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[TowerTalk] Re-Bar Cage Advise

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Subject: [TowerTalk] Re-Bar Cage Advise
From: "Gary E. Jones, Ph.D." <>
Date: Sat, 21 Jan 2006 15:23:22 -0600
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I have fabricated several rebar cages for crank ups like HyGain HD-70
and concrete guy point for Rohn 45 towers, but I now am trying to
fabricate a rebar cage for a US Towers HDX-589 MDPL. I had no trouble
with the others and simply bent the rebar as needed and used mild steel
wire to tie it all together. They were unwieldy to work with, but not
particularly heavy and I could work with them. 
However, this rebar cage for the HDX-589 calls for double 8 foot lengths
of #13 rebar at each corner which end up vertical in the whole, and 9
horizontal rebar bracing rings spaced every one foot up the 8 foot
vertical "sides". 
Its hard for me to understand how this monster will stay together with
just mild steel ties. I believe that you are really not supposed to have
these cages welded together, but it is hard for me to imagine that it
will stay together as it is lowered into the hole, etc., with just wire
ties binding it all together. It really seems that the weight of this
monster (about 200 - 250#) is going to make it mandatory to weld the
cage together to keep it from distorting as it is lowered and set in the
hole (and even, just to build). 
Any advise out there with big cages like this one?  Any experience with
welding them together?
                Gary      W5FI 
Gary and Dee Jones
4510 Buckingham Drive
Shreveport, LA    71107-9768    (House email address)
(318)  309-2139  (House Telephone)

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