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RE: Leveling Nuts

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As a former iron worker, I do not like leveling nuts. Most iron workers will not use them even if you show them. The preference is to use shims and wedges and nuts with plate washers on the top of the base plate only.

That said, if you choose to use them, there is no justification in what the plan checker is asking. What he is trying to do is get the grout to take all of the compression without loading the bolts in compression. The answer is so what if they do take a measure of compression. It will not have a major impact on the performance.

Harold Sprague

From: "John L. Smart" <smartj(--nospam--at)>
Reply-To: <seaint(--nospam--at)>
To: <seaint(--nospam--at)>
Subject: Leveling Nuts
Date: Wed, 14 Sep 2005 12:04:42 -0400

I have a plan reviewer telling me that if I allow leveling nuts, I must
specify that the column be leveled, shimmed, then the leveling nuts backed
off before grouting. The erectors I have asked have never heard of this. Has
anyone else? I assume the point is to keep the column from sitting on the
bolts, but so what?

John L. Smart

Lindsey & Ritter, Inc.


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