HURRICANES-Degrees of Destruction

step.eng69

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Oct 12, 2021
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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





 
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Bkmtnittany1

Well-known member
Oct 26, 2021
4,543
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4 days
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 is a typical calculation of wind speed vs wind pressure.


LINKs:
https://www.spc.noaa.gov/efscale/ef-ttu.pdf






4 days in Albany?? There isn’t enough alcohol!
 

Bkmtnittany1

Well-known member
Oct 26, 2021
4,543
7,061
113
During hurricane season the NWS will not allow me to eat Busch’s Baked Beans and Pizza Perfect wings in the same day!
 

PSU87

Well-known member
Oct 12, 2021
1,715
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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






As an engineer, I appreciate the science, but trying to put up a Hurricane panel in 50kt winds is a more effective demo :cool:
 
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MtNittany

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Oct 12, 2021
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If you look outside and see something like this, it was a wind storm.




 

MtNittany

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Oct 12, 2021
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Let's see it PSU87, looking forward to the video. 🧐
Found this video of man resisting 100 mph winds, about 27 psf = 216 lbs of force

My prep is done. Went into work (course is closed) and the GM turned on the taps in the men's locker room at 8am. 7 employees mixing drinks and pouring Guinness on a Tuesday morning. Then I stopped and got a keg of Yuengling at Beer City. Old saying in the golf biz - "When it rains, we pour."
 

step.eng69

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Oct 12, 2021
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My prep is done. Went into work (course is closed) and the GM turned on the taps in the men's locker room at 8am. 7 employees mixing drinks and pouring Guinness on a Tuesday morning. Then I stopped and got a keg of Yuengling at Beer City. Old saying in the golf biz - "When it rains, we pour."
GOOD LUCK NITT,
GOD Speed to you and yours 😧
 

Bwifan

Well-known member
Oct 12, 2021
1,580
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My prep is done. Went into work (course is closed) and the GM turned on the taps in the men's locker room at 8am. 7 employees mixing drinks and pouring Guinness on a Tuesday morning. Then I stopped and got a keg of Yuengling at Beer City. Old saying in the golf biz - "When it rains, we pour."

I am headed to Cheffrey's Eats (best burger in FL, been on foodtv numerous times) and Barrel of Monks brewery they are having BOGO drafts today as pre gaming for the hurricane.
 

MtNittany

Well-known member
Oct 12, 2021
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I am headed to Cheffrey's Eats (best burger in FL, been on foodtv numerous times) and Barrel of Monks brewery they are having BOGO drafts today as pre gaming for the hurricane.
If I was in your neck of the woods, it would be Silverball Museum time for sure.
 

Bwifan

Well-known member
Oct 12, 2021
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If I was in your neck of the woods, it would be Silverball Museum time for sure.
That might be the call after a big burger from Cheffrey's and a few beers. Cheffrey's Eats burgers are insane. The burger of the month for October is crazy. He has them and all his different burgers online on social media. He is off Clint Moore near Congress Ave, his food truck is always stationed at Barrel of Monks.
 
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berklion

Member
Oct 7, 2021
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4 days

4 days in Albany?? There isn’t enough alcohol!
On a side note, I was in Hyde Park last fall. During a lull, I asked the Park Ranger how fast the Hudson flowed. He looked at me a bit confused and said that the river is tidal all the way to Albany.
 
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Steve JG

Active member
Mar 25, 2024
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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






 

step.eng69

Well-known member
Oct 12, 2021
2,840
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Barry McGuire…….
Great song from my high school days


The Eastern world, it is explodin'
Violence flarin', bullets loadin'
You're old enough to kill but not for votin'
You don't believe in war, but what's that gun you're totin'?
And even the Jordan river has bodies floatin'

But you tell me
Over and over and over again, my friend
How you don't believe
We're on the eve of destruction
Don't you understand what I'm trying to say
Can't you feel the fears I'm feeling today?
If the button is pushed, there's no runnin' away
There'll be no one to save with the world in a grave
Take a look around you boy, it's bound to scare you, boy
And you tell me
Over and over and over again, my friend
How you don't believe
We're on the eve of destruction

Yeah, my blood's so mad, feels like coagulatin'
I'm sittin' here just contemplatin'
I can't twist the truth, it knows no regulation
Handful of senators don't pass legislation
And marches alone can't bring integration
When human respect is disintegratin'
This whole crazy world is just too frustratin'
And you tell me
Over and over and over again, my friend
How you don't believe
We're on the eve of destruction

And think of all the hate there is in Red China
Then take a look around to Selma, Alabama
Ah, you may leave here for four days in space
But when you return, it's the same old place
The poundin' of the drums, the pride and disgrace
You can bury your dead, but don't leave a trace
Hate your next door neighbor but don't forget to say grace
And you tell me
Over and over and over and over again, my friend
You don't believe we're on the eve of destruction
No no, you don't believe we're on the eve of destruction
 
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