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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