Intent 1:
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.
This is to limit the probability of:
- the excessive deflection or vibration of directly or
indirectly supported floors, which could lead to persons losing their
balance, tripping or falling, which could lead to harm to persons,
or
- the excessive movement or deformation of directly or
indirectly supported walls with windows or doors, which could lead
to compromised operation of doors or windows required for egress in
an emergency.
This is to limit the probability of harm to persons.
Intent 2:
To expand the application of Section 4.2. to walls supporting drained earth that are not
constructed in accordance with Section 9.15.