Transcript
||Cold bending of thin glassMicro Project HS19
Micro Project – Salome Geiser
13.12.2019 1
Cold bending of thin glass
Salome Geiser
||Cold bending of thin glassMicro Project HS19
Trends in architecture Lightness Transparency Complex forms
Appropriate properties of glass
Sources: https://inhabitat.com/the-hagues-elegant-new-light-rail-station-masters-curved-glass-and-steel/
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Introduction
||Cold bending of thin glassMicro Project HS19
Hot-bending Complex forms Energy inefficient Lower precision
Cold-bending Curvatures Energy efficient High precision
Sources: http://www.evolo.us/shell-and-shadow-for-nordpark-railway-stations-in-innsbruck-austria-zaha-hadid-architects/https://www.raileurope.ca/fr/place/strasbourg-gare-centrale
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Introduction
||Cold bending of thin glassMicro Project HS19
Two methods: Bending and mechanical fixing Lamination
Elastic and reversible
Permanent bending stresses
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Introduction: Cold bending
||Cold bending of thin glassMicro Project HS19
Usually < 2mm Chemically hardened Alkali-Aluminosilicate glass
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Introduction: What is thin glass?
||Cold bending of thin glassMicro Project HS19
Displays Automotive industry Aerospace industry
Source: www.schott.com
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Applications
||Cold bending of thin glassMicro Project HS19
Construction industry Curved glass planes Adaptive facades
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Applications
||Cold bending of thin glassMicro Project HS19
Construction industry Curved glass planes Adaptive facades Thin glass composites And many others…
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Applications
||Cold bending of thin glassMicro Project HS19
Spring-back effect and creep of laminates Loss of stress up to 12% (Gordon, 2019)
Source: https://www.balustradeglass.co.uk/help/glass-information/
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Design Questions
||Cold bending of thin glassMicro Project HS19
Spring-back effect and creep of laminates Loss of curvature up to 50%
Instabilities for biaxially curved forms
Source: Datsiou, Kyriaki Corinna. (2017). Design and Performance of Cold Bent Glass.
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Design Questions
||Cold bending of thin glassMicro Project HS19
Spring-back effect and creep of laminates Loss of curvature up to 50%
Instabilities for biaxially curved forms
Support Mechanical mounting
Ageing
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Design Questions
||Cold bending of thin glassMicro Project HS19
Promising method to create complex forms More energy efficient than hot bending Saves materials Application in numerous industries Still a lot of design question Limited research done
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Conclusion
||Cold bending of thin glassMicro Project HS19
www.us.schott.com Datsiou, Kyriaki Corinna. (2017). Design and Performance of Cold Bent Glass. Silveira, Rebeiro. (2016). Flexible transparency: A study on thin glass adaptive
façade panels. TUDelft. Neeskens, Tim. (2018). Thin glass composites: based on a structural efficiency
increasing design strategy. TUDelft. Nehring, Gordon. Siebert, Gerald. (2019). Bemessung von ein- und zweiachsig
kaltgebogenen Schalenstrukturen aus Dünnglas.
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Sources
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