Perde duvar konfigürasyonunun betonarme bir binanın sismik performansına etkisinin incelenmesi

Abstract

Betonarme perdeler depreme dayanıklı yapı tasarımında sıklıkla tercih edilen düşey taşıyıcı elemanlardır. Bu çalışmada, perde duvar konfigürasyonunun 10 katlı betonarme bir binanın sismik performansına etkisi araştırılmıştır. Betonarme perdelerin dış, orta ve iç akslarda yer aldığı üç farklı model, Türkiye Bina Deprem Yönetmeliği (TBDY-2018) esaslarına göre tasarlanmıştır. Tasarlanan modellerde zaman tanım alanında doğrusal olmayan analizler gerçekleştirilmiştir. Analizlerde, tasarım spektrumuna göre ölçeklenmiş deprem kayıtları (Durum-1) ile Pazarcık (Kahramanmaraş) depremine ait yer hareketi kaydı (Durum-2) kullanılmıştır. İncelenen modeller, Durum-1 için kontrollü hasar performans düzeyini sağlarken, Durum-2 etkisinde yalnızca çekirdek perde duvara sahip model bu performans düzeyinde kalmıştır. Binalar taban kesme kuvveti, histeretik enerji ve yer değiştirme talepleri açısından da değerlendirilmiştir. Çalışma, çekirdek perde duvara sahip modelin daha iyi bir sismik performans sergilediğini ortaya koymaktadır.

Keywords

• Betonarme perdeler
• Perde duvar konfigürasyonu
• Zaman tanım alanında doğrusal olmayan analiz
• Deprem performans analizi
• Türkiye Bina Deprem Yönetmeliği

Influence of shear wall layout on the seismic performance of an RC building

Abstract

The seismic behavior of shear walls plays a crucial role in the overall structural response by enhancing lateral stiffness, strength, and energy dissipation capacity. This study investigates the influence of shear wall layout on the seismic performance of a 10-story reinforced concrete (RC) building. For this purpose, three models with perimeter shear walls, shear walls along the middle axes, and a core shear wall are designed in accordance with the Turkish Building Earthquake Code (TBEC-2018). Nonlinear time-history analyses are conducted on these models using two approaches: (i) scaled ground motion records matching the design spectrum (Case-1) and (ii) the unscaled ground motion record from the Pazarcık (Kahramanmaraş) earthquake (Case-2). While all models satisfy the Controlled Damage (CD) performance level under Case-1, only the model with a core shear wall remains within this performance level under Case-2. Additionally, the models are assessed in terms of base shear, hysteretic energy dissipation, and top-story displacement demands. The study reveals that the model with a core shear wall exhibits better seismic performance than the other layouts, particularly under the Pazarcık (Kahramanmaraş) earthquake.

Keywords

• Reinforced concrete buildings
• Shear wall layout
• Nonlinear time history analysis
• Seismic performance evaluation
• Turkish Building Earthquake Code

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