Wire wrapped concrete basin

Basic info on the clarifier:

66ft diameter

15ft walls

Type I tank (prestressed precast concrete)

I am looking at a 6inch floor slab and 4inch precast concrete walls that would be poststressed and layered with shotcrete.

You mean to tell us that you are in a senior design class and you don't even know where to look for information on how to do the calculations? Don't you have textbooks? Didn't you get anything from lectures?

That is really lame.

GA

I have notice that at school at school the parents are doing the homework or tasks for the overworked (from playing computer games) children.

The result is that the child never learns to do something for themselves not even how to use a text book.

Even more amazing is that these lame students do qualify and are let loose on humanity.

Thanks Hendrik. I see this trend in America - probably started here first. Parents have gotten so lenient and permissive that kids are not learning any discipline - it is sad and, I believe it will contribute greatly to our demise.

Mike

Hah! yall really amuse me. If you dont know how to do the method either that is fine. Actually every pregrad reinforced concrete course (nor the text)that an upper level university offers contain none of the content offer any content on such a specific topic such as a concrete wall in full tension or the uplift due to a ground level slab. I'm sorry I asked such buffoons.

Dear Guest

That is why it was given to you - to see IF you are ABLE to do something of what they teached YOU and evaluate IF you are able to conclude, relate and assign what you should have KNOWN by now from your courses. Switch off the laziness, use your brain, - games and surfing the internet do assist in your inabilities, - only hard down to earth WORK and BRAINS.

Cheers

BLC

Oh my gosh, none of you seem to get this guy. He's just asking for some help on his design project. By my understanding of what a senior design class entails is far from simply giving the student a problem over the week's of lesson. Or even following the directions your boss gives you at work. It is a large design project they usually are given to work on all semester. Back off the attitude guys.

I would suggest going to your library at your engineering college (if you have one, or just your univ library) and going through the concrete section to see what you can find. There is a lot of useful tools in there.

I'm sorry I asked such buffoons.

If anyone has an attitude it is the OP.

True, but they really grilled into him there for no good reason. I see both points.

Being a designer you must do a lot of home/ground work and you may start here.

I looked at this site once and if you have the perseverance then you might find what you need by following all the links.

In Addition to some of the information provided thus far, you may want to look ANSI/AWWA D110-95 and D115 for background and size requirements for tanks. This will cover Wire/Strand Wound, Circular, Prestressed and Precast Post Tensioned concrete tanks.

Several tank contractors could also be a wealth of knowledge for you if they were to be involved in the construction. I can waterproof them for you, if low maintenance and longevity is a consideration for you?

Good Luck, Glenn

Find yourself the latest copy of the PCI design handbook. I think it is 6th edition. Another good resource is the Structural Engineering Handbook. That should give you some basics on pre-stressed concrete panels, beams, etc. You will also need to check out the code on concrete tank design the specifics of which I can not remember off the top of my head. (My job is engineering steel structures now, but I use to do a lot of precast prestressed panel buildings, and once did a pool overflow tank.) You will also need to find a source for Post-tensioning design codes and formulas. These Senior projects are basically more about learning how to find the information and code requirements more than the actual engineering. The actual engineering is just running formulas, but finding the necessary information used to make the decisions needed for a complete and proper design are what these projects are about. I hope this helps.

Cheers

Hello guest.

Please don't be discouraged by some of the replies you get on CR4. This is an incredible resource for engineers, students and those who work with and teach them. One expectation is indeed to do your own homework, however it just sounds to me like you are looking for a place to begin your homework.

I'm afraid I don't have a hard and fast answer for a good resource, but I think one place you might look is the American Concrete Institute. They have a lot of information and perhaps you can get a hold of something useful there.

Also, don't forget the university library and interlibrary loans. Oftentimes it's easy to overlook our most valuable resources because of the very convenient ones.

You might drive around your city and find a pre-cast concrete place (Hanson is one that comes to mind in Texas) or a construction firm that does precast stuff and see if you can chat with an engineer there. It's posible and very likely they would have some resources they could let you borrow.

And by all means...be careful how you approach the situation, you don't want them to think you want them to do your homework for you...

Call the CROM Corporation ... they have a patent on the system.