Concrete-filled steel tubes (CFSTs) combine the benefits of steel and concrete in one sturdy column. When utilised as an outer perimeter steel tube, steel's high modulus of elasticity provides for a stiff segment that effectively resists bending forces. The concrete fill prevents the thin outer steel tube from immediately buckling. Composite construction is often used nowadays because of the many advantages it offers over traditional building methods. Adding rectangular flutes to the outer steel tubes of the CFST columns was investigated to see if it would increase their stiffness. Steel-concrete composite fluted (SCCF) columns have rectangular flutes added to the concrete that fills steel tubes to increase the column's moment of inertia and visual appeal. It is critical that the connections between the steel and concrete be rock solid. Steel concrete composite posts' bond strength and instability are impacted by the addition of rectangular-shaped flutes to the steel tube.

Concrete-filled steel tube (CFST),Steel–concrete composite fluted,steel tubes,aesthetics