6533b7d0fe1ef96bd125a4aa

RESEARCH PRODUCT

Effects of confinement level, cross-section shape and corner radius on the cyclic behavior of CFRCM confined concrete columns

Giuseppe MacalusoMarinella FossettiPiero Colajanni

subject

Corner radiusMaterials sciencebusiness.industryStiffnessBuilding and ConstructionStructural engineeringExperimental testsSquare (algebra)Cross section (physics)Settore ICAR/09 - Tecnica Delle CostruzioniCompressive strengthEnergy absorbingmedicineCementitious matrixGeneral Materials ScienceCarbon fiberComposite materialmedicine.symptomDuctilitybusinessCementitious matrixCyclic actionCivil and Structural EngineeringConfinement

description

Abstract The main results of an experimental research aiming to investigate the behavior of medium-size low-strength concrete columns wrapped with Carbon Fiber Reinforced Cementitious Matrix (CFRCM) under monotonic and cyclic compressive axial loads are presented. Thirty columns with circular, square and rectangular cross-sections were tested under monotonic and cyclic axial loads to investigate the effect of the confinement level, the cross-section shape and the corner radius on the stiffness, strength, and ductility of CFRCM confined concrete columns under cyclic loads. The results prove that CFRCM confining jackets provide substantial gain in compressive strength, deformability and absorbed energy.

10.1016/j.conbuildmat.2014.01.035http://hdl.handle.net/10447/101201