Buckling analysis of reticulated shells

E. Dulácska, L. Kollar

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The paper presents a comparatively simple method for assessing the global stability of single- and double-layer reticulated shells, assuming rigid connections between the bars. With knowledge of the rigidities of the reticulated shell, a statically equivalent replacement solid shell is established, the buckling of which is extensively treated in the literature. The critical load of this replacement continuum is determined by taking into account the influences of geometric imperfections (eccentricity), plasticity, (local) bar buckling and - in the case of double-layer reticulated shells - of transverse shear deformation. All these are presented in detail for isotropic shells, but the method can also be used for anisotropic ones. Finally, for dimensioning reticulated shells, a unique safety factor based on the theory of probabilities is recommended, which depends on the uncertainties of the various effects. Numerical values for the safety factor are also given. The method proposed provides a transition from shells to plane plates, from surface to bar structures, and from reticulated to solid shells, thus ensuring identical safety levels for all these structures.

Original languageEnglish
Pages (from-to)195-203
Number of pages9
JournalInternational Journal of Space Structures
Volume15
Issue number3-4
DOIs
Publication statusPublished - 2000

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Buckling
Safety factor
Rigidity
Shear deformation
Plasticity
Defects
Shell
Safety
Uncertainty

ASJC Scopus subject areas

  • Architecture

Cite this

Buckling analysis of reticulated shells. / Dulácska, E.; Kollar, L.

In: International Journal of Space Structures, Vol. 15, No. 3-4, 2000, p. 195-203.

Research output: Contribution to journalArticle

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