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Postbuckling behavior of flexibly connected single layer steel domes.
- Source :
-
Journal of Constructional Steel Research . Nov2015, Vol. 114, p136-145. 10p. - Publication Year :
- 2015
-
Abstract
- In the construction of single layer domes and vaulted structures manufactured ball-node type connections are widely used. These ball-nodes deform due to the action of a three-dimensional state of stress while offering their resistance. These deformations result in a loss of connection stiffness, which influences the overall stability of these domes, and is usually ignored in the analysis. This work presents an investigation on the effect of ball-node deformations in the inelastic post-buckling behavior of domes and vaulted structures. A model for the load-deformation properties of the ball-nodes has been proposed in this study, in the lines of EC3-8. This connection flexibility model is integrated into a corotated–updated Lagrangian finite element formulation. Results for single layer domes and a braced barrel vault are presented. Although the present investigation deals with ball nodes only, the computational framework is still relevant for other type of connections of space structures, with modifications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0143974X
- Volume :
- 114
- Database :
- Academic Search Index
- Journal :
- Journal of Constructional Steel Research
- Publication Type :
- Academic Journal
- Accession number :
- 110215947
- Full Text :
- https://doi.org/10.1016/j.jcsr.2015.07.016