Steel and Composite Structures

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Beam-column behavior of concrete filled steel tubes

  • Campione, G. (Dipartimento di Ingegneria Strutturale e Geotecnica, Universita di Palermo) ;
  • Scibilia, N. (Dipartimento di Ingegneria Strutturale e Geotecnica, Universita di Palermo)
  • Received : 2002.01.10
  • Accepted : 2002.07.10
  • Published : 2002.08.25
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Abstract

In the present investigation the experimental and theoretical flexural and compressive behavior of short tubular steel columns filled with plain concrete and fiber-reinforced concrete (FRC) was examined. For a given length of the members, the effects of different geometry and dimensions of the transverse cross-section (square and circular) were investigated. Constituent materials were characterized through direct tensile tests on steel coupons and through compressive and split tension tests on concrete cylinders. Load-axial shortening and load-deflection curves were recorded for unfilled and composite members. Finally, simplified expressions for the calculus of the load-deflection curves based on the cross-section analysis were given and the ultimate load of short columns was predicted.

Keywords

References

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