To limit the probability of:
- concentrations of stress in areas that typically experience
higher levels of lateral stress (e.g. around openings), which could
lead to an inability to resist transverse or vertical loads, and
- inadequate load distribution among the wythes of multiple-wythe
This is to limit the probability of 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 excessive deflection or vibration of floors.
For floors and elements supporting floors, this is to limit
the probability of persons losing their balance, tripping or falling,
which could lead to harm to persons.