Elevator safety test goes very wrong! (Machine collapse)
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- čas přidán 15. 11. 2018
- See the diagonal side supports fail first, followed by the rest of the frame.
A video that someone sent me!
As someone sent me this video, I have no details other than what you see.
Engineer was incredibly lucky to be standing behind the frame when it collapsed!
The word from my lift engineer friend is "INCORRECT TESTING PROCEDURE AND INADEQUATE FRAME STRENGTH". They don't make things like they used to!
I've built sturdier frames using Lego...
After kids in Africa and Darude Sandstorm, legos is the new CZcams joke? 😀 I see everyone talking about legos.
dude so true cant even break a piece xd
Holy cow! That was a serious structural fault. The frame on which the motor sits may be sufficient to support the vertical load but it clearly did not have sufficient lateral stability. The posts and the beams looked like they had simple bolted connections. The connection will function as a hinge if it has no stiffners or unsufficient bolts. It functioned as a house of cards. This could have been prevented if the frame had either diagonal bracing or more rigidity in the members/connection between them. This clip was a good demonstration of some rather fundamental structural engineering principles. I thought mechanical engineers knew how to design structures for mobile loads..... appearantly the one that designed this frame probably overlooked the aspects of rigidity. A lot of modern lifts also seem to have no proper chassis anymore but depend on folded sheet metal instead.
good quality comment, and 'food for thought' as I would normally say!
@@mrmattandmrchay Also it looks like they used UNP-100 profiles for the posts and the are oriented in their weak axis (if you consider the moment of inertia of the cross section). I would have used at least HEA or HEB sections and added some stiffners in the corners as well. Often you see that they place a raised motor like this on a reinforced concrete base. Concrete is much stiffer then steel and the amount of reinforcement can control the bending stiffness of the joins. Reinforced concrete is ideal to create frames that can withstand bending moments in their joins. This is ofcourse also easy to do with steel as well, if detailled correctly which was not the case here. I get the idea that lift company did not know how to engineer this properly and just cobbled something together whereas the big companies like Kone or Otis, etc have their own mechanical/structural engineers who know how to design this the right way.
That frame was properly failing. I've seen stuff in some countries that just barely holds and has humans riding it. Those should really watch this video.
In Asia, Fujitec, Sigma and Schindler lifts and escalators are now all made in China.
And they breakdown like there's no tomorrow.
Has been the norm since 10 years ago.
This is why old elevators last longer than those generics.
this particular elevator was made by the Folgers coffee company "Good till the last Drop"
I can't see how this would be a major lift company installing this 😮
Wow ! The lift engineer nearly got killed by the collapsing frame.
That frame should have been tested at the factory before shipping. That's what you get when you try to make things as cheaply as possible.
They didn't use enough duct tape.
Absolutely...
I don't see a SINGLE ziptie on this thing! WTF?
Just incredible. What a serious technical fault. Never seen anything like this.
@Martyn Watson sincerely, I've seen horrible components but never seen things like this.
A metal structure such as that should have 45 degree steel fillets at all corners to prevent such a catastrophic failure.
Anyone with little engeniering knowledge noticed that structure was weak.
Holy shit!!!! And that’s why there are inspections for a reason!
And then the robot voice in the elevator says we're experiencing "minor" technical difficulties
Wow, that’s crazy!
I wouldn't expect anything less from modern equipment!
That what happens when u dont use flextape
This happened in Turkey. A lift made by generic/lester of Turkey...
Кто от будни лифтовика?
Есть такие)
Привет народ)
Даа
Laystre Feed даров
Дима Чёрный хай
You can tell just by looking at that frame holding the motors then it sure as hell ain't strong enough to carry an elevator
That's a catastrophic failure for y'all!
Does it have Made In China printed on the side?
This is ThyseenKrupp lift machine room right??
The elevator: okay okay were falling
The rider: help pls
The heaven: ok your comming with me
EMERGENCY BREAK: NOT EVEN CLOSE BABE
Technically works as a governor?
They obviously used the wrong glue!
(Edit, kinda looks like a bad weld to me)
Was the frame bolted instead of welded? I feel like a lot of contractors can forget how much the tensile strength of bolts can actually affect things.
When will be the next video which will be quite long
Well... I would not want to be in this death-trap elevator. It's a good thing I have never gotten stuck in one. But it was close twice, let me tell:
1st time: That was at the shopping center in Aschaffenburg. I was on my way up to parking deck 8, other people wanted to leave at 6. When we arrived at 6, the doors didn't open. I tried the "" button, but that didn't do anything. So I tried to open the door by hand and that caused it to open very slowly. All the other people left the elevator. And I seemed to have fixed it, although I'm not an elevator technician.
2nd time: That happened at a parking garage in Würzburg. I rode the elevator for fun, but that almost failed, because the door at -1 didn't open. Luckily, it closed and I could go back up to the ground floor. Then I went down to -1 to call the elevator from there. Again, the doors didn't open. So I tried to slide it open a millimeter a few times and that fixed it. I then tried the elevator out, and it was working fine again.
When will you release the final broadmoor siren video? Siren M
The elevator technician is one lucky guy who moved to the side. By the way which elevator brand is it
I have seen videos of traction machines mounted on machine beams elevated above the shaft in the machine room, however these structures were massive and crossed braced to support the weight of the machine down to the anchoring on the floor. Since when do traction machines get their 3 phase power from an overhead light fixture? Some commercial installations have 277V 3 phase for large banks of lighting, however an elevator requires a separate 3 phase circuit.
You're right, the three phase motor supply is normally contained in conduit which runs up alongside the motor. I do have a couple of theories though - this is just ahead of the brake, so perhaps it's a supply for the brake or even the motor fan (if it has one) . Also, the electrical contractors probably installed the supply ahead of the lift being fitted, so without knowing exactly where to leave the containment, they left it overhead ready to be terminated later when the frame and motor was installed. I doubt whether they would have done that with a 3 phase supply though!
Unfortunately I cannot confirm or deny anything as this is just a video that was sent to me.
This may have been a modernisation job. Loads of lifts have 3 phase supply to motor coming in from above via trunking this saves trip hazards if on floor or ducking under or climbing over if in line with machine motor. If this were a mod job it would explain why trunking not yet be finished as machine would be a smaller size. The wiring to the end may be to a tacho at the end of gearbox or stop switch but hard to make out.
And thats another reason I take the stairs. No, just joking. Is it already safe if this happens? Because of the extra brake rope?
Looks like they didn’t put enough Pritt Stick on that motor
Shenlong are at it again
Was this an installation in a building? Looks like a R&D test setup, but is it?
did the elevator crash?
thank god it was a newer lift (i guess from context)
I'm actually pretty sure this is the machine of a Spanish IMEM Ascensores lift..
Jackson Lift Group: This May Happen To One of Our Lifts But Oh Well, We’re Unreliable anyway.
luck matey took that one step back that is bad for a lift company to even sell somthing like that
This bedplate generally is pretty disgusting. I mean you can tell before the video even starts that the gear is not mounted appropriately at all.
I think this lift company has two choices,first choice us to build the fame stronger which costs less,or second build the frame flimsy and destroy the motor which costs more
У нас лебедка больничного лифта кувырнулась, когда на струбцинах приподняли противовес. Тоже весело было.
When is the next video that meets mrmattandmrchay criteria?
I have 4 on the go (one I've been editing for 2 months) - waiting to record voice-overs, but I don't seem to get the time! (the usual excuses lol)
There’s something very odd about this video. I’d really like to know the background as to what’s going on here. I mean, I’m no engineer but even I know that frame doesn’t look sturdy enough. I’m also trying to work out how testing the governor can put more strain on the sheaves when all that momentum is essentially transferred to the guides. Unless it was just the extra speed that put a strain on everything. So many questions.
I think it's the sudden stop of the motor (which was rotating at full speed) that made the whole frame collapse.
psirvent8 Lucky the whole thing didn’t go through the floor.
At least the governor works !
Looks like he is in big trouble
Whoops
Whoever installed that elevator drive machine is in deep trouble.
It’s not who installed it, it’s who designed it
@@craigbliss6748 Thank you.
That guy was lucky he was standing on the other side of the governor looking at it looks like he would have been crushed by the wall and motor..
You scare me this elevator clash out of spoiled is!!!
YIKES!!
probably crapped his pants
lets just say that is a schindler 2400
the engine holder makes it really not a small intention
Holy Mother Mary!!!
WOAH
Dude go buy a lottery ticket. I've had tests go bad was that full load full speed.
Whoops, sorry...
Needs more tape
Did you see the news on line to day (BBC NEWS or USA TODAY),
An elevator inside Chicago's former Hancock building dropped 84 floors before trapping six people inside, local news outlets reported. Rescuers arrived shortly after the fall early Friday morning to cut a hole in the building's wall and free those inside.
The accident unfolded at in the 875 North Michigan Avenue building, formerly known as the John Hancock Center and the city's fourth tallest building, the Chicago Tribune reported. Guests entered the elevator after leaving building's Signature Room - a bar with stunning views of downtown from the 95th floor - before at least one cables holding the car broke.
eu.usatoday.com/story/news/nation/2018/11/19/elevator-chicagos-former-hancock-building-falls-84-floors/2056499002/
It meets china standard ?
Oh OOF!!!!!
Yeah and they're busy ripping out and destroying the older heavy elevator units SMH
This has to be in another country...
The electrical wiring does not even come close to code for american soil.
mrmattandmrchay is based in England (uk) so they have different codes, probably what allowed to something this cheap to be installed.
this isn't mrmattandmrchay's video, read the description
Nitrxgen There is still not a single country mentioned in this video, so it’s worthless to talk about “this must be another country”. Maybe MrMatt was on holiday in Dubai and his friend was in Pakistan.
British electrical safety codes are some of the safest and most stringent in the world. God knows where this is, it doesn't even look like the mech for a passenger elevator; perhaps for some kind of building hoist? I made more sturdy mechanics out of lego when I was still in nappies / diapers.
@@BritishAPT no chance that is in the UK - electrical codes are extremely strict there and enforced.
Is being done it kill someone elevator cause drop end is... What are you doing elevator motoring?!
Lol lego frame
OMG!
Looks fake don’t know if any Passenger elevator build on such a flimsy frame all machines I have ever had to lift in order to put a rope gripper have had huge H or I Beas put in place and gussets welded anyhow funny to see
Rahan bus content and more wow can’t believe they would build something so cheap I would think building codes in Europe would be just as strict as here in North America
Can some one explain what happen exactely please
In this safety test the lift car is forced to "crash" into the top of the shaft by overriding the controller. The inspector likes to see that the traction wheels will slip instead of winding up or bending the equipment. This is why this test is performed.
Normally this should not be possible at all. There are multiple safety mechanisms that prevent the controller from winding the lift car physically into the top of the shaft. But the drive must be safe beyond that even if multiple controlls fail at the same time.
To do this test, the controller has to be physically rewired.
@@jani140
Thank you so much
The guy is activating the safety governor in the motor room with his foot. This will mechanically pull in the safety gear usually under the lift car to wedge it in the shaft against the guides car travelling in the down direction. The momentum of the lift stopping at full speed has caused the weak frame to buckle and collapse. Got nothing to do with crashing top of shaft. Completely different test using buffers for terminal stopping at full speed.
Carpenteria metallica fatta proprio a CAZZO DI CANE....
Ограничитель скорости проверяется при движении вверх . Клинья на малой скорости . Инструкцию не читал - это спасло возможного пассажира . Жёсткость лебедки недостаточная при аварии.
DON'T REPLACE GOOD WORKING ELEVATORS WITH CHEAP GENERIC
The poor person conducting the test would have needed a change of underwear!!
Cmon you kidding me , is that a elevator for passengers or a dumbwaiter or this is totally bogus
I don't think this could be faked, if the guy had been standing beside the machine it would snapped his leg off. Isn't there a major artery at the top of your leg - serious injury if not death?
Yep, lots of idiots out there. Weird build.
Imagine how crapy the brand is! This should be illegal!! (I think it is)
What is this motoring????… What the hell!!!
It looks like it was made out of meccano 😳
Probably an Orona 🤣🤣🤣
Not an Orona - Orona is one of the only good Generic companies out there in my opinion
@@freerk242 They are a generic lift company because their lifts are a little bit flimsy.
@@freerk242 You might be right - I thought that Orona bought in parts for their lifts???!!! Blind VF's are generic. I say that if their lifts are not everywhere, they are a generic company. But they are a really good company!!! Have you seen their latest lift?
Agreed - I'm in the UK and I can't find an Orona near to me that has the voice :(
This is not in ohio, İTS in turkey.
Russia?
я украин пацан
Нет, конечно. Мы ещё не настолько безумны, чтобы лебёдку на из дверных уголков сваренную раму ставить))
2nd!!!
Uhhhhhh
Get what u pay for
Збс
Looks fake to me. The diagonal steelwork just falls apart. If those joints are welded this wouldn't have happened; the steelwork would have deformed. There are loads of those machine frames in service and none of the others do that. I smell a rat.
Yep, I hear what you are saying (I thought the same, as 'why' is the engineer filming?! Looks like a setup as you say). But then I had second thoughts - this guy could have been killed? I mean, he is inches away from being injured. Also, this does not look like an old installation ready to be decommissioned (e.g. he intended to smash it up/destroy it) so it's a bit weird that "he intended to destroy it". And also, going back to why he is filming, activating the govenor is not something you do every day, so I suppose you could say he wanted to film it as it may be a dramatic thing which he wanted to replay (got more than he bargained for!).
So "for me", I think this is genuine, but I repect your thought also!
@@mrmattandmrchay The more I watch it the more fake it looks. Welded joints don't just pop apart, all at once. The weld would have been stronger than the angle section itself. As to why he's stood next to it, while he trips the governor? God knows.
@@zonelocking It is most likely that the unit was only tack welded together and someone else was supposed to come along and weld it fully; but never completed the job.
Wth?
Ultra cheap elevator. Only for $7500
They do make things better than they used to... this piece of shit unfortunately was poorly made.
Cheap generic
Пхахахахахахаххахахазхх
Generic
Cheap frame poorly assembled
What a piece of crap generic lift!