Behavior of Corroded Thin-Walled Concrete-Filled Steel Tubular Stub Columns

The behavior of two series corroded thin-walled concrete-filled steel tubes (CFSTs) was investigated in this paper. One series, called the CT consists fourteen CFST specimens by NaCl solution, while other, AT six test pieces atmosphere. Outer surfaces were scanned using a 3D scanner machine, and complete surface profile each specimen obtained for corrosion evaluation different methods study. Entire compressed to failure, their behaviors under loading recorded. It is shown that has fractal feature, it significant effect on ductility specimens. In addition, FEA models established based scanning results ABAQUS program verified against column results.