American Reacts to The Craziest Machine You've Ever Seen.. the SLJ900
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- Опубліковано 2 чер 2024
- original - - • Bridge girder erection...
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THUNDER BIRDS ARE GO!😂….. sorry if you didn’t get that reference 🤗
F.A.B.
Indeed bro! It really fits it!
Hmmmmm yes I do
Shows your age....and mine for getting this 😂
@@MotherGoose264 Perhaps but it was a British series. Hollywood decided to get rid of the puppets we all loved, and replaced them with actors. Pfft! The puppets were waaayyy better!
This sort of inventiveness of humans always makes me feel good.
We can be destructive, but sometimes we make awesome stuff.
@8:00 - the counter balance would've been the (up to) 900 t bridge-part, that was kept behind the anchor all the time ;)
Its called a Launching gantry. The basic technology dates back to pretty much the middle ages.
What is special with the SLJ900 is that it both transport and launch as well as support its own over hang.
Most Launching gantry use the stability of the bridge they stand on. This works great with a wood or a steel bridge. It also works great with short section concrete bridges. But with long section once, it don´t work. The load is to high.
Fully self supported launch gantry are not that uncommon either. But they get the bridge section transported to them typically on a low loader.
Now SLJ900 have a quite serous flaw. It can´t meet on the bridge and it can´t hand over work.
If you have a low loader and a Launching gantry there is a very short handover process of about 5 minutes, then the loader goes back to get a new element, and the gantry goes forward to install the element. Both teams can work simultaneous.
With the SLJ900 you still need two teams, but only one can work at a time.
This makes it to a very nitch product that really just works well when its constant getting in and out of tunnels. If you have a conventional gantry it would need to be deconstructed and transported for every tunnel, but something like a self-contained one can just drive right thru.
Of cause, the bridge segment have to be transported to the site via a low loader anyway. This makes it a bit more complicated. On the other side if the tunnel there is probobly a system that lift down the segments from a low loader and places them on the deck. Making the loading of the segments on the SLJ900 a bit complicated as well.
So generally, its not a good solution. I´m recommended against buying one if you absolutely don´t need this specific solution
Imagine designing and building something like that, just incredible
On a YT chanel called "RC Video" is a video about this maschine in RC scale. Fully working of course.
with the counter balance, it was holding the concrete and metal bridge joint as it was extending over the gap. That would be a massive amount of counter balance.
thats wild I have never seen anything like that. whoever thought of that machine I hope he/she gotta raise.
I've never seen a bridge laying machine like that. All bridge construction I have ever seen used stationary cranes that had to be moved for every section of the bridge. This thing here really is next level. It remembers me of modern railroad construction machines, but on a much larger scale.
Typically bridges like this have launch gantry's that only contain the overhead bit and the legs , but no wheels. The benefit is that they can pick up next segments from a transport truck, and they can both work at the same time, almost double the progression speed.
The downside is that a conventional launch gantry can´t go throu a tunnel. So it have to be disassembled for every tunell. This is a issue for say a rail line with lots of tunnels.
If you liked that, you might enjoy this timelapse of the “Golden Bridge” (actually more of a straw yellow) arriving and being installed in Stockholm back in 2020. It was brought in - in one prefabricated piece - on the semisubmersible heavy lift ship Zhen Hua 33, which then sank halfway so the bridge (supported on two barges) could be floated off. There are better videos of the arrival, and I know TV had good footage of the unwelding and refloating process, but this gives a good overview.
Incidentally, there’s a tiny white speck next to the little ferry dock just above the yellow crane at the far left of the video. That’s the guard hut where I was stationed during the first day of the arrival, guarding the Zhen Hua’s jetty.
ua-cam.com/video/ACRp4C2TCXc/v-deo.html
They use the new road section as a counterweight. Until the machine is fixed on the next pillar. I have a crane diploma myself. About 24 years, I work June 2 .25 years for the same company. Everything that has to do with cranes and transport! That's me. Greetings from Bunschoten-Spakenburg, the Netherlands.
They built the London Docklands light railway in the same way, once the towers were built laying the track was super quick
Have you watched the Plasser Machine doing it's thing? I first saw this 40 years ago when my husband was working on rail construction, and the kids loved going to get Dad from work, just so they could see it in action. It is fascinating. Plasser is an Austrian company and has been in Australia for about 50 years. They are leaders in track maintenance.
No only regular maintenance , they have also an entire rail/ trackbed renewal factorytrain!
At the front they pick up the old rails refurbish the trackbed in the middle and at the end they lay the relay/new sleepers and rails.
ua-cam.com/video/tmkKl594Yo0/v-deo.html
Plasser & Theurer is the exact name of the Austrian company
I love seeing these things work. They had a couple of smaller versions building the overhead rail in Bangkok and they were amazing but this one is just a beast!! 👌👌
That’s an awesome bit of kit. There’s loads of things like this that I had no idea existed. Until I started on the work site I’m on now , a year ago, I didn’t know there was a thing called a side tipper…. A semi trailer that open the roof and the side to tip off it’s load sideways and not out the back tailgate 😳
I've seen a video like this before, but this one gave me some perspective. The wheels on that machine are taller than the humans climbing around on the machine.
Looks like something SISU would build . The Over-dimension transport solutions Specialists . Amazing machine .
That vehicle is insane
That's thing is enormous looking at the people
You should look at a documentary about building the highest bridge in the world, the Milau viaduct. The distance between the pylons is huge. They had to push the sections out unsupported from above or below.
I’d say, the longer a bridge (that also uses identical spans), the more this machine makes sense.
Anyone else spot his not entirely suppressed smile while reading the words "election machine"?
This reminds me of the machines used to build to build skyrail over Murumbeena in Melbourne. It was built above an operating railway in quite cramped conditions and the spans were each made from about ten blocks of concrete which were held together with steel cables.
That is pretty impressive.
Every now & then, you really need to stop & have a good look at the amazing things, humans do.
From mining the minerals out of the ground, to making the tools, then the machines, parts etc & putting it all together to make it work.
Humans are truely amazing.
👍
Check out the construction of the Cetina bridge in Croatia, which is currently build. The two parts were moved into place from both sides (at first they had a significant difference of their height level) but could be mated shortly.
before you even start to make this machine you have to imagine the entire process! That in itself is incredible.
It works, because, they using the metric system. 😉 😂
Go have a look at iron ore wagons being emptied in Aussie
Not only is it important to get the length of the bridge girder right but the position of the bridge pylon as well must be pinpoint accurate or the whole lot would be a massive fail. And the pylon is standing out in midair having been stood up from goodness knows how far below.
Great video, I love myself a good machine. I am a printer(old style) and work on many different machines, we even have two 75 year old machines, just great mechanics, still works like a beauty, love working on them.
This is very clever.
But - and this is just a guess - the pillars and the road elements have to be build a lot stronger, than usual. The footprint of this giant, is very small. Just look at the video at 3:40. The rear wheels are in the middle of the previous road section. You probably have something like a few hundred tonnes or more of weight, plus the weight of the new section. All this on a foot print if a few normal trucks.
Any engineer, please correct me, if I'm wrong.
Nice work guys
They used a system like this when they built the Westagte Bridge in Melbourne but the sections were much smaller. It is a fairly common system these days but no less amazing.
In the region of Vancouver, British Columbia Canada. We have elevated public trains. They are all built in this manner. Pre-built off site or in dedicated area. It's quite interesting to spectate within a city core. Very short clip from vehicle passing by, but shows ours being built in segments: ua-cam.com/video/rCgjnujs5Mg/v-deo.html
You missed the small cars behind the machine. I've seen chines films many years ago how they build bridges like that. It's an incredible machine.
You should look up how they make the sky cranes grow taller
Yeah I've actually got to see them in operation as we've had a few of them built lately
One section can take about a week to position from memory
You think about everything thing we use has come from people's minds a thought and then put into practice
If, on top of that, they had a nice government that helps people rather than destroys them, it would be a great country to live in.
eeeh... yea.. then this might not be the best example.
I love the way they just get stuff done. And on time and under budget usually. Same in Japan. They even apologise to the public if a day over. Meanwhile here in the uk. Its the opposite of that lol
I think you should check out any mountain of hell race, its a mass start mountain bike race, its nuts
Awesome 🤠
It looks as though, once the weight of the track is removed from this machine, the front would be too heavy and it would pitch face first into the void!
all be it mind blowing but remember its just prefab simply used casting areas to make each section
G'day Ian, now how do they move it from site to site? most likely take about 2 weeks to break it down, just so it can be transported to the next site, and then reassemble it.
Im wahrsten Sinne des Wortes ein Brückenkran.
I don't know if you ever heard about the hungarian fire fighting vehicle called the "Big Wind", but it will amaze you for sure. 😉
So, after seeing your comment I looked up a youtube featuring this machine. Fascinating conversion of a tank to a firefighting mean machine!
@@lightbearer313 absolutely! It's a love child of a tank and a fighter jet.
Interesting and yet how would they do if the bridge had a bend in it.
Try the high output train tht we use in the uk and many other countrys
I wonder if it has ballast tanks, like a ship?
you have interesting glasses, they actually look like safety goggles. :p But yeah, as person who has welded constructions for skyscrapers and huge machinery, everything is measured in milimeters , and you can have like max mistake of like 2mm per metre on stuff that is long and huge. And there are actually made adjustments on site for all the small mm mistakes.
great vid have you seen the building of the millau bridge over the tarn gorge in france
4:24 they know they get it right cause they use the metric system 😁😅
casts dude casts this is how they are just right
SLJ900 pfft…
Nothing compared to the SLJ960x😉
Do you hate them for not using the SLJ960x?
@@automation7295 No. I’m Australian
Another one at Alford’s Point! ua-cam.com/video/XuV8r-1cejs/v-deo.html
Giant Tunnel drillingmachine with explanation:
ua-cam.com/video/htVqxyyFoVo/v-deo.html
maybe the next reaction is the bullet train.
How they put it right? Simple: mathematics.
So sad its not over 9000...
Made in Germany ? Where does it happen ?
China
You don’t seem to know the significance of todays date in Australia?
No !!! That is by FAR not the craziest machine ever that is peanuts.... you want to check out what we Dutch make at ASML, we make the machines that allow YOU yankee boy to watch this video oh and the machines that allow you to euhhh FLY a plane oh and DRIVE YOUR CAR oh and to use your cellphone, we create the machines that allow you to LIVE !!!!!! Those machines are 300.000.000 a pop and only a handful of companies can afford them anddddddddd you are showing us a SIMPLE contruction machine that EVERY Higschool student can build ? At least our students !!!!! ARE YOU JOKING mate ????????? Ey ? Are you kidding ????????? hahahahaha you yanks...... what to do with you ...... sigh....................
Sydney built a bridge that looks similar, but was constructed in a very different way. It has changed the area from a bottleneck into freely flowing traffic that’s much faster and a joy to drive! Meet the Woronora Bridge! Wiki page: en.wikipedia.org/wiki/Woronora_River_Bridge
And video: ua-cam.com/video/O3s3-6qho0o/v-deo.html
Where do they put that thing when it`s not building bridges ?
they don´t. They just start building and keep building