Insulating Glass Unit Quick Selection Guide
Publication: Journal of Architectural Engineering
Volume 26, Issue 4
Abstract
The structural design of sealed insulating glass units for wind loads involves complex structural mechanics procedures that address load sharing between two glass lites that vary in thickness, dimensions, and heat treatments. In exhaustive studies of windows in mid- and high-rise buildings, it has been shown that any one of six commonly used window glass lites [6, 8, 10 mm (1/4, 5/16, 3/8 in.), heat-strengthened and fully tempered], acting alone, can represent the minimum load resistance of dual-lite, sealed insulating glass units that contain this lite when paired with any one of the six listed lites. Further, the minimum load resistance of each of these six lites can be related to building height by employing wind load design of current standards. An innovative technique permits selection of dual-lite insulating glass unit constructions for mid- and high-rise buildings in the Inland Zone and a Hurricane Zone that meet wind load provisions of building codes based upon building height alone, without calculations.
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References
ASCE. 2017. Minimum design loads and associated criteria for buildings and other structures. ASCE 7-16. Reston, VA: ASCE.
ASTM. 2016. Standard practice for determining load resistance of glass in buildings, annual book of ASTM standards 2018. ASTM E1300-16. West Conshohocken, PA: ASTM.
Minor, J. E., and H. S. Norville. 2018a. “Selection of architectural glazing constructions without calculations.” J. Archit. Eng. 24 (1): 04017036. https://doi.org/10.1061/(ASCE)AE.1943-5568.0000292.
Minor, J. E., and H. S. Norville. 2018b. “Insulating glass strength made simple.” Glass Magazine 36–38.
Standards Design Group. 2009. Software package: Atmospheric effects on insulating glass units. Lubbock, TX: Standards Design Group.
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© 2020 American Society of Civil Engineers.
History
Received: Jul 22, 2019
Accepted: Aug 12, 2020
Published online: Oct 8, 2020
Published in print: Dec 1, 2020
Discussion open until: Mar 8, 2021
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