DOI: 10.5937/jaes15-12474
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions.
Volume 15 article 418 pages: 99 - 108
Concrete Filled Double Skin Steel Tubular (CFDST)
columns could be considered as a new type of concrete filled steel tubular
(CFT) columns. These columns are composed of two steel tubes in the concentric
configurations with concrete between them. In the current study, finite element
method was used to analyze the effects of load application, type of material,
and geometric parameters of the specimens. It was found that the results
obtained from finite element analysis show good agreement with available
experimental results. Findings of the current study clearly indicate the high
ductility and strength of CFDST columns under axial loading. The results show
the significant impact of yield stress of steel section, compressive strength
of concrete, thickness and diameter variations on the strength and ductility of
CFDST columns.
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