Search results for " rebar"

showing 3 items of 3 documents

Finite element modelling of slipage between FRP rebar and concrete in pull-out test

2014

The paper presents numerical results of direct pull-out test of glass fiber-reinforced polymer (GFRP) rebars embedded in concrete. Rebars of three different cross-sections are considered: circular without longitudinal ribs and with two and four ribs. The design analyses of the rebar configurations embedded in concrete are investigated by the 3D finite element method (FEM), which takes into account the non-linearity using ANSYS software. The results of the numerical model with two ribs were compared with the experimental results. Then, the effect of different rebar geometries to the load-slip pull-out curves was studied. It is concluded that the influence of rib height and width on the pull-…

Engineeringlawbusiness.industryglass fiber-reinforced polymer (GFRP) rebar finite element modelling pull-out test load-slip behaviour ANSYSRebarAnsys softwareStructural engineeringComposite materialFibre-reinforced plasticbusinessFinite element methodlaw.inventionThe International Scientific Conference „Innovative Materials, Structures and Technologies"
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Simplified analytical model for flexural response of external R.C. frames with smooth rebars

2018

In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel …

ColumnMechanical EngineeringSmooth rebarShearBeamBuilding and ConstructionBeam; Column; Flexure; Joint; Shear; Smooth rebars; Civil and Structural Engineering; Building and Construction; Mechanics of Materials; Mechanical EngineeringSettore ICAR/09 - Tecnica Delle CostruzioniJointSmooth rebarsMechanics of MaterialsMechanics of MaterialFlexureCivil and Structural Engineering
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Analytical Prediction of the Flexural Response of External RC Joints with Smooth Rebars

2018

Nel presente lavoro viene presentato un modello analitico in forma chiusa in grado di riprodurre la risposta flessionale monotonica di nodi esterni trave-colonna in c.a. con armature lisce. La colonna viene sottoposta a carico verti-cale costante e la trave ad una forza laterale crescente monotonicamente applicata all’estremità. Il modello si basa sul comportamen-to flessionale di trave e colonna adottando un modello di cerniera plasticità concentrata che include lo scorrimento delle armature della trave. Si assume un dominio sforzo normale-momento bilineare semplificato da cui viene derivato il momento ultimo associato alla forza assiale di progetto. Per il nodo viene adottato un modello c…

Materials sciencebusiness.industryflexureHingeVertical loadBilinear interpolationcolumnMonotonic functionStructural engineeringshearPlasticitySettore ICAR/09 - Tecnica Delle CostruzioniBeam; Column; Flexure; Joint; Shear; Smooth rebars; Civil and Structural EngineeringFlexural strengthjoint; beam; column; shear; flexure; smooth rebarssmooth rebarsjointbeamSlippageAxial forcebusinessCivil and Structural Engineering
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