Engineering Mechanics

Proceedings Vol. 24 (2018)

ENGINEERING MECHANICS 2018

Copyright © 2018 Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague

 

Hána T., Eliášová M., Sokol Z.
pages 285 - 288, full text

Looking at a current architecture, we may notice many examples of glass load bearing structures such as beams, panes, balustrades, columns or even stairs. These elements are mostly made of glass panels laminated together by polymeric interlayer. Laminated glass is a suitable structural element because of its residual load bearing capacity when overloaded. Glass fragments stay adhered to the interlayer and do not fall down potentially causing an injury. Objectively, there is still an overall lack of knowledge in task of shear forces transfer between the panels profoundly preventing more extended use of laminated glass in practice. Furthermore, glass as a structural material exhibits a wide range of tensile strength which becomes a crucial fact when designing laminated glass panels. Civil engineers currently tend to design laminated glass members on the safe side regardless the individual plies interaction. This paper is focused on double laminated glass panels in four point bending test - particularly normal stress distribution along the critical cross section, maximum tensile strength of different glass types and residual load bearing capacity. Experimentally verified tensile strength of different glass types and interlayers stiffness help engineers to design safer and more economical laminated glass constructions.

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