Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

A study of continuous stem girder systems

  • Kim, Boksun (Scott Sutherland School of Architecture, Robert Gordon University) ;
  • Wright, Howard D. (Department of Civil Engineering, University of Strathclyde) ;
  • Cairns, Roy (Department of Civil Engineering, University of Strathclyde)
  • Published : 2001.05.25
⟨ Previous Next ⟩

Abstract

A new beam system comprising two cantilever stems and an interspan composite beam has been developed and its design philosophy is described in this paper. The system provides the equivalent of a semi-continuous beam without the requirement to calculate the moment rotation capacity of the beam-to-column connection. The economy of braced frames using the system has been investigated and compared with simple, continuous or semi-rigid systems. It is shown that the costs of the proposed system are similar to the semi-rigid system and cheaper than both the simply supported and rigid beam systems. Two tests have been carried out on 6 meter span beams, which also incorporated an asymmetric flange steel section. The behaviour of the system is presented and the test results are compared with those obtained from the theory.

Keywords

References

  1. Anderson, D., Colson, A., and Jaspart, J.-P. (1993), "Connections and frame for economy", New Steel Constr., 1(6), 30-33.
  2. Bjorhovde, R., and Colson, A. (1991), "Economy of Semi-rigid design", Connections in Steel Structures II, Proc. of the 2nd Int. Workshop, Pittsburgh, USA, 418-430.
  3. British Standards Institution (1990), BS 5950: Part3: Section 3.1. Code of Practice for Design of Simple and Continuous Composite Beams, BSI, London.
  4. British Standards Institution (1992), ENV 1993-1-1, Eurocode 3: Design of Steel Structures. Part 1.1: General Rules and Rules for Building, BSI, London.
  5. British Standards Institution (1992), DD ENV 1994-1-1, Eurocode 4 Design of Composite Steel and Concrete Structures. Part 1.1: General Rules and Rules for Building, BSI, London.
  6. Couchman, G. (1997), Design of Semi-Continuous Braced Frames, SCI, Ascot.
  7. Kim, B. (1999), "A Study on a continuous stem girder system", Ph.D. Thesis, Dept. of Civil Engineering, University of Strathclyde, UK.
  8. Lawson, R.M., Kerry, J.C.A., and Anderson, D. (1997), "Benefits of partial strength steel and composite connections in braced frames", Unpublished Rep., SCI.
  9. Leonard, M. (1997), "The development of a spreadsheet solution for costing structural steel", B. Eng. (Hons) Thesis, Dept. of Civil Engineering, University of Strathclyde, UK.
  10. Nethercot, D.A. (1998), "Towards a standardisation of the design and detailing of connections", Proc. of the 2nd World Conf. on Steel in Constr., San Sebastian, Spain.
  11. Owens, G.W., and Cheal, B.D. (1989), Structural Steelwork Connections, Butterworths, London.
  12. SCI (1989), Design of Members Subject to Combined Bending and Torsion, The Steel Construction Institute, Ascot.
  13. SCI and BCSA (1991), Joints in Simple Construction, Volume 1. Design Methods, The Steel Construction Institute and The British Constructional Steelwork Association Ltd.
  14. SCI (1996), Steel Designers' Manual, The Steel Construction Institute, Blackwell Science, London.
  15. Taelim (1993), Details for Steel Structures, Taelim, Seoul (in Korean).
  16. Weynand, K., Jaspart, J.-P., and Steenhuis, M. (1998), "Economy studies of steel building frames with semi-rigid joints", Proc. of the 2nd World Conf. on Steel in Constr., San Sebastian, Spain.
  17. Wright, H.D. (1990), "The deformation of composite beams with discrete flexible connection", J. Constr. Steel Res., 15, 49-64. https://doi.org/10.1016/0143-974X(90)90042-F