A concrete stress-strain model for analysis of high strength reinforced concrete columns

Yıl 2018, Cilt: 1 Sayı: 1, 25 - 37, 30.06.2018

Serkan Tokgöz , Cengiz Dündar

Öz

A concrete stress-strain
model for analysis of eccentrically loaded both short and slender high strength
reinforced concrete columns is proposed in this paper. The mathematical model has
been developed based on the test data to represent the complete nonlinear stress-strain
relationship of high strength concrete ranging from 40 to 90 MPa. Several
slender high strength concrete columns available in the literature have been
analysed using both proposed nonlinear stress-strain model and the equivalent
rectangular stress block model to confirm the reliability and validity of the
proposed model. Good agreement has been achieved between the computed theoretical
ultimate strength capacities and the test results of high strength concrete
columns.

Anahtar Kelimeler

Biaxial bending, High-strength concrete column, Stress-strain relationship, Ultimate strength

Yüksek dayanımlı betonarme kolonların analizi için beton gerilme-birim deformasyon modeli

Öz

Sunulan çalışmada, eksantrik yüklemeye maruz yüksek
dayanımlı kısa ve narin betonarme kolonların analizi için beton gerilme-birim
deformasyon modeli önerilmektedir. Beton dayanımı 40 ile 90 MPa arasında
değişen ve doğrusal olmayan beton gerilme-birim deformasyon modelini temsil
eden matematiksel model deneysel verilere dayandırılarak geliştirilmiştir. Beton
modelinin güvenilirliğini ve geçerliliğini doğrulamak için literatürde bulunan
birçok deneysel kolon önerilen beton modeli ve dikdörtgen gerilme dağılım
modeli kullanılarak analiz edilmiştir. Hesaplanan teorik yüksek dayanımlı kolon
taşıma gücü değerlerinin test değerleri ile uyumlu olduğu elde edilmiştir.

Anahtar Kelimeler

İki eksenli eğilme, Yüksek dayanımlı betonarme kolon, Gerilme-şekil değiştirme ilişkisi, Taşıma gücü

Kaynakça

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