Title:
Moment-Curvature Relationships for
Concrete Beams with Plain and Deformed Steel Fibers
Author(s):
Grant T. Halvorsen and Clyde E. Kesler
Publication:
Journal Proceedings
Volume:
76
Issue:
6
Appears on pages(s):
697-706
Keywords:
beams (supports); deformation; ductility; fiber reinforced concretes; flexural strength;flexural tests; moment-curvature relationships; research.
DOI:
10.14359/6964
Date:
6/1/1979
Abstract:
Failure of steel fiber reinforced concrete beams is typically characterized by cracking of the matrix followed by pullout of the individual fibers. To compare the behavior of concrete reinforced with plain and deformed steel fibers, moment-curvature relationships were determined experimentally for flexural specimens, 4 x 6 x 64 in. (100 x 150 x 1625 mm). Two fiber contents with each of six fiber geometries were used. The results indicate that the post-cracking resistance may vary considerably, depending on the fiber ductility and the failure mode of individual fibers, as well as fiber content. Clearly, fiber reinforced concrete cannot be adequately described by strength alone.