Experimental bond behaviour of a CFRP strengthening system for concrete elements at elevated temperatures

Carlos, Thiago Brazeiro; Rodrigues, João Paulo C.

doi:10.1016/j.conbuildmat.2018.10.184

Cited by 14 publications

(2 citation statements)

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“…Based on the challenges discussed above, it is fundamental the development of accurate models to simulate the CFRP-concrete bond behavior with good predictions for temperatures above T g and that consider the complexities mentioned above are essential. In this regard, the present research intends to be an important contribution in fire safety engineering, since its objective is the develop an accurate model capable to simulate the fire behavior of CFRPstrengthened concrete beams, based on valuable experimental results reported in two parallel studies by Carlos et al [32] and by Carlos and Rodrigues [33]. Therefore, this research becomes essential to bring a deep/better understanding and fill the gaps on the fire behavior of this type of composite structures, also contributing to further research.…”

Section: Justification and Objectivesmentioning

confidence: 99%

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CFRP-strengthened RC beams under fire condition: numerical model

Carlos

Silva

2023

Rev. IBRACON Estrut. Mater.

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The Carbon Fiber Reinforced Polymer (CFRP) has excellent flexural performance on strengthening and rehabilitation of reinforced concrete (RC) structures. However, it is known that CFRP strengthening systems are very vulnerable to high thermal exposure. To provide a better understanding of its fire behavior and fulfill gaps in this field, this investigation proposes the development of an accurate three-dimensional (3D) Finite Element (FE) model capable of simulating the CFRP-strengthened RC beams flexural behavior at ambient temperature and under fire conditions. To achieve the goals, thermal and mechanical numerical simulations have been performed to validate the developed FE models. Experimental results reported in two parallel studies were used to model’s validation. The numerical model has been satisfactorily validated and the results had a good predictability with the experimental results in terms of thermal and mechanical behavior.

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Section: Justification and Objectivesmentioning

confidence: 99%

“…Thus, two bond damage criteria were adopted: maximum nominal stress and fracture energy. These values (temperature-dependent) were inputted in the FE model based on the experimental data obtained from the SST tests performed by Carlos and Rodrigues [33].…”

Section: Boundary Loading and Contact Conditionsmentioning

confidence: 99%