TY  - JOUR
T1  - EVALUATION OF REINFORCING BARS RATIO EFFECTS ON SCC BEAM-COLUMN JOINT PERFORMANCE
TT  - Kendiliğinden Yerleşen Betonla Yapılan Kolon-Kiriş Birleşimlerinde Donatı Oranı Etkisinin Değerlendirilmesi
AU  - Farrokh Ghatte, Hamid
PY  - 2019
DA  - December
Y2  - 2019
DO  - 10.17482/uumfd.587505
JF  - Uludağ Üniversitesi Mühendislik Fakültesi Dergisi
JO  - UUJFE
PB  - Bursa Uludağ Üniversitesi
WT  - DergiPark
SN  - 2148-4155
SP  - 141
EP  - 152
VL  - 24
IS  - 3
LA  - en
AB  - Beam-column joints require a high ductility during the unexpected loadings that necessitate theneed for ductile concrete in such unprotected locations. Alternatively, self-compacting concrete (SCC) isa sort of concrete which has generated tremendous interest throughout the last decades in order to reach aductile structural elements during the seismic actions. Specific properties of this type of concrete includehigh performance, high resistance against segregation and needless to internal or external vibration inorder to compact. In the seismic regions, ductility is one of the most important factors in the design ofreinforced concrete (RC) members, especially structural joints flexural performance; it is due to theenhance in the capability of plastic deformability. This paper describes load-displacement behavior ofexperimental and theoretical analysis of four SCC beam-column joints with different percentage of theratio of the reinforcing bars (ρ). In the theoretical phase of this investigation three-dimensional nonlinearfinite element method (FEM) model i.e., Seismostruct was used and the load-deflection diagrams wereplotted to compare the test results with the numerical output. The experimental results and nonlinear FEMmodeling indicate that using SCC as a workable concrete in beam-column joints of reinforced concretestructures has satisfactory performance in terms of ductility and energy dissipations.
KW  - Beam-column joint
KW  - Ductility
KW  - FEM
KW  - Load-deflection
KW  - Self-compacting concrete
N2  - Yüksek süneklik gerektiren kolon-kiriş düğüm noktaları gibi korunmasız bölgelerde, beklenmedikyüklemeler altında, sünek betona ihtiyaç duyulmaktadır. Alternatif olarak, kendiliğinden yerleşen beton(KYB), deprem etkisi altinda elemanların daha sünek davranış gösteren bir yapıya ulaşmak için sonyıllarda büyük ilgi yaratan bir beton türüdür. Bu tipteki betonların belirgin özellikleri yüksek performans,segregasyona karşı yüksek direnç ve yerleşme için iç veya dış vibrasyona ihtiyaç duyulmamasıdır.Deprem bölgelerinde, süneklik, özellikle eğilmeye maruz kalan yapısal bağlantı noktalarınınperformansında önemli bir faktördür ve bu davranış plastik yerdeğiştirme kapasitesindeki artıştankaynaklanmaktadır. Bu makalede, KYB kullanılan ve farklı donatı oranlarındaki dört adet kolon-kirişdüğüm noktasının yük-yerdeğiştirme davranışının deneysel ve teorik analizleri açıklanmaktadır. Buaraştırmanın teorik aşamasında, üç boyutlu sonlu elemanlar metodu (SEM), Seismostruct doğrusalolmayan yazılımı kullanılarak, deneysel-nümerik sonuçlar karşılaştırılmış ve yük-yerdeğiştirmediyagramları çizdirilmiştir. Deneysel sonuçlar ve doğrusal olmayan SEM modeli, kolon-kiriş düğümnoktalarında işlenebilir beton olarak KYB’un kullanımının, betonarme yapılarda süneklik ve enerji yutmakapasitesi bakımından tatmin edici bir performansa sahip olduğunu göstermiştir.
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UR  - https://doi.org/10.17482/uumfd.587505
L1  - http://dergipark.org.tr/tr/download/article-file/901131
ER  -