On Fri, 4 Apr 97 04:34:03 UT "Joe Spinosa" <Spinosa@msn.com> writes:
>I can tell you that when I applied for a permit to erect a tower in my
>part of the reason they denied it was that they felt that if it ever
>it could/would destroy neighboring property.
>In fact, they wanted a huge margin. If the tower was going to be 50
>tall, they would want at least 75 feet of clearance in all directions.
>This notion has physically been shown to be false. I can't remember
>specification, but its something like 33% of the height of the tower.
>other words, a 50' tower should fail/fall into a circle about 17' in
>I'm not an engineer, but that's what I'm told.
>I think the numbers are important to show municipalities like mine,
>it's one of those aspects of engineering that seems to be
The 2000 ft tower collapsed on itself because of a structural failure
within the tower, much like when they demolish buildings by blowing
out the support members.
Reply from N4KG:
With an ANCHOR failure, the tower will fall over, most likely extending
to it's full height.
With a guy wire failure, numerous possibilities present themselves.
For short towers with a single set of guys, it will likely fall over, to
full height. With multiple sets of guys, it may buckle out at a mid
or fold over at some mid point, depending on which guy failed.
de Tom N4KG
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