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Description: Insulated concrete sandwich wall construction provides a good thermal barrier and in most cases has a reasonable heat storage capacity. Further advantages of this type of construction are its durability, and the fact that it does not support combustion. Furthermore, if well detailed, the construction is rodent-proof which is important for agricultural structures. A possible disadvantage of sandwich wall construction is that the determination of stresses due to flexure is difficult because of shear deformation in the insulation. As well, the type of connection between the two wythes of concrete affects the bending stresses considerably. Tilt-up precast concrete sandwich panels have to withstand considerable bending stresses during erection when sections of wall that were constructed horizontally are lifted into a vertical position. Cast-inplace sandwich walls may be subjected to bending moments caused by lateral loads from backfill or from bulk materials stored inside the building. All sandwich walls will be subject to flexure caused by vastly differing temperatures of the two wythes.

Keywords: thermally induced bending stresses in insulated concrete sandwich walls
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Citation: Jofriet, J.C. and M. Thompson 1985. THERMALLY INDUCED BENDING STRESSES IN INSULATED CONCRETE SANDWICH WALLS. Canadian Agricultural Engineering 27(2):115-120.
Volume: 27
Issue: 2
Pages 115 - 120
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Date: 1985
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Coverage: Canada
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