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Re: Pier and grade beam foundation systems

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In a message dated 4/7/98 5:36:33 PM, John Buchanan wrote:

<<The standard of care for the area has always been to use an 8" x 18" or 24"
deep concrete grade beam with #3 ties and 2 #5 bars top and bottom. The
beam reinforcing varies per the vertical load. Typically the piers are
spaced at eight to twelve feet on center.
Do (vertical and lateral) loads, downslope soil pressure, soil capacity,
seismic ductility, etc., have any place in this, or it is all just a concrete
version of "Conventional Construction" provisions that aren't engineered, just
followed--like a cookbook?  

By the way, where are you located? 

Ralph Hueston Kratz, S.E.
Richmond CA