Journals / Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi / 2026 / Cilt: 26 Sayı: 77

Reducing Soft-Story Effects in Reinforced Concrete Frames with New Generation Infill Walls

Betonarme Çerçevelerde Yumuşak Kat Etkilerinin Yeni Nesil Dolgu Duvarlar ile Azaltılması

İbrahim Serkan Mısır(DOKUZ EYLÜL ÜNİVERSİTESİ)0000-0001-8552-8389
Ömer Aldemir(GAZİ ÜNİVERSİTESİ)0000-0002-8572-4440
Pages
192–199
Publication Date
2024-05-27
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Numerical simulations showed that the use of new generation infill walls has the potential to reduce the soft story formation even in the buildings with unfilled first stories, compared to fully infilled model cases.

📌 3 Key Takeaways

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Objective & Hypothesis:Past earthquakes have shown that many buildings with infill walls, especially due to the walls being removed for various purposes on the first floor, exhibit soft-story/weak story mechanisms due to increased lateral displacement demand during earthquakes and building collapse on that floor.
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Key Findings & Data:The aim of the present study is to investigate the effect of new generation infill walls, introduced as a new concept in the Turkish Building Earthquake Code-2018, in reducing the soft story formation in reinforced concrete frames.
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Conclusion & Impact:Numerical simulations showed that the use of new generation infill walls has the potential to reduce the soft story formation even in the buildings with unfilled first stories, compared to fully infilled model cases.
🔬Design:Modeling & Simulation
📍Scope:2018 Verileri
⚙️Variables:Dolgulu betonarme çerçeveler · deprem güvenliği · yumuşak kat düzensizliği

Abstract

Past earthquakes have shown that many buildings with infill walls, especially due to the walls being removed for various purposes on the first floor, exhibit soft-story/weak story mechanisms due to increased lateral displacement demand during earthquakes and building collapse on that floor. The aim of the present study is to investigate the effect of new generation infill walls, introduced as a new concept in the Turkish Building Earthquake Code-2018, in reducing the soft story formation in reinforced concrete frames. Within the scope of the study, nonlinear analyses were performed on numerical models of reinforced concrete frames with only the upper stories infilled in order to force the models to exibit soft-story irregularities. The frame and infill wall parameters used in the analysis were obtained from the quasi-static tests on planar reinforced concrete frames with and without infill walls. Numerical simulations showed that the use of new generation infill walls has the potential to reduce the soft story formation even in the buildings with unfilled first stories, compared to fully infilled model cases.

Özet

Çeşitli amaçlarla özellikle zemin kat dolgu duvarları kaldırılmış çok sayıda binanın depremler sırasında bu katta artan yanal deplasman talebiyle yumuşak kat/zayıf kat mekanizmaları sergilediği ve binanın bu kat üzerine çöktüğü geçmiş depremlerden bilinmektedir. Sunulan çalışmanın amacı, 2018 Türkiye Bina Deprem Yönetmeliği’nde de kabul gören yeni nesil dolgu duvarların betonarme çerçevelerde yumuşak kat oluşumunu azaltmadaki etkilerini araştırmaktır. Çalışma kapsamında dolgulu betonarme çerçeve modelleri üzerinde doğrusal olmayan analizler gerçekleştirilmiş, göz önüne alınan çok katlı düzlemsel çerçevelerde yumuşak kat etkilerinin belirgin hale gelmesi için modellerde yalnızca üst katların açıklıklarında dolgu duvar etkisi dikkate alınmıştır. Analizde kullanılan çerçeve ve dolgu duvar parametreleri, dolgu duvarlı ve dolgu duvarsız düzlemsel betonarme çerçeveler üzerinde daha önce yürütülen yarı statik testlerden elde edilmiştir. Simülasyonlar, geleneksel dolgu duvar durumuna kıyasla yeni nesil duvar kullanımının, ilk katları dolgusuz binalarda bile yumuşak/zayıf kat oluşumunu azaltma potansiyeline sahip olduğunu göstermektedir.

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Cite This Article

Bakala, P. I. B., Mısır, İ. S., Aldemir, Ö. (2024). Reducing Soft-Story Effects in Reinforced Concrete Frames with New Generation Infill Walls. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, Cilt: 26 Sayı: 77, 192–199. https://doi.org/10.21205/deufmd.2024267701

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