A Stressed-Skinned Structural made of a wood-composite panel with foam insulation core laminated between two oriented-strand boards of 7/16” thickness , are called Structural Insulated Panel if OSB are in both faces, and Permanent Wood Foundation if one face contains preserved Plywood of 5/8” thickness, SIPs /PWF Foundation SIPs deliver building efficiencies by replacing several components of traditional residential and commercial construction. ..... Two PWFs sizes were considered in this study, 9’ and 10’ height, respectively, with 4’ width and approx ± 230 mm thick. The experiment study performed in a manner to comply with applicable ASTM test methods and Canadian Codes for Limit State Design. It should be noted that the long-term creep tests were performed over a nine months, followed by loading the tested panels to destruction. The long-term creep test results established the increase in panel total deflection with time. The long-term creep test results led to an empirical creep constant that can be used to obtain the long-term deflection over a specified period of time. The ultimate load test results showed that the structural qualification of PWF is “as good as” the structural capacity of the conventional wood-frame buildings. The obtained experimental ultimate compressive loading as well as the long term deflection of the wall under lateral soil pressure / Equivalent Fluid Pressure (EFP) will be used in the force-moment interaction equation to establish the design tables of such wall panels under gravity loading and soil pressure.
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PWF; Permanent Wood Foundation
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SIP; Structural Insulated Pane
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Reference:
Sayed-Ahmed, M.; Shehata, E.; Sennah, K. (2010). Development of Creep Model for Structural Insulated Timber-Foam Sandwich Walls under Sustained Soil Pressure in Basements of Residential Buildings. Journal of Al-Azhar University Engineering Sector, JAUES, ISSN 1110-6409, Vol. 5, Issue 1, pp. 603-614.
