Structural Performance of Double Laminated Glass Panels with EVA and PVB Interlayer in Four-Point Bending Tests
Journal Title: International Journal of Structural Glass and Advanced Materials Research - Year 2018, Vol 2, Issue 1
Abstract
Many examples of glass loadbearing structures such as handrails, panes, beams and columns can be found in modern architecture. Most of these elements are made of laminated glass panels. There is a general lack of knowledge about the transfer of shear forces between the glass plies in perpendicularly-loaded laminated panels. This transfer depends significantly on the stiffness of the polymeric interlayer, which is time-dependent and temperature-dependent. There are several computational methods for the design of laminated glass that take the shear coupling of the glass plies into account, e.g. analytical methods, numerical modeling and also the draft of European code. These methods need to be verified experimentally. This paper reports on rectangular double-laminated glass panels in a shortterm displacement controlled four-point bending test with an EVA and with a PVB interlayer under a constant temperature. These tests were performed at CTU in Prague. Our experimental results show that panels with an EVA interlayer had greater bending stiffness than panels laminated with PVB and achieved higher ultimate load values. The experimental data were further compared with simplified analytical methods, such as the European draft prEN 16612 and the Enhanced Effective Thickness approach and also a numerical FEM model. Numerical and EET methods results were in good agreement with the experimental data. The way in which the specimens broke was a characteristic feature of laminated glass. The shards remained attached to the interlayer, proving that laminated glass panels can be used safely above the heads of users of the structure. Simplified methods and numerical models validated by experimental tests on perpendicularly-loaded laminated glass panels enable these structures to be designed safely and economically for practical uses.
Authors and Affiliations
Tomáš Hána, Martina Eliášová and Zdeněk Sokol
Keywords
Related Articles
- EP ID EP40372
- DOI 10.3844/sgamrsp.2018.164.177
- Views 217
- Downloads 0
Reliability of Selected Critical Infrastructure Elements
The paper brings an overview of aspect of reliability of selected critical infrastructure elements. Firstly critical infrastructure elements are defined. Extreme loading of such elements and the normative standards are m...
Transformable Curved Thin Glass Greenhouse.
The use of new generation thin, lightweight and damage-resistant glass, originally conceived for electronic displays, is being very recently proposed for structural applications, in particular for adaptive and movable sk...
Special Issue on Current Challenges in Materials Design
This special issue of the International Journal of Structural Glass and Advanced Materials Research contains new contributions and the extended version of some selected papers presented in the 6th International Workshop...
Infrared Thermography for the Characterization of Painted Vaults of Historic Masonry Buildings
The infrared thermography is a type of non-destructive investigation which can find interesting application in acquiring information about the structural features of ancient masonry buildings. In this case, in fact, the...
About Glassy Amorphous Metal Injection
The paper aims to present studies on the melt flow, melting and rheology of melting in a super-cooled metastable liquid metal, which is injection molded, of the Zr44-Ti11-Cu10-Ni10-Be25 alloy, which can induce selective...