Title:
Shear-Friction Tests on Reinforced Concrete Panels
Author(s):
Frank J. Vecchio and Mauricio Nieto
Publication:
Structural Journal
Volume:
88
Issue:
3
Appears on pages(s):
371-379
Keywords:
concrete panels; deformation; finite element method; friction; reinforced concrete; shear tests; strength; structural design; Design
DOI:
10.14359/3132
Date:
5/1/1991
Abstract:
An experimental investigation is described in which reinforced concrete panels were tested under conditions approximating shear-friction behavior. A principal shear plant region provided in each panel was uniaxially reinforced and transversely precracked. Uniform edge loads applied to the panels were of varying ratios of shear to normal stress. The load-resisting mechanism typically observed to develop across the shear plane was one involving strut action. The influence of the preexisting transverse cracks was minimal, while that of externally applied normal stresses was substantial. The modified compression field theory, incorporated into a nonlinear finite element analysis procedure, was found to predict accurately strength and load-deformation response under these aberrant conditions. Design code formulations, based on shear-friction concepts, gave from highly conservative to unconservative estimates of strength.