Title: Behavior of Columns Constructed with Fibers and Self-Consolidating Concrete

Author(s): Hassan Aoude, William D. Cook, and Denis Mitchell

Publication: Structural Journal

Volume: 106

Issue: 3

Appears on pages(s): 349-357

Keywords: bar buckling; columns; confinement; cover spalling; ductility; self-consolidating concrete; steel fibers.

DOI: 10.14359/56499

Date: 5/1/2009

Abstract:
A series of 13 full-scale axial compression tests was conducted on reinforced concrete (RC) and steel fiber-reinforced concrete (SFRC) columns. The specimens, which were detailed with varying amounts of transverse reinforcement, were cast using self-consolidating concrete (SCC) that contained various quantities of fibers. The results demonstrate that the addition of fibers leads to improved load-carrying capacity and post-peak response. Furthermore, the addition of fibers greatly delays cover spalling. The results also show that the addition of steel fibers can partially substitute for the confinement reinforcement in columns, thereby improving constructibility while achieving significant confinement.