Esra Gökçe SAĞIR, HASAN MURAT TANARSLAN, Reza JAHANGİRİ, ÇAĞLAR YALÇINKAYA

Farklı Kalınlıkta UYPB Laminelerin Eğilme Kapasitesine Katkısının İncelenmesi

Çalışmada, ultra yüksek performanslı beton (UYPB) plakalarla güçlendirilmiş eğilme dayanımı yetersiz betonarme kirişlerin davranışı deneysel olarak incelenmiştir. Güçlendirme amacıyla kullanılacak plakaların imalatı için %3 fiber hacmine sahip UYPB kullanılmıştır. Bir tanesi kontrol numunesi olmak üzere, kalınlık değişiminin eğilme davranışı üzerindeki etkilerini gözlemlemek amacıyla 3 farklı kalınlıkta UYPB plaka üretilmiş (30 mm, 50 mm ve 70 mm) ve plakalar betonarme kirişlere uygulanmıştır. Kirişler, dört noktalı eğilme yükleri altında test edilmiştir. UYPB plaka ile güçlendirilmiş numunelerde yük taşıma kapasitesinde %20 ila %58 arasında değişen oranlarda artış elde edilmiştir.

Anahtar Kelimeler:

Ultra Yüksek Performanslı Beton, Betonarme Kiriş, Güçlendirilmiş Kirişte Eğilme Davranışı

Investigate the Influence of Different UHPC Laminates Thickness to the Flexural Capacity

The aim of this study is to investigate behavior of reinforced concrete beams with insufficient flexural strength which are reinforced by ultra high performance concrete (UHPC) were examined experimentally. UYPC with 3% fiber volume was used for manufacturing laminates which will be used for reinforcing. UHPC having three different thickness (30 mm, 50 mm and 70 mm) where one of them will be control sample was used for observing effect of change in thickness over flexural behavior were manufactured and applied over reinforced concrete beams. RC Beams were tested under four -point bending loads. Increase in load carrying capacity varying with 20%-58% rates were obtained in samples which were reinforced with UHPC.

Keywords:

Ultra high performance concrete, reinforced concrete beam, flexural behavior in reinforced beam,

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