Intent 1:
To limit the probability of inadequate restraint
of the lower edges of joists, which could lead to excessive twisting
of joists, which could lead to an inability to resist expected gravity
and lateral loads.
This is to limit the probability
of:
- compromised structural integrity,
- where elements support or are part of an environmental
separator, the failure of required environmental separation elements,
which could lead to deterioration, or
- an inability to resist expected loads, which could lead
to
- the excessive deflection or vibration of floors, or
- the excessive movement or deformation of walls.
This is to limit the probability of:
- compromised operation of doors or windows required for
egress in an emergency, and
- persons losing their balance, tripping or falling.
This is to limit the probability of harm to persons.