Corrugated Rectangular Tank

In my understanding, moment of inertia of provided corrugation need to calculated and same shall be compared with required moment of inertia.
Or
corrugation dimensions shall be finalized on the basis of required moment of inertia.
Kindly suggest.

Maybe this will help:

https://ncspa.org/wp-content/uploads/2016/07/dds19revfeb2013.pdf

If the corrugations run lengthwise, you may not need to add stiffeners, depending on why the corrugations (But this time, it is corrugated tank :) were added.

Need more info.

Mikerho,

Yes, corrugation is along the length of tank.

I request you to elaborate how to check whether the provided corrugation is sufficient for requirement.

Below is my understanding for checking / deciding corrugation dimensions:

In absence of stiffeners, unstiffened length would be same as length of tank.

Now, bending moment would be calculated considering unstiffened length (tank length) and thus this would result into requirement of high moment of inertia.

In order to satisfy above requirement, required moment of inertia < no of corrugation X Moment of inertia of single corrugation.

This is how quantity and dimensions of corrugation (trapezoidal) is to be decided.

Is my understanding correct?

If wrong than please correct me.

Please provide your expert advice.