|
Gorilla Salad posted:Jesus, that one person who stayed on at 47 seconds and just got loving whipped into the mass of broken chairs. Holy poo poo, I didn't even see him 
|
#
?
Mar 16, 2018 15:51
|
|
|
|
| # ? May 17, 2024 17:36 |
|
|
Snowglobe of Doom posted:Huh, I guess they don't always land on their feet Lol thats the title of the imgur post you big phony.
|
|
#
?
Mar 16, 2018 15:57
|
|
|
I guess the lift wanted to show that it can shred too.
|
|
#
?
Mar 16, 2018 16:11
|
|
|
Trabant posted:Was about to say the same thing... RIP that person. It's like one of those life lessons. When 50 people are screaming for you to jump, maybe you should jump. The other lesson is that I've NEVER trusted those things, as well as the train car style ones, and I was right to do so.
|
|
#
?
Mar 16, 2018 16:15
|
|
|
Ak Gara posted:It's like one of those life lessons. I feel a little sick after watching that.
|
|
#
?
Mar 16, 2018 16:24
|
|
|
When I was younger and just learning how to ski/snowboard I had to fight myself from freezing up to just get off a ski lift that was operating normally because I was terrible at it. Even as a teenager who learned to do it properly and only occasionally plant my face/butt into snow that dread from being a kid was always somewhere in my brain. Can't tell at all the age of that person but, especially if its a younger person, freezing is just something that happens in bad situations no matter what people are yelling at you (yelling can even hurt the situation). Unfortunately panic is a response that didn't have ski lifts in mind. Edit: What's a train style ski lift? Like a gondola?
|
|
#
?
Mar 16, 2018 16:34
|
|
|
Snowglobe of Doom posted:Huh, I guess they don't always land on their feet I'm the spilled diesel fuel and hydraulic fluid that won't ever ever get cleaned up properly.
|
|
#
?
Mar 16, 2018 16:36
|
|
|
https://www.youtube.com/watch?v=EcPTcQpkso4 edit: dammit I'm slow Over There fucked around with this message at 19:13 on Mar 16, 2018 |
|
#
?
Mar 16, 2018 17:06
|
|
|
 
|
|
#
?
Mar 16, 2018 17:15
|
|
|
https://www.youtube.com/watch?v=u4WPSZojtyE It's long, but it's rad as hell.
|
|
#
?
Mar 16, 2018 17:23
|
|
|
8 injuries but no deaths luckily
|
|
#
?
Mar 16, 2018 17:24
|
|
|
Ornamental Dingbat posted:Apparently one of the crane operators was overheard saying that they accidentally dropped a "Big Blue Box" on the bridge, causing the collapse.  says they try to pin this entirely on that crane operator, but that doesn't track in my head.I mean, a full bluesafe would basically be a small wrecking ball, but a properly built bridge would be able take that hit without failing completely. Just look at the early years of 11'8"; taking hits from a direction it was never meant to be stressed from like a champ. This span could just barely handle it's own weight without support. As if it was only strong enough to stay in place while the cables were being attached. It was basically a deadfall trap waiting for a trigger. I'm not an engineer of any kind though. Could some edumicated goons weigh in on this? Moto42 fucked around with this message at 17:55 on Mar 16, 2018 |
|
#
?
Mar 16, 2018 17:49
|
|
|
Moto42 posted:
The bridge wasn't scheduled to open until 2019 so I think it was far from the point of being properly built.
|
|
#
?
Mar 16, 2018 17:53
|
|
|
Yea, that's what I was getting around to. No-one should have been going under/over this thing.
|
|
#
?
Mar 16, 2018 17:56
|
|
|
https://www.youtube.com/watch?v=ioC61QW7SHQ AVE guesses that it's an issue with pretensioning and the fact the centre support wasn't there or the installation fixtures were proper hosed. That being said - was this open to the public?
|
|
#
?
Mar 16, 2018 18:01
|
|
|
Snowglobe of Doom posted:Huh, I guess they don't always land on their feet Reminded me of this garbage GIF I made aeons ago: Slow & The Tedious - Dozer Drift 
|
|
#
?
Mar 16, 2018 18:09
|
|
|
Moto42 posted:
Well, how did the box fall? If the crane was still standing and the rigging broke and dropped the box, that's the fault of the rigger(s) who used improper or deteriorated rigging for the load. If he did something like slam the load onto the bridge, that's either his fault or mechanical failure. Anyone know what the crane was?
|
|
#
?
Mar 16, 2018 18:14
|
|
|
Slotducks posted:That being said - was this open to the public? no, construction wasn't completed yet. they had just installed a whole prefab span which is a technique that's been used dozens of times elsewhere but something went wrong here
|
|
#
?
Mar 16, 2018 18:15
|
|
|
Slotducks posted:https://www.youtube.com/watch?v=ioC61QW7SHQ Structural engineer checking in. Typical cable-stayed bridges like this have a standard construction procedure: 1) Build the tower. 2) Build the road deck outward from the tower, supported by cables from the tower like this:  3) Once everything is supported by the tower, you are pretty much done. Here, though, they didn't want to do 2) so they don't close the road very long, instead designing the deck to support itself before the tower/cables are constructed. But the span without cable support is far weaker in bending than a purpose-built beam-type bridge. My working theory is that as a rush job on a tight budget, the engineer sharpened his pencil and designed the span with very small safety factors during construction. Maybe they forgot a construction live load, or there is some flaw in the prefab deck, but the video showing the collapse shows a fair number of workers on the span where it failed. The engineer likely never thought to consider people/materials being staged on the span. Blindeye fucked around with this message at 18:31 on Mar 16, 2018 |
|
#
?
Mar 16, 2018 18:29
|
|
|
Blindeye posted:My working theory is that as a rush job on a tight budget, the engineer sharpened his pencil and designed the span with very small safety factors during construction. Maybe they forgot a construction live load, or there is some flaw in the prefab deck, but the video showing the collapse shows a fair number of workers on the span where it failed. The engineer likely never thought to consider people/materials being staged on the span. This was my best guess too. Lots of rumours going around but I've heard a few people from various sources mention that they had just recently put some material delivery or some live load on the bridge before it collapsed.
|
|
#
?
Mar 16, 2018 18:32
|
|
|
See what I'm really waiting to hear is if we get an ID on that crane operator, because we do a lot of certification down in Miami and there's one particular training institute there that we hear bad stuff about. I want to know: 1. Is this one of our guys 2. Did he got through this trainer
|
|
#
?
Mar 16, 2018 18:34
|
|
|
It's absolutely fascinating how quickly I've seen the engineering community do a really in depth look at a structural failure. Basically every Engineer I've talked to the past couple days brought it up rather quickly unprompted.
|
|
#
?
Mar 16, 2018 18:34
|
|
|
Slotducks posted:It's absolutely fascinating how quickly I've seen the engineering community do a really in depth look at a structural failure. We all get very excited/outraged about engineering failures on a brand new structure. Buildings fall down far less often than most other things we use, and the consequences are grave. Edit: I don't really agree with the Armchair Engineering assessment. He gets a lot of details wrong: - Prestressed concrete tendons are intentionally not bonded to the concrete, that's what rebar is for. Not sure why he mentioned bond. - The bridge didn't fail at center span. Now, that doesn't make construction QA not a potential cause, but he gave a very layman's description of concrete behavior. Blindeye fucked around with this message at 18:49 on Mar 16, 2018 |
|
#
?
Mar 16, 2018 18:41
|
|
|
Kibayasu posted:When I was younger and just learning how to ski/snowboard I had to fight myself from freezing up to just get off a ski lift that was operating normally because I was terrible at it. Even as a teenager who learned to do it properly and only occasionally plant my face/butt into snow that dread from being a kid was always somewhere in my brain. Can't tell at all the age of that person but, especially if its a younger person, freezing is just something that happens in bad situations no matter what people are yelling at you (yelling can even hurt the situation). Gondola lift thing, yeah. They're probably the same design-wise as a ski lift, and I might be wrong but in my mind, a ski lift follows the ground all the way up the mountain using multiple support columns so you're only really as high as the top of the support column.  But these:  I'm like "Oh I guess I'm walking up a mountain today"
|
|
#
?
Mar 16, 2018 19:11
|
|
|
Ak Gara posted:Gondola lift thing, yeah. Second category is a lot safer tho.
|
|
#
?
Mar 16, 2018 19:16
|
|
|
spankmeister posted:Second category is a lot safer tho. Except when the flyboys show up
|
|
#
?
Mar 16, 2018 19:18
|
|
|
ExecuDork posted:That is super cool! Any chance any of that is online somewhere? I need to get it digitized at some point, and when I do I'll stick it on YouTube.
|
|
#
?
Mar 16, 2018 19:28
|
|
|
spankmeister posted:Second category is a lot safer tho. Not always! https://www.youtube.com/watch?v=woDyKekeTTg
|
|
#
?
Mar 16, 2018 19:31
|
|
|
Slotducks posted:
It was open to the public, yes. Underneath it.
|
|
#
?
Mar 16, 2018 19:34
|
|
|
Nerses IV posted:Except when the flyboys show up At least that answered the age-old question 
|
|
#
?
Mar 16, 2018 19:50
|
|
|
Speaking of which: https://www.youtube.com/watch?v=0neNZ3CmbGM Edit: kind of  , don't know if anybody actually got killed on that.
|
|
#
?
Mar 16, 2018 20:01
|
|
|
Vargatron posted:Speaking of which: You've got that right. Check the rest of the page
|
|
#
?
Mar 16, 2018 20:04
|
|
|
Sorry for the doublepost 
|
|
#
?
Mar 16, 2018 20:08
|
|
|
People keep pointing out the lone rider getting slammed into the twisted pile of chairs, but before that, watch the chair with four people still on it. One dude gets thrown OFF TO THE SIDE like, 20 goddamn feet.
|
|
#
?
Mar 16, 2018 20:11
|
|
|
I'm telling you any time I watch a vid where there's a Russian dude yelling blyat I know things are about to get really hosed up.
|
|
#
?
Mar 16, 2018 20:14
|
|
|
Vargatron posted:Sorry for the doublepost Triple post, I missed the first one as well. It's just that crazy that we all rushed to this thread with it!
|
|
#
?
Mar 16, 2018 20:17
|
|
|
Vargatron posted:Sorry for the FTFY
|
|
#
?
Mar 16, 2018 20:18
|
|
|
Wasabi the J posted:People keep pointing out the lone rider getting slammed into the twisted pile of chairs, but before that, watch the chair with four people still on it. One dude gets thrown OFF TO THE SIDE like, 20 goddamn feet. Yea but to land in the snow Also i am in awe of the level of engineering, normally it costs a ton of money to upgrade a chairlift to be a detachable quad, this is some serious cost-saving
|
|
#
?
Mar 16, 2018 20:23
|
|
|
Nerses IV posted:Except when the flyboys show up http://www.nytimes.com/1998/02/04/world/20-die-in-italy-as-us-jet-cuts-a-ski-lift-cable.html USMC ooh rah Edit: here's a part of the story I didn't remember quote:The lawyer representing a U.S. Marine officer being investigated in a cable car accident was beaten to death outside her office in what appears to be an unrelated case. http://www.cnn.com/WORLD/9803/06/italy.cablecar/index.html FuturePastNow fucked around with this message at 20:28 on Mar 16, 2018 |
|
#
?
Mar 16, 2018 20:26
|
|
|
|
| # ? May 17, 2024 17:36 |
|
|
FuturePastNow posted:http://www.nytimes.com/1998/02/04/world/20-die-in-italy-as-us-jet-cuts-a-ski-lift-cable.html quote:Many people say the military planes even play games by actually passing under the cables of the ski lifts,'' said Mr. Andreotti, who was among officials who arrived here this afternoon lol that seems a little risky but what do i know also, calling flying under a ski lift cable in a jet at 500mph "Passing Under" is the understatement of that year. Tumble fucked around with this message at 20:34 on Mar 16, 2018 |
|
#
?
Mar 16, 2018 20:31
|
|