[TowerTalk] re installing my hdxmdpl72 question on rebar

[Tod -MN]

Bill:

I recall from last Autumn that not only is the requirement for #9 rebar, but
it is for TWO such elements in each corner of the foundation. I do believe
that the spec is set up for earthquake locations. Here in Idaho, on the
Snake River Plain, it turns out that proximity to Yellowstone Park [100
miles] meant that I was in an Earthquake zone. We get lots of very little
tremors apparently and the dome in the center of the Yellowstone Caldera is
rising a couple of inches each year.

In any event, the #9 was available locally -- presumably because everyone
needs specially reinforced foundations. The people who installed the rebar
and poured the concrete were more frustrated by trying to bend #4 at right
angles without a special bending assembly [which they eventually did go off
and arrange] than by the locating and handling of the #9.  

Tod, K0TO



> -----Original Message-----
> From: towertalk-bounces at contesting.com 
> [mailto:towertalk-bounces at contesting.com] On Behalf Of Bill NY9H
> Sent: Monday, May 24, 2010 8:41 AM
> To: towertalk at contesting.com
> Subject: [TowerTalk] re installing my hdxmdpl72 question on rebar
> 
>   planning the rebar cage for the 72 footer,,,so I  
> downloaded from UST the california engineering drawing.
> 
> Went to acquire the rebar,,,  the spec calls for some # 4(1/2 ) 
> ok  &     qty 8   # 9 (1 1/4")   wow.....
> Nowhere can I find stuff that big....  the contactor supplier 
> suggested that might be because of CA earthquakes,,,,&@$#@ ....
> 
> While I'm trying to follow the factory spec ,,,,is that way 
> overkill....???
> I plan on calling UST when CA awakes.
> 
> bill  / 3
> 
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