Search results for "Stress transfer mechanism"

showing 2 items of 2 documents

Analytical prediction of the shear connection capacity in composite steel–concrete trussed beams

2016

Steel–concrete trussed composite beams are a particular types of composite girders constituted by a steel truss embedded in a concrete core. The truss is typically composed by a steel plate or a precast concrete slab working as bottom chord while coupled rebars are generally used to form the upper chord. Moreover, a system of ribbed or smooth steel rebars welded to the plate and forming the diagonals of the truss, works as web reinforcement. In the present study, the attention is focused on the evaluation of the shear resistance of the connection between bottom steel plate (the bottom chord) and concrete core through the diagonal bars of the truss developing a mechanical model able to accou…

Materials scienceShear connection0211 other engineering and technologiesTruss020101 civil engineeringDowel02 engineering and technologySteel bar0201 civil engineeringDowels; Finite element model; Headed studs; Hybrid steel trussed-concrete beams; Push-out tests; Shear connection; Stress transfer mechanism; Theoretical model; Civil and Structural Engineering; Building and Construction; Materials Science (all); Mechanics of MaterialsGirderPrecast concrete021105 building & constructionGeneral Materials ScienceHybrid steel trussed-concrete beamTheoretical modelComposite materialCivil and Structural EngineeringHybrid steel trussed-concrete beams Shear connection Dowels Headed studs Push-out tests Stress transfer mechanism Theoretical model Finite element modelbusiness.industryBuilding and ConstructionStructural engineeringStrength of materialsPush-out testHeaded studSettore ICAR/09 - Tecnica Delle CostruzioniPush-out testsHybrid steel trussed-concrete beamsMechanics of MaterialsHeaded studsStress transfer mechanismPlastic hingeSlabMaterials Science (all)businessDowelsBeam (structure)Finite element modelMaterials and Structures
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Assessment of push-out test response of hybrid steel trussed-concrete beams by FE model

2013

Aiming to investigate the truss-concrete stress transfer mechanism in Hybrid Steel Trussed-Concrete Beams (HSTCBs), a three-dimensional nonlinear FE model is developed. The constitutive laws of the steel composing the plates and the bars is modeled by means of a quadri-linear law, while the concrete behavior is defined by means of a Concrete Damaged Plasticity (CDP) model, suitable for modeling concrete and brittle materials. The CDP model uses the concept of isotropic damaged elasticity in combination with isotropic tensile and compressive plasticity and is able to properly account for the concrete confinement effect. Two main failure mechanisms are considered, namely the tensile cracking …

Settore ICAR/09 - Tecnica Delle CostruzioniFE modelshear strenghthybrid steel trussed-concrete beams; experimental push-out tests; FE model; stress transfer mechanism; shear strenghthybrid steel trussed-concrete beams experimental push-out tests FE model stress transfer mechanism shear strenghthybrid steel trussed-concrete beamsexperimental push-out testsstress transfer mechanism
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