Flexural Creep Behavior of Full-Scale Laminated Glass Panels
Publication: Journal of Structural Engineering
Volume 143, Issue 10
Abstract
This paper presents experimental and analytical investigations on the creep response of full-scale laminated glass panels. The experimental study comprised relatively long-term (350-h) flexural creep tests on full-scale 3-layer Polyvinyl butyral (PVB)-laminated and 4-layer SentryGlas (SG)-laminated glass panels. The experimental data were fit using Findley’s power law, and the resulting creep deformation predictions were compared with those obtained considering different interlayers’ material models available in the literature, most of which are based on dynamic mechanical analyses (DMA). The results obtained confirm that PVB-laminated glass panels present significantly higher creep deformations than those made of SG. Findley’s power law was able to accurately simulate the deflections of both laminated glass panels measured in the tests. For the PVB panel, long-term (50-year) deflection predictions using the DMA-based material models from the literature were considerably higher than those using Findley’s power law. For the SG panel, although an overall better agreement was observed between Findley’s power law and deflection predictions from material models available in the literature, significant differences were still encountered, namely for the DMA-based material model.
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Acknowledgments
The authors wish to acknowledge FCT and ICIST/CERIS for funding this research and MARTIFER and Dr. Sérgio Cruz for supplying the laminated glass panels and for technical support. The first author also wishes to thank FCT for financial support through his Ph.D. scholarship SFRH/BD/80234/2011.
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Information & Authors
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Published In
Journal of Structural Engineering
Volume 143 • Issue 10 • October 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Aug 31, 2016
Accepted: Mar 7, 2017
Published online: Jul 27, 2017
Published in print: Oct 1, 2017
Discussion open until: Dec 27, 2017
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