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9.4.4.2.(1)
OS2OP2OH1OH4OS3
ObjectiveOS2 Structural Safety
Attribution
[F20-OS2.3] Applies to elements that support or are part of an environmental separator.
Application
Application 1: 
Design capacity of foundations, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], where the bearing capacity of soil that is within a distance of twice the footing width below the bearing surface of the footing is lower than the bearing capacity of the soil at the bearing surface of the footing.
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Intent
Intent 1: 
To limit the probability that an excessive design capacity of foundations will lead to soil subsidence, which could lead to the cracking of foundations or building superstructures.
This is to limit the probability of compromised structural integrity, which could lead to:
  • structural failure, or
  • for environmental separators or elements supporting environmental separators, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements.
This is to limit the probability of harm to persons.
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