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World Journal of Engineering
Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

ISSN 2454-695X

Impact Factor : 5.924

ICV : 79.45

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Indexing

Abstract

FINITE ELEMENT MODEL OF CORRODED-DAMAGED REINFORCED CONCRETE PILE USING ABAQUS

FINITE ELEMENT MODEL OF CORRODED-DAMAGED REINFORCED CONCRETE PILE USING ABAQUS

ABSTRACT

This study presents a finite element model of reinforced concrete square pile structures using the ABAQUS program. Concrete damaged plasticity (CDP) was used to model the behavior of both corroded and uncorroded reinforced concrete piles. The CDP parameters were calibrated and compared with the control model to validate the accuracy of the results of the parametric study. A numerical parametric analysis was performed to investigate critical parameters such as cracking of the concrete, steel cross-sectional area reduction, and degradation of the bonding strength of concrete materials and steel reinforcement rebars. The results verify that the loss of strength of the steel rebars and concrete has a significant influence on the residual life and serviceability of reinforced concrete pile columns. It was verified that the selected nonlinear finite element analysis FEA simulated the behavior of corrosion-deteriorated pile columns accurately, and the numerical results established good correlations with the experimental results. Constructing a finite element analysis (FEA) model to simulate the effects of corrosion on reinforced concrete piles using ABAQUS is in good agreement with the experimental results and the deterioration of actual reinforced concrete piles. The stresses exerted by the corrosion products lead to the initiation of corrosion beneath the concrete surface. The loss of bonds between concrete and steel causes sudden failure, and the elements behave as unreinforced columns. The crack pattern depends on the bond strength. The spalling of concrete at the upper part requires more anchor reinforcements to avoid early deterioration due to corrosion. If the pile has a sufficient embedded length and the steel reinforcement is well anchored at their ends, a reduction in bond strength does not affect its serviceability and residual life.

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