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Title: Influence of Textile Reinforcement on Masonry Walls Subjected to In-Plane Loads

Author(s): Nadia Tarifa, Zakaria Ilyes Djamai, Frederic Duprat, and Carole Soula

Publication: Structural Journal

Volume: 120

Issue: 2

Appears on pages(s): 191-204

Keywords: masonry; reinforcement; shear loads; textile-reinforced mortar (TRM)

DOI: 10.14359/51737143

Date: 3/1/2023

Masonry walls are particularly vulnerable to large shear forces during earthquakes because of their low tensile strength and the heterogeneity of their material. In this paper, experimental results are presented for four masonry walls reinforced with textile-reinforced mortars (TRMs) and one unreinforced wall (URW) tested under quasi-static in-plane loading. These full-scale masonry walls were tested in the LMDC laboratory at the National Institute of Applied Sciences (INSA) Toulouse. Clay bricks and lime mortar were used in a traditional construction technique to build the walls. The four specimens were tested and damaged until failure. One of them was strengthened along its diagonals and the other three over their entire surfaces. Displacements and crack patterns were monitored using a network of sensors and a digital image correlation system. A comparison of the experimental results determined whether TRM could efficiently reinforce masonry walls and increase their loadbearing capacity. An increase in peak load and cumulative energy, respectively, was hence observed during the tests (140 kN and 3176 J for an unreinforced wall, and 343 kN and 13,303 J for one of the reinforced walls). These results provide valuable information about masonry wall strengthening for architects, structural engineers, and the scientific community.