To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
Subject: RE: Bolt Holes, Another Application
From: Harold Sprague <harold.sprague(--nospam--at)neenan.com>
Date: Thu, 15 Apr 1999 13:05:46 -0600
I have done it 2 different ways.
1. Put shear lugs on the setting template & weld a bar from the base plate
to the setting template. That way the shear never goes through the anchor
2. For smaller shear loads:
a. Use the oversized base plate holes (for ease of erection).
b. Provide plate washers 3" x 3" x 1/4" (with the standard 1/16"
oversize holes) under the head of the anchor bolt.
c. Weld the plate washer to the base plate.
The Neenan Company
From: Bill Sherman [mailto:SHERMANWC(--nospam--at)cdm.com]
Sent: Thursday, April 15, 1999 10:44 AM
Subject: Re: Bolt Holes, Another Application
Another question on standard vs oversized bolt holes - what about holes for
anchor bolts in base plates where shear is to be transferred from the base
plate to the anchor bolt? While contractors prefer to use oversized holes
base plates due to construction tolerances, how can you count on shear
transfer if holes are oversized? (i.e., with reversible wind or seismic
I normally specify anchor bolts to be placed using a template and use
hole sizes (1/16" over bolt size) where shear is to be transferred, but I am
curious as to what others do.