Articolo in rivista, 2020, ENG, 10.1007/s40940-020-00130-w

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

Froli M; Laccone F.

Department of Energy, Systems, Territory and Construction, University of Pisa, Pisa, Italy; CNR-ISTI, Pisa, Italy

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.

Glass Structures & Engineering 6 , pp. 287–308

Keywords

Glass shell, Structural glass, Curved glass, Heat bent, Steel reinforcement, Truncated icosahedron, Finite element analysis

CNR authors

Laccone Francesco

CNR institutes

ISTI – Istituto di scienza e tecnologie dell'informazione "Alessandro Faedo"

ID: 430574

Year: 2020

Type: Articolo in rivista

Creation: 2020-09-10 12:06:27.000

Last update: 2023-06-29 17:39:43.000

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:430574

DOI: 10.1007/s40940-020-00130-w

Scopus: 2-s2.0-85090459144

ISI Web of Science (WOS): 000567785700001