Back9.8.9.1.(1)

ATTRIBUTION:

Functional Statement:

F20

To support and withstand expected loads and forces.

Objective:

OS2.1

 

APPLICATION:

Loads on interior and exterior stairs and ramps, for buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
This also applies to stairs and ramps within dwelling units in buildings to which Part 3 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 3], as stated in Sentence 3.3.4.7.(1).

INTENT:

To limit the probability that:
  • the loads for which stairs and ramps are designed will not take into account probable accumulations of people and objects on the floor or roof surface in the context of use and occupancy, and
  • the live load on stairs and ramps will be less than the accepted minimum value in the context of use and occupancy.
This is to limit the probability of structural failure, which could lead to harm to persons.

ATTRIBUTION:

Functional Statement:

F22

To limit movement under expected loads and forces.

Objective:

OH4

 

APPLICATION:

Loads on interior and exterior stairs and ramps, for buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
This also applies to stairs and ramps within dwelling units in buildings to which Part 3 applies [see Sentence 1.3.3.2.(1) of Division A for application of Part 3], as stated in Sentence 3.3.4.7.(1).

INTENT:

To limit the probability that:
  • the loads for which stairs and ramps are designed will not take into account probable accumulations of people and objects on the floor or roof surface in the context of use and occupancy, and
  • the loads for which stairs and ramps are designed will be less than the accepted minimum value in the context of use and occupancy.
This is to limit the probability of excessive deflection or excessive vibration of structural members, which could lead to negative effects on the psychological well-being of persons.