ETD system

Electronic theses and dissertations repository

 

Tesi etd-03052015-154257


Thesis type
Tesi di dottorato di ricerca
Author
TONELLI, DAVIDE
email address
davide.tonelli86@gmail.com
URN
etd-03052015-154257
Title
Statics Aware Voronoi Grid-Shells
Settore scientifico disciplinare
ICAR/09
Corso di studi
INGEGNERIA "L. DA VINCI"
Commissione
tutor Prof. Froli, Maurizio
Parole chiave
  • equivalent sti ffness
  • regular tilings
  • buckling
  • imperfection sensitivity
  • geometrically non-linear analysis
  • Grid-shells
  • geometry
  • metric
  • polygonal
  • hex-dominant
  • Voronoi
  • connectivity
  • topology
  • free-form
  • surface
  • skin
  • limit analysis
  • incremental load test
  • mock-up
  • equivalent thickness
Data inizio appello
06/04/2015;
Consultabilità
completa
Riassunto analitico
This dissertation presents the Statics Aware Voronoi remeshing, a novel pattern for generating innovative free-form grid-shells that are both aesthetically pleasing and structurally sound.<br>Two main novelties are introduced in the grid-shell design context: a polygonal topology and<br>an automatic method for taking into account the statics of the surface underlying the gridshell.<br>These features, together with the innate adaptivity of the Voronoi pattern, make this<br>new remeshing extremely suitable for free-form architecture.<br>Numerical analyses are carried out to show that free-form Statics Aware Voronoi grid-shells<br>achieve better structural performances with respect to their quadrilateral competitors. Additionally, numerical results are con rmed and supported through a theoretical framework,<br>instituted upon the old-time concept of equivalent continuum. Eventually, a physically built mock-up practically demonstrates the feasibility of the new Statics Aware Voronoi Grid-Shells and caters for the calibration of numerical models.
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