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9.3.1.1.(4)
ApplicationIntent
OS2OP2OH1OH4OS3OS1
ObjectiveOS2 Structural Safety
Attribution
[F20-OS2.1]
[F80-OS2.3]
[F20-OS2.3] Applies to elements that support or are part of an environmental separator.
Application
Application 1: 
Concrete and reinforcement in flat insulating concrete form walls not exceeding 2 storeys in building height and having a maximum floor to floor height of 3 m, in buildings of light-frame construction containing only a single dwelling unit to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for the application of Part 9], in regions where spectral response acceleration, Sa(0.2), is not greater that 0.4.
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Intent
Intent 1: 
To limit the probability of the use of:
  • inappropriate or substandard concrete,
  • inappropriate or substandard reinforcing, or
  • insufficient overlap of reinforcing bars.
This is to limit the probability of the inadequate performance or premature failure of flat insulating concrete form walls under expected environmental or structural loads.
This is to limit the probability of compromised structural integrity, which could lead to:
  • structural failure, or
  • where concrete supports or is used in an environmental separator, 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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