Steel and Composite Structures

  • 제3권4호
  • /
  • Pages.277-287
  • /
  • 2003
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The optimisation method of the elastic-plastic spatial grid structures

  • Karczewski, Jan (The Building Structures Institute, Warsaw University of Technology)
  • 투고 : 2002.11.21
  • 심사 : 2003.08.01
  • 발행 : 2003.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

The low boundary of load carrying capacity of the elastic-plastic spatial grid structures depend on numerous values and their variability assumed in designing process. Analysed influence all this values in searching for optimal variant of the structure lead to too great problem even taking into consideration actual computational power we have in disposal. Therefore one can take only a few values which have greatest influence on the optimal choice. In optimal analysis of the elastic-plastic spatial grid structures the previously proposed method with subsequent modification (Karczewski 1980), (Karczewski, Barszcz and Donten 1996), (Karczewski and Donten 2001) as well as computer program which was worked out by Donten K. to make possible practical utilisation this method was employed. The paper deal with evaluation of influence dimensions of particular values for choice of optimal variant of the structure. One among this values is distribution of the struts in the structure.

키워드

참고문헌

  1. Boutros M.K. (1991), "Nonlinear SDOF element for hysteretic analysis of pinned braces", J. of Ing. Mech., ASCE, 117(5), 941-953.
  2. Karczewski, J. (1980), "The limit load of the space trusses", Arch.Civ. Eng., 26(1), 247-248.
  3. Karczewski, J.A. and Barszcz, A. (1988), "Badania d oswiadczalne spreysto -plastycznych pretow kratownicy przestrzennej", Arch. In z. Lad., 34, 3, Poland, Warsaw, 341-357 (in Polish).
  4. Karczewski, A. and Barszcz, A. (1995), "A large deflections analysis of an elastic-plastic strut axially loaded in a cyclically variable manner", Arch. In z. Lad., XLI, 2, Poland, Warsaw, 244-265.
  5. Karczewski, J. and Others (1976), "PN-76/B-03200 Konstrukcje stalowe - obliczenia statyczne i projektowanie", PKNiM, Poland, Warsaw (in Polish).
  6. Karczewski, J.A. and Paczkowski, W.M. (1982), "Optymalizacja przekryc strukturalnych", Edyt. COIB, 164, Poland, Warsaw, 1-108 (in Polish).
  7. Karczewski, J.A. and Barszcz, A. (1988), "Post-critical analysis of the space truss member subjected to alternating axial loading", in Stability of Steel Structures, part B, Publishing House of Hungarian Academy of Sciences, 1988, Budapest, Hungary, 557-563.
  8. Karczewski, J.A and Barszcz, A. (1989), "Behaviour of the space structures member subjected to cyclically variable loading", Proc. IASS World Congress, 5, Madrid, Spain.
  9. Karczewski, J.A. and Barszcz, A. (1990), "Elastic-plastic model of the space structure member axially loaded in cyclically variable manner", Proc. Int. Coll. on Stab. of Steel Struc., 1, Budapest, Hungary, June, 1/45-1/52.
  10. Karczewski, J.A., Niczyj, J. and Paczkowski, W. (1991), "Discrete optimisation of the space truss being controlled by an expert system", Proc. IASS Symp. "Spatial Structures at the Turn of the Millenium", Copenhagen, Denmark, 191-197.
  11. Karczewski, J. (1993), "Influence of the assumed options of the eliminated struts strengthening on the maximum load bearing capacity of the elastic-plastic spatial grid structures", Proc. IASS Symposium, Istambul, Turkey, 501-509.
  12. Karczewski, J., Barszcz, A. and Donten, K. (1996), "Elastic-plastic analysis of the spatial grid structures", Proc. of Asia-Pacific Conference, Bejing, 336-343.
  13. Karczewski, J.A. (1997), "Improvement of the rigidity distribution in an elastic-plastic spatial grid structure", Proc. IASS International Colloquium on Computation of Shell & Spatial Structure, Taipei, Taiwan, 35-40.
  14. Karczewski, J.A. (1997), "Improvement of the rigidity distribution in an elastic-plastic spatial grid structures - influence of the chosen parameters", Proc. IASS International Symposium on Shell & Spatial Structures, Design, Constructions, Performance & Economics, Singapore.
  15. Karczewski, J. and Donten, K. (2001), "The limit load and deformability of the space truss subjected to the uniform temperature field", Proc. of 01'IASS International Symposium, Nagoya, Japan, TP 102.
  16. Nonaka, T. (1977), "An analysis for large deformation of an elastic-plastic bar under repeated axial loading", Int. J. Mech. Sci., 10(9, 10 and 11), 619-627.