Concept and cable-tensioning optimization of post-tensioned shells made of structural glass

FORM and FORCE, IASS Symposium 2019, Structural Membranes 2019, page 2133-2140 - oct 2019
Download the publication : IASS2019GlassShells_Preprint.pdf [936Ko]  

Shells made of structural glass are charming objects from both the aesthetics and the engineering point of view. However, they pose two signicant challenges: the rst one is to assure adequate safety and redundancy concerning possible global collapse; the second one is to guarantee the economy for replacing collapsed components. To address both requirements, this research explores a novel concept where triangular panels of structural glass are both post-tensioned and reinforced to create 3D free-form systems. Hence, the ligree steel truss, made of edges reinforcements, is sized in performance-based perspective to bear at least the weight of all panels in the occurrence of simultaneous cracks (worst-case scenario). The panels are post-tensioned using a set of edge-aligned cables that add benecial compressive stress on the surface. The cable placement and pre-loads are optimized to minimize the tensile stress acting on the shell and match the manufacturing constraints. These shells optimize material usage by providing not only a transparent and fascinating building separation but also load-bearing capabilities. Visual and structural lightness are improved to grid shell competitors.

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BibTex references

@InProceedings\{LMFCP19a,
  author       = "Laccone, Francesco and Malomo, Luigi and Froli, Maurizio and Cignoni, Paolo and Pietroni, Nico",
  title        = "Concept and cable-tensioning optimization of post-tensioned shells made of structural glass",
  booktitle    = "FORM and FORCE, IASS Symposium 2019, Structural Membranes 2019",
  pages        = "2133-2140",
  month        = "oct",
  year         = "2019",
  editor       = "Carlos L\'azaro, Kai-Uwe Bletzinger, Eugenio O\~{n}ate",
  publisher    = "International Centre for Numerical Methods in Engineering (CIMNE)",
  organization = "IASS",
  url          = "http://vcg.isti.cnr.it/Publications/2019/LMFCP19a"
}

Other publications in the database

» Francesco Laccone
» Luigi Malomo
» Maurizio Froli
» Paolo Cignoni
» Nico Pietroni