Title:
Proposed Changes in Shear Provisions
for Reinforced and Prestressed
Concrete Beams*
Author(s):
James G. MacGregor and John M. Hanson
Publication:
Journal Proceedings
Volume:
66
Issue:
4
Appears on pages(s):
276-288
Keywords:
axial loads; beams (supports) ; diagonaI tension; prestressed concrete; reinforced concrete;shear strength; structural analysis; structural design; web reinforcement.
DOI:
10.14359/7360
Date:
4/1/1969
Abstract:
Major additions and changes in the design provisions for shear and diagonal tension, proposed for incorporation in the revised (1970) ACI Building Code, are presented. To serve as background, the basic assumptions of the shear design provisions of the ACI Building Code (ACI 318-63) are reviewed. The proposals include a minimum web reinforcement provision, a revised design procedure for reinforced concrete beams under axial tension and axial compression, and a simplified alternate design procedure for prestressed concrete beams. Several design illustrations which use this alternate procedure for prestressed concrete beams are included.