I only had 1 pier pin. Tower was up for 15 years. It gently rotated slightly
with the wind as it was designed to do. So, no, no additional pier pins are
needed...as K7LXC always says....do what the mfr says and don't do what he
----- Original Message -----
From: "jknodel M Knodel" <email@example.com>
Sent: Thursday, May 25, 2006 3:27 AM
Subject: [TowerTalk] Only 2 Pier Pins on Rohn 25 Baseplate?
> Hello all,
> I am back again with another question. Thank you to all who have replied
> and helped answer previous questions that I have posted.
> I noticed that the standard (not hinged) concrete base plate for Rohn 25
> only has holes for 2 pier pins. Is is advisable to drill an additional
> or two in the base plate and install additional pin(s)? It would seem
> this would secure the plate to the concrete foundation more securely.
> Or, is the plate designed for only 2 pins so that the tower base can
> slightly move with the wind forces, such as the commercial towers do with
> single point bearing connection?
> Thanks for any help.
> Jon, N7XW
> TowerTalk mailing list
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