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9.23.10.6.(2)
OS2OP2OH1OH4OS3OS1
ObjectiveOS2 Structural Safety
Attribution
[F20,F22-OS2.3] Applies to elements that support or are part of an environmental separator.
Application
Application 1: 
Studs on each side of openings in walls, where openings are spanned by a lintel that is not more than 3 m long, in wood-frame constructions to which Section 9.23. applies [see Sentence 9.23.1.1.(1) for application of Section 9.23.].
Exceptions: 
except as stated in Sentence 9.23.10.6.(3), which applies to:
  • interior non-loadbearing walls that are not required to have a fire-resistance rating, and
  • walls with openings no greater than and within the required stud spacing, where no 2 such openings of full stud-space width are located in adjacent stud spaces.
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Intent
Intent 1: 
To limit the probability that studs will not provide adequate support to lintels or will not have adequate capacity to transfer loads, which could lead to studs or lintels being unable to resist expected gravity and lateral loads.
This is to limit the probability of compromised structural integrity, which could lead to:
  • the structural collapse of wood-frame construction, or
  • where wood-frame construction supports or is part of an environmental separator, the excessive deformation, displacement or failure of required environmental separation elements, which could lead to deterioration, which could lead to further compromised structural integrity.
This is to limit the probability of harm to persons.
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