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November 24, 2017, 07:01:55 am
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Author Topic: Tornado slip thru the cracks?  (Read 1633 times)
patric
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« Reply #60 on: August 11, 2017, 01:04:10 pm »

Just read the article in the Tulsa Fish Wrapper. It will be interesting to see what the real engineers find when they inspect the building. I can see with the way that building was built (no real interior offices so to speak) that a lot of the businesses in the upper floors would be a total loss because of wind and rain from the shattered windows. I guess the thing that gets me is that I know building engineering has changed since this build was built in the late 70's especially with better understanding storm forces, and I know the building is designed to have some flex to it, but if it was only 130 MPH winds (tornadic or straight) it almost sounds like the building was designed just to meet code. Just my own thoughts, not a tin foil hat rant.

My take on the Tulsa Whirled and other media reports is that the building was designed to twist up to a certain point.  If that point was exceeded...
The theory was the elevator shaft was exposed to excess dynamic pressure and the skin ripped open as a result.

In home and small business constriction its usually a garage door that is the Achilles Heel, or debris breaching a large window that allows pressure to suddenly build up and the structure pops like a balloon.  
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"Tulsa will lay off police and firemen before we will cut back on unnecessarily wasteful streetlights."  -- March 18, 2009 TulsaNow Forum
swake
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« Reply #61 on: August 11, 2017, 03:50:21 pm »

Slightly off topic, the one building downtown that I used to hate delivering to, can't remember what it was but it's ONE Gas now, the upper floors have accordion like expansion panels in the hallways, and on windy days you could hear the panels creek as the building moved.

First Place Tower, I used to work in that building. It's really two buildings, a 41 story tower and a 19 story original building. There's a rubber gasket between the two buildings so they can sway separately in the wind. It was kind of wild to stand with one foot in each building during storms when I worked on the 14th floor.
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patric
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« Reply #62 on: August 12, 2017, 09:29:08 pm »

http://www.tulsaworld.com/news/weather/the-science-wasn-t-there-an-in-depth-look-into/article_84e84e1a-cda0-5137-a0dd-8ae2b3cfe6e9.html
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"Tulsa will lay off police and firemen before we will cut back on unnecessarily wasteful streetlights."  -- March 18, 2009 TulsaNow Forum
Markk
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« Reply #63 on: August 13, 2017, 02:35:43 pm »

It's been a week; there is no secret why the sirens weren't sounded in Tulsa---they wouldn't have made any difference, because by the time they would have sounded, the tornado was no longer in Tulsa.

Can we start talking now about whether there is better radar technology out there that the NWS should be using?  'cause beating this dead horse has become very tiresome.
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