[TowerTalk] Achor bolts?

Patrick Greenlee patrick_g at windstream.net
Sat Mar 24 10:14:26 EDT 2018


Hans, If it seems too good to be true it likely is.  Someone may J-walk 
mid block and never look either way for cars and not get killed (yet) 
but that doesn't mean it is a safe practice. Tower manufacturers are in 
CYA mode and may call for a conservative solution but following their 
recipes for rebar cages in concrete foundations is a lot better path 
than some non engineered solution on FARCE BOOK. In my personal opinion 
the FARCE BOOK solution is a recipe for disaster.  Until the antenna is 
installed and there is a REAL wind gusting, undercooked pasta might hold 
a well balanced tower (for a while.)

There are two kinds of confidence: 1. something is well thought out and 
supported by all facts in evidence, experience, and science/engineering 
and so is believed until proven otherwise and 2.  Something that is 
suspect and not accepted until  supported by substantial evidence.  Much 
stuff on FARCE  BOOK  (or other idiot laden social network apparitions) 
is of the latter quality (See #2 above)

Oh, but if apple cider vinegar and a natural replacement for Viagra is 
used to "Prime" the galvanized fasteners at midnight under a full moon 
then I' sure it is OK.

Patrick        NJ5G



On 3/24/2018 8:34 AM, Hans Hammarquist via TowerTalk wrote:
> Dear towertalkers,
>
> The are claims in a discussion on Face Book that an anchor bolt, "5/8 in. x 12 in. Hot-Galvanized", is suitable for a free standing tower. Someone even claims it is used for a 400' freestanding tower. It doesn't make sense to me but I might be overly pessimistic.
>
> I hate to start lengthy discussions and this might be one of them so, please, comment only if you have a well grounded answer. I'm sure there are plenty of opinions about it like my own, but I would like to know if my guts feeling is right or wrong. What I am afraid of is that you can pull out an anchor bolt like that right out of curred concrete.
>
> 73 de,
>
> Hans - N2JFS
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