Enhanced effective thickness model for buckling of LG beams with different boundary conditions

D’Ambrosio, Gianmaria; Galuppi, Laura

doi:10.1007/s40940-019-00116-3

Cited by 13 publications

(3 citation statements)

References 9 publications

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“…The Enhanced Effective Thickness (EET) method proposed by Galuppi et al can be utilized to calculate the laminated stiffness for both lateral stiffness (Galuppi et al, 2014 andGaluppi et al 2013), torsional stiffness (Galuppi et al, 2020), and elements undergoing compressive buckling (D'Ambrosio et al, 2020). The EET equations are here reformatted, showing that they can take a common form for 1dimensional (beam) bending and torsion.…”

Section: Elastic Critical Buckling Moment For Laminated Beamsmentioning

confidence: 99%

Design and Stability of Laminated Glass Beams and Cantilevers with Continuous Lateral Silicone Restraint

Green,

Bedon,

Galuppi

et al. 2024

CGC

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The stability of monolithic glass beams is reasonably well defined; as an elastic material it behaves in a similar manner to other elastic materials such as steel, for which there are many equations of different forms which give similar results. Special care is required for continuous restraint to the tension ﬂange. Equations presented in Australian Standard AS1288 Glass in Buildings – Selection and Installation have been used successfully for many years for monolithic fins when used with the strength model of AS1288 but require a more comprehensive approach when using laminated fins and/or strength models that allow higher levels of stress. A review of equations for cantilevers results in a wider range of approaches with significant variance between the outcomes of various published steel and glass standards. AS1288 has been used as the default standard for stability of glass fins, however for cantilevers it appears to have a misprint which has existed for decades. This paper presents strategies for determining the moment capacity of beams and cantilevers made of laminated glass with continuous flexible buckling restraints, such as structural silicone, which have initial imperfections and a known design strength capacity. Where multiple wave lengths form, the warping stiffness may contribute and formulations for rectangles are presented. The accuracy and validity of the approach is also assessed by means of comparisons with the outcomes of Finite Element numerical analyses.

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Section: Elastic Critical Buckling Moment For Laminated Beamsmentioning

confidence: 99%

Design and Stability of Laminated Glass Beams and Cantilevers with Continuous Lateral Silicone Restraint

Green,

Bedon,

Galuppi

et al. 2024

CGC

View full text Add to dashboard Cite

show abstract

“…It is clear then that there is a need for greater understanding of the behaviour of multi-ply laminated glass beams subject to in-plane loads. Some limited studies have been undertaken by others to produce more reliable design methods for multi-layered laminated glass subject to LTB, notably the proposed 'Enhanced Effective Thickness' method [3] and the proposed formulations for effective stiffness properties developed by [4]. Buckling curves similar to those used for steel design in the European design standard EN 1993 [5] have also been proposed by [6] and [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of 3-ply laminated glass beams subject to in-plane loads

2021

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“…Glass columns with more geometrical complexity are also investigated in the literature, including also T-or X-shaped columns (Aiello et al, 2011) hollow-box columns (Kalamar et al, 2016), tubular columns (Kamarudin et al, 2018) or bundled columns (Oikonomopoulou et al, 2017). A recent alternative formulation for the equivalent thickness of laminated glass members in compression has been presented in (D'Ambrosio and Galuppi, 2020).…”

Section: Introductionmentioning

confidence: 99%

Uncertainty Assessment for the Buckling Analysis of Glass Columns with Random Parameters

Momeni¹,

Bedon²

2020

International Journal of Structural Glass and Advanced Material

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Load-bearing elements composed of glass, as known, are often susceptible to buckling collapse mechanisms. This intrinsic characteristic (and thus potential limitation for design) typically derives from the use of relatively small thicknesses to cover large spans and surfaces, thus resulting in a multitude of columns, beams, or plates that are characterized by high slenderness. In the literature, accordingly, several and design propositions support of the definition of efficient calculation models to capture the typical buckling response of glass elements variably shaped, sized, restrained and loaded. In this study, the attention is focused on the buckling analysis of glass columns and on the assessment of uncertainties due to input random parameters. With the support of finite element numerical models, a total of 800 glass columns are investigated, by accounting for stochastic variations in the geometry (size and thickness), modulus of elasticity and density of glass, maximum amplitude of the imposed initial imperfection, material type. Based on the Monte Carlo simulation method, the final result takes the form of 2400 simulations, where the postprocessing analysis is spent on the derivation of empirical formulations for the correlation of the relevant buckling capacity indicators. From the global out-of-plane bending analysis, the input random parameters are observed to affect severely both long and short columns with different flexural stiffness. Besides, a stable linear correlation is found for some influencing indicators. The attention is thus focused on the sensitivity analysis of critical buckling load, ultimate failure configuration, deflection at collapse, buckling reduction coefficient.

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Enhanced effective thickness model for buckling of LG beams with different boundary conditions

Cited by 13 publications

References 9 publications

Design and Stability of Laminated Glass Beams and Cantilevers with Continuous Lateral Silicone Restraint

Design and Stability of Laminated Glass Beams and Cantilevers with Continuous Lateral Silicone Restraint

Experimental study of 3-ply laminated glass beams subject to in-plane loads

Uncertainty Assessment for the Buckling Analysis of Glass Columns with Random Parameters

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