TY  - JOUR
T1  - Evaluation of ACI Shear Provisions for Concrete Beams Without
Web Reinforcement Using Stepwise Regression
AU - A. Shallal, Muhaned 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 11
SP  - 3965
EP  - 3978
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.3965.3978
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.3965.3978
KW  - Shear strength
KW  -without web reinforcement
KW  -regression
KW  -stepwise
KW  -span to depth ratio
KW  -ratio
KW  -ACI
AB  - Shear strength of concrete is one of the most critical design requirements in reinforced concrete
design. Because of this special requirement the reinforced concrete researchers are continuously review the
depended shear design formulas to predict better formulas with a high degree of confidence. In this research,
based on an experimental data base from the literature with a total number of 175 beam specimens and using
the stepwise regression a testing model is predicted to evaluate the ACI shear provisions for beams without
web reinforcement. The squared coefficient of correlation R<sup>2</sup> of the predicted model is 0.934. The results show
that the predicted model is adequate as a testing or an evaluation formula. The ACI provisions are found to be
conservative for the full range of span to depth fc(a/d) &rho;<sub>w
</sub>. While for width b and depth d, the ACI can be considered as conservative up to specific points and unsafe beyond specific points.
ER  -