Columns Adjacent to Swimming Pool
Columns Adjacent to Swimming Pool
(OP)
I have an Arch. who want to put some canopy columns 18" from a new proposed swimming pool. The columns will be the fulcrum for a 9 ft. cantilevered roof so they have a fair amount of up and down demand. Not so much lateral as the roof will be braced against a nearby garage. Any ideas on the type of foundation I should use? I am not involved in the pool design, but I would like an idea that won't be compromised by the pool and vice-versa.
They are not sure yet if it will be a vinyl lined or gunite pool. FWIW, the end of the pool is only 12' wide and the columns will be near the corners.
Thanks
They are not sure yet if it will be a vinyl lined or gunite pool. FWIW, the end of the pool is only 12' wide and the columns will be near the corners.
Thanks






RE: Columns Adjacent to Swimming Pool
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The name is a long story -- just call me Lo.
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
I think a drilled pier may be the way to go.
RE: Columns Adjacent to Swimming Pool
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
Not sure though if the hole for the column can be drilled out and poured after the pool completes, probably not.
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
I'm no civil engineer, but that would be my concern too.
While not exactly the same phenomenon, note how threaded threaded fasteners can distort a cast iron engine block a measureable amount.
http://www.grumpysperformance.com/torqueplt1.jpg
I wonder if a full length block of styrofoam etc 2 inches thick could be placed the full height of the pool wall in the vicinity of the column to decouple the pool wall from the column piers and footing effects.
I'm guessing no matter what, if in the future cracks develop anywhere near the column footings, there are probably mitigation steps you, not the pool company, will be required to provide. I'd be tempted to add some US bucks to my bill for that eventuality.
https://www.doityourself.com/stry/tips-for-repairi...
RE: Columns Adjacent to Swimming Pool
Yeah, I'm pretty sure that the pool folks and the elevator people hang out socially. PDH conferences on how to maximize obstinacy etc.
I would like to see or hear about a cross section through the garage, pool, and these columns. I'd be surprised if your final decision on this wasn't significantly impacted by the proximity of various things, both vertically and horizontally. A combined foundation supporting both columns might make sense. There is a moment after all, it's just split into a couple, right?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Columns Adjacent to Swimming Pool
If you do a deeper foundation, i would still design the base of the column as a pin and not require the transfer of moment into the pedestal or foundation element. This will help ensure a more rigid (in rotation terms) connection where you are not imposing loads onto the pool walls.
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
Trench footings either end rotated 90° w/ a grade beam in between? Look like an I from a plan view.
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
Any way to tie the cages independently, drop them in the holes and finish shuffling ties or corner bars from the top?
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
RE: Columns Adjacent to Swimming Pool
You can barely see the outline of an awning attached to the face of the garage wall