[TowerTalk] VOA tower demolition in HD

[Tom Frenaye]

At 07:58 PM 4/6/2016, Kathy Bookmiller via TowerTalk wrote:
>Probably many of you have already seen this, but this is a HD version with more views of the tower demolition. 
>I have one question. I've always heard that when a really tall tower comes down, it basically collapses onto itself and doesn't fall as one solid unit extending out the height of the tower. Watching this, I see many of the towers didn't collapse into one small area but went down as a full unit.

There was a NJ engineering firm study done 25-30 years ago on tower failures.   It was mostly about commercial towers more than 200' high.  They all fell within 30% of their height.   I think they were mostly guyed towers.  You may find that K1VR referenced it in his book on antenna zoning issues.   I assume there must be something done more recently.

     -- Tom


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