Structural Performance of Double-Skin Façade Systems Subjected to Blast Pressures
Publication: Journal of Structural Engineering
Volume 141, Issue 12
Abstract
The main function of a building façade system is to provide comfort and protection to interior building spaces. In a blast event, façade components become the weakest part of a building and the blast-induced shock wave may breach the facade and injure building occupants due to flying debris. There is increasing popularity in the use of double-skin façade systems (DSFSs) in modern façade construction because of their energy efficiency advantages. In addition to their improved energy performance, DSFSs can increase the blast-resistant capacity of a building. However, due to the complex structural interactions between DSFSs and blast-pressure waves, there is a lack of design codes that account for the performance of DSFSs under blast loading. This paper reports on an experimental program of analogical DSFSs that consist of steel panels as opposed to glass panels, subjected to a 250 kg equivalent TNT charge weight at a stand-off distance of 52 m (250 kg @ 52 m). Three different DSFS compartments with varying ventilation areas were tested. Numerical analyses of the structural responses of a DSFS were then conducted based on the pressures recorded in the experiment. A comparative study was conducted on the blast performance of glass panels, based on the design procedures of current standards and numerical techniques. It was found that the current standards for double-glazed insulating glass (IG) units greatly overestimated the blast performance of DSFSs by simplifying the load-sharing factors. This paper further identifies the critical parameters of DSFSs when assessing their responses to blast pressures.
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References
ASTM. (2004). “Standard practice for determining load resistance of glass in buildings.” E 1300-04, West Conshohocken, PA.
ASTM. (2012). “Standard practice for specifying an equivalent 3-second duration design loading for blast resistant glazing fabricated with laminated glass.” F 2248-12, West Conshohocken, PA.
Beason, W. L., and Morgan, J. R. (1984). “Glass failure prediction model.” J. Struct. Eng., 197–212.
Committee BD-007. (2006). “Glass in buildings—Selection and installation.” AS 1288-2006, Sai Global, Sydney, NSW, Australia.
Committee BD-007. (2012). “Insulating glass units.” AS/NZS 4666:2012, Sai Global, Sydney, NSW, Australia.
Cormie, D., Mays, G., and Smith, P. (2009). Blast effects on buildings, Thomas Telford, London.
Crawford, J. E. (2006). “Analysis, design, and upgrade to windows subjected to blast loads, short course: An introduction to explosion effects and design for blast.” Melbourne, Australia.
Gratia, E., and Herde, A. D. (2004). “Natural cooling strategies efficiency in an office building with a double-skin façade.” Energy Build., 36(11), 1139–1152.
Gratia, E., and Herde, A. D. (2007). “Greenhouse effect in double-skin façade.” Energy Build., 39(2), 199–211.
Ishida, H. (2003). “Double-skin glass façade—Design method of wind pressure.” Proc., Glass Processing Days, Tampere, Finland.
Lou, W., Huang, M., Zhang, M., and Lin, N. (2012). “Experimental and zonal modeling for wind pressures on double-skin facades of a tall building.” Energy Build., 54(0), 179–191.
Manz, H., and Frank, T. (2005). “Thermal simulation of buildings with double-skin façades.” Energy Build., 37(11), 1114–1121.
Mohotti, D., Lunmantarna, R., Ngo, T., and Mendis, P. (2010). “Improving the safety of buildings through an innovative sustainable façade system.” Proc., Int. Conf. on Sustainable Built Environments, Univ. of Moratuwa, Sri Lanka.
Muller, R., and Wagner, M. (2006). Computation of blast resistant window and façade constructions, ibdrm, Munich, Germany.
Stewart, M. G., and Netherton, M. D. (2008). “Security risks and probabilistic risk assessment of glazing subject to explosive blast loading.” Reliab. Eng. Syst. Saf., 93(4), 627–638.
USACE. (2008). “Structures to resist the effects of accidental explosions.”, U.S.A Unified Facilities Criteria (UFC).
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Information
Published In
Journal of Structural Engineering
Volume 141 • Issue 12 • December 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Jun 23, 2014
Accepted: Mar 9, 2015
Published online: May 4, 2015
Discussion open until: Oct 4, 2015
Published in print: Dec 1, 2015
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