Wednesday, November 7, 2007

Re: October Structural Engineer " Resisting Lateral Forces Cumulative overturning design"

Yeah, the "by others" is too common on those sheets. Trying to develop
a 7/8" or 1" threaded rod with a lap splice in a CMU foundation wall is
an exercise in futility. We usually end up thickening all the footings
in the area so that if (when) the embedded rods end up in the wrong spot
(too far to connect the coupling nuts) they can post drill and epoxy.

Jordan

Robert Kazanjy wrote:
> Simpson doesn't sell foundations so they probably don't care how you
> design them....maybe they give some guidance is their footnotes ;)
>
> Or the "catch all"...foundation by others.
>
> Seriously though, foundations under factory built shear walls have to
> be pretty substantial to resist the over turning and the rather high
> hold down loads.
>
> Many designs do not adequately address these issues. A generic slab
> on grade foundation won't cut it.
>
> cheers
> Bob
>
> On

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