Conceptual design and FEM structural response of a suspended glass sphere made of reinforced curved polygonal panels

Maurizio Froli, Francesco Laccone
Glass Structures & Engineering - 2020
Download the publication : Froli-Laccone2020_Article_ConceptualDesignAndFEMStructur_compressed.pdf [1Mo]  

The paper introduces a novel concept for structural glass shells that is based on the mechanical coupling of double curved heat-bent glass panels and a wire frame mesh, which constitutes a grid of unbonded edge-reinforcement. Additionally, this grid has the purpose of providing redundancy. The panels have load-bearing function, they are clamped at the vertices and dry-assembled. The main novelty lies in the use of polygonal curved panelswith a nodal force transfer mechanism. This concept has been validated on an illustrative design case of a 6 m-diameter suspended glass sphere, in which regular pentagonal and hexagonal spherical panels are employed. The good strength and stiffness achieved for this structure is demonstrated by means of local and global FE models. Another fundamental feature of the concept is that the reinforcement grid provides residual strength in the extreme scenarios in which all panels are completely failed. A quantitative measure of redundancy is obtained by comparing this scenario with the ULS.

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BibTex references

@Article\{FL20,
  author       = "Froli, Maurizio and Laccone, Francesco",
  title        = "Conceptual design and FEM structural response of a suspended glass sphere made of reinforced curved polygonal panels",
  journal      = "Glass Structures \& Engineering",
  year         = "2020",
  keywords     = "Glass shell  Structural glass  Curved glass  Heat bent  Steel reinforcement  Truncated icosahedron  Finite element analysis",
  url          = "http://vcg.isti.cnr.it/Publications/2020/FL20"
}

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