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RC column to reduce eccentricity?

RC column to reduce eccentricity?

RC column to reduce eccentricity?

(OP)
Hello all, it's been a while since I posted, busy with work and studies.  I am faced with a 280' wide PEMB containing a large moment and reaction at the exterior footings at the slab edge.  To try to overcome this eccentricity, I was thinking of using a short RC column to support the building frame.  This column would be about 24" tall and extend from the slab to a footing (loaded concentrically) below grade.  Has anyone used this technique?  Does anyone see any problems?
Thanks!

RE: RC column to reduce eccentricity?

I'm a little curious why you have large moments for a Pre-engineering Metal Building.  If they're only due to the lateral loads times the depth to the footing, they shouldn't be real large.  And the pre-engineered building people don't usually assume a fixed at the foundation.

RE: RC column to reduce eccentricity?

(OP)
LOL, I knew I should be taking it easy on the day after labor day.  Prelim RISA calcs, changed to pin.

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