Search results for "Hybrid steel trussed–concrete beam"

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Stress transfer mechanism investigation in hybrid steel trussed-concrete beams by push-out tests

2014

Abstract Results of push-out tests carried out on Hybrid Steel Trussed–Concrete Beams (HSTCBs) before and after the concrete casting are presented and interpreted. Firstly, in order to check the ability of weldings before casting, tensile tests were performed on specimens reproducing different types of welded joints. Simplified design formulae were used to predict their ultimate strength. Secondly, results obtained by push-out tests on specimen representative of the beam before and after the concrete casting are presented and discussed. Finally, simplified analytical models proposed by the current European building code were adapted to the specific typology to roughly predict the ultimate s…

Stress transferring mechanismEngineeringConcrete beamsWelded jointsWeldinglaw.inventionStress (mechanics)lawHybrid steel trussed–concrete beamsTransfer mechanismUltimate tensile strengthHybrid steel trussed–concrete beamCivil and Structural Engineeringbusiness.industryMetals and AlloysAnalytical modellingBuilding and ConstructionStructural engineeringHybrid steel trussed–concrete beams; Welded joints; Push-out tests; Stress transferring mechanism; Analytical modellingPush-out testSettore ICAR/09 - Tecnica Delle CostruzioniPush-out testsMechanics of MaterialsBuilding codeCasting (metalworking)Welded jointbusinessBeam (structure)
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FEM analysis of push-out test response of Hybrid Steel Trussed Concrete Beams (HSTCBs)

2015

Abstract Aiming to investigate the steel truss–concrete stress transfer mechanism in Hybrid Steel Trussed–Concrete Beams (HSTCBs), a three-dimensional (3D) nonlinear Finite Element (FE) model is developed. The constitutive relationship of the steel composing the plates and the rebars 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. Two main failure mechanisms are considered, namely the tensile cracking and the compressive crushing. In order to accurately grasp the complicate dowel and bond phenomena arising at the steel–concrete interface, a 3D solid…

Stress transferring mechanismMaterials scienceShear connectionTrussDowelPlasticityExperimental push-out testsStress (mechanics)BrittlenessHybrid steel trussed–concrete beamsMechanics of MaterialHybrid steel trussed-concrete beamExperimental push-out tests; Finite Element model; Hybrid steel trussed-concrete beams; Shear connection; Stress transferring mechanism; Building and Construction; Civil and Structural Engineering; Mechanics of Materials; 2506Civil and Structural EngineeringHybrid steel trussed–concrete beams Finite Element model Experimental push-out tests Stress transferring mechanism Shear connectionbusiness.industryMetals and AlloysExperimental push-out testBuilding and ConstructionStructural engineeringFinite element methodSettore ICAR/09 - Tecnica Delle CostruzioniCrackingHybrid steel trussed-concrete beamsMechanics of Materials2506Finite Element modelbusinessBeam (structure)Journal of Constructional Steel Research
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