×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Swimming Pool

Swimming Pool

Swimming Pool

(OP)
Folks,
I am going to be designing a project which will have an elevated Olympic size swimming pool supported on piles. On either side of the pool will be a building structure with bleachers/canopies/parking etc.

Are there any design documents/words of wisdom in designing such structures.

1. Is it better to keep the tank separate from the structure?
2. Are there any benefits to tying the slab at the pool level with the retaining wall?
3. What kind of typical reinforcing details are used for water-tightness?
4. Is it common to have pilasters or will a 12 to 14" wall work? The pool wall is 9' deep and my research tells me that the depth of water is 6'-7".

Thanks

RE: Swimming Pool

Chlorene is very corrosive (if they still use it).

RE: Swimming Pool

They will coat the swimming pool to provide the necessary surface and smooth edges.

Usually just provide concrete box to put there pool in.  Keep the slab level and they will slope the topping.

I would provide shear key and waterstop at the slab elevation.

Do not use pilasters.

RE: Swimming Pool

I have a limited structural background, so take this question as a way to instruct me in the subtleties of concrete piling design, but the swimming pool will obviously be full of water.

Most of the time.  

What happens to the fill under the piles and the piling bases when it is unloaded and the earth rebounds vertically.   Won't that upwards movement (not usually seen in a building) start cracks in the pool "containment" concrete?   

RE: Swimming Pool

Depends on all kind of things.

We just completed a pool in the UK with a reinforced concrete box detailed to resist the passage of water (its waterproof really but some minor water level changes are acceptable hence resist)

In the UK the codes are BS8007 for waterproof concrete now replaced with the relevant EC section.

1. I would have preferred to keep the tank separate from the structure you get a lot of pipes etc for the filtration system etc and its a pain to detail bars around the fittings . A separate tank is a bit expensive though considering what that whatever is retaining the soil is also in effect a tank.

2. At the bottom yes, you can balance any passive pressures from one side of the pool to the other for sliding, useful in construction stage and when the pool is empty for cleaning, water shortages etc. At the top not really.

3. Reinforcement details are much like normal, expect closer spaces more steel. You should in theory be able to do it without waterstops / hydrophilic strips in joints but I wouldn't, they don't cost much so there is very little to lose by using them (if you use them at the top of walls around balance channels just watch that they don't swell too much as you haven't got much concrete weight to stop them lifting the concrete, although the rebar should prevent this anyway).

4. Pilasters not a term I know but I expect that means vertical stiffening ribs. I would try and use a straight wall as the formwork easier and the reinforcement is easier (easy reinforcement is waterproof reinforcement, if you are going that way).


Oh and no through ties (pretty obvious) although our contractor in his wisdom decided that without through ties he need to drill holes 85% of the way through the walls at the upper levels to fix some shuttering, therefore 85% less likely to be water proof.

If you are using steelwork for roofs etc Corus do good guidance on corrosion prevent paints, If timber the GTA give good guidance.


Oh I don't know if its true but Olympic swimming pools need to be 50m so the concrete box needs to be 50m + two lots of tile and grout. I heard about a pool that cant be used for competitions as it 49.99m because of this.   

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources