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[TowerTalk] rebar cages

To: <>
Subject: [TowerTalk] rebar cages
From: (
Date: Mon, 3 Sep 2001 12:07:57 EDT
In a message dated 8/28/01 9:24:43 PM Central Daylight Time, writes:

> I'm erecting some Rohn tower and have been studying 
>  the rebar cage drawings which can be a bit cryptic.  
>  In particular I am looking at the CB-1 base drawing.  
>  It appears that they (Rohn) want four vertical #6 
>  rebars (one near each corner) with horizontal ties of 
>  #3 every 12 inches.
>  The drawing shows each horizontal tie as being one 
>  continuous piece of rebar wrapped around the 
>  verticals.  Is there a significant difference in the 
>  strengths of these two arrangements?  Looks to me that 
>  having separate bars would be far easier to construct 
>  although using them would likely yield a somewhat 
>  less stable cage - at least when out of the concrete.
>  Mike N2MG

The difference is the development length (and strength) of two rebar is much 
less than a bent one. You should build it as detailed and not try to reinvent 
the wheel.

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