TY - JOUR
T1 - Experimental and numerical study of behaviour of reinforced masonry walls with NSM CFRP strips subjected to combined loads
AU - Hernoune, Houria
AU - Benabed, Benchaa
AU - Kanellopoulos, Antonios
AU - Al-Zuhairi, Alaa Hussein
AU - Guettala, Abdelhamid
N1 - © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
PY - 2020/6/1
Y1 - 2020/6/1
N2 - Near surface mounted (NSM) carbon fibers reinforced polymer (CFRP) reinforcement is one of the techniques for reinforcing masonry structures and is considered to provide significant advantages. This paper is composed of two parts. The first part presents the experimental study of brick masonry walls reinforced with NSM CFRP strips under combined shear-compression loads. Masonry walls have been tested under vertical compression, with different bed joint orientations 90ffi and 45ffi relative to the loading direction. Different reinforcement orientations were used including vertical, horizontal, and a combination of both sides of the wall. The second part of this paper comprises a numerical analysis of unreinforced brick masonry (URM) walls using the detailed micro-modelling approach (DMM) by means of ABAQUS software. In this analysis, the non-linearity behavior of brick and mortar was simulated using the concrete damaged plasticity (CDP) constitutive laws. The results proved that the application of the NSM-CFRP strips on the masonry wall influences significantly strength, ductility, and post-peak behavior, as well as changing the failure modes. The adopted DMM model provides a good interface to predict the post peak behavior and failure mode of unreinforced brick masonry walls.
AB - Near surface mounted (NSM) carbon fibers reinforced polymer (CFRP) reinforcement is one of the techniques for reinforcing masonry structures and is considered to provide significant advantages. This paper is composed of two parts. The first part presents the experimental study of brick masonry walls reinforced with NSM CFRP strips under combined shear-compression loads. Masonry walls have been tested under vertical compression, with different bed joint orientations 90ffi and 45ffi relative to the loading direction. Different reinforcement orientations were used including vertical, horizontal, and a combination of both sides of the wall. The second part of this paper comprises a numerical analysis of unreinforced brick masonry (URM) walls using the detailed micro-modelling approach (DMM) by means of ABAQUS software. In this analysis, the non-linearity behavior of brick and mortar was simulated using the concrete damaged plasticity (CDP) constitutive laws. The results proved that the application of the NSM-CFRP strips on the masonry wall influences significantly strength, ductility, and post-peak behavior, as well as changing the failure modes. The adopted DMM model provides a good interface to predict the post peak behavior and failure mode of unreinforced brick masonry walls.
KW - Bed joint orientations
KW - Combined loads
KW - Detailed micro-modelling approach
KW - NSM CFRP strips
KW - Reinforced masonry
KW - Reinforcement orientations
UR - http://www.scopus.com/inward/record.url?scp=85087455892&partnerID=8YFLogxK
U2 - 10.3390/BUILDINGS10060103
DO - 10.3390/BUILDINGS10060103
M3 - Article
AN - SCOPUS:85087455892
VL - 10
JO - Buildings
JF - Buildings
IS - 6
M1 - 103
ER -