ORTA YÜKSEKLİKTEKİ BİTİŞİK NİZAM YAPILARDA ÇEKİÇLEME ETKİSİNİN İNCELENMESİ

Nüfus artışı ve çarpık kentleşme nedeniyle son yıllarda birçok bitişik nizam yapı inşa edilmiştir. Yapıların kütle ve rijitlik farklılıkları birbirleriyle çarpışmasına neden olur. Farklı dinamik özelliklere sahip yapıların davranışları farklı olacağından yapılar arasında deprem esnasında çekiçleme kuvvetleri oluşur. Bu çalışmada, bitişik nizam yapılarda çarpışma davranışı araştırılmıştır. Lineer olmayan Hertz yay modeli çarpışmanın modellenmesi için kullanılmıştır. Mevcut yapılar, değişken olarak yatay rijitlik, kat seviyesi ve derz boşluğu parametreleri dikkate alınarak Sap 2000 programı ile modellenmiştir. Yapılarda döşeme-kolon ve döşemedöşeme çarpışma durumları dikkate alınmıştır. Farklı derz boşluklarına göre Kocaeli deprem verileri kullanılarak yapıların dinamik analizleri yapılmıştır. Yapıların yer değiştirmeleri ve çekiçleme kuvvetleri elde edilmiş ve sonuçlar karşılaştırılmıştır. Türkiye Bina Deprem Yönetmeliği 2018’e (TBDY-2018) göre hesaplanan derz boşluklarının yapılarda yeterli olup olmadığı belirlenmiştir.

INVESTIGATION OF POUNDING EFFECT IN MID-RISE ADJACENT STRUCTURES

Many adjacent structures have been built in recent years due to population growth and the unplanned urbanization. The mass and stiffness differences of the structures cause collions with each other. Since behavior of structures having different dynamic properties will be different, the pounding forces occur between structures during earthquake. In this study, collision behavior in adjacent structures was investigated. The nonlinear spring Hertz model was used for modelling of collision. Existing structures were modeled with Sap 2000 program, by considering horizontal rigidity, story level and gap parameters as variables. Slab-column and slab-slab collision situations were taken into account in the structures. Dynamic analyses of the structures were performed by using Kocaeli earthquake data according to different gaps. Displacements and pounding forces of the structures were obtained and the results were compared. It was determined whether gaps calculated according to the Turkish Building Earthquake Code 2018 (TBEC-2018) were sufficient in the structures.

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