Experimental Study on Flexural Response of FRP Strengthened Masonry Beams

  • CE Mbanusi
  • GC Ezeokpube
Keywords: Masonry beams, Flexure, Tension- softening, Tensile-strain-hardening, ECC, Ductility, Strengthened, Carbon fibre laminates

Abstract

This paper presents experimental study on flexural response of strengthened masonry beams using Engineered Cementitious Composites (ECC), strips and carbon fibre laminates. Five sets of eleven samples were tested for flexure in four-point loading set up. Two test samples made up a set of control beams. Set two consists of three test samples strengthened using ECC strips of two centimetres thick. Four test samples strengthened using ECC strips of three centimetres thick constituted the third set. Sets four and five comprise of one test sample each; termed [i] un-plastered, strengthened using carbon fibre laminates, and [ii] plastered, strengthened, using fibre laminates of carbon respectively. In terms of bending or flexural strength, deflection ductility and energy ductility parameters, samples strengthened using ECC strips and carbon fibre laminates exhibited higher values than there were for reference beams. Increased thickness of ECC strengthening strips from 2cm to 3cm resulted in increase in values of deflection ductility and energy ductility by 10.70% and 22.23% respectively.

http://dx.doi.org/10.4314/njt.v34i1.11

Published
2014-12-29
Section
Building, Civil & Geotechical Engineering

Journal Identifiers


eISSN: 2467-8821
print ISSN: 0331-8443