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Nonlinear Finite Element Analysis of Concrete Filled Steel Tubes | ||
| Journal of University of Babylon | ||
| Article 1, Volume 21, Issue 2, 2013, Pages 477-492 | ||
| Authors | ||
| Haider M. Abdul Hussein; Ahmed N. Mohammed | ||
| Abstract | ||
| In the present research, the nonlinear three dimensional finite element analysis of concrete filled steel tube (CFST) is investigated, and the ANSYS 12.1 software is used. Both circular and square cross sections are studied, and parametric studies are carried out to figure out the effect of the material strength and the steel tube thickness on the structural behavior of CFST. In the material modeling, the confining effect of the concrete was taken into account while the steel was modeled as a kinematic bilinear material with perfect bond between concrete and steel. Comparison with previous experimental studies shows about 90% agreements. It was concluded that concrete compressive strength is the main factor affecting the structural strength of CFST | ||
| Keywords | ||
| Nonlinear analysis; Concrete; Filled Steel Tubes; ANSYS | ||
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