Semnan University Press Journal of Rehabilitation in Civil Engineering 2345-4415 14 3 2026 08 01 In-Plane Static Cyclic Response of Solid Brick Masonry Walls Repaired and Retrofitted with TRM 10545 10.22075/jrce.2025.2309 EN Hamid Assarzadeh Mahani Shahid Rajaee Teacher Training University Mohammad Yekrangnia Shahid Rajaee Teacher Training University Mussa Mahmoudi Shahid Rajaee Teacher Training University Journal Article 2025 05 09 This study demonstrates that Textile-Reinforced Mortar (TRM) systems offer a practical, cost-effective, and sustainable solution for improving the seismic safety of unreinforced masonry (URM) walls, both for post-earthquake repair and preventive retrofitting. TRM significantly enhances load-bearing capacity, ductility, and energy dissipation, addressing the urgent need for resilient and compatible strengthening techniques in earthquake-prone areas.<br />Experimental results reveal that TRM reinforcement increases in-plane load-bearing capacity by 180% in repaired walls and up to 230% in retrofitted walls compared to unreinforced specimens. Displacement capacity under cyclic loading improves by 35% for repaired and 20% for retrofitted walls, while ductility, shear strength, and energy dissipation improve by factors of up to 5.0, 4.8, and 1.1, respectively. Digital image correlation (DIC) and finite element modeling confirm a shift in failure mode from shear to flexure-dominated mechanisms, resulting in more uniform crack distribution and reduced local damage concentration. Comparison with theoretical models such as ACI 549.4R-20 and Eurocode 8 validates the reliability of the methods used. <br />These findings provide engineers and practitioners with a robust, evidence-based framework to select and design TRM interventions that enhance the seismic resilience of both existing and new masonry structures, especially in high seismic risk regions. https://civiljournal.semnan.ac.ir/article_10545_639ac91832f4fadc504db3e126f28b36.pdf