Title: Closed-Form Solution for Shear Strength of Steel Fiber- Reinforced Concrete Beams

Author(s): Harvinder Singh

Publication: Structural Journal

Volume: 117

Issue: 3

Appears on pages(s): 261-269

Keywords: analytical model; beam; concrete structures; design methods and aids; dowel action; shear

DOI: 10.14359/51721373

Date: 5/1/2020

Abstract:
Shear capacity is an important strength parameter required in the design of concrete flexural members; its reliable estimation is one of the important requirements of the design process. However, unlike other mechanical properties of concrete, the shear capacity of concrete beams is a complex phenomenon. The inclusion of steel fibers in concrete further adds complexity to the shear capacity determination, albeit with an enhancement of the shear capacity. In the past, efforts have been made to model the shear response of steel fiber-reinforced concrete (SFRC) members, mostly in the form of empirical relations derived from the results of experimental studies. A theoretical formulation is presented herein to predict the shear capacity of the SFRC rectangular beams without web reinforcement. Its efficacy is also checked using results computed from available design guidelines, empirical relations, and experimental test data. A good correlation is found between the predicted and the available test results.