Geliştirilmiş Deplasman Katsayı Yöntemi (GDKY) Kullanarak Bazı Yapısal Parametreler ile Depremsel Hasar Arasındaki İlişkinin Araştırılması

Yıl 2017, Cilt: 6 Sayı: 2, 619 - 632, 30.12.2017

Hakan Karaca

https://doi.org/10.17100/nevbiltek.263972

Öz

Deprem
hasarı ile yer hareketi büyüklüğü arasındaki bağıntıyı açıklamak için
araştırmacılar güvenilir ve hızlı yöntemler aramaktadırlar. Hasarın nicelik
olarak ifade edilmesi için, tamamıyla istatistiksel verilere dayanan hasar
görebilirlik eğrileri geliştirilmiştir. Bu eğrilerin elde edilmesi sırasında,
genellikle yapıların kat sayıları göz önüne alınarak sınıflandırılma yapıldığı
bilinmektedir. Ancak, yapı kat sayıları ile hasar arasında herhangi bir bağıntı
geliştirilmediğinden de anlaşılır ki, bahsi geçen yaklaşımın doğruluğu hala
sorgulanmaya açıktır. Bu çalışmada da, sadece bu bağıntının olup olmadığı
değil, hasar ile doğal titreşim periyodu, süneklik ve yanal rijitlik katsayısı
arasında herhangi bir bağıntı olup olmadığı araştırılmıştır. Geliştirilmiş
Deplasman Katsayıları Yöntemi (GDKY) kullanılarak yanal ötemeler hesaplanmış ve
çatı katı ötelemesi ile öteleme oranı elde edilmiştir. Çalışma sonunda, hasar
görebilirlik eğrilerinin, bahsi geçen yapısal parametrelerle ilişkili olduğu
anlaşılmış ancak bu ilişkinin, kullanılan veri tabanına ve yapıların dağılıma
bağlı olduğu belirtilmiştir. 

Anahtar Kelimeler

Kat sayısı, doğal titreşim periyodu, yanal rijitlik katsayısı, süneklik, hasar görebilirlik

Investigation of the Relationship between the Various Structural Parameters and Performance Displacement by Using Improved Displacement Coefficient Method

Öz

The need to express the earthquake
damage in terms of the exposed level of ground motion; pushed the researchers
to find a reliable and quick-to-apply method. In an effort to quantify the
damages, fragility curves are introduced which are based on statistical
evaluation. In the derivation of the fragility curves for buildings, the number
of story is used as the main grouping parameter. However, since there isn’t an
explicit form of equation relating the number of stories to the damage, this
common approach requires further investigation. In this study, not only the
influence of the number of story on the damage but also the influence of the
various parameters of the buildings, such as fundamental period, ductility
ratio and lateral stiffness index are investigated. Improved Displacement
Coefficient Method (IDCM) is used to obtain the lateral performance of the
building in terms of roof displacements and global drift ratios. At the end of
the study of the study, it is proven that fragility curves are sensitive to the
mentioned parameters; however, it is very dependent on the compiled database. 

Anahtar Kelimeler

Number of story, fundamental period, ductility, lateral stiffness index, fragility

Kaynakça

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