study on Ductile Property of Corroded Reinforced Concrete Beam

摘要

Ductility of corroded doubly reinforced concrete beam sections with a range of reinforcement corrosion and concrete degradation was studied. The ductility of reinforced concrete beams corroded by sulfate (SCRCB), in which the normal assumptions of plane section behavior held true, and chloride (CCRCB), in which the normal assumptions of plane section behavior did not hold true, was discussed. Based on mechanical tests on the corroded beams, the section analysis method and fractal theory were applied to study the ductility of corroded beams. A simplified expression is proposed to predict the ductility factor for corroded beams. A relationship between the fractal dimension and the ductility factor of the beam was found.