[TowerTalk] RE: Installing Tower Bolts

[FireBrick]

Not really Terry
We are talking about apples and oranges here.
tying the rebar and bolts together is done in NEW pours.
Epoxy bolt installations is for anchoring a new tower base to an old concrete base.

Pretty hard to do with already existing concrete.

Totally different  installations.




----- Original Message ----- 
From: "Terry Dunlap" <kk6t at pacbell.net>
To: "FireBrick" <w9ol at billnjudy.com>; "TowerTalk List" <towertalk at contesting.com>
Sent: Friday, October 01, 2004 2:40 PM
Subject: Re: [TowerTalk] RE: Installing Tower Bolts


> This brings up a question that I've had for a while.  It's always 
> recommended that  the bolts get
> tied to the rebar in a new base installation but it seems to be accepted 
> practice to retrofit an
> existing base for a different tower by using epoxy anchors.  These anchors 
> aren't tied to the
> rebar in any way and would be the same as NOT tying bolts in a new 
> pour.  Isn't this a
> contradiction or at least an inconsistency?
> 
> 73 de Terry KK6T
> 
> 
> 
> At 10:28 AM 10/1/2004, FireBrick wrote:
>>As a licensed mason contractor I was frequently asked to help DIY hams 
>>pour bases.
>>
>>wire tying rebar to the bolts is a must, both around the perimeter and 
>>with diagonals across the center.
>>In addition, I used bolts above and below the bolt template, well tightened.
>>
>>Those tricks took a few minutes to prepare, but saved many minutes during 
>>and after the pour.
>>
>>
>>----- Original Message ----- From: "Bill Turini" <wtu at cypress.com>
>>To: <towertalk at contesting.com>
>>Sent: Friday, October 01, 2004 12:18 PM
>>Subject: [TowerTalk] RE: Installing Tower Bolts
>>
>>
>>>There was a comment made regarding welding tower bolts together at the
>>>base to ease installation.  I ran into problems with my recent
>>>installation and have a plan for my next tower base. :-)
>>>
>>>I built the base per the engineering drawings, and hung the 4' long
>>>bolts from the tower baseplate per the factory recommendation. When we
>>>poured the concrete into the hole, the bolts were just hanging there,
>>>flapping the the breeze, so to speak. We had to halt the pour to
>>>reposition the bolts three times, and they never did end up vertical.
>>>
>>>On the next tower, I'm going to tie rebar horizontally across the rebar
>>>cage and secure the bolts to it. That way they'll end up correctly
>>>spaced vertically and horizontally. As I said, they're very close, but
>>>we had a problem keeping them in position during the pour.
>>>
>>>As and aside, the concrete pumper got "constipated" during the pour.
>>>Boy, I never saw grown men work so fast to try to get it cleared! I
>>>guess the thought of all that concrete in the tube and the hopper was a
>>>bit daunting.
>>>
>>>The driver ended up calling in the firm owner and other drivers. I ended
>>>up with four folks from the concrete pump firm doing the pour. My
>>>contractor and his guys just stood and watched.
>>>
>>>Bill
>>>
>>>Bill Turini                         (425) 787-4477
>>>IT & Facilities Manager
>>>Cypress Semiconductor               Lynnwood, WA  98037
>>>
>>>
>>>_______________________________________________
>>>
>>>See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
>>>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
>>>any questions and ask for Sherman, W2FLA.
>>>
>>>_______________________________________________
>>>TowerTalk mailing list
>>>TowerTalk at contesting.com
>>>http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>>_______________________________________________
>>
>>See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
>>Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
>>any questions and ask for Sherman, W2FLA.
>>
>>_______________________________________________
>>TowerTalk mailing list
>>TowerTalk at contesting.com
>>http://lists.contesting.com/mailman/listinfo/towertalk
> 
>