YIĞMA MİNARELERİN YAPISAL DAVRANIŞINA NARİNLİK ORANI ETKİSİNİN İNCELENMESİ

Son zamanlarda meydana gelen büyük depremler (örneğin, Mw7.2, 2011 Van, Türkiye depremi ve Mw6.6, 2017 Muğla, Türkiye depremi) yığma minarelerinin sismik yükler altında hasar aldığını göstermiştir. Minarelerin deprem davranışı, geometrik yapılarının farklılığı, yükseklik ve narinlik oranı nedeniyle diğer yapılardan farklıdır. Bu çalışmanın amacı, yığma minarelerin yer hareketine maruz kaldıklarında, narinlik oranının yapısal davranışlarına etkisini değerlendirmek ve bu parametrenin yapıda meydana gelen maksimum yer değiştirme, gerilme ve burulma momenti gibi yapısal talepler üzerindeki etkisini ölçmektir. Bu amaçla, farklı yükseklik ve çapa sahip altı yığma minare sayısal olarak modellenmiş ve dört yer hareketi seviyesi için oluşturulan sentetik deprem hareketi altında analiz edilmiştir. Değişen minare çapları için narinlik oranının belirlenmesi zor olduğundan, iki farklı şekilde araştırılmıştır.

INVESTIGATION OF THE EFFECT OF SLENDERNESS RATIO ON THE STRUCTURAL RESPONSE OF MASONRY MINARETS

Recent large earthquakes (eg, the Mw7.2, 2011 Van, Turkey, earthquake and the Mw6.6, 2017 Muğla, Turkey, earthquake) have shown that the vulnerability of slender masonry minarets under seismic loadings . The response of minarets to seismic excitations are different from other form structures because of their complex behavior due to geometrical changes in the cross section of bodies, height and slenderness ratio. The purpose of the present study is to evaluate the effect of slenderness ratio of masonryminarets when they are subjected to ground motion and to quantify the impact of this parameter on structural demands, such as top displacement, stress and torsional moment. To this aim, six masonry minarets with different height and drum diameter were numerically created and subjected to synthetic seismic loadings created for four ground motion levels. As it is difficult to determine the slenderness ratio for varying diameters, it was investigated in two ways

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