Intent 1:
To limit the probability of inadequate strength
of floor or roof joists to resist lateral loads, which could lead
to inadequate anchorage of floor or roof assemblies to masonry walls,
which could lead to inadequate lateral stiffness, which could lead
to an inability to resist lateral loads or inadequate distribution
of gravity loads, which could lead to cracking or buckling.
This is to limit the probability of:
- compromised structural integrity of masonry construction,
- where masonry construction is part of an environmental
separator, the displacement or failure of required environmental separation
elements, which could lead to deterioration,
- in assemblies exposed to moisture or the exterior, damage
and deterioration, or
- an inability to resist expected loads, which could lead
to:
- the excessive movement or deformation of walls, or
- the excessive deflection or vibration of floors.
This is to limit the probability of:
- the space being unsuitable for its intended use,
- compromised operation of windows or doors, or
- damage to the building.