Simulation of the force-displacement behavior of reinforced concrete beams under different degrees and locations of corrosion

Concerns about corrosion damage have been intensified due to the failure in marine structures and bridges. In this study, several simulations and tests have been accomplished to investigate the e ect of corrosion on bending and shear capacities of reinforced concrete beams. By using ABAQUS software, this research is set to analyze the other effects of corrosion on reinforced beams. The accuracy of simulation results has been verified by existing experiment results. Several concrete beams with different degrees of corrosion are modeled in ABAQUS software. The results of simulation were compared with experimental results. Moreover, force-displacement diagrams are produced to investigate the corrosion effects more precisely. This study investigates effects of corrosion location, amount and intensity of corrosion, concrete compressive strength, and bar yielding stress on reinforced concrete beams strength. Furthermore, the effects of different locations and different corrosion degrees in steel rebar area and integration between steel and concrete are evaluated due to corrosion. Results demonstrate that corrosion effect on the loading capacity of beams in the tension region is greater than that in the compressive part. Furthermore, the corrosion around support regions is remarkable.