In a message dated 5/9/02 10:31:05 AM Pacific Daylight Time,
JPERALTA@tampabay.rr.com writes:
> I had been asking around the local Amateur Radio community to see if anyone
> had
> any Rohn 25 tower sections that were excess to their needs. One of the
guys
> came by this weekend and dropped off a section that he had just taken down
> from
> another Ham's tower. The section is in good shape except were the previous
> owner had drilled a 1/4" hole in one leg about 6 to 8 inches above what
> would
> be the bottom side. The hole goes through both sides of the leg.
>
> Should I be concerned that this section has been weakened enough to create
a
> safety issue?
Probably not. While a hole like that is a stress-riser and potential
failure mode, it'd have to be a pretty big load and wind force to get the leg
to collapse at that point.
You could put a snug bolt thru it to reinforce it somewhat.
Cheers,
Steve K7LXC
TOWER TECH
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