Effect of the location of reactive powder concrete layer on the behaviour of hybrid deep beams

Abstract

In order to investigate the location effect of reactive powder concrete (RPC) layer on the structural behaviour of the hybrid deep beam, 12 reinforced concrete, simply supported deep beams were designed and tested under two-point loading. The beams were divided into three groups A, B and C. The results showed that the hybrid deep beams with RPC layer increases initial cracking and ultimate loads. The ultimate load in hybrid beams with RPC in the tension region was greater than the ultimate load in hybrid deep beams with RPC in the compression region. The first cracking and ultimate loads in the beams has increased with the decrease in shear span/overall depth (a/h) ratio. Load-deflection curve become stiffer as the a/h ratio has decreased.