In a message dated 12/30/2005 9:23:55 A.M. Pacific Standard Time,
farmer.aj@gmail.com writes:
>> It's been my experience that rebar in tower bases isn't usually
>> 'structural'. It's primary purpose is to hold the concrete together
while it
>> cures to prevent cracks in it. Rebar schedules are in the drawings for
each tower
> The rebar is not just to "hold it together while it cures", it
provides tension strength to the concrete. Concrete has high
compression strength, but has very little tension strength. The rebar
provides the tension strength.
Okay, I stand corrected. Does that make it "structural"? Wouldn't
the ground provide the constraint/tension? I can see where a concrete block
sitting on top of the ground would need the tension but below grade isn't that
a
moot point?
Cheers,
Steve K7LXC
TOWER TECH
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