000012790 001__ 12790
000012790 005__ 20160920162646.0
000012790 04107 $$aeng
000012790 046__ $$k2016-09-05
000012790 100__ $$aAljaberi, Z.K.
000012790 24500 $$aA comparative study of flexural behavior of reinforced masonry walls strengthened with near-surface mounted FRP bars or externally bonded FRP sheets

000012790 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012790 260__ $$bTaylor and Francis Group, London, UK
000012790 506__ $$arestricted
000012790 520__ $$2eng$$aStrengthening is a common process of upgrading the capacity of structural elements to carry additional loads. Out-of-plane flexural behavior of reinforced masonry walls, strengthened with Near-Surface Mounted (NSM) Fiber Reinforced Polymer (FRP) bars or Externally Bonded (EB) FRP sheets and subjected to cyclic loading, was experimentally investigated. Twelve reinforced masonry walls were built for this study. Identical reinforced masonry walls in their unstrengthened form were used as control specimens. Five specimens strengthened using NSM and five specimens with EB were tested. These reinforced walls were strengthened using CFRP and GFRP bars which were placed near the surface (NSM). Also a single ply and a 2-ply wet laid up GFRP in addition to CFRP laminate were used as external reinforcement (EB). A constant reinforcement ratio (ρ) for mild steel was used. The walls were tested in four-point bending with an effective span of 1.12 m between the supports, and subjected to cyclic load with loading rate 1.27 mm/min. This investigation examines the effect of different parameters related to FRP type and amount, and bond pattern (stack and running). The impact of these parameters on the ductility and strength capacity of out-of-plane strengthened wall was evaluated. The force-displacement relationship of the walls and the associated strains in the reinforcement bars and FRP composite were monitored throughout the tests. Different modes of failure occurred in the strengthened reinforced walls, including a punching shear failure through the concrete block, as well as a rupture of FRP and debonding of FRP reinforcement from the masonry substrate.

000012790 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012790 653__ $$a

000012790 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012790 720__ $$aAljaberi, Z.K.$$iMyers, J.J.$$iElGawady, M.E.
000012790 8560_ $$ffischerc@itam.cas.cz
000012790 8564_ $$s1825956$$uhttps://invenio.itam.cas.cz/record/12790/files/238.pdf$$yOriginal version of the author's contribution as presented on CD, 238.pdf.
000012790 962__ $$r12552
000012790 980__ $$aPAPER