Hasargörebilirlik analizlerinde yer hareketi veri setine ve şiddet ölçüsüne bağlı epistemik belirsizliğin değerlendirilmesi

Yıl 2019, Cilt: 34 Sayı: 4, 2125 - 2140, 25.06.2019

Özkan Kale

https://doi.org/10.17341/gazimmfd.424054

Öz

Yapıların hasargörebilirlik analizlerinin ana unsurlarını yer hareketi
veri setinin derlenmesi, yapısal analiz ve yer hareketi şiddet ölçüsü seçimi olarak
sıralamak mümkündür. Bu çalışmada, hasargörebilirlik analizlerinde deprem veri
seti ve şiddet ölçüsü seçimine bağlı olarak ortaya çıkan epistemik belirsizlikler
değerlendirilmiştir. Bu amaçla, dört farklı deprem veri seti ve seçilen üç
farklı şiddet ölçüsü için bina türü yapı simülasyonlarına ait hasar potansiyeli
eğrileri iki farklı yaklaşıma göre geliştirilmiş ve olası farklılıklar
incelenmiştir. Hasar potansiyeli eğrileri ve deterministik deprem senaryoları
kullanılarak yapılan detaylı değerlendirmeler derlenen deprem veri setleri,
şiddet ölçüsü seçimi ve hasar potansiyeli eğrilerinin türetilmesinde uygulanan
yöntemlerin sonuçları belirli düzeylerde etkileyebileceğini göstermiştir.
Bununla birlikte sonuçları etkileyen en etkin parametrenin şiddet ölçüsü olduğu
ve efektif şiddet ölçüsü seçiminin hasargörebilirlik analizlerindeki epistemik
belirsizliği alt seviyelere indirgeyebileceği sonucuna ulaşılmıştır.

Anahtar Kelimeler

Hasargörebilirlik analizi, yer hareketi veri seti, şiddet ölçüsü, epistemik belirsizlik

Kaynakça

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