Intent 1:
To limit the probability that any surcharge on the
foundation walls will not be included in the design pressures, which
could lead to the walls being unable to resist 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.
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 other than drained earth
that are not constructed in accordance with Section 9.15.