Search results for "shear and flexure"

showing 3 items of 3 documents

Experimental Tests and FEM Model for SFRC Beams under Flexural and Shear Loads

2008

The complete load-vs-displacement curves obtained by four-point-bending tests on Steel Fiber Reinforced Concrete (SFRC) beams are predicted by using a nonlinear finite element code based on the Modified Compression Field Theory (MCFT) and the Disturbed Stress Field Model (DSFM) suitably adapted for SFRC elements. The effect of fibers on the shear-flexure response is taken into account, mainly incorporating tensile stress-strain analytical relationship for SFRC. The numerical results show the effectiveness of the model for prediction of the behavior of the tested specimens reinforced with light amount of stirrups or with fibers only. © 2008 American Institute of Physics.

Modified Compression Field TheoryMaterials scienceSFRC beamsbusiness.industryShearStructural engineeringFiber-reinforced concreteNonlinear finite element analysisFinite element methodlaw.inventionStress fieldfiber-reinforced concretePhysics and Astronomy (all)Settore ICAR/09 - Tecnica Delle Costruzionishear and flexureShear; SFRC beamsFlexural strengthShear (geology)lawExperimental testUltimate tensile strengthComposite materialbusinessFEM analysiAIP Conference Proceedings
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Shear-flexure interaction of RC elements strengthened with FRP sheets

2005

An approximate physical model for evaluation of the M-V interaction resistance domains for concrete elements strengthened with FRP sheets is presented. The reliability of the model in predicting flexureshear capacity is verified by a comparison with the results of several experimental tests.

Settore ICAR/09 - Tecnica Delle CostruzioniReinforced Concrete beamsFiber reinforced polymers (FRP)RC elementShear-flexure interactionExperimental testFRP sheetFiber reinforced polymers (FRP); Shear and flexure interaction; Concrete stress-field; Reinforced Concrete beamsShear and flexure interactionConcrete stress-fieldConcrete elementPhysical model
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Design procedure for prestressed concrete beams

2014

Abstract. The theoretical basis and the main results of a design procedure, which attempts to provide the optimal layout of ordinary reinforcement in prestressed concrete beams, subjected to bending moment and shear force are presented. The difficulties encountered in simulating the actual behaviour of prestressed concrete beam in presence of coupled forces bending moment - shear force are discussed; particular emphasis is put on plastic models and stress fields approaches. A unified model for reinforced and prestressed concrete beams under axial force - bending moment - shear force interaction is provided. This analytical model is validated against both experimental results collected in li…

T-beamMaterials scienceprestressed concretebusiness.industrydesignShear forceComputational MechanicsStructural engineeringshear; shear and flexure interaction; prestressed concrete; design; plasticityshearPlasticityPhysics::Classical Physicsshear flexure prestressed concrete design plasticitylaw.inventionSettore ICAR/09 - Tecnica Delle CostruzioniPrestressed concreteShear (geology)lawplasticityshear and flexure interactionBending momentShear and moment diagrambusinessBeam (structure)
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