Because of evident aesthetic, lighting and architectural advantages, glass curtain walls are largely used to clad modern buildings. Since these elements are considered to constitute purely architectural systems, they are essentially designed to resist loads acting orthogonally to the plane of the façade (e.g. wind loads). Contrarily, glass elements are actually largely used as structural elements able to sustain vertical loads (e.g. columns, stiffening fins, beam elements, stairs, etc…), thus to preserve their integrity a buckling verification could assume great im-portance. In order to overcome these problems, in the paper an analytical formulation is pro-posed for the estimation of the buckling resistance of laminated glass panels under in-plane compression. Two different design approaches are taken into account: the first one directly derives from the theory of sandwich panels, whereas the second one is based on the approxi-mate concept of the equivalent thickness. Since the resistance of laminated glass elements di-rectly depends on the level of connection between the glass panes offered by the interlayer, several temperature and time loading conditions are considered. As presented in the paper, the obtained analytical results are in agreement with sophisticated numerical simulations.

Buckling verification of laminated glass panels under in-plane compression

AMADIO, CLAUDIO;BEDON, CHIARA
2011

Abstract

Because of evident aesthetic, lighting and architectural advantages, glass curtain walls are largely used to clad modern buildings. Since these elements are considered to constitute purely architectural systems, they are essentially designed to resist loads acting orthogonally to the plane of the façade (e.g. wind loads). Contrarily, glass elements are actually largely used as structural elements able to sustain vertical loads (e.g. columns, stiffening fins, beam elements, stairs, etc…), thus to preserve their integrity a buckling verification could assume great im-portance. In order to overcome these problems, in the paper an analytical formulation is pro-posed for the estimation of the buckling resistance of laminated glass panels under in-plane compression. Two different design approaches are taken into account: the first one directly derives from the theory of sandwich panels, whereas the second one is based on the approxi-mate concept of the equivalent thickness. Since the resistance of laminated glass elements di-rectly depends on the level of connection between the glass panes offered by the interlayer, several temperature and time loading conditions are considered. As presented in the paper, the obtained analytical results are in agreement with sophisticated numerical simulations.
978-88-89972-23-6
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2831639
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