DOI QR코드

DOI QR Code

Structural assessment of cold-formed composite structures

  • de Andrade, S.A.L. (Civil Engineering Department, PUC, Rio de Janeiro, Brazil, Structural Engineering Department, UERJ) ;
  • da S. Vellasco, P.C.G. (Structural Engineering Department, UERJ) ;
  • Mergulhao, A.J.R. (Civil Engineering Department, UFOP)
  • Received : 2002.04.11
  • Accepted : 2002.09.23
  • Published : 2002.10.25

Abstract

The main aim of the present paper is to present the results of a full-scale experimental investigation to study the structural behaviour of composite steel beams. The composite beam was made of cold-formed steel section shapes filled with reinforced concrete. First a comprehensive description of the experimental results in terms of: deflections, deformations, slippage and stress levels on critical steps of the load path is presented. The experimental results were then compared to theoretical values obtained by the use of an analytical model based on ultimate limit state stress blocks. Finally, a practical application of the use of this structural solution is depicted.

Keywords

References

  1. ABNT-NBR 8800/86; (1986), Steel Building Design Code, Rio de Janeiro, ABNT.
  2. Andrade, S.A.L. Vellasco, P.C.G. Mergulhao, A.J.R. and Lehtola, N. (1995), "A design system used to access the resistance of composite structural members resistant to fire", Int.Conf. on Education, Practice and Promotion of Comp. Methods in Engineering Using Small Computers - EPMESC V, Macao, 489-494.
  3. Berner, K. (1988), Aspects of a New, Fire Resistant Steel/Concrete Composite Construction System, Internal Report, University of Darmstadt.
  4. Chien, E.Y.L. and Ritchie, J.K. (1984), Design and Construction of Composite Floor Systems, Canadian Institute of Steel Construction, CISC.
  5. Jungbluth, O. and Gradwohl, W. (1985), Berechnen und Bemessen von Verbundprofilstaben Unter Raumtemperatur und fur Feuerwiderstandsklassen, Forschungsbericht Nr. 32/85, Institut fur Stahlbau und Werkstoffmechanik, TH Darmstadt.
  6. Jungbluth, O. (1986), Verbund- und Sandwichtragwerke, Springer-Verlag, Berlin.
  7. Jungbluth, O. and Gradwohl, W. (1998), Berechnung und Bemessung von Verbundprofilstaben bei Raumtemperatur und Unter Brandeinwirkung, Springer-Verlag, Berlin.
  8. Lehtola, N. (1992), "Sistemas estruturais mistos aco/concreto armado resistentes ao fogo", M.Sc. Dissertation, Civil Engineering Department, PUC-Rio.
  9. Mergulhao, A.J.R. (1994), "Comportamento de vigas-mistas constituídas por perfis de aco preenchidos com concreto armado", M.Sc. Dissertation, Civil Engineering Department, PUC-Rio.