Volume 22, Issue 58, July - December, 2025

Shear strength prediction of hybrid fiber-reinforced concrete deep beams

Kulkarni SK^1♦, Halkude SA²

¹Assistant Professor, Civil Engg. Dept., Walchand Institute of Technology, Solapur, India
²Professor, Civil Engg. Dept., Walchand Institute of Technology, Solapur, India

^♦Corresponding Author
Kulkarni SK, Assistant Professor, Civil Engg. Dept., Walchand Institute of Technology, Solapur, India

ABSTRACT

The present study aims at developing mathematical equations for predicting the shear strength of Hybrid Fibre Reinforced Concrete (HFRC) deep beams. Parameters considered include split tensile strength, concrete shear strength, fibre factor, and the shear span-to-depth ratio (a/d) of deep beams. The developed equations are useful for hybrid fibre combinations, particularly steel and polypropylene fibres in concrete. Validation with experimental data and past reported results shows good accuracy in prediction, with shear strength ratios close to unity. The proposed equations provide structural engineers with reliable, cost-effective tools for safe and efficient shear strength prediction in HFRC deep beams.

Keywords: Deep beams; fibrillated polypropylene fiber; hooked end steel fiber; hybrid fiber reinforced concrete; shear strength

Indian Journal of Engineering, 2025, 22(58), e13ije1706

PDF

DOI: https://doi.org/10.54905/disssi.v22i58.e13ije1706

Published: 05 November 2025