Akademik Veri Yönetim Sistemi
Journal of Building Engineering, cilt.120, 2026 (SCI-Expanded, Scopus)
In regions with predominantly older building stock, post-earthquake investigations have shown that deficiencies in reinforced concrete (RC) beam-column joints are a major cause of structural failure, often leading to the formation of plastic hinges and collapse under seismic loads. The February 6 Türkiye Earthquakes highlighted the vulnerability of such joints. This study investigates the enhancement of seismic performance in deficient RC beam-column joints using Textile Reinforced Mortar (TRM), a cost-effective, easy-to-apply, and environmentally friendly composite material. Eight cyclic loading tests were conducted, including two reference specimens and six strengthened specimens with TRM applied in varying widths and spacing. Key experimental parameters—including cross-sectional dimensions, reinforcement details, concrete strength, and TRM application—were controlled. Nonlinear finite element analyses were performed in ABAQUS to replicate experimental conditions and compare outcomes. TRM-strengthened joints exhibited substantial improvements in load capacity, ductility, and energy dissipation, fulfilling over 95% of the performance requirements of the reference specimen designed according to modern seismic codes. Moreover, strip width and spacing influenced load distribution and the formation of plastic hinges, emphasizing the importance of detailing in TRM applications. Overall, TRM provides an effective solution for mitigating shear deficiencies, enhancing ductile behavior, and improving the seismic resilience of existing RC structures.