Mike Coslo wrote:
Phil Kane wrote:

There was a study made of commercial tower failures several decades
ago that showed this, and I've seen this first hand in some of the
broadcast and comm towers affected by the 1989 Loma Prieta earthquake
in the San Francisco area.

Whether the local building official is sharp enough to know this is an
exercise left to the applicant....!

The most likely failure scenarios are very true, but there is a
credibility issue in these matters. We can speak of failure modes until we
are blue in the face, but a simple worst case fall radius is easy for non-
engineering types to understand.

And all the logic in the world won't help if the local building official
insists on using the worst-case scenario or local laws demand it.
Frankly, if I was the local building official, I would use the
worst-case scenario. The primary responsibility of a building inspector
is public safety, and invoking the worst-case scenario seems appropriate
in this case.

73, Steve KB9X