KLOR İYONU ETKİSİNDEKİ BETONARME YAPI ELEMANLARININ DAYANIKLILIĞI İÇİN OLASILIĞA DAYALI TASARIM

Yıl 2011, Cilt: 22 Sayı: 107, 5409 - 5423, 01.12.2011

Özkan Şengül

Öz

Klor etkisinde kalacak betonarme bir yapının uzun servis ömrüne sahip olması ve bu ömrün belirlenebilmesi için dayanıklılığa göre tasarım gereklidir. Böyle bir tasarımda klor iyonu yayınımı matematiksel bir model ile ifade edilmeli ve parametreler gerçekci bir şekilde belirlenerek bu modele eklenmelidir. Olasılığa dayalı bir yöntem kullanılarak hem yapının maruz kaldığı çevresel etkiler, hem de yapı özelliklerindeki dağılımlar dikkate alınmalıdır. Bu çalışmanın temel amacı klor iyonu bulunan ortamlarda kalacak yapıların dayanıklılığa (dürabiliteye) göre tasarımıdır. Çalışmada, klor iyonlarının beton içine girişi ve taşınımı Fick’in 2. yasası ile modellendi ve yapı özelliklerindeki ve çevresel etkilerdeki dağılımları Monte Carlo analizi ile dikkate alan basit bir yazılım hazırlandı. Ayrıca, korozyonu önemli oranda etkileyen yapısal parametrelerin dürabiliteye etkileri irdelendi

Anahtar Kelimeler

Dayanıklılığa dayalı tasarım , Monte Carlo analizi , klor etkisi , korozyon , olasılık

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