Title:
Shear Strength of Reinforced Concrete T-Beams
Author(s):
Ioannis P. Zararis, Maria K. Karaveziroglou, and Prodromos D. Zararis
Publication:
Structural Journal
Volume:
103
Issue:
5
Appears on pages(s):
693-700
Keywords:
beams; reinforced concrete; shear; strength; T-beams
DOI:
10.14359/16921
Date:
9/1/2006
Abstract:
A theory for the shear resistance of reinforced concrete T-beams is presented. The theory is an extension of the theory for slender rectangular beams described in previous works. The new theory results in a simple expression showing that the shear strength of slender T-beams is a superposition of the shear strength of T-beams without shear reinforcement and the shear strength provided by the shear reinforcement. An effective width suitable for predicting the shear strength of T-beams is used in this expression. Also, a correction factor to account for the size effect is included in this expression. This expression is a generalized one, valid for T-beams as well as for rectangular beams. The derived formula is verified by comparisons to well-grounded experimental data from the literature, which have been obtained on slender T-beams with various strengths of concrete, longitudinal steel ratios, shear reinforcement ratios, shear span-depth ratios (a /d), flange width-web width ratios (b / bw), and geometrical sizes. The shear strength of slender T-beams is found to be much higher than the shear strength of the rectangular beams of their web.