In a message dated 8/28/01 9:24:43 PM Central Daylight Time,
n2mg@contesting.com 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.
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|