Axial compression behavior of square concrete-filled steel tubular columns reinforced with CFRP-ECC hybrid composite (opens in new tab)

Concrete-Filled Steel Tube (CFST) columns often encounter challenges such as insufficient compressive capacity, susceptibility to local buckling, and limited ductility. To mitigate these issues, a combined reinforcement approach using Carbon Fiber Reinforced Polymer (CFRP) and Engineered Cementitious Composites (ECC), termed Composite Enhanced Steel-Confined (CESC), is proposed. This paper investigates the axial compressive behavior of CESC through numerical simulation. A refined finite eleme...