9.8.9.4.(1)ATTRIBUTION:
Functional Statement:
F20
To support and withstand expected loads and forces.
Objective:
OS2.1
APPLICATION:
Effective depth, support, fastening, thickness and
spacing of wooden stringers for stairs serving 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 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 of inadequate strength or fastening,
which could lead to structural failure, which could lead to harm to persons.
ATTRIBUTION:
Functional Statement:
F22
To limit movement under expected loads and forces.
Objective:
OH4
APPLICATION:
Effective depth, support, fastening, thickness and
spacing of wooden stringers for stairs serving 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 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 of excessive springiness or excessive
deflection of stairs, which could lead to user anxiety.