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Non-linear stability analysis of a hybrid barrel vault roof
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 Title & Authors
Non-linear stability analysis of a hybrid barrel vault roof
Cai, Jianguo; Zhou, Ya; Xu, Yixiang; Feng, Jian;
 Abstract
This paper focuses on the buckling capacity of a hybrid grid shell. The eigenvalue buckling, geometrical non-linear elastic buckling and elasto-plastic buckling analyses of the hybrid structure were carried out. Then the influences of the shape and scale of imperfections on the elasto-plastic buckling loads were discussed. Also, the effects of different structural parameters, such as the rise-to-span ratio, beam section, area and pre-stress of cables and boundary conditions, on the failure load were investigated. Based on the comparison between elastic and elasto-plastic buckling loads, the effect of material non-linearity on the stability of the hybrid barrel vault is found significant. Furthermore, the stability of a hybrid barrel vault is sensitive to the anti-symmetrical distribution of loads. It is also shown that the structures are highly imperfection sensitive which can greatly reduce their failure loads. The results also show that the support conditions pose significant effect on the elasto-plastic buckling load of a perfect hybrid structure.
 Keywords
stability;non-linear;hybrid structure;cable;elasto-plastic;failure load;
 Language
English
 Cited by
1.
Dynamic characteristics and wind-induced vibration coefficients of purlin-sheet roofs,;;;

Steel and Composite Structures, 2016. vol.22. 5, pp.1039-1054 crossref(new window)
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Detection of member overall buckling in civil space grid structures based on deviation in normal strain along the member, Engineering Structures, 2017, 131, 599  crossref(new windwow)
2.
Failure modes and loading bearing capacity of corrugated steel roofs connected by standing seam clips, International Journal of Steel Structures, 2017, 17, 4, 1341  crossref(new windwow)
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