Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges

Designers use exposed glass edges to reach maximum transparency, for example within glass steps, glass beams or glass columns. These applications require mechanical finishing to achieve high optical quality and to compensate for the edge notch that results from the manufacturing process of safety g...

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Autores principales:	Maximilian Möckel, Katharina Lohr, Bernhard Weller
Formato:	article
Lenguaje:	EN
Publicado:	Challenging Glass Conference 2020
Materias:	Edge Tempered Glass Regrinding Laminated Glass Clay industries. Ceramics. Glass TP785-869
Acceso en línea:	https://doaj.org/article/89e9dd1e73a34ff59ea049937ba43301
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spelling	oai:doaj.org-article:89e9dd1e73a34ff59ea049937ba433012021-12-04T05:11:47ZLoad-bearing Behaviour of Laminated Tempered Glass with Reground Edges10.7480/cgc.7.44332589-8019https://doaj.org/article/89e9dd1e73a34ff59ea049937ba433012020-09-01T00:00:00Zhttps://proceedings.challengingglass.com/index.php/cgc/article/view/282https://doaj.org/toc/2589-8019 Designers use exposed glass edges to reach maximum transparency, for example within glass steps, glass beams or glass columns. These applications require mechanical finishing to achieve high optical quality and to compensate for the edge notch that results from the manufacturing process of safety glass. Regrinding of annealed glass is allowed without restrictions. In the case of glass with load bearing functions, tempered glass, heat-strengthened glass or fully tempered glass, is required. However, a risk of premature failure occurs when regrinding tempered glass because of a reduction of the compression zone at the edge. A research project at the Institute of Building Construction, Technische Universität Dresden, examined the impact of regrinding tempered glass on the load-bearing capacity of the glass edge. The study showed the load-bearing capacity decreased depending on the regrinding depth. Specifically, the study revealed a significant difference between the weakening of heat-strengthened glass and fully tempered glass due to the different inherent stress conditions of the different types of glass. Accordingly, regrinding heat-strengthened glass is possible up to a certain limit without critical weakening. To extend the previous studies, the project team conducted component tests on laminated glass beams manufactured from fully tempered glass and heat-strengthened glass with and without reground edges. The examination included tensile bending tests. The experimental results show the influence of regrinding on the load-bearing capacity of the glass components. This paper focusses on the evaluation of the component tests as well as the structural design. Moreover, the results of the pre-tests with single pane glass beams are presented and compared with the component tests. The research results will allow the utilization of structural glass elements with the highest optical quality in the future. Maximilian MöckelKatharina LohrBernhard WellerChallenging Glass ConferencearticleEdgeTempered GlassRegrindingLaminated GlassClay industries. Ceramics. GlassTP785-869ENChallenging Glass Conference Proceedings, Vol 7, Iss 1 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Edge Tempered Glass Regrinding Laminated Glass Clay industries. Ceramics. Glass TP785-869
spellingShingle	Edge Tempered Glass Regrinding Laminated Glass Clay industries. Ceramics. Glass TP785-869 Maximilian Möckel Katharina Lohr Bernhard Weller Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges
description	Designers use exposed glass edges to reach maximum transparency, for example within glass steps, glass beams or glass columns. These applications require mechanical finishing to achieve high optical quality and to compensate for the edge notch that results from the manufacturing process of safety glass. Regrinding of annealed glass is allowed without restrictions. In the case of glass with load bearing functions, tempered glass, heat-strengthened glass or fully tempered glass, is required. However, a risk of premature failure occurs when regrinding tempered glass because of a reduction of the compression zone at the edge. A research project at the Institute of Building Construction, Technische Universität Dresden, examined the impact of regrinding tempered glass on the load-bearing capacity of the glass edge. The study showed the load-bearing capacity decreased depending on the regrinding depth. Specifically, the study revealed a significant difference between the weakening of heat-strengthened glass and fully tempered glass due to the different inherent stress conditions of the different types of glass. Accordingly, regrinding heat-strengthened glass is possible up to a certain limit without critical weakening. To extend the previous studies, the project team conducted component tests on laminated glass beams manufactured from fully tempered glass and heat-strengthened glass with and without reground edges. The examination included tensile bending tests. The experimental results show the influence of regrinding on the load-bearing capacity of the glass components. This paper focusses on the evaluation of the component tests as well as the structural design. Moreover, the results of the pre-tests with single pane glass beams are presented and compared with the component tests. The research results will allow the utilization of structural glass elements with the highest optical quality in the future.
format	article
author	Maximilian Möckel Katharina Lohr Bernhard Weller
author_facet	Maximilian Möckel Katharina Lohr Bernhard Weller
author_sort	Maximilian Möckel
title	Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges
title_short	Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges
title_full	Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges
title_fullStr	Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges
title_full_unstemmed	Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges
title_sort	load-bearing behaviour of laminated tempered glass with reground edges
publisher	Challenging Glass Conference
publishDate	2020
url	https://doaj.org/article/89e9dd1e73a34ff59ea049937ba43301
work_keys_str_mv	AT maximilianmockel loadbearingbehaviouroflaminatedtemperedglasswithregroundedges AT katharinalohr loadbearingbehaviouroflaminatedtemperedglasswithregroundedges AT bernhardweller loadbearingbehaviouroflaminatedtemperedglasswithregroundedges
_version_	1718372867506176000

Load-bearing Behaviour of Laminated Tempered Glass with Reground Edges

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