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RE: Nashville, TN area foundation help

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Rich,
In a former engineering life, I designed foundations for several PEMB manufacturers.

The first attempt was always to use the turned down slab with the hairpins to take the thrust out of the 3 hinged arch. If the thrust was too great, or you had a feature that precluded you from using the slab as a tension tie, you went to a tie beam and spread footings. In that case it did not much matter what the edge of the slab was like.

The US Army Corps of Engineers lists the frost depth at 22" for Nashville, but you should call the local building official if applicable.

Regards,
Harold Sprague



-----Original Message-----
From: Rich Lewis [mailto:sea(--nospam--at)lewisengineering.com]
Sent: Sunday, March 27, 2005 4:42 PM
To: seaint(--nospam--at)seaint.org
Subject: Nashville, TN area foundation help

I am designing a foundation for a pre-engineered metal building just south of Nashville, TN. I haven't done any work in TN in quite a while. Most of my work is further south. For a PEMB in this area, would the foundation style be a turned down slab on ground, or is it typical to have a separate foundation wall? What is the typical depth of footing bottom below exterior grade in this area?

Thanks for your help.


Rich Lewis



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