Title: Shear in Discontinuity Regions

Author(s): Gary J. Klein, Nazanin Rezaei, David Garber, and A. Koray Tureyen

Publication: Concrete International

Volume: 41

Issue: 5

Appears on pages(s): 36-41

Keywords: strength, D-region, strut-and-tie, beam

DOI:

Date: 5/1/2019

Abstract:
The article describes the rationale for changes in ACI 318-19 that will address concerns and inconsistencies related to shear strength of deep beams and D-regions while maintaining the essential characteristics of design according to the strut-and-tie method. The changes in the Code relate to the strength of struts and requirements for minimum distributed reinforcement. Analyses of data from previous studies and a recent test program were used to evaluate the influence of diagonal tension on the strength of struts.