Effect of foundation embedment depth on spectral response considering dynamic structure-pile-soil interaction

Yıl 2024, Cilt: 30 Sayı: 1, 44 - 52, 29.02.2024

Ozan Bilal Yasin Fahjan

Öz

To investigate the effect of Dynamic Structure-Pile-Soil Interaction (SPSI) on structural elements, one of the following methods (Methods I, II, III) should be selected regarding the Structural Case described in the Turkish Building Earthquake Code (TBDY, 2018) in the relevant sections (TBDY Table 16.5 and Annex 16C). Although "Kinematic" and "Inertial" effects are considered directly in the analyzes outlined in TBDY 2018 (Direct and Substructural Methods) determined for Method I, in other methods (Method II-III), indirect and approximate results are obtained (especially in Kinematic Interaction Analysis). Generally, two factors dominate the Kinematic Interaction: Embedment Depth and Base-slab Averaging. In this research, Soil-Pile-Structure interaction analyzes were performed according to the Direct Method and the Kinematic Part of the Substructural Method. The variation of the Foundation Response Spectrum, one in which the Structure is present or not in the model, has been investigated according to the variation of embedment depth.

Anahtar Kelimeler

Soil pile structure interaction, Direct method, Substructure method, Kinematic and inertial interaction

Dinamik yapı-kazık-zemin etkileşimi bağlamında temel gömme derinliğinin spektral tepki üzerindeki etkisi

Öz

Dinamik Yapı-Kazık-Zemin Etkileşiminin (YKZE) yapısal elemanlar üzerindeki etkisinin araştırılması amacıyla, Türkiye Bina Deprem Yönetmeliği’nde (TBDY, 2018) tariflenen yöntemlerin (Yöntem I, II, III), hangi durumlarda tercih edilmesi gerektiği ve kapsamı ilgili bölümlerde (TBDY Tablo 16.5 ve EK16C) açıklanmıştır. Yönetmelikte, Yöntem I için belirlenen farklı çözüm yöntemleri (Ortak ve Altsistem Yöntemi) takip edilerek yapılan analizlerde “Kinematik” ve “Eylemsizlik” Etkileşimi doğrudan dikkate alınsa da diğer yöntemlerde (Yöntem II-III) dolaylı ve yaklaşık sonuçların elde edildiği (özellikle Kinematik etkileşim) varsayılarak çalışmalar gerçekleştirilmektedir. Bilindiği üzere Kinematik etkileşiminde 2 faktör baskın olmaktadır: Gömme derinliği ve Taban Plaka Ortalaması. Bu çalışmada Yapı-Kazık-Zemin etkileşim analizleri Ortak Yöntem ile Altsistem yönteminin Kinematik kısmı dikkate alınarak hazırlanan modellerle gerçekleştirilmiştir. Üstyapının modelde bulunduğu ve bulunmadığı durumlarda oluşan Temel Tepki Spektrumlarının değişimi gömme derinliğine bağlı olarak incelenmiştir.

Anahtar Kelimeler

Yapı-Kazık-Zemin etkileşimi, Ortak yöntem, Altsistem yöntemi, Kinematik ve eylemsizlik etkileşimi

Kaynakça

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