An analytical model for stress–strain behavior of confined concrete
By B. Binici. 2005
331 citations recorded by the source corpus.
Abstract It is well known that the strength and ductility of concrete are highly dependent on the level of confinement provided by the lateral reinforcement. The stiffness and the constitutive behavior of the confining reinforcement (elastic, elastoplastic, etc.) are the important factors affecting the behavior of concrete. In this study, a new simple confined concrete model is developed for describing the axial and lateral deformation characteristics of concrete under triaxial compression. The stress–strain relationship of confined concrete in the axial direction is defined with an elastic region followed by a nonlinear curve. The descending region of the stress–strain curve is defined using a constant failure energy criterion. The elastic limit, ultimate strength, and residual capacity of confined concrete are determined using the Leon–Pramono criterion. The lateral deformation of confined concrete is described using a function that provides a smooth transition from elastic to inelastic behavior and satisfies the zero volumetric strain condition at ultimate strength. The model estimations are compared with the results of triaxial concrete compression tests, and fiber reinforced polymer (FRP) and steel confined concrete tests reported in the literature. A good agreement was observed in terms of ultimate strength, residual strength, and axial and lateral deformation behavior. It was observed that the model can be successfully applied for FRP and steel confined concrete, removing the need to adjust parameters for different lateral reinforcement types. Finally, a parametric study was conducted to investigate the effect of the lateral reinforcement ratio, concrete strength, and compressive failure energy on the behavior of steel and FRP confined concrete.
Subfields: Building and Construction, Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/99de7938d88528269d133a4c2b9cd6d33f5f17d2
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Citations in the corpus
- Lateral Strain-to-Axial Strain Relationship of Confined Concrete (2015, methodology): “Table 3 presents the performance statistics of the proposed model, analysis-oriented models of FRP-confined concrete (i.e., Mirmiran and Shahawy 1997; Spoelstra and Monti 1999; Fam and Rizkalla 2001; Chun and Park 2002; Harries and Kharel 2002; Marques et al. 2004; Binici 2005; Albanesi et al. 2007;”
- Analysis-oriented stress–strain models for FRP–confined concrete (2007, methodology): “The model of Binici (2005) employs three separate expressions to describe the full stress-strain curve. The ascending branch is described using a linear expression fo expression. 3.4 Lateral-to-axial strain relationship The lateral-to-axial strain relationship, not available in an active-confinement”
- Application of polymer composites in civil construction : A general review (2008, background): “[174] Binici B.”
- FRP-confined concrete in circular sections: Review and assessment of stress-strain models (2013, methodology): “[41] l lateral-to-axial strain ratio or dilation ratio of concrete ls secant dilation ratio of confined-concrete ls1 secant dilation ratio of confined-concrete at f 0 c1 in model proposed by Binici [73] ls,maxmaximum secant dilation ratio of confined-concrete in model proposed by Binici [73] lsu sec”
- A constitutive model for predicting the lateral strain of confined concrete (2015, background): “A number of constitutive models for confined concrete [9,11,31–50] have been developed.”