9.23.9.7.(1)

Objective

OS3 Safety in Use

Attribution

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

Intent

Intent 1:

To limit the probability of inadequate end support, which could lead to the inadequate transfer of loads to supporting members, which could lead to an inability to resist expected gravity loads.

This is to limit the probability of:

  • compromised structural integrity,
  • where elements support or are part of an environmental separator, the failure of required environmental separation elements, which could lead to deterioration, or
  • an inability to resist expected loads, which could lead to:
    • 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, and
  • persons losing their balance, tripping or falling.

This is to limit the probability of harm to persons.

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