Abstract

In this paper, the behavior of concrete-filled double skin steel tubes (CFDST) with simply supported boundary condition was analyzed by Finite Element Analysis method. The Finite Element analysis mode was established and the results have a good consistent with experimental results. The work mechanic and full range analysis of concrete filled double steel tube under lateral impact were analyzed, the results show that the damage of CFDST with simply supported boundary condition under lateral impact is in ductile manner.

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