Title: Behavior of Reinforced Fibrous Concrete Columns
Author(s): R. John Craig, J. McConnell, H. Germann, N. Dib, and F. Kashani
Publication: Symposium Paper
Appears on pages(s): 69-106
Keywords: axial loads; building codes; columns (supports); fiber reinforced concretes; metal fibers; shear properties; short columns; ties (reinforcement.
The behavior of reinforced fibrous concrete columns was observed with a testing program of 36 columns. The theory was analyzed with the help of interaction diagram load-moment, which was developed for this investigation. Previous investigation results, equations, were modified to reflect the presence of fibers in the reinforced concrete columns. Fifteen columns with modeled dimensions of 6 by 4.75 inches were tested in pure axial compression with steel fiber contents of 0%, .75%, and 1.5% by volume with tie spacings ranging from 3 to 9 inches. Twenty-one columns were analyzed and experimentally tested to examine the shear behavior of axially loaded fibrous reinforced concrete short columns under double curvature bending.