Wind Force on a Ringwall Supported Tank

[Slaze]

Can someone help me by explaining how you transfer a horizontal wind force on a tank to a vertical pound per foot load for bearing sizing of a ringwall? This would be used as a component of the PT (total load on tank shell lb/ft) for 5.6.2 of PIP STE03020.

 

[JoelTXCive]

What diameter and height of tank?

Also, how embedded in the ground is the ringwall?

I've always assumed that the ringwall acts as one continuous unit; and that you would engage massive passive earth pressure to offset the lateral wind load.

This would be conservative, but you could also take a 1ft long segment of the ringwall and treat it like a footing. Then figure out what the wind related overturning moment would be; and from there get a bearing presure. I bet you would be outside the kern though, so that might not work.

 

[Slaze]

The tank is 60ft dia X 40' tall. See the attached diagram. Is the lb/ft vertical load from W as simple as?:
Wind Pressure X 1ft X 40ft = W
W X 20ft / 60 ft = Load per ft

 

[Slaze]

Forgot to add the file.