Progressive Collapse Response of Reinforced Concrete Buildings Designed According to Turkish Earthquake Code

Year 2022, Volume: 11 Issue: 2, 694 - 705, 30.06.2022

Aydın Demir

https://doi.org/10.17798/bitlisfen.1094003

Cited By: 2

Abstract

In this study, the progressive collapse response of reinforced concrete buildings designed for the ‘government buildings’ occupancy class was investigated numerically. For this purpose, two reinforced concrete framed buildings were initially designed according to the Turkish Earthquake Code published in 2018. Later, those buildings’ progressive collapse responses were evaluated using the Alternate Path direct design approach defined in the GSA-2016 and UFC 4-023-03 guidelines. Three different column removal scenarios were employed independently by applying the nonlinear dynamic analysis method. Nonlinear fiber hinges were used to simulate the plasticity of the structural load-bearing members. As a result of this study, it is deduced that a limited local collapse disproportioned to the initial failure was observed on the investigated buildings. In addition to the conventional seismic design methods, the buildings designed according to the Turkish Earthquake Code should also be assessed with respect to the explicit design approaches against unforeseeable extreme events to reduce their progressive collapse risk.

Keywords

Progressive collapse, Nonlinear dynamic analysis, Reinforced concrete, Government buildings occupancy class, Turkish Earthquake Code

Supporting Institution

The Scientific and Technological Research Council of Turkey (TUBITAK)

Project Number

2219-International Postdoctoral Research Fellowship Program

Thanks

The author was supported by the 2219-International Postdoctoral Research Fellowship Program of The Scientific and Technological Research Council of Turkey (TUBITAK). The author also thanks Prof. Dr. Halil SEZEN for his invaluable contributions and support.

Türkiye Bina Deprem Yönetmeliğine Göre Tasarlanan Betonarme Binaların İlerlemeli Çökme Davranışları

Abstract

Bu çalışmada, kamu binaları kullanım sınıfı göre tasarlanan betonarme binaların ilerlemeli çökme davranışı sayısal olarak incelenmiştir. Bu amaçla öncelikle iki adet betonarme çerçeve türü bina Türk Bina Deprem Yönetmeliğine (2018) göre tasarlanmıştır. Daha sonra, bu binaların ilerlemeli çökme davranışı, GSA-2016 ve UFC 4-023-03'te yönetmeliklerinde tanımlanan doğrudan tasarım yaklaşımı kullanılarak değerlendirilmiştir. Alternatif yol doğrudan tasarım yaklaşımı için doğrusal olmayan dinamik analiz yöntemi ile birbirinden bağımsız olarak üç farklı kolon kaldırma senaryosu uygulanmıştır. Taşıyıcı sistem elemanlarının plastik davranışlarını temsil etmek amacıyla doğrusal olmayan fiber elemanlar kullanılmıştır. Çalışma sonucunda, incelenen binalarda başlangıçtaki hasar ile orantısız lokal yerel göçme gözlemlenmiştir. Bu sebeple, kamu binaları kullanım sınıfına sahip Türkiye Bina Deprem Yönetmeliğine göre tasarlanan binalar, herhangi bir dinamik yük etkisi altında ilerlemeli çökme riskine karşı dirençlerini artırmak için ek doğrudan tasarım yöntemleri ile değerlendirilmeleri gerekmektedir.

Keywords

İlerlemeli Çökme, Doğrusal olmayan dinamik analiz, Betonarme, Kamu binaları kullanım sınıfı, Türkiye bina deprem yönetmeliği

Project Number

2219-International Postdoctoral Research Fellowship Program

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