[TowerTalk] concrete bases for freestanding towers

[John Lemay]

This thread about towers which are bracketed to the house, and also guyed is
very worrying to me. I'm a charted engineer, and I can see considerable
difficulty in deciding how the various forces are distributed between the
house bracket and the guys.

John G4ZTR

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of K8RI on TT
Sent: 15 May 2011 06:14
To: towertalk at contesting.com
Subject: Re: [TowerTalk] concrete bases for freestanding towers

On 5/14/2011 11:59 PM, EZ Rhino wrote:
> Frankly I've never understood why a house bracket is either needed or a
good idea.  If the tower is guyed above the bracket, there is no reason to
have it because it isn't adding anything to the system (assuming guying at
the proper intervals, etc).  The only reason I can see to have one is in
steadying the lower sections as the tower is constructed (in place of
temporary guys).
>

I believe the recommendation is to not bracket guyed towers.  The house 
probably moves more than the tower.  Go up on top of a home on a windy 
day. go over by the chimney and watch the flashing between the roof and 
chimney flex.

73

Roger (K8RI)
> Chris
> KF7P
>
>
>
>
>
>
> On May 14, 2011, at 19:50 , W2RU - Bud Hippisley wrote:
>
>
> On May 14, 2011, at 9:29 PM, WA8JXM wrote:
>
>> My concern with attaching a tower to the house is that if the tower moves
back and forth just a slight bit in the wind, will that eventually loosen
the framing on the house?
> Goodness!  What are you guys _putting_ on your house-bracketed towers?
>
> Why would wind on a thin-member lattice tower and cylindrical-element
antennas create more disturbance to framing than wind on a solid wall?
>
> Bud, W2RU
>
>
>
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