On 10/13/2014 8:37 PM, Tim Duffy wrote:
Hello Matthew:
What is the center to center distance of the legs? It could be Rohn 25 - not
model 45 from the photos.
If my notes are right, I measured it at about 17 inches, and the joints
are like Rohn 45 joints, not swaged joints.
It looks like the dirt trapped lots of moisture around the base. That might
be a problem.
That is exactly what happened. Not sure what percentage of its life was
spent like that, but long enough to eat through the galvanizing and get
rust going.
A close inspection of the entire installation by a trained and certified
tower professional is defiantly in order. Do not take any chances.
Point taken. But still want to get a rough idea of the right level of
professional. Most "tower professionals" aren't structural engineers,
and most structural engineers want to defer to the manufacturer of the
structure. If we're looking at "yeah, that's more than enough good metal
remaining for sure", I'll go with a tower professional. If we're looking
at "definitely way too much metal is missing and the bottom section and
plate must be replaced" (or "just replace the whole tower") then I'll
find a tower professional who likes cranes, I suppose.
Matthew
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