Water storage structure

[Mcgille]

Hi,
Need to design a water reservoir about 100 ft long.Do we need to provide movement joints? What are the factors to be considered.Any help appreciated.
thanks.

 

[JAE]

At 100 feet probably not needed to have expansion joints - design per ACI 350 and not ACI 318.

 

[TXStructural]

What JAE said. Notably, you will likely end up with a higher minimum reinforcement ratio, since serviceability (crack width and distribution) controls most design.

Is this a freestanding tank or earth impounded reservoir?

 

[Mcgille]

It is an earth impounded reservoir.From ACI 350,I see higher min. reiforcement ratios as you mentioned. What will you recommend about construction and control joints requirements and spacings?