The article presents the derivation of resolving equations for calculating concrete filled steel tubular columns with an annular cross-section under central compression, taking into account physical nonlinearity. solution is performed numerically by finite difference method. deformation theory plasticity G.A. Geniev used as law

This paper presents an experimental and numerical study on the lateral impact behavior of rubberized-fibrous concrete-filled steel tubular (CFST) columns. Four types concrete were utilized in program infilled columns: normal (NC), rubberized (RuC), fiber (SFC), hybrid RuC-SFC. Twelve specimens tested using drop-weight with fixed-sliding boundary conditions. Three different transverse energies p...