Sentence 9.20.17.3.(3)

  1. OS2
  2. OP2
  3. OH1
  4. OH4
  5. OS3

Objective

OS3 Safety in Use

Attribution

[F20,F22-OS3.1]Applies to floors and elements that support floors.
[F20,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 that there will be insufficient reinforcement to transfer the loads around openings in the walls, which could lead to an inability to resist transverse or vertical loads, which could lead to concrete cracking or the displacement of walls.

This is to limit the probability of:

  • compromised structural integrity, or
  • where elements support or are part of 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:

  • for floors and elements supporting floors, persons losing their balance, tripping or falling, or
  • the compromised operation of doors or windows required for egress in an emergency.

This is to limit the probability of harm to persons.

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