Abstract
Laminated glass, made by bonding glass plies together through polymeric interlayers, is a redundant system that allows for stress redistribution after partial failure. This study analyzes how the structural safety level of laminates made by two or three plies of annealed glass varies with the ratio between the thicknesses of the layers and their placement in the package. The probability of failure of laminated glass elements, in which the layers are arranged in different order, is statistically analyzed under gust wind loads, accounting for all the potential sequences of breakage for the plies. The gain obtainable from a tailored composition is quantitatively estimated through specific safety factors to be used in semiprobabilistic (Level I) design and calibrated through comparison in paradigmatic case studies with full-probabilistic (Level III) methods. Optimal laminated packages are thus determined as a function of the target probability of failure classified according to four distinct classes of consequences for malfunction or failure.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
Gianni Royer Carfagni acknowledges the partial support of the Italian Dipartimento della Protezione Civile under Project ReLUIS-DPC 2019–2021.
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Published In
Journal of Engineering Mechanics
Volume 146 • Issue 7 • July 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Nov 28, 2019
Accepted: Feb 18, 2020
Published online: Apr 29, 2020
Published in print: Jul 1, 2020
Discussion open until: Sep 29, 2020
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