3. Examples of Thickness Verification
As previously indicated, the verification procedure involves calculating
the minimum thickness e1 of a hypothetical single-pane,
monolithic, annealed glass for the loads applied to the actual glazing,
and then verifying that the pre-selected composition satisfies the
comparison equation between eR and e1, as well
as the deformation equation.
Suppose that the loads on a 0.9 × 1.5 m glazing unit, intended
for a frame whose top rail is less than 6 m above the ground (c =
0.9), supported on three sides with a long free edge, are P = 1,200
Pa. These loads result in a value of e1 = 6.97 mm and a
value of ec = 6.97 × 0.9 = 6.27 mm.
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Strength Verification
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Examples of Thickness Verification