GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads

This paper presents a novel concept for improving the long-term load-bearing performance of reinforced glass beams (hybrid beams). The concept of reinforcing glass beams using steel or other (ductile) materials have been investigated over the last couple of decades utilising the fracture pattern o...

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Autores principales:	Jens H. Nielsen, Bjarni G. Jónsson, Chiara Bedon
Formato:	article
Lenguaje:	EN
Publicado:	Challenging Glass Conference 2020
Materias:	Hybrid glass beams PVB interlayer properties Long term loading Static fatigue Tempered glass Clay industries. Ceramics. Glass TP785-869
Acceso en línea:	https://doaj.org/article/dd749b857e51477daa9757e62e9d5e5f
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spelling	oai:doaj.org-article:dd749b857e51477daa9757e62e9d5e5f2021-12-05T05:12:56ZGS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads2589-8019https://doaj.org/article/dd749b857e51477daa9757e62e9d5e5f2020-09-01T00:00:00Zhttps://proceedings.challengingglass.com/index.php/cgc/article/view/336https://doaj.org/toc/2589-8019 This paper presents a novel concept for improving the long-term load-bearing performance of reinforced glass beams (hybrid beams). The concept of reinforcing glass beams using steel or other (ductile) materials have been investigated over the last couple of decades utilising the fracture pattern of annealed glass to ensure a ductile behaviour. However, it is well known that the long-term strength of annealed glass is rather low due to so-called static fatigue leading to a relatively poor performance for most hybrid-beams. As an example will a hybrid beam based on annealed glass exposed to 26 MPa permanent load fail in less than a day according to a European code. The novel concept suggested here utilises a combination of annealed and fully tempered glass in an arrangement where the tempered glass carries the long-term loading whereas short-term loading is carried by the reinforced annealed glass. The concept is based on the relaxation of shear stresses in the PVB (polyvinyl butyral) interlayer, material properties of PVB from different authors have been compared, and a set of average parameters have been suggested. The main purpose of the paper is to introduce the concepts and mechanisms of such beams and provide a basis for further optimisation. Jens H. NielsenBjarni G. JónssonChiara BedonChallenging Glass ConferencearticleHybrid glass beamsPVB interlayer propertiesLong term loadingStatic fatigueTempered glassClay industries. Ceramics. GlassTP785-869ENChallenging Glass Conference Proceedings, Vol 7, Iss 1 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Hybrid glass beams PVB interlayer properties Long term loading Static fatigue Tempered glass Clay industries. Ceramics. Glass TP785-869
spellingShingle	Hybrid glass beams PVB interlayer properties Long term loading Static fatigue Tempered glass Clay industries. Ceramics. Glass TP785-869 Jens H. Nielsen Bjarni G. Jónsson Chiara Bedon GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads
description	This paper presents a novel concept for improving the long-term load-bearing performance of reinforced glass beams (hybrid beams). The concept of reinforcing glass beams using steel or other (ductile) materials have been investigated over the last couple of decades utilising the fracture pattern of annealed glass to ensure a ductile behaviour. However, it is well known that the long-term strength of annealed glass is rather low due to so-called static fatigue leading to a relatively poor performance for most hybrid-beams. As an example will a hybrid beam based on annealed glass exposed to 26 MPa permanent load fail in less than a day according to a European code. The novel concept suggested here utilises a combination of annealed and fully tempered glass in an arrangement where the tempered glass carries the long-term loading whereas short-term loading is carried by the reinforced annealed glass. The concept is based on the relaxation of shear stresses in the PVB (polyvinyl butyral) interlayer, material properties of PVB from different authors have been compared, and a set of average parameters have been suggested. The main purpose of the paper is to introduce the concepts and mechanisms of such beams and provide a basis for further optimisation.
format	article
author	Jens H. Nielsen Bjarni G. Jónsson Chiara Bedon
author_facet	Jens H. Nielsen Bjarni G. Jónsson Chiara Bedon
author_sort	Jens H. Nielsen
title	GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads
title_short	GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads
title_full	GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads
title_fullStr	GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads
title_full_unstemmed	GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads
title_sort	gs&e journal > a novel concept for a reinforced glass beam carrying long term loads
publisher	Challenging Glass Conference
publishDate	2020
url	https://doaj.org/article/dd749b857e51477daa9757e62e9d5e5f
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GS&E journal > A Novel Concept for a Reinforced Glass Beam Carrying Long Term Loads

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