Dear All*

Can you edify me on design of corrugated rectangular tank. Earlier i have designed rectangular tank as per Roark's formulae.

But this time* it is corrugated tank : so per my understanding it would be difficult to add stiffeners on wall.

Thus* without stiffeners bending stresses generated in the wall would be high & it would ultimately result into higher thickness.

So can we take advantage of corrugation provided on wall of tanks to lower bending stress.
If yes then how ?
OR
what is alternative for it
Also what is purpose of corrugation.

Tank dimensions (Just for information)
L=6000mm
W=1500mm
H=1700mm.

Thanks in advance for your guidance.