Sentence 9.20.9.4.(2)

Intent 1:

To limit the probability that the performance of the ties will fall significantly below expectations, with respect to:

• corrosion resistance,
• resistance to buckling, tensile failure and withdrawal under compression and tensile loads, and
• transferring lateral loads from one wythe to another.

This is to limit the probability of inadequate load distribution among the wythes of multiple-wythe masonry walls, which could lead to an inability to resist transverse or vertical loads, which could lead to cracking or buckling.

Where masonry construction is required to provide fire resistance, this is to limit the probability of compromised fire resistance of the assembly, which could lead to harm to persons.