Concrete wall thickness
Concrete wall thickness
(OP)
Hello,
I am building a water containment wall surrounding process water tanks. The wall is boxed in to form a rectangle, dimensions are approximately 500" W x 300" L x 55" H. So the maximum pressure the wall would see is 55" of standing water. The wall will have rebar going into existing concrete floor. My question is how thick does the wall need to be assuming 3000 psi concrete.
thanks.
I am building a water containment wall surrounding process water tanks. The wall is boxed in to form a rectangle, dimensions are approximately 500" W x 300" L x 55" H. So the maximum pressure the wall would see is 55" of standing water. The wall will have rebar going into existing concrete floor. My question is how thick does the wall need to be assuming 3000 psi concrete.
thanks.






RE: Concrete wall thickness
RE: Concrete wall thickness
RE: Concrete wall thickness
Brad
RE: Concrete wall thickness
RE: Concrete wall thickness
RE: Concrete wall thickness
That was a great game, huh a2mfk?
RE: Concrete wall thickness
RE: Concrete wall thickness
RE: Concrete wall thickness
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Concrete wall thickness
The existing floor will also have to be checked if the walls are cantilevering from it.
RE: Concrete wall thickness
Really? 2" post-tensioned? How thick are the strands, and what's the spacing?
Go with 12" thick, just because 12 is a good solid number, lol.
In all seriousness, if the reinforcing is doweled from the slab into the wall, you do have to incorporate the slab as some form of heel. Have you thought about adding a toe, maybe as a possibility to reduce your wall thickness? Also, depth of cover (frost cover)?
Like I said in the other forum you posted this in, it would be extremely wise to invest in a PE to do this design work for you. Experience is always a good thing, and may save you boatloads of money in case a catastrophic event happens and the wall somehow fails under the hydrostatic pressure exerted on it, including initial water impact.
RE: Concrete wall thickness
Upon reading my comment, I was not trying to come off as a jackass, I am really curious if a 2" post-tensioned wall would really work under a certain reinforcing circumstance.
RE: Concrete wall thickness
Mike was joking. A 2" wall won't work, stressed or not.
BS7,
I didn't catch the part about this wall cantilevering from an existing slab. Don't know how you would do that, as the slab would have to be thick enough and well enough reinforced to serve as a footing, and the vertical reinforcement would have to be developed into the slab, not just stuck in a bit and glued. So again, get a structural engineer involved in your design.
RE: Concrete wall thickness
This is what we use for basements over here.
RE: Concrete wall thickness
I agree, if it is a water containing structure, in which case I would also use better concrete than 3000 psi. But on rereading the thread, I took this to be just a temporary containment in case the process tanks failed.
RE: Concrete wall thickness
RE: Concrete wall thickness
Everyone needs work these days, stop hogging it all.
My first post, IMHO, was perfect and the rest of you guys had to ruin it.
Is that an industrial thing to use all inches? What's 500" x 300"? I'm not very good at math...
RE: Concrete wall thickness
"That ain't going nowhere"
- anonymous contractor at every jobsite I've ever been to...
RE: Concrete wall thickness
Sounds like he is trying to promote a simpler, more logical system of dimensioning. The next step is to use all millimetres, like the rest of the world.
RE: Concrete wall thickness
Nevermind, I won't vent here, that'd just be wrong and petty.
RE: Concrete wall thickness
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: Concrete wall thickness
All the design advice above is intended for preliminary design only and should not be taken as a substitute for professional structural engineering advise.
a2mfk,
You happy!
RE: Concrete wall thickness
Hokie- I know where you are coming from. Been to Spain a few times and hung out on some job sites lending a hand. The tape was in CM and so were the plans, so your room dimensions would be like 440cm x 300cm, and besides the Spanish it was an easy system to get the hang of.
Sometimes when doing tile and woodworking work around the house I use a metric tape because the dimensions are easier to work with and remember.
I digress. Have a good holidays everyone.
RE: Concrete wall thickness
The Spanish have still got it wrong if that is the case. The dimensions should be in mm, not cm. Dressmakers use cm, engineers use mm.
RE: Concrete wall thickness
If its good enough for Calatrava, its good enough for me!
RE: Concrete wall thickness
RE: Concrete wall thickness
Have a good christmas everyone.
RE: Concrete wall thickness
Merry Christmas and Happy New Year to everyone!
RE: Concrete wall thickness
The forum as I understand it is geared for working structural engineers (not even students) with specific questions on a problem they have, more of a push to get over the hump, than "how do I design this?"...
Its certainly not personal, and yes, there are some ball busters - even if you are a structural PE you better provide a sketch and give us all the info!!