Behavior of CFDST Stub Columns Considering Various Concrete Strengths

The experimental investigation of the axially compressive behavior of CFDST columns has been conducted by scientists from all around the globe. The objective of this numerical research is to evaluate the basic behavior of CFDST columns under axial compression. The simulation of circular CFDST columns utilizing normal strength concrete (NSC), high strength concrete (HSC), and ultra-high-strength concrete (UHSC) was done via finite element model (FEM) in ABAQUS software. This paper was proposed for the behavior of confined concrete with various concrete strengths. The curves of load versus strain and the ultimate load columns obtained from FEM were compared with those measured in the actual test to verify the accurateness of the FEM.