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Finite element model for bolted shear connectors in concrete-filled steel tubular columns
Highlights Bolted shear connectors used in concrete-filled composite columns was investigated. A finite element model was calibrated using Concrete Damage Plasticity. Different concrete stress-strain relationship was tested. The numerical model was validated with experimental results.
Abstract This research presents a study on the numerical simulation of the structural behavior of bolted shear connectors used as force transfer device in concrete-filled composite columns. The numerical model was developed in ABAQUS software, using the constitutive model named Concrete Damaged Plasticity. In the study, the influence of different concrete stress-strain relationships on tensile and compressive strengths was analyzed, as well as the influence of the use of damage variables. Three different stress-strain relationships on concrete compressive strength were tested, and another three on concrete tensile strength, distinguished by the crack opening displacement. The obtained results were calibrated with the experimental results of four experimental models, and, next, the proposed calibration was compared with twelve other experimental results. Finally, the proposed parameters showed to be suitable to represent the structural behavior of bolted shear connectors applied in force transfer in concrete-filled composite columns.
Finite element model for bolted shear connectors in concrete-filled steel tubular columns
Highlights Bolted shear connectors used in concrete-filled composite columns was investigated. A finite element model was calibrated using Concrete Damage Plasticity. Different concrete stress-strain relationship was tested. The numerical model was validated with experimental results.
Abstract This research presents a study on the numerical simulation of the structural behavior of bolted shear connectors used as force transfer device in concrete-filled composite columns. The numerical model was developed in ABAQUS software, using the constitutive model named Concrete Damaged Plasticity. In the study, the influence of different concrete stress-strain relationships on tensile and compressive strengths was analyzed, as well as the influence of the use of damage variables. Three different stress-strain relationships on concrete compressive strength were tested, and another three on concrete tensile strength, distinguished by the crack opening displacement. The obtained results were calibrated with the experimental results of four experimental models, and, next, the proposed calibration was compared with twelve other experimental results. Finally, the proposed parameters showed to be suitable to represent the structural behavior of bolted shear connectors applied in force transfer in concrete-filled composite columns.
Finite element model for bolted shear connectors in concrete-filled steel tubular columns
Santos, Lucas Ribeiro dos (Autor:in) / Cardoso, Hermano de Sousa (Autor:in) / Caldas, Rodrigo Barreto (Autor:in) / Grilo, Lucas Figueiredo (Autor:in)
Engineering Structures ; 203
26.10.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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