Since we are in the hurricane season, thought it appropriate to include a few tid-bits of information on the calculations of pressures created by various wind speeds and the Degree of Destruction generated.
A typical adult's body has a projected frontal area = 8 sq. ft.
Wind pressure developed by 180 mph wind speed = 80 psf
Therefore:
If you were standing outside during this event, you would have to resist 640 lbs +/- of load (two pro DL) [8 sq.ft. x 80 psf = 640 lbs]
Several years ago, I spent four days in Albany, NY studying wind science. The classes included wind speeds, wind pressures and their impact on structures.
the classes were taught by Drs. James R. McDonald and Kishor C. Mehta, both were head of the Steering Committee
The project (DOD) was conducted under the auspices of the Wind Science and Engineering Center at Texas Tech University. Drs. James R. McDonald and Kishor C. Mehta are Co-PIs on the project.
I believe you will find the first link below very interesting; it deals with the degrees of destruction on many different houses, buildings, trees, etc. and the damage caused by various wind speeds.
View Pages in the appendix A-1 to A-66.
The second link is a graph of wind speed vs. pounds of pressure per sq ft
The third link is a typical calculation of wind speed to find wind pressure.
LINKs:
https://www.spc.noaa.gov/efscale/ef-ttu.pdf
www.bing.com
A typical adult's body has a projected frontal area = 8 sq. ft.
Wind pressure developed by 180 mph wind speed = 80 psf
Therefore:
If you were standing outside during this event, you would have to resist 640 lbs +/- of load (two pro DL) [8 sq.ft. x 80 psf = 640 lbs]
Several years ago, I spent four days in Albany, NY studying wind science. The classes included wind speeds, wind pressures and their impact on structures.
the classes were taught by Drs. James R. McDonald and Kishor C. Mehta, both were head of the Steering Committee
The project (DOD) was conducted under the auspices of the Wind Science and Engineering Center at Texas Tech University. Drs. James R. McDonald and Kishor C. Mehta are Co-PIs on the project.
I believe you will find the first link below very interesting; it deals with the degrees of destruction on many different houses, buildings, trees, etc. and the damage caused by various wind speeds.
View Pages in the appendix A-1 to A-66.
The second link is a graph of wind speed vs. pounds of pressure per sq ft
The third link is a typical calculation of wind speed to find wind pressure.
LINKs:
https://www.spc.noaa.gov/efscale/ef-ttu.pdf
Bing
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