6533b837fe1ef96bd12a29af
RESEARCH PRODUCT
Strength and strain enhancements of concrete columns confined with FRP sheets
Maurizio PapiaN. MiragliaGiuseppe Campionesubject
Stress-concentrationMaterials scienceStrain (chemistry)business.industryMechanical EngineeringMaximum compressive strengthRectangular cross-sectionBuilding and ConstructionSTRIPSStructural engineeringFibre-reinforced plasticOverburden pressurelaw.inventionSettore ICAR/09 - Tecnica Delle CostruzioniMechanics of MaterialslawBearing capacityUltimate strainComposite materialReinforcementbusinessConfinementFRPCivil and Structural EngineeringStress concentrationdescription
The compressive behavior up to failure of short concrete members reinforced with fiber reinforced plastic (FRP) is investigated. Rectangular cross-sections are analysed by means of a simplified elastic model, able also to explain stress-concentration. The model allows one to evaluate the equivalent uniform confining pressure in ultimate conditions referred to the effective confined cross-section and to the effective stresses in FRP along the sides of section; consequently, it makes it possible to determine ultimate strain and the related bearing capacity of the confined member corresponding to FRP failure. The effect of local reinforcements constitute by single strips applied at corners before the continuous wrapping and the effect of round corners are also considered. Analytical results are compared to experimental values available in the literature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-12-25 | Structural Engineering and Mechanics |