The compressive behaviour of short concrete members having elliptical cross-sections and confined with single steel hoops is investigated. A simplified model for compressed concrete members with elliptical cross-sections able to determine the maximum compressive strength of confined concrete is proposed. Based on equilibrium consideration the confining pressures due to steel hoops, referring to a fictitious reduced area of the confined core, were determined. Therefore, the stress–train curves of confined concrete are generated by using compatibility conditions and referring to a fictitious equivalent compressed cylinder. Finally analytical results are compared with experimental values available in the literature showing good agreement.
Compressive behaviour of concrete elliptical columns confined by single hoops
FOSSETTI, MARINELLA
2007-01-01
Abstract
The compressive behaviour of short concrete members having elliptical cross-sections and confined with single steel hoops is investigated. A simplified model for compressed concrete members with elliptical cross-sections able to determine the maximum compressive strength of confined concrete is proposed. Based on equilibrium consideration the confining pressures due to steel hoops, referring to a fictitious reduced area of the confined core, were determined. Therefore, the stress–train curves of confined concrete are generated by using compatibility conditions and referring to a fictitious equivalent compressed cylinder. Finally analytical results are compared with experimental values available in the literature showing good agreement.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
