Stadium Roof Falls in Kansas City - Massive Engineering Mistakes - Engineering Documentary
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- Опубліковано 4 чер 2024
- Explore the drama of catastrophic structural failures! Witness the North Dakota Train Disaster, Taiwan Bridge Collapse, and more. Discover the thin line between architectural ambition and disaster.
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Massive Engineering Mistakes is a riveting series that explores the daunting realm of architectural blunders and engineering catastrophes. From gravity-defying towers on the brink of collapse to bridges built upside-down and airports slowly sinking into the sea, these ambitious missteps redefine the boundaries of scientific innovation. Yet amidst chaos, the genius of human ingenuity shines, crafting solutions as awe-inspiring as the disasters themselves. Unveiling the precarious balance between triumph and failure, this show offers a thrilling journey into the world of spectacular engineering errors and their extraordinary rectifications.
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21:03 looks more like the #8 cable from left to right of center gave way from the top followed by #5, then the cascading failures began.
I'm assuming the investigators had better resolution and more data to work with, but from what I can see I hope they looked into the upper cable mounting.
Know this place well, having seen many events at Kemper. For a truly catastrophic event, also in KC, see the Hyatt Hotel bridge collapse. Something about the architects, budgets, management in KC during the 70s...just not synced
‘traffic continues «safely»´, but @44:08 the new structure’s rebar rusted and the concrete is experiencing delamination !
Grady from Practical Engineering spotted!
That stadium: the after analysis made it look like one basketball player could jump up, grab the hoop and pull the whole roof down.
🦁🦁🦁🦁🦁 THE LION WAS HERE 🦁🦁🦁🦁🦁 No. 412
😂 bei der Brücke echt jetzt eine v Formlinge Verankerung da haben aber schon ein paar duzend Planer geschlafen 💤 das war quasi katastrophe mit Ansage
Beside the obvious stadium-roof collapse not starting till 23 minutes into the video, the analysis of the of the reason for the Taiwan bridge collapse seem questionable to me...if the failure started with salt water collecting in the anchor buckets, how is it that the video shows the cables holding at the anchor points and breaking at the top of the bridge arch, while still holding at the bottom? If the failure started at the bottom, we should expect to see cables left hanging from the arch after the roadbed started to fall. Instead, we see the roadbed pulling on and snapping the cables at the top of the structure. Somebody doesn't want people to know what really happened.
Just posted a comment with the same general analysis, although with maybe less shade. You're looking at #8 from camera left to right, right?
The Majority of the tendons broke at the bottom, reflecting the investigation findings. The tendons which separated at the top could simply be from the top connections of those tendons being faster corroded than the bottom in those locations, or a result of shock from the bridge arch rebounding upwards after losing most of it's load.
Or, as is the case in reality, shit is messy and never follows a model 100%
@@ACME_Kinetics I have never understood what’s meat by directionals such as “camera left”. If we count the cables in order of the truck’s direction of travel in the video the first one to break appears to be either the 5th or 4th cable.
Since viewing this video, I search of other video of the event. This one seems to be an excerpt of video made by the Taiwanese Coast Guard, who have video monitoring for security purposes. I am assuming the investigators had the raw footage and would have need better able to determine what happened. However, it does look to me like the cables were still attached at the bottom when the bridge fell. It is possible the bottom were corroded, and broke when the bridge hit bottom, either from direct impact, or from the stress of the weight of the cables being twisted as they came to rest after the fall. But it looks to me like the finding obscures the possibility that the original cable design wasn’t strong enough from its inception, or wasn’t effectively connected at the top of the structure.
I also think it was a disaster waiting to happen, because the arch was anchored to the roadbed without any independent means of support. So if the roadbed moved, it would put a lot of stress on the arch, much like the movement of the string puts stress on a bow in archery. If that happened, it would pull on the suspension cables-the would need to get longer when the bow beings, or snap if they were not sufficiently strong, even without salt water erosion. The typhoon and earthquake gave the bridge quite a stress test before the tanker came along. That snap is what I believe happened in this case. After the typhoon and earthquake had pulled on the proverbial bow string, the cables moorings at the top were stressed…the truck was the last straw. This will happen again if they don’t take that into account.
@@kentijohnson1522 Camera (more often called audience) left just means (in this case) the view we're seeing from the video camera that recorded this. Stage left would be the opposite, or in this case if you were standing on the bridge looking at the audience/camera.
I think you have it pretty much right, although since I believe the investigation to be incorrect based on this video, I can't be sure. I'm sure the general design idea would've been fine if it were specified and then constructed correctly, as it's a relatively short and narrow span. Although lateral stress would put equal stress on the roadbed, which IMO should have been less strong than the arch itself - cracking the roadbed wouldn't put the entire structure into the water.
@@wyattroncin941 The majority didn't initiate the start of the cascading failure - the first failure did.
20 minutes into this and still nothing on a stadium roof fall...
very deceiving title
The stadium roof fail began at 23 minutes. If you didn't want to watch the previous portions, you could have advanced the video.