Title:
Fiber Reinforced Concrete Beams With Circular Section in Torsion
Author(s):
I. A. Tegos
Publication:
Structural Journal
Volume:
86
Issue:
4
Appears on pages(s):
473-482
Keywords:
beams (supports); composite materials; concretes; strength; cracking (fracturing); fiber reinforced concretes; metal fibers; tests; torsion; Structural Research
DOI:
10.14359/2977
Date:
7/1/1989
Abstract:
An experimental investigation carried out to assess the effect of incorporating steel fibers on the torsional behavior of beams with circular cross sections is reported. The principal variables of the testing program were: (a) the amount (percent by volume) of steel fibers, (b) the aspect ratio of steel fibers, and (c) the composition of concrete mix. Eighty (forty pairs) 250 mm diameter specimens were tested. The testing program also served to help develop and verify an ultimate strength model to predict the torsional strength of concrete reinforced with short discontinuous straight steel fibers randomly oriented and uniformly dispersed in a concrete matrix.