Betonarme Kesitlerin Eğilme Rijitliği

Deprem Bölgelerinde Yapılacak Binalar Hakkında Yönetmelik Bölüm 7 de tanımlanan çatlamış kesit eğilme rijitliği ve performansa dayalı çözüm için yapılacak  itme analizinin başlangıcında kullanılacak rijitlik değeri, betonarme kesitlerin göçme öncesi rijitliğinin olabildiğince gerçeğe yakın belirlenebilmesi konusuna önem kazandırmıştır. Bu çalışmada betonarme kesitlerin değişik gerilme evrelerindeki davranışları gözönüne alınarak, kesit rijitliğini etkileyen özellikler yeniden incelenmiş, bulunan rijitliklerle elde edilen yerdeğiştirmelerin deneysel verilerle karşılaştırılması yapılmış, elde edilen sonuçlara dayanan bazı önerilerde bulunulmuştur.

Bending stiffness of reinforced concrete sections

Bending stiffness of cracked reinforced concrete sections defined by Turkish Earthquake Code Section 7 and bending stiffness to be used at the beginnig of push-over analysis, increased the importance of a realistic determination of bending stiffness before collapse.  In this study for considering behaviour of reinforced concrete sections under various stress phases, the factors effecting rigidity are revisited. Deflections obtained by using these bending rigidities compared with the published results obtained in various laboratory tests. Some proposals are made depending on the resuls of this work.

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