Observed behavior of rectangular RC columns confined with CFRP jackets and anchors,

Abstract

Twelve rectangular reinforced concrete columns were constructed to study the behavior of a proposed confinement system. The confinement system is composed of CFRP wraps and CFRP anchors installed with an intercalated disposition. Eight of these columns are reinforced with the proposed system, while four are left without CFRP confinement to evaluate the increments on the axial stress-strain properties due to the CFRP confinement. The specimens were instrumented to capture average axial deformations, total applied load, CFRP deformations with strain gages and with a digital image correlation (DIC) technique.