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Title: Comparative post-yield performance evaluation of flexure member with corroded reinforcement
Authors: Yadav D.
Kwatra N.
Agarwal, Pankaj
Published in: Structure and Infrastructure Engineering
Abstract: Existing plastic hinge models for reinforced concrete beams do not consider the effect of reinforcement corrosion. This paper represents the plastic hinge model of corroded Reinforced Concrete (RC) beams tested experimentally as well as investigated analytically through nonlinear finite element modeling. An attempt is then made to arrive at simple empirical equation for maximum moment including the percentage of corrosion, using soft computing technique of Genetic Programming (GP). Simply supported beams are analysed with varying grades of concrete and type of reinforcement along with the condition of reinforcement by applying two-point loading (approximately 1/3rd and 2/3rd of span) and verified with the experiments performed. Test results show that the model can accurately predict the force deflection response and failure mode. The results show decrease in the moment and rotation capacity with the increase in corrosion percentage of reinforcement bars used in RC beams. The equation obtained as an output of GP models indicates the influence of yield strength of reinforcement, concrete grade and percentage of corrosion of RC beam over maximum moment carrying capacity. � 2020 Informa UK Limited, trading as Taylor & Francis Group.
Citation: Structure and Infrastructure Engineering, 17(1): 103-123
Issue Date: 2021
Publisher: Taylor and Francis Ltd.
Keywords: concrete grade
corroded reinforcement bar
finite element modeling
genetic programming
maximum moment capacity
Plastic hinge model
RC (reinforced concrete) beam
seismic qualification
ISSN: 15732479
Author Scopus IDs: 57203989417
Author Affiliations: Yadav, D., Department of Civil Engineering, Thapar Institute of Engineering & Technology, Patiala, India
Kwatra, N., Department of Civil Engineering, Thapar Institute of Engineering & Technology, Patiala, India
Agarwal, P., Department of Earthquake Engineering, IIT Roorkee, Roorkee, India
Corresponding Author: Yadav, D.; Department of Civil Engineering, India; email:
Appears in Collections:Journal Publications [EQ]

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