Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Effect of direct member loading on space truss behaviour

  • Published : 2000.07.25
⟨ Previous Next ⟩

Abstract

It is inevitable that every space truss structure would be under some form of direct member loading. At least the structure self weight certainly affects the members directly, and in structures involving top concrete slabs or cladding, their weight is also likely to apply some lateral pressure on the members. In spite of that, direct member loading is usually ignored in space truss designs and assumed to lead only to a negligible effect on truss performance. This study is intended to explore this point and identify the actual effects that can arise from direct member loading, and eventually provide an answer to the question of whether the current design practice is satisfactory or certain modifications would be needed. After presenting two analytical techniques to allow the study of space trusses with laterally loaded members, the paper describes a wide parametric study involving practical-size space trusses with different configurations, aspect ratios, boundary conditions and number of chord panels.

Keywords

References

  1. EI-Sheikh, A.I. and McConnel, R.E. (1989), "A Finite Element Approach", Technical Report CUED/D Struct/ TR128, Dept of Engineering, Cambridge Univ.
  2. El-Sheikh, A.I. (1994), "Sensitivity of composite and non-composite space trusses to member loss", Int. J. Space Structures, 9(2), 107-119. https://doi.org/10.1177/026635119400900205
  3. El-Sheikh, A.I. (1995), "Sensitivity of space trusses to member geometric imperfections", Int. J. Space Structures, 10(2), 89-98. https://doi.org/10.1177/026635119501000202
  4. European Committee for Standardisation, CEN/TC 250 Committee (1993), Eurocode 3: Design of steel structures.
  5. Livesley, R.K. (1975), Matrix Methods of Structural Analysis, Pergamon Press, Oxford.
  6. Oran, C. (1973), "Tangent stiffness in space frames", J. Struct. Div., ASCE, 99(6), 987-100l.
  7. Riks, E. (1979), "An incremental approach to the solution of snapping and buckling problems", Int. J. Solids and Structures, 15, 524-551.
  8. Saafan, S.A. (1963), "Nonlinear behaviour of structural plane frames", J. Struct. Div., ASCE, 89(4), 557-579.
  9. Taniguchi, Y., Saka, T. and Tanaka, H. (1995), ''Nonlinear behaviour of space frame structures with laterally loaded members", Int. Symposium on Spatial Structures, Italy, 661-668.
  10. Young, W.C. (1989), Roark's Formulas for Stress and Strain, McGraw-Hill Book Company, London.

Cited by

  1. Parametric Studies on the Behavior of Steel and Composite Space Structures vol.25, pp.3, 2010, https://doi.org/10.1260/0266-3511.25.3.169