Pressure on a baffle wall

[port125]

We are designing a platform that is spanning over a waste water tank. The tank has a baffle wall with the top of the baffle wall braced back to our platform. What kind of loads will the top of the baffle put on our platform?
Our initial thought was that the flow at the baffle will be slow enough that the force to our platform will be basically negligible.
Then we started thinking about environmental forces. We have considered wind for the tank being empty, Is there anything else we could be missing?
Are there any references that will show how to calculate the forces on this?

 

[QualityTime]

Will there be a differential water level on either side of the baffle wall when in operation and when it is draining?

 

[port125]

The water level will remain the same,
They don't provide any way to close up the openings at the bottom of the wall during filling or draining.

 

[77JQX]

How about sloshing during an earthquake?

 

[port125]

Thanks 77JQX, We reviewed the tank design and they have a 2" sloshing wave height shown for seismic. Would this be just converted to a pressure on the wall 2"=10.4psf? This tank is in a low seismic area (Ohio) we were not thinking seismic at first but that is a very good point.

 

[Sawbux]

Is there aeration in the tank?
In one case I worked on, aeration caused so much turbulence in a tank that it broke the baffle wall loose from the anchorage to the tank walls.