Parametric Study for Performance Evaluation of Concrete Filled Steel Composite Circular Members According to Design Codes

Abstract

The Concrete Filled Steel Tubular (CFST) members offer many structural features and have been widely used in civil engineering structures. Available in many different shapes, but most important circular, rectangular and square, etc. The CFST structures offer numerous structural benefits, including high strength, favorable ductility, and highly absorbable to withstand external shocks. They have proven to be economically as well as providing for the rapid construction and thus additional cost savings. The circular CFST members included normal strength concrete filled circular structural sections. In this study the parameters; diameter thickness , yield stress , and compressive strength of concrete  show their effects on the members and their comparison, according to calculation equations of the American (AISC360-16) and European (EC4-2004) codes for the design of which parameter effects performance of circular CFST members under axial compression and flexure.

Keywords

• Circular CFST members,Axial strength,Flexure strength,Parametric study,Design codes

Parametric Study for Performance Evaluation of Concrete Filled Steel Composite Circular Members According to Design Codes

Öz

Beton dolgulu çelik boru (BDÇB) elemanlar birçok yapısal özellikler sunmaktadırlar ve inşaat mühendisliği yapılarında yaygın olarak kullanılmaktadır. Birçok farklı kesit şekli mevcuttur, ancak en önemlileri dairesel, dikdörtgen ve kare vb. BDÇB yapıları, yüksek mukavemet, uygun süneklik ve harici darbelere dayanıklı yüksek soğurma gibi sayısız yapısal faydalar sunar. Ekonomik olduğu kadar hızlı inşaat ve dolayısıyla ek maliyet tasarrufu sağladığı kanıtlanmıştır. Dairesel BDÇB elemanları normal dayanımlı beton doldurulmuş dairesel yapısal kesitler içermektedir. Bu çalışmada, dairesel BDÇB elemanların eksenel basınç ve eğilme altındaki Amerikan (AISC360-16) ve Avrupa (EC4-2004) hesap denklemlerine göre performansı etkileyen Çap  kalınlık , akma dayanımı  ve beton puanın basınç dayanımı  parametrelerinin etkisi ve karşılaştırılması yapılmıştır.

Anahtar Kelimeler

• Dairesel BDÇB,Eksenel dayanım,Eğilme dayanımı,Parametrik çalışma,Tasarım kodları

Kaynakça

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