Simulation of the Behavior of Corrosion Damaged Reinforced Concrete Beams with/without CFRP Retrofit

Zabihi-Samani, Masoud; Shayanfar, Mohsen Ali; Safiey, Amir; Najari, A.

doi:10.28991/cej-0309148

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…Concrete is a brittle material in tension and has different behavior in compression and tension. OPENSEES software demonstrated the reliable numerical results and the result of the concrete modeling has been verified [21]. The performance of OPENSEES software has been validated in several numerical and experimental studies [22][23][24].…”

Section: Introductionmentioning

confidence: 80%

The Effectiveness Investigation of New Retrofitting Techniques for RC Frame against Progressive Collapse

Shayanfar¹,

Bigonah²,

Sobhani³

et al. 2018

CivileJournal

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Progressive collapse in a building has caused local and subsequent damage throughout the system to spread and large-scale causes the collapse of the entire building. Progressive collapse is usually due to fire, gas explosion, terrorist attack, vehicle collisions, misplaced design and construction. Therefore, it is necessary to study the iMPact of this phenomenon and rebuild the building against it. Based on this, in this research, we will examine and evaluate practical solutions for reinforcing reinforced concrete frames against progressive collapse. The proposed solutions in this study were the use of reinforcing bars at the top and bottom of the beam, the effect of the layout of the cross section reinforcement for the participation in the chain performance, the use of Carbon Fiber Reinforced Polymer (CFRP) sheet at the bottom and three sides of the beam and the effect of the additional layer of CFRP sheet in the section performance of the beam against progressive collapse. In this study, a 2-story frame is modeled using OpenSees software and retrofitted with the above techniques, and the effectiveness of each of these techniques is evaluated in the final performance. The results show that the best approach to reinforcing the beam is by rebar and CFRP, which has resulted in improved chain performance and the greatest reduction of vertical displacement in the beam.

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Section: Introductionmentioning

confidence: 80%

The Effectiveness Investigation of New Retrofitting Techniques for RC Frame against Progressive Collapse

Shayanfar¹,

Bigonah²,

Sobhani³

et al. 2018

CivileJournal

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“…In later years, according to bars corrosion importance in concrete structures, this case has been noted and investigated by numerous investigators [12][13][14]. Further studies proceed to study of displacement-force operation under shear beam [15,16]. In other Sample, Hassan et al proceed to provide displacement-force diagram for reinforced concrete beams under corrosion different degrees [17,18].…”

Section: -Introductionmentioning

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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“…The structures made of green concrete are environmentally sustainable and are constructed in such a way that the total impact on the environment during their full life cycle, including service life, is reduced to minimum. Cement substitution is important for sustainable construction because the production of cement not only uses a considerable amount of energy, but also emits a substantial amount of CO2 and other greenhouse gases (Mehta 2002;Zabihi-Samani et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Effects of Fly Ash on Mechanical Properties of Concrete

Zabihi-Samani

Mokhtari

Raji

2018

Journal of Applied Engineering Sciences

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Cement is a common and widespread building material over the world. Similarly, carbon dioxide emissions have been significantly increased due to cement production. Alternative low-carbon binders rather than cement have been progressively sought in recent years. Fly ash was found as an available option, since it is being largely disposed annually as a waste material. In this research several studies have been reviewed and recent applications of fly ash on concrete specification, including strength and fracture toughness of green concrete have been perused. Furthermore, transport properties of high volume fly ash after exposure to high temperature and influence of curing temperature on strength development of fly ash-recycled concrete aggregate blends have been investigated. The investigated test results showed that the properties of composites incorporating fly ash depend on the age of the concrete. Test results also revealed that transport properties of concrete increased notably after exposure to 400cº and the results achieved on fly ash-recycled concrete aggregate led to the conclusion that 15% FA is the optimum blend for road stabilization applications.

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Simulation of the Behavior of Corrosion Damaged Reinforced Concrete Beams with/without CFRP Retrofit

Cited by 9 publications

References 16 publications

The Effectiveness Investigation of New Retrofitting Techniques for RC Frame against Progressive Collapse

The Effectiveness Investigation of New Retrofitting Techniques for RC Frame against Progressive Collapse

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

Effects of Fly Ash on Mechanical Properties of Concrete

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