Towertalk
[Top] [All Lists]

Re: [TowerTalk] New Tower Old Base

To: EZ Rhino <ezrhino@fastmovers.biz>
Subject: Re: [TowerTalk] New Tower Old Base
From: Robert Harmon <k6uj@pacbell.net>
Date: Wed, 9 Feb 2011 00:16:15 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
If it is guyed tower then epoxying in anchor bolts should be a good solution
provided they are sized properly.    
If it is a self supporting tower it is a different ball game and it would be 
wise to have the tower connection 
to the concrete footing reviewed by a structural engineer.  There is tremendous 
stress exerted on the anchor bolts 
of a self supporting tower.  If the tower is 70 feet high, visualize a 70 foot 
pry bar pulling on the anchor bolts.  The anchor
bolts are a critical part of the footing design.  My self supporting tower has 
(2) 1 1/4" diameter by 3 1/2 foot long J bolts with
a 6" hook on the lower end at each of the three corners that are cast in the 
concrete footing. 

73,
Bob
K6UJ

  
On Feb 8, 2011, at 6:07 PM, EZ Rhino wrote:

> Keep the information on the list; I want to know more about this as well.   
> 
> A local here upgraded from a 50' to a 70' tower, and did this very thing.  He 
> used some kind of an epoxy to glue in the bolts.  Obviously the base has to 
> be large enough to do this.  So far so good.
> 
> Chris
> KF7P
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Feb 8, 2011, at 15:54 , Richard Zalewski wrote:
> 
> I will be upgrading my tower and will be using my existing base.  This will
> require drilling the existing concrete base and epoxing in some new bolts.
> I would be interested in exchanging some emails with someone who has done
> this.
> 
> 
> -- 
> Tnx es 73
> Richard W7ZR
> www.w7zr.com
> 
> *WHAT HAVE YOU DONE WITH WHAT YOU HAVE BEEN GIVEN?*
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
> 
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk

_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>