Title: Influence of Axial Tension on the Shear Capacity of Reinforced Concrete Members

Author(s): Shrinivas B. Bhide and Michael P. Collins

Publication: Structural Journal

Volume: 86

Issue: 5

Appears on pages(s): 570-581

Keywords: aggregate interlock; axial loads; cracking (fracturing); crack width and spacing; reinforced concrete; restraints; shear strength; stresses; tension; tests; Structural Research

DOI: 10.14359/3013

Date: 9/1/1989

Abstract:
The modified compression field theory is used to predict the response of reinforced concrete members subjected to combined shear and axial tension. It is predicted that even members containing only longitudinal reinforcement have considerable postcracking shear capacity provided that the reinforcement is capable of preventing excessive widening of the cracks. Tests of 24 such specimens are used to verify these predictions. Based on the analytical study, the experimental program, and a review of previous experimental studies, it is concluded that the current ACI design procedures for members in combined shear and tension are excessively conservative.