Wind Load

[dik]

Any suggestions on how to apply a wind load to this. I was thinking about using the area of the top with a wind load using half the wind load value. It's not secured. Stability is provided by concrete blocks. It's going to be displayed and used by the public. The height is about 15'.

 

[jhnblgr]

My experience is with AASHTO signs and luminaries spec is what I would apply. Calculate the flat face areas and go from there. I guess you could use the shapes centroid and apply the moment arm to the base and figure the resisting moment required