[TowerTalk] RE: Installing Tower Bolts

[FireBrick]

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
>
>
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