Refer to AISC Manual 13th
Edition, Code of Standard Practice, Section 7.5.1a (page 16.3-35): "The
variation in dimension between the centers of any two Anchor Rods
within an Anchor-Rod Group shall be equal to or less than 1/8 in."
Richard, You may be looking for a long time. I would suggest
that this is something that is within your prerogative to define in your
design depending on your requirements.
Further to Conrad's
suggestions, if you find tolerance definitions for steel, they will
probably not be recognized by the foundation concrete workers unless they
are put on the concrete drawings.
If you don't define tolerances, the
ACI tolerances will probably be used - something in the range of +/- 1" per
element. Meaning that you could have anchor rods up to 2" out of position
in the same cluster.
> I'm
looking for a published tolerance for anchor bolt clusters (within the
= > cluster and from one to the next) for a typical building. >
> Richard Calvert, EIT > Project Engineer
>
There was a link to an article last year. About anchor bolt
tolerances. > Could try Steel Tips, AISC and ASCC. Though I imagine your
steel structures > code should have some guidelines on position
tolerances: for holes within a > base plate and for position of columns
and base plates. Alternatively can > also make an assessment based on
the permitted oversize of hole.
> Conrad Harrison
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