Swimming Pool Design
Swimming Pool Design
(OP)
Are there any design guides out there for swimming pool structural design? It doesnt look like any references exist and the only way to learn is by knowing someone who has already designed one.
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RE: Swimming Pool Design
www.SlideRuleEra.net
RE: Swimming Pool Design
I've already searched engtips.
RE: Swimming Pool Design
RE: Swimming Pool Design
We simply use our engineering reasoning/design skills and design the pool walls as cantilever retaining walls resisting two load conditions:
1. Pool full with water pressure on one side and earth pressure on the other (based on geotech report).
2. Pool empty (for maintenance or over the winter) with earth pressure on one side only.
Load combination 2 most always controls. We morph the footing of the wall into the floor of the tank. Joint details are critical - we use waterstops at all tank joints. That's the overall concept in a nutshell. There's detail and durability issues for the concrete of course. And the geometric design criteria you referred to in the link is also critical. We usually have to submit the pool design to an agency in our state that reviews it for health considerations.
RE: Swimming Pool Design
One problem that I've had trouble finding help on is bouyancy. I've heard the fiberglass pools have sometimes popped out of the ground like boats floating on water. The construction practice above ensures that this boat effect doesn't happen during construction
RE: Swimming Pool Design
RE: Swimming Pool Design
RE: Swimming Pool Design
The design cases you've listed are all things already in my mind. I've heard of concrete pools floating out of the ground due to bouyancy....not even from groundwater, just a leaky pool floated on up when emptied.
RE: Swimming Pool Design
Pools "pop out" of the ground for two reasons.
1. Pools get drained in areas with high water tables without removing the hydrostatic plug located in the pool's main drain. Turning the pool basically into a concrete boat.
This is usually done either by idiots working for pool companies or homeowners that are just unaware. 99% of pools have a wellpoint buried 2 feet below the main drain in the pool. This wellpoint can be hooked up to a dewatering pump that will actually dewater the earth and cease any uplift pressure.
2. Pools in areas with expansive soil conditions when subject to high rainfall amounts. Basically squeezing the pool until it pops. This is not very common due to the weight of the water and concrete- also the friction of the soil on the outside of the pool walls tends to hold them down.
You can contact www.Hornerexpress.com for your engineering plans.