Low cost double curvature: Geometrical and structural potentials of rectangular, cold-bent glass construction

Philipp Eversmann, Eike Schling, André Ihde, Christian Louter

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review


    The realization of doubly curved façades often requires large investments in fabrication equipment and produces additional waste through subtractive fabrication processes and non-reusable molds. In glass construction, elastic bending techniques can be used for small curvatures. This paper continues previous research of the authors on bending rectangular glass elements into irregularly curved panels. First, we analyze the stresses occurring in cold bent glass during assembly, thus defining a particle-spring model which is able to compute approximate stresses in real-time during the bending procedure. In a second step, we compare the structural performance of the bent glass with that of flat panels using FE-analysis. Finally, we illustrate the implementations on multi-panel façade layouts. We analyze the dependencies between curvature, gap-tolerance and panelization. We present a method to minimize gap-tolerances by optimizing the distribution of surface curvature. Our results highlight the structural and geometrical potentials and possible applications for curved glass construction.
    Original languageEnglish
    Title of host publicationProceedings of the IASS Annual Symposium 2016
    Subtitle of host publicationSpatial Structures in the 21st Century
    EditorsK. Kawaguchi, M. Ohsaki, T. Takeuchi
    Number of pages10
    Publication statusPublished - 2016
    EventIASS Annual Symposium 2016: Spatial Structures in the 21st Century - University of Tokyo, Tokyo, Japan
    Duration: 26 Sep 201630 Sep 2016


    ConferenceIASS Annual Symposium 2016
    Abbreviated titleIASS2016
    Internet address


    • glass
    • cold-bending
    • FE-analysis
    • particle-spring model
    • optimization


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