Title:
Thermal Bridging in Concrete Sandwich Walls
Author(s):
Taylor J. Sorensen, Robert J. Thomas, Sattar Dorafshan, and Marc Maguire
Publication:
Concrete International
Volume:
40
Issue:
10
Appears on pages(s):
45-49
Keywords:
wythe, connection, solid section, composite
DOI:
10.14359/51711173
Date:
10/1/2018
Abstract:
Commonly used details can result in significant heat loss and reduce thermal efficiency of concrete sandwich wall panel (SWP) systems. This article examines causes of heat loss in SWP construction, presents examples of thermally inefficient details, and discusses how these details can be modified for improved thermal efficiency.
Related References:
1. “Residential Energy Consumption Survey,” U.S. Energy Information Administration, Washington, DC, 2009, www.eia.gov/consumption/residential/data/2009/.
2. “Commercial Buildings Energy Consumption Survey,” U.S. Energy Information Administration, Washington, DC, 2012, www.eia.gov/consumption/commercial/data/2012/.
3. Olsen, J.; Al-Rubaye, S.; Sorensen, T.J.; and Maguire, M., “Developing a General Methodology for Evaluating Composite Action in Insulated Wall Panels,” Precast/Prestressed Concrete Institute, Chicago, IL, 2017, 225 pp.
4. Sorensen, T.; Dorafshan, S.; and Maguire, M., “Thermal Evaluation of Common Locations of Heat Loss in Sandwich Panels,” ASCE Congress on Technical Advancement 2017, Duluth, MN, 2017, pp. 173-184.
5. Al-Rubaye, S.; Sorensen, T.J.; and Maguire, M., “Investigating Composite Action at Ultimate for Commercial Sandwich Panel Composite Connectors,” Civil and Environmental Engineering Faculty Publications, Paper 3532, Utah State University, Logan, UT, 2017, 15 pp., https://digitalcommons.usu.edu/cee_facpub/3532.
6. Elkady, M.; Tadros, M.K.; Lafferty, M.; Morcous, G.; and Gremel, D., “Precast Concrete Corbels for Insulated Wall Panels,” Concrete International, V. 37, No. 10, Oct. 2015, pp. 45-50.
7. Einea, A.; Salmon, D.C.; Fogarasi, G.J.; Culp, T.D.; and Tadros, M.K., “State-of-the-Art of Precast Sandwich Panels,” PCI Journal, V. 36, No. 6, Nov.-Dec. 1991, pp. 78-98.