In case you’re unaware…a really good source of answers to questions about steel design and construction is the AISC Steel Solutions Service. This free service provides answers to technical questions usually within 24 hours. You can access the Steel Solutions Center by emailing firstname.lastname@example.org or calling 866.ask.aisc.
In addition, a lot of information is available in the engineering FAQ section of the AISC website (www.aisc.org).
Finally, all Engineering Journal and AISC Design Guides are available as free downloads to AISC members; plus, AISC offers all of its codes and specifications as free downloads to everyone. Visit www.aisc.org and click on ePubs/freePubs.
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This table may (and not necessarily will) work only for the "standard" oversize.
According to Section "Washer Requirements" (page 14-10), the washer "thickness must be suitable for the forces transferred." In my understanding, that thickness was the original question.
V. Steve Gordin, SE
----- Original Message -----
Sent: Thursday, June 25, 2009 14:02
Subject: RE: Anchor rod washers
Table 14-2 in AISC Manual, 13th Edition. Base plate holes are oversized, washer holes are standard size.
CH2M HILL / DEN
From: Drew Morris [mailto:email@example.com]
Sent: Thursday, June 25, 2009 2:25 PM
Subject: Anchor rod washers
I am trying to track down the recommended washer plate thickness for anchor rods. Typically the holes are oversized and I am trying to find the thickness for the washers. i assume it is some percentage of the rod diameter. Can anyone direct me to where i can this info?