Search results for "Concrete damaged plasticity model"

showing 3 items of 3 documents

Numerical prediction of the shear response of semi-prefabricated steel-concrete trussed beams

2016

Abstract In this study, the shear behavior of hybrid steel-trussed-concrete beams (HSTCBs) realized with prefabricated steel trusses embedded into a concrete core cast in situ, is investigated by means of Finite Element (FE) numerical simulations. HSTCBs do not behave as classical RC elements nor composite beams. Up to now, there are not specific design criteria in the building codes and the calculation of this type of beams is conducted by means of design-by-testing procedures. The knowledge of the material behavior as well as the understanding of the interaction between materials in contact is the first requirement for the definition of proper design procedures and calculation methods for…

EngineeringWork (thermodynamics)0211 other engineering and technologiesTruss020101 civil engineering02 engineering and technologyBendingConcrete damaged plasticity model0201 civil engineering021105 building & constructionGeneral Materials ScienceHybrid steel trussed-concrete beamShear behaviorVariable (mathematics)Civil and Structural EngineeringComputer simulationbusiness.industryCohesive steel-concrete interface; Concrete damaged plasticity model; Finite element model; Hybrid steel trussed-concrete beams; Shear behavior; Civil and Structural Engineering; Building and Construction; Materials Science (all)Structural engineeringBuilding and ConstructionFinite element methodShear (sheet metal)Settore ICAR/09 - Tecnica Delle CostruzioniHybrid steel trussed-concrete beamsCohesive steel-concrete interfaceMaterials Science (all)businessBeam (structure)Finite element model
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A strategy for the finite element modeling of FRP-confined concrete columns subjected to preload

2018

Abstract Compressive behavior of columns strengthened by means of an outer elastic confinement provided e.g. by fiber-reinforced polymer (FRP) jackets has become a main topic in the field of structural retrofitting. In details, the problem of the response assessment of strengthened columns is still under study. Many analytical formulations have been proposed to describe the compressive behavior of confined concrete under both monotonic and cyclic loads. However, the effect of a stress/strain level in the columns already present prior to apply the confinement has been generally neglected until now, also because of the lack of well defined strategies of modeling. In this frame, here, (1) a FE…

Materials scienceConfinement lateral pressure0211 other engineering and technologies020101 civil engineeringMonotonic function02 engineering and technologyConcrete damaged plasticity model0201 civil engineering021105 building & constructionRetrofittingWell-definedfiber reinforced polymer (FRP)SofteningCivil and Structural Engineeringbusiness.industryStructural engineeringFibre-reinforced plasticFinite-element modelingPreloadingFinite element methodConfined concretePreloadSettore ICAR/09 - Tecnica Delle CostruzioniHardening (metallurgy)ABAQUSbusinessConfinement
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Finite element modeling of the shear behavior of hybrid steel trussed concrete beams

2015

The development and calibration of a three-dimensional (3D) nonlinear Finite Element (FE) model is presented with the aim of investigating the shear behavior of steel-concrete composite beams realized with a steel truss embedded into a concrete core and named Hybrid Steel Trussed-Concrete Beams (HSTCBs). The model is calibrated on the results of a reference experimental campaign of three-point bending tests on HSTCBs realized at the Laboratory of Structures of the University of Palermo. The actual behavior at the steel-concrete interface has been introduced in the model through the implementa-tion of a cohesive constitutive relationship. Furthermore, the damaged plasticity of concrete has b…

Settore ICAR/09 - Tecnica Delle CostruzioniHybrid steel trussed-concrete beams shear behavior finite element model cohesive steel-concrete interface concrete damaged plasticity model.
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