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Re: Anchor Bolt Straightening

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I ran into this problem before.  The anchor bolts were so out of plumb that
I had the contractor cut the bolts off and drill new holes for hilti
anchors.  I also charged him time to redesign the oversized base plate.

Chris Towne E.I.T.


----- Original Message -----
From: <Tom.Hunt(--nospam--at)fluor.com>
To: <SEAINT(--nospam--at)seaint.org>
Sent: Tuesday, January 04, 2000 4:17 PM
Subject: Anchor Bolt Straightening


>
>
> I have some 1 1/2 inch diameter anchor bolts with a 10 inch projection
that
> became skewed during concrete pouring.  They support a very large vertical
pump.
> The field would like to straighten the bolts by heating and bending.  My
first
> reaction was "no way" but then I remembered that we use to make L and J
bolts by
> heating and there was a recent thread on beam straightening by heating.
Any
> restrictions, cautions, or suggestions you can think of for heating and
bending
> anchor bolts?  What would be the optimum temperature?  I assume the
maximum
> temperature to be 1300 F per AISC LRFD manual.  The bolts are headed bolts
made
> with standard A36 stock.
>
> Thomas Hunt
> Fluor Daniel
>
>