Publication: Mevcut Bir Viyadüğün Deprem Performansının Belirlenmesi
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Fen Bilimleri Enstitüsü
Institute of Science and Technology
Institute of Science and Technology
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Bu çalışmada, Sakarya Otoyolu - Levent Bağlantı Viyadükü’ nün Deprem Bölgelerinde Yapılacak Binalar Hakkında Yönetmelik 2007 ve AASTHO 2002 ’ye göre tanımlanan tasarım spektrumları için elastik deprem hesabı yapılmış ve viyadük elemanlarının tasarım depremi etkileri altındaki hasar durumları hakkında fikir sahibi olunmuştur. Daha sonra mevcut viyadüğe Deprem Bölgelerinde Yapılacak Binalar Hakkında Yönetmelik 2007 ’ye göre doğrusal ve doğrusal olmayan hesap yöntemleri uygulanmış ve her iki yöntemle elde edilen sonuçlar karşılaştırılmıştır. Doğrusal ve doğrusal olmayan hesap yöntemleri ile belirlenen kesit hasar bölgeleri önemli ölçüde benzerlik göstermektedir. Yapılan hesaplar sonucunda mevcut viyadüğün doğrusal elastik yöntem ile performansının belirlenmesinde, S1 depremi etkileri altında hemen kullanım performans seviyesini, S2 depremi etkileri altında can güvenliği performans seviyesini sağladığı, doğrusal olmayan yöntemle performansının belirlenmesinde Artımsal Eşdeğer Deprem Yükü ile İtme Analizi sonucunda, S1 depremi etkileri altında hemen kullanım performans seviyesini sağladığı, S2 depremi etkileri altında can güvenliği performans seviyesini sağlamadığı, Zaman Tanım Alanında Hesap yöntemi sonucunda ise S1 depremi etkileri altında hemen kullanım performans seviyesini ve S2 depremi etkileri altında can güvenliği performans seviyesini sağladığı görülmüştür.
In this paper, elastic earthquake calculation is made for the design spectrums of Sakarya Superhighway-Levent Connection Viaduct which are identified according to the 2007 Turkish Earthquake Code and AASTHO Standard Specifications for Highway Bridges 2002 by using Response Spectrum Analysis and have been informed about the probable damage situations of viaduct members under the effect of design earthquake. Afterwards, according to the 2007 Turkish Earthquake Code, linear and non-linear evaluation methods applied to the present viaduct and the results achieved by both methods have been compared. Damage states of sections which are defined by linear and non-linear evaluation methods are generally similar. As a result of the calculations it has been seen that identifying the performance of the existing viaduct by linear elastic method it proves immediate occupancy performance level under the effect of S1 earthquake level and life safety performance level under the effect of S2 earthquake level; identifying the performance by non-linear method as a result of pushover analysis it proves immediate occupancy performance level under the effect of S1 earthquake level but it doesn’t prove life safety performance level under the effect of S2 earthquake level; as a result of non-linear time history method it proves immediate occupancy performance level under the effect of S1 earthquake level and life safety performance level under the effect of S2 earthquake level.
In this paper, elastic earthquake calculation is made for the design spectrums of Sakarya Superhighway-Levent Connection Viaduct which are identified according to the 2007 Turkish Earthquake Code and AASTHO Standard Specifications for Highway Bridges 2002 by using Response Spectrum Analysis and have been informed about the probable damage situations of viaduct members under the effect of design earthquake. Afterwards, according to the 2007 Turkish Earthquake Code, linear and non-linear evaluation methods applied to the present viaduct and the results achieved by both methods have been compared. Damage states of sections which are defined by linear and non-linear evaluation methods are generally similar. As a result of the calculations it has been seen that identifying the performance of the existing viaduct by linear elastic method it proves immediate occupancy performance level under the effect of S1 earthquake level and life safety performance level under the effect of S2 earthquake level; identifying the performance by non-linear method as a result of pushover analysis it proves immediate occupancy performance level under the effect of S1 earthquake level but it doesn’t prove life safety performance level under the effect of S2 earthquake level; as a result of non-linear time history method it proves immediate occupancy performance level under the effect of S1 earthquake level and life safety performance level under the effect of S2 earthquake level.
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Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2008
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2008
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2008
Subject
Viyadük, Deprem Bölgelerinde Yapılacak Binalar Hakkında Yönetmelik 2007, Doğrusal hesap yöntemleri, Doğrusal olmayan hesap yöntemleri, Viaduct, Turkish Earthquake Code (2007), Linear evaluation methods, Non-linear evaluation methods