A new approach for nonlinear finite element analysis of reinforced concrete structures with corroded reinforcements

Shayanfar, Mohsen Ali; Safiey, Amir

doi:10.12989/cac.2008.5.2.155

Cited by 11 publications

(4 citation statements)

References 6 publications

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“…Shayanfar and Safiey completed simpler and efficient model for strain pliable region that had presented before. That can consider reduction of concrete cohesion strength that creates from corrosion and creation of cracks due to corrosion [36]. Too According to conducted studies by these investigators, tension stiffness curve is composed of two separated states, which are named final crack state; so uniaxial tension strain-stress curve of reinforced concrete element can be divided into three states.…”

Section: -3 Reduction Strength Between Concrete and Steelmentioning

confidence: 99%

Simulation The Force- Displacement Behavior of Reinforced Concrete Beams Under Different Degrees and Locations of Corrosion

et al. 2021

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Regarding the failures due to corrosion, concern about corrosion damage has been intensified and some tests have been carried out in order to study the effect of corrosion on capability of bending and shear capacity of reinforced concrete beams. For as much as these studies is experimental commonly and using from its results subject to spend time and financial costs, this study is set to analyze behavior of corrosion found reinforced beams, using ABAQUS computer software. For this purpose, the sound reinforced concrete beams is modeled, first and simulating accuracy is confirmed by existing experiment results. Then corrosion found beams with different degrees are modeled by ABAQUS software and their results were compared with experimental results and finally, P-∆ charts are produced and provided for software models. In the way of simulations, effects of corrosion site, amount and intensity of corrosion, concrete compressive strength and bar yielding stress on behavior of reinforced concrete beams under corrosion is examined. In this investigation, the effect of different locations and different corrosion degrees is considered regarding changes which take place in cross section of steel, mechanical characteristics concrete and steel and integrity between steel and concrete.

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Section: -3 Reduction Strength Between Concrete and Steelmentioning

confidence: 99%

Simulation The Force- Displacement Behavior of Reinforced Concrete Beams Under Different Degrees and Locations of Corrosion

et al. 2021

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“…Wang et al (2015b) proposed a model which takes into account compat-ibility conditions with the partial length of corrosion and the bond loss. Han et al (2014) proposed the following relation-ship to obtain moment capacity of the (Dekoster et al 2003;Shayanfar and Safiey 2008). Finite element analysis (FEA) was also used to study the flexural behavior of different RC beams with corroded reinforcement (Coronelli and Gambarova 2004;Kallias and Rafiq 2010;Vu et al 2014;Jnaid and Aboutaha 2016).…”

Section: Analytical Studies On Flexural Behaviormentioning

confidence: 99%

A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams

2019

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“…Richard et al [ 17 ] and Al-Osta et al [ 18 ] investigated the damage of corroded RC beams by using different corroded bars and concrete interface models. Shayanfar and Safiey [ 19 ] proposed an algorithmic for producing the tension-stiffening curve of RC elements, taking into account factors such as the rate of steel bar corrosion, bond-slip behavior, concrete cover, and amount of reinforcement. Since numerous structures have been constructed and retrofitted by various types of new materials and techniques, the dynamic performance and shear capacity of RC structural members has been an important issue [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Damage Evolution of RC Beams Under Simultaneous Reinforcement Corrosion and Sustained Load

Shen

Gao

et al. 2019

Materials

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To accurately obtain the performance of concrete structures in coastal regions, it is necessary to correctly understand the damage evolution law of reinforced concrete (RC) members under real working conditions. In this paper, four RC beams, subjected to different levels of corrosion and sustained load, are first tested. Reinforcement corrosion coupled with sustained load increases the number and width of cracks at the soffit of beams but decreases their loading capacities. Crack width of the corroded beam under 50% of designed load is two times of that under 30% of designed load. Residual loading capacities of the corroded beams subjected to 30% and 50% of designed load are 87.5% and 81.8% of the control beam. A finite element model is developed for the corroded RC beams. Due to less confinement, concrete below and at the sides of reinforcements is subjected to a higher stress, compared to concrete above the reinforcements. Corrosion expansion of reinforcements is successfully modelled by a temperature-filed method, as it properly simulates the damage evolution of the corroded RC beams. As a result, concrete cracking, caused by the reinforcement corrosion, is well captured. Coupling reinforcement corrosion with sustained load significantly increases the damage level in RC beams, particularly for those subjected to a high sustained load. The whole damage evolution process of concrete cracking due to corrosion expansion under the coupling effect of sustained loading and environment can be simulated, thus providing a reference for the durability evaluation, life prediction, and numerical simulation of concrete structure.

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A new approach for nonlinear finite element analysis of reinforced concrete structures with corroded reinforcements

Cited by 11 publications

References 6 publications

Simulation The Force- Displacement Behavior of Reinforced Concrete Beams Under Different Degrees and Locations of Corrosion

Simulation The Force- Displacement Behavior of Reinforced Concrete Beams Under Different Degrees and Locations of Corrosion

A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams

Damage Evolution of RC Beams Under Simultaneous Reinforcement Corrosion and Sustained Load

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