Tekstil donatılı harç (TDH) ile güçlendirilmiş yığma binaların doğrusal olmayan sismik değerlendirmesi: iki örnek yapı

Öz

Bu çalışma, yığma binaların deprem davranışını doğrusal olmayan sayısal yöntemlerle incelemekte ve Tekstil Donatılı Harç (TDH) ile güçlendirilmiş yapılarla karşılaştırmalı bir analiz sunmaktadır. Sayısal modelleme yaklaşımı, öncelikle yığma duvar numuneleri üzerinde yapılan deneysel verilerle karşılaştırılarak doğrulanmış ve tepe yükü, yer değiştirme kapasitesi ve hasar dağılımı gibi doğrusal olmayan yanıt özelliklerini tutarlı bir şekilde yansıttığı gösterilmiştir. Ardından, farklı yapısal konfigürasyonlara sahip iki yığma bina üzerinde çok yönlü deprem kayıtları kullanılarak tam ölçekli doğrusal olmayan dinamik analizler gerçekleştirilmiştir. Bulgular, TDH güçlendirmesinin deplasman taleplerini azaltarak ve hasar yayılımını sınırlayarak sismik performansı önemli ölçüde artırdığını ortaya koymuştur. Ancak, güçlendirme etkinliğinin uygulama detayına bağlı olduğu görülmüştür: Sadece dış cephelere uygulanan TDH sınırlı bir iyileştirme sağlarken, hem iç yüzeylere hem de taşıyıcı ara duvarlara uygulanan TDH, yapısal göçmeyi birçok durumda önlemiş ve deplasman oranlarını kabul edilebilir performans sınırları içinde tutmuştur. Bu bulgular, yığma yapıların sismik dayanımını artırmak için TDH sistemlerinin stratejik olarak uygulanmasının önemini vurgulamaktadır.

Anahtar Kelimeler

• Tekstil Donatılı Harç (TDH)
• Yığma Yapılar
• Doğrusal Olmayan Dinamik Analiz
• Sismik Güçlendirme
• Sonlu Elemanlar Modellemesi

Nonlinear seismic assessment of masonry buildings strengthened with textile-reinforced mortar : Two Case Studies

Öz

This study presents a numerical investigation into the nonlinear dynamic behavior of unreinforced and Textile-Reinforced Mortar (TRM)-strengthened masonry buildings through two representative case studies. The numerical modeling approach was first validated against experimental data from masonry wall specimens, demonstrating reliable accuracy in capturing nonlinear response characteristics such as peak load, displacement capacity, and damage distribution. Subsequently, full-scale nonlinear dynamic analyses were conducted on two masonry buildings with different structural configurations under multiple bidirectional earthquake records. Results revealed that TRM retrofitting significantly enhances seismic performance by reducing drift demands and limiting damage propagation. The effectiveness of the strengthening was highly influenced by the reinforcement configuration: while TRM applied only to external façades provided partial improvement, the configuration with TRM on both internal and transverse walls consistently prevented collapse and maintained drift ratios within acceptable performance limits. These findings underline the importance of strategic application of TRM systems for enhancing the seismic resilience of masonry structures.

Anahtar Kelimeler

• Textile-Reinforced Mortar (TRM)
• Masonry Structures
• Nonlinear Dynamic Analysis
• Seismic Retrofitting
• Finite Element Modeling

Kaynakça

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