Concrete circular Tank
Concrete circular Tank
(OP)
PCA Tank Manual Circular Tanks
Article 18 Temperature
My co-workers tell me this is not a big concern and use silos as an example.
But when I run a FE model for the water tank - I get significant hoop stresses and hoop moments - and I cannot just let this go.
Any experience would be tremendously appreciated.
Thank you,
Article 18 Temperature
My co-workers tell me this is not a big concern and use silos as an example.
But when I run a FE model for the water tank - I get significant hoop stresses and hoop moments - and I cannot just let this go.
Any experience would be tremendously appreciated.
Thank you,






RE: Concrete circular Tank
RE: Concrete circular Tank
The question is do you include thermal loads as a load case - I have been told not required based on experience - but would like to prove this to myself first.
When I preapre a model I get signficant hoop forces and hoop larger than the forces from the water pressure.
Just concerned on how others handle this.
Thank you,
RE: Concrete circular Tank
However, you will have a temperature differential across your wall while the concrete is curing. This is significant. This will cause the concrete to expand and contract at different rates, at different locations within the wall cross section. This causes the concrete to crack. This must be considered or your tank will leak.
RE: Concrete circular Tank
-- no cover
-- no fill
-- 30 ft tall, 100 ft daimeter
-- 100 degree day and water of 70 degrees, outside of wall 100 degrees F plus, inside 70 degrees F +/-.
Is the temperature gradient 30 degrees F or do you also look at a factor "kt" to reduce this as given in ACI 313 - silos - where temperature extremes can be 400 degrees F?
RE: Concrete circular Tank