"All the commercial buildings I put up (in non-hurricane territory) were spec'ed to withstand 40
pound per square foot lateral (wind) loads.
Formula for figuring wind pressure.
P=K(Vsq.) K=.005 over 100mph,= .004 below 100mph
That translates to 175mph= 153 lb/sq. ft."
My information came from the engineer who designed the structure. I do not have the hydraulics background to contest your statement.
Remember the info from my sailing days. Sails for boats are figured at 11 kts., 1 lb/sq. ft.
40 lb/sq. ft. = about 90-95kts. ( or about 110 mph.)
In my previous post I used mph and should have used kts. So 175 mph is more than kts. Adjust the figures downward.
175 kts. = 148 kts.
148 kts. = 109 lb/sq. ft.