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http://dx.doi.org/10.14190/JRCR.2021.9.2.143

An Experimental Study on the Deflection Estimation of RC Flexural Member by Corrosion of Reinforcement  

Kim, Jee-Sang (Department of Civil & Architecture Engineering, SeoKyeong University)
Moon, Hyeong-Gab (Korea Engineering Consultant Crop.)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.9, no.2, 2021 , pp. 143-151 More about this Journal
Abstract
Flexural test of reinforced concrete beam with corroded reinforcement were performed to measure the deflection, curvature and cracking moment for various bar diameter and amounts of corrosion. The amounts of corrosion are varied from 0% to 10% by weight and the bar diameters are chosen as 10mm, 13mm, and 19mm. The changes in reinforcement diameter do not affect the flexural behaviors significantly according to this experiment. If the amounts of corrosion is greater than 2%, the deflection and curvature of the beam increased and the cracking moment decreased. It means that the lower amounts of corrosion does not result structural damage in flexural member significantly as in direct tensile test. A modification factor considering an effect of amounts of corrosion is proposed based on the experiment, which can be used to determine the deflection of reinforced concrete beam with corroded reinforcement.
Keywords
Corroded reinforcement; Amounts of corrosion; Deflection; Curvature; Flexural behavior;
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