1 Structural assessment and lateral-torsional buckling design of glass beams 1 restrained by continuous sealant joints 2 Chiara Bedon 1 *, Jan Belis 2 , Claudio Amadio 3 3 4 Abstract 5 Glass is largely used in practice as a structural material, e.g. as beam and plate elements able to carry loads. 6 Their structural interaction is often provided by mechanical connections, although recent trends are moving 7 towards the minimization of metal components and the primary involvement of adhesives or silicone 8 structural joints working as partially rigid continuous restraints. 9 In this work, the lateral-torsional buckling (LTB) behavior of glass beams laterally restrained by continuous 10 silicone joints is assessed. Based on earlier contributions of literature and extended parametric Finite- 11 Element (FE) numerical investigations, closed-form solutions are suggested for the estimation of their 12 13 incremental nonlinear analyses, their global LTB response is also investigated, to assess their sensitivity to 14 initial geometrical imperfections as well as their prevalent LTB failure mechanism. In conclusion, a 15 generalized buckling design curve able to account for the structural contribution provided by structural 16 silicone joints is proposed for a rational and conservative LTB verification. 17 18 Keywords: lateral torsional buckling (LTB); glass beams; analytical models; finite-element modeling; 19 structural silicone joints; composite sections; incremental buckling analysis; imperfections; buckling design 20 methods; buckling curve. 21 22 23 1 University of Trieste, Department of Engineering and Architecture, Piazzale Europa 1, 34127 Trieste, Italy. (*) Corresponding author. Email: [email protected] . 2 Ghent University, Laboratory for research on structural models LMO, Technologiepark-Zwijnaarde 904, B-9052 Ghent, Belgium. 3 University of Trieste, Department of Engineering and Architecture, Piazzale Europa 1, 34127 Trieste, Italy.
Structural assessment and lateral-torsional buckling design of glass beams restrained by continuous sealant joints
May 30, 2023
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