Expansion Joints in Rectangular Concrete Tanks
Expansion Joints in Rectangular Concrete Tanks
(OP)
I am designing rectangular concrete tanks and I am unsure as to where to put expansion joints. The round clarifier is easy enough. I am just putting expansion joints every 25' or 30'. ACI 350 and PCA Design of Rectangular tanks do not give guidance on expansion joints is rectangular tanks. The tanks need to be watertight.
One tank is 54'x32'x25' high. There are three cells. Two equal adjacent cells are 27'x27'. The remaining cell is 54'x5'. Where do I place the expansion joint in the long wall, at the intersection? Is one necessary if I put a lot of temp steel.
I have another tank that is 24'x20'x20' high. There are two cells. One cell is 20'x20' and the other is 4'x20'. Any recommendations on expansion joints?
One tank is 54'x32'x25' high. There are three cells. Two equal adjacent cells are 27'x27'. The remaining cell is 54'x5'. Where do I place the expansion joint in the long wall, at the intersection? Is one necessary if I put a lot of temp steel.
I have another tank that is 24'x20'x20' high. There are two cells. One cell is 20'x20' and the other is 4'x20'. Any recommendations on expansion joints?






RE: Expansion Joints in Rectangular Concrete Tanks
RE: Expansion Joints in Rectangular Concrete Tanks
The rectangular tanks don't need any expansion joints. I also recommend that be isolated (independent)from other structure.
RE: Expansion Joints in Rectangular Concrete Tanks
I meant contraction joints not expansion joints. There was a disconnect from my brain to my fingers. No contraction joints in rectangular tanks?
RE: Expansion Joints in Rectangular Concrete Tanks
RE: Expansion Joints in Rectangular Concrete Tanks
RE: Expansion Joints in Rectangular Concrete Tanks
RE: Expansion Joints in Rectangular Concrete Tanks
RE: Expansion Joints in Rectangular Concrete Tanks
RE: Expansion Joints in Rectangular Concrete Tanks
Input from the potential formwork contractor might be useful in determining the desired construction joints for practical wall construction. It might also be the difference between waterstop and lots of other details being needed or omitted.
Good luck!
Daniel Toon