Strength of Vertical Joints With Steel Fiber Reinforced Concrete in Large Panel Structures

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Title: Strength of Vertical Joints With Steel Fiber Reinforced Concrete in Large Panel Structures

Author(s): H. M. S. Abdul-Wahab

Publication: Structural Journal

Volume: 89

Issue: 4

Appears on pages(s): 367-374

Keywords: concrete panels; joints (junctions); metal fibers; shear strength; reinforced concrete; reinforcing steels; fibers; Structural Research

Date: 7/1/1992

Abstract:
Describes an experimental investigation carried out to assess the effect of steel fiber reinforced concrete on the shear resistance of vertical joints between large reinforced concrete panels. Twelve full-sized specimens of plane, castellated, or grooved joints containing varying amounts of fibers were tested to failure under pure shear. Results obtained indicated a considerable improvement in the ultimate shear capacity of the joints due to the addition of fibers. The experimental results and predicted values are compared using a modified form of the shear-friction methods of the ACI Building Code and BS 8110, both with good agreement. A theoretical model is also proposed, which takes into account the combined effect of the dowel action of reinforcement and the shear resistance due to fibers, giving safe design values.