• Login
    View Item 
    •   Eurographics DL Home
    • Graphics Dissertation Online
    • 2019
    • View Item
    •   Eurographics DL Home
    • Graphics Dissertation Online
    • 2019
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Quad Meshes as Optimized Architectural Freeform Structures

    Thumbnail
    View/Open
    davide_pellis_thesis.pdf (42.56Mb)
    Date
    2019-10
    Author
    Pellis, Davide
    Item/paper (currently) not available via TIB Hannover.
    Metadata
    Show full item record
    Abstract
    This thesis tackles the design of freeform surface-like and load-bearing structures realized with cladding panels and supported by a framework substructure, often called gridshells. The actual fabrication of freeform gridshells is a challenging task, and easily leads to unsustainable costs. A well known strategy to realize a gridshell is to use as layout a so-called principal mesh. This is a quadrilateral mesh whose edges follow the principal curvature directions of a continuous surface. We achieve in this way flat cladding panels and a substructure with simplified connections. This thesis shows that quadrilateral meshes, besides allowing manufacturing simplification, are also optimal solutions both for static performance and smooth visual appearance. In particular, we show that the best static performance is achieved for quad meshes discretizing membranes along principal stress lines, and we get an absolute minimum on such membranes where the integral of absolute principal stresses is minimal. We also show that the best smooth visual appearance is achieved for principal meshes; the absolute minimum is now reached for principal meshes discretizing surfaces where the integral of absolute principal curvatures is minimal. Therefore, from membranes where stress and curvature directions are aligned, and where the total absolute stress is minimal, we can extract principal meshes with the best static performance and with optimal visual appearance. We present then computational tools for the design of such highly efficient gridshells.
    URI
    https://diglib.eg.org:443/handle/10.2312/2632960
    Collections
    • 2019

    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA
     

     

    Browse

    All of Eurographics DLCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    BibTeX | TOC

    Create BibTeX Create Table of Contents

    Eurographics Association copyright © 2013 - 2023 
    Send Feedback | Contact - Imprint | Data Privacy Policy | Disable Google Analytics
    Theme by @mire NV
    System hosted at  Graz University of Technology.
    TUGFhA