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9.4.4.5.(1)
OS2OP2OH1OH4OS3
ObjectiveOS3 Safety in Use
Attribution
[F20-OS3.1] Applies to floors and elements that support floors.
Application
Application 1: 
Design of walls, including foundation walls and the walls associated with exterior below-grade entrances, that are subject to lateral loads from retained soil or from other material that exerts lateral pressure, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability of the cracking of foundations or building superstructures.
This is to limit the probability of:
  • compromised structural integrity, 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, which could lead to compromised structural integrity.
For floors and elements supporting floors, this is to limit the probability of excessive deflection or vibration, which could lead to a loss of balance, tripping or falling, which could lead to harm to persons.
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