Shear strength behavior of high strength fibrous reinforced concrete deep beams (HSFRCDB)‎ without stirrups

الملخص EN

In this investigation the shear strength behavior of high strength fibrous reinforced concrete deep beams(HSFRCDB) without shear reinforcement have been studied.

For this purpose eight reinforced high strength concrete deep beams were tested to study the effect of the parameters ( shear span to depth ratio (a/d) and volume fraction of steel fibers (Vf)).

The analysis of test results shows that the ultimate shear stress decreases with increasing a/d, while it increases with increasing the amount of steel fibers.

Based on data from literature, an equation was proposed for predicting the ultimate shear stress of reinforced concrete deep beams without shear reinforcement.

The proposed equation was compared with codes of practice(ACI, BS, Canadian and New Zealand) and other investigators , the codes and the equations proposed by researchers underestimate the shear strength of reinforced concrete deep beams.