logo SBA

ETD

Digital archive of theses discussed at the University of Pisa

 

Thesis etd-03052015-154257


Thesis type
Tesi di dottorato di ricerca
Author
TONELLI, DAVIDE
email address
davide.tonelli86@gmail.com
URN
etd-03052015-154257
Thesis title
Statics Aware Voronoi Grid-Shells
Academic discipline
ICAR/09
Course of study
INGEGNERIA "L. DA VINCI"
Supervisors
tutor Prof. Froli, Maurizio
Keywords
  • 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
Graduation session start date
06/04/2015
Availability
Full
Summary
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.
File