Structural assessment and lateral-torsional buckling design of glass beams restrained by continuous sealant joints

C. Bedon, J.L.I.F. Belis, C. Amadio

    Research output: Contribution to journalArticleAcademicpeer-review

    29 Citations (Scopus)

    Abstract

    Glass is largely used in practice as a structural material, e.g. as beam and plate elements able to carry loads. Their structural interaction is often provided by mechanical connections, although recent trends are moving toward the minimization of metal components and the primary involvement of adhesives or silicone structural joints working as partially rigid continuous restraints.

    In this work, the lateral–torsional buckling (LTB) behavior of glass beams laterally restrained by continuous silicone joints is assessed. Based on earlier contributions of literature and extended parametric Finite-Element (FE) numerical investigations, closed-form solutions are suggested for the estimation of their Euler’s critical buckling moment under various loading conditions. Finally, by means of more detailed incremental nonlinear analyses, their global LTB response is also investigated, to assess their sensitivity to initial geometrical imperfections as well as their prevalent LTB failure mechanism. In conclusion, a generalized buckling design curve able to account for the structural contribution provided by structural silicone joints is proposed for a rational and conservative LTB verification.
    Original languageEnglish
    Pages (from-to)214-229
    JournalEngineering Structures
    Volume102
    DOIs
    Publication statusPublished - 1 Nov 2015

    Keywords

    • Lateral torsional buckling (LTB)
    • Glass beams
    • Analytical models
    • Finite-element modeling
    • Structural silicone joints
    • Composite sections
    • Incremental buckling analysis
    • Imperfections
    • Buckling design methods
    • Buckling curve

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