Design lateral pressure on walls, including foundation
walls and walls associated with exterior below-grade entrances and window wells, that are subject to lateral loads from drained
earth (e.g. a foundation
wall with footing drains), in buildings
to which Part 9 applies [see Sentence
18.104.22.168.(1) of Division A
for application of Part 9].
To limit the probability that using inappropriate design
pressures will lead to the walls being unable to resist expected lateral pressure,
which could lead to the cracking of foundations or building superstructures.
This is to limit the probability of:
- compromised structural integrity, or
- for environmental separators or elements supporting environmental
separators, the displacement or failure of required environmental separation
elements, which could lead to the deterioration of building elements, which
could lead to compromised structural integrity.
For floors and elements supporting floors, this is to limit the
probability of excessive movement, deflection or vibration of floors, which
could lead to negative effects on the psychological well-being of persons.
To expand the application of Section
walls supporting drained earth that are not constructed in accordance with Section