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Computational modeling strategy for nonlinear response prediction of corroded reinforced concrete circular piers

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Document pages: 15 pages

Abstract: A numerical model is proposed to simulate the nonlinear bending response of corroded reinforced concrete (RC) members. The model adopts nonlinear fiber beam column element based on force. A new phenomenological uniaxial material model of corroded reinforcement is adopted. The model considers the effects of corrosion on the buckling strength, post buckling behavior and low cycle fatigue degradation of vertical reinforcement under cyclic loading. The effectiveness of the basic material model is verified by comparing the simulated and observed responses of non corroded reinforced concrete columns. The model is used to investigate the effect of corrosion on the inelastic response of corroded reinforced concrete columns.

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