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RE: F1554-55 anchor rods repair
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: F1554-55 anchor rods repair
- From: "Carter, Charlie" <carter(--nospam--at)aisc.org>
- Date: Mon, 9 Sep 2002 11:15:23 -0500
>I assume that the
AISC table for cold bending plate is for bending the
>material one time.
Is there, or should there, be a reduction since the
>anchors bolts will
now be bent twice (first by the loader then second
>to straighten them
bending was done back and forth in rapid succession, the tabulated values might
not be enough to prevent cracking. However, if the bending operations were done
with a lapse of time between them, the resulting aging of the bent steel is
normally sufficient. This is akin to the shop cambering rule of thumb that an
over-cambered beam in need of correction by bending in reverse should be set
aside and pushed the other way a day later. Sometimes a mild heat in the
200-250 degree F range is applied to help the aging process.