Shear strength and Characterization of Reinforced Concrete Deep Beams -A Review

Abstract

Reinforced concrete deep beams are structural elements that primarily pass-heavy gravity loads to their supports by shearing action. High shear strength is a significant feature of deep beams. This is due to the tied-arch internal a mechanism which transmits the load directly via concrete compressive struts to the supports. Various researchers and codes of practice that vary in principle have suggested different meanings for RC deep beams. Several researchers have also developed different shear strength prediction models and codes for the calculation of the shear strength of deep beams by analytical models and comprehensive services for exams. There seems to be, however, no consensus on which description properly classifies what a deep beam is and which paradigm creates a great result that similar to experimental values, the value of shear strength of beams. The research compared the concepts and evaluated deep beam shear capacity models based on data from 210 deep beams according to different code provisions acquired in literature. The ACI-318 code description concept was found to provide the most practical characterization of a deep beam, while its shear strength model, based on the method of the strut-and-tie model, offers the best estimate for a deep beam’s shear strength.