Interaction of member and node instability in the single layer reticulated shell
| Author(s): |
Mario Uros
Damir Lazarević Petra Gidak |
|---|---|
| Medium: | conference paper |
| Language(s): | English |
| Conference: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
| Published in: | IABSE-IASS 2011 London Symposium Report |
| Year: | 2011 |
| Abstract: |
Damir LAZAREVIĆProfessor Faculty of Civil Engineering Univ. of Zagreb, Croatia damir@grad.hr Damir Lazarević, born 1967, received his doctoral degree from the Univ. of Zagreb, Croatia in 2000. Petra GIDAKResearch assistant Faculty of Civil Engineering Univ. of Zagreb, Croatia pgidak@grad.hr Petra Gidak, born 1980, received his civil engineering degree from the Univ. of Zagreb, Croatia in 2003. This paper deals with stability of single-layer lattice dome. The local instability phenomena caused by member or node instability are fairy known. This paper analyses the interaction of these two forms with presence of geometrical imperfections, including influence on stability behaviour. Spatial model used to describe these phenomena consists of six pin-jointed elastic members shaped as a regular pyramid and supported by horizontal elastic springs. Using this model, member and node equilibrium curves with influence of geometrical imperfections are separately produced. In addition, the interaction of buckling modes is detected and the corresponding postbuckling curves are produced. Finally, the imperfection sensitivity surface is elaborated and some general conclusions are made. |
| Keywords: |
imperfection non-linear analyses reticulated single layer dome compound buckling member instability node instability
|
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data sheet - Reference-ID
10065256 - Published on:
03/10/2011 - Last updated on:
05/07/2021
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