Behaviour of slender concrete-filled dual steel tubular columns subjected to eccentric loads

In this paper an experimental program on concrete-filled steel tubular columns subjected to eccentric loads is presented. The have different cross-sectional configurations, including single (CFST) and dual (CFDST). response of all the was studied physical state specimens after tests checked. level utilisation achieved by each type column in relation its resistance analysed together with influence extra inner tube or filling concrete for CFDST specimens. Finally, EN1994-1-1 provisions were assessed comparing results predictions given simplified method which appears be conservative case.