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An experiment on compressive profile of the unstiffened steel plate-concrete structures under compression loading

  • Choi, Byong Jeong (Department of Architectural Engineering, Kyonggi University) ;
  • Han, Hong Soo (Department of Architectural Engineering, Kyonggi University)
  • Received : 2009.02.25
  • Accepted : 2009.10.20
  • Published : 2009.11.25

Abstract

This study intends to examine the characteristics of compressive behavior and conducts comparative analysis between normal compressive strength under existing equations (LRFD, ACI 318, EC 4) and experimental the maximum compressive strength from the compression experiment for the unstiffened steel plate-concrete structures. The six specimens were made to evaluate the constraining factor (${\xi}$) and width ratio (${\beta}$) effects subjected to the compressive monotonic loading. Based on this experiments, the following conclusions could be made: first, compressive behaviors of the specimens from the finite element analysis closely agreed with the ones from the actual experiments; second, the higher the width ratio (${\beta}$) was, the lower the ductility index (DI) was; and third, the test results showed the maximum compressive strength with a margin by 7% compared to the existing codes.

Keywords

composite column(s);steel plate-concrete;initial stiffness;ductility index;ultimate strength;finite element analysis

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