Zur Stabilität von geklebten und geklotzten Glasscheiben: Beurteilung der Dunkerley'schen Geraden zur Beulwertbestimmung

Lightweight structures can nowadays be stiffened efficiently by means of glued and embedded timber-glass composite panes. So far, glass has been mainly a filling building material. But a novel construction principle enables load transfer of horizontal forces via vitreous shear areas and compression diagonals within the glass. Hence, conventional stiffening methods such as wind bracings become dispensable. The glass panes' stability proof, one of the most important proofs within the sizing of stiffening timber-glass composite panes, presupposes the identification of the glass panes' buckling coefficient. Due to the superposition of two bearing mechanisms within one pane, the buckling coefficients depending on the way of load application have to be superimposed too. This can be carried out approximatively via the linear interaction correlation of the Dunkerley straight line, whose calculation inaccuracies are analyzed and evaluated in the first main chapter. In the second main chapter it is proven that the Dunkerley straight line represents a conservative calculation method for the present problem. So far, this fact was assumed to be known and "obvious", but a rigorous justification was missing.