2020
DOI: 10.1590/s1983-41952020000600005
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Abstract: Concrete with recycled aggregate is a fragile material under tensile stresses. However, like conventional concrete, it is possible that its contribution is relevant in the design of reinforced concrete elements under tension or bending, even after cracking. The objective of this work is to evaluate the application of the analytical models used to predict the effect of tension stiffening on recycled reinforced concrete. Tests of reinforced concrete under tensile were performed using conventional concrete and co… Show more

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Cited by 5 publications
(6 citation statements)
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“…As the load increases, a second linear section is formed whose slope represents the stiffness EI II of the cracked beam and is defined primarily by the reinforcement rate. However, the cracked concrete can contribute to the stiffness in a phenomenon called the tension-stiffening effect [18] .…”
Section: Resultsmentioning
confidence: 99%
“…As the load increases, a second linear section is formed whose slope represents the stiffness EI II of the cracked beam and is defined primarily by the reinforcement rate. However, the cracked concrete can contribute to the stiffness in a phenomenon called the tension-stiffening effect [18] .…”
Section: Resultsmentioning
confidence: 99%
“…As shown in Figure 2 beam A1, A2 and B1 shows higher peak load and displacement compared to the beam tested by Bresler and Scordelis and Vecchio and Shim [16]. This could be caused by the addition of a tension stiffening effect which according to [25] the tension stiffening effect is expressed as the contribution of the intact concrete between the cracks to the stiffness of the structural elements or the ability of the intact concrete between the cracks to withstand some of the resulting tensile forces. In this model, the tension stiffening effect was considered and resulting increase of shear and flexural strength of the reinforced concrete beam.…”
Section: A Load-deflection Comparisonmentioning
confidence: 88%
“…For the tension stiffening that will be used in the modelling in this paper, the equation used is based on [15]. According to [25] the tension stiffening effect is defined as the ability of the intact concrete between the cracks to withstand part of the tensile forces or the contribution of the intact concrete between the cracks to the stiffness of the structural element. The tension stiffening in the plasticity fracture model can be computed using Equation 1:…”
Section: Methodsmentioning
confidence: 99%
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“…However, when we want to test the block experimentally in a direct tensile test, we will be faced with a poorly constructed experience, since we cannot maintain the block at the extremities. Parker et al [30] recommended testing the tensile strength of brittle blocks indirectly or to use the analytical models presented in the literature.…”
Section: Stress-strain Relationshipmentioning
confidence: 99%