9.23.13.7.(7)

Objective

OS3 Safety in Use

Attribution

[F22-OS3.1]Applies to walls that support floors.
[F22-OS3.7]Applies to walls that contain doors or windows required for emergency egress.

Intent

Intent 1:

To limit the probability that the upper storey braced wall panel will be excessively stronger than the lower storey braced wall band, which could lead to a weak storey, which could lead to compromised structural integrity, which could lead to excessive racking.

This is to limit the probability of:

  • compromised structural integrity, or
  • the excessive deformation, displacement or failure of required environmental separation elements, which could lead to deterioration, which could lead to compromised structural integrity

This is to limit the probability of:

  • the excessive deflection or vibration of floors, or
  • the excessive movement or deformation of walls.

This is to limit the probability of:

  • compromised operation of doors or windows required for egress in an emergency, which could lead to delays in the evacuation or movement of persons to a safe place, and
  • persons losing their balance, tripping or falling.

This is to limit the probability of harm to persons.

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