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"
Supervisors
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.
Two main novelties are introduced in the grid-shell design context: a polygonal topology and
an automatic method for taking into account the statics of the surface underlying the gridshell.
These features, together with the innate adaptivity of the Voronoi pattern, make this
new remeshing extremely suitable for free-form architecture.
Numerical analyses are carried out to show that free-form Statics Aware Voronoi grid-shells
achieve better structural performances with respect to their quadrilateral competitors. Additionally, numerical results are con rmed and supported through a theoretical framework,
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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