Techno Press


Steel and Composite Structures   Volume 2, Number 4, August 2002, pages 259-276
DOI: http://dx.doi.org/10.12989/scs.2002.2.4.259
 
Beam-column behavior of concrete filled steel tubes
G. Campione and N. Scibilia

 
Abstract     [Full Text]
    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 crosssectionrn(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, simplifiedrnexpressions 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.
 
Key Words
    compressive tests; flexural tests; composite members; fiber-reinforced concrete; ultimate load; load-deflection curves.
 
Address
Dipartimento di Ingegneria Strutturale e Geotecnica, Universita di Palermo, Viale delle Scienze-I-90128, ltaly
 

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