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

Authors: Kamal Alogla; Laith Sh. Rasheed

Addresses: Ministry of Education, Department of Civil Engineering, College of Engineering, University of Kerbala, Iraq ' Ministry of Education, Department of Civil Engineering, College of Engineering, University of Kerbala, Iraq

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.

Keywords: deep beams; reactive powder concrete; RPC; hybrid beams; shear strength; NSC-RPC composite specimen.

DOI: 10.1504/IJSTRUCTE.2023.134233

International Journal of Structural Engineering, 2023 Vol.13 No.3, pp.368 - 385

Received: 17 Apr 2022
Accepted: 17 Jun 2023
Published online: 13 Oct 2023 *

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