Bridges. Why they don't fall down.
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- Using a 3d printer and 9 years of engineering experience to explain bridges as simply as possible. If you find this video valuable, share it with your favorite math / science / engineering teacher(s) or family / friends.
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Corrected Title: "Bridges. Why they don't immediately fall down." They all do eventually, and many are in the US.
for your gearbox, i have an idea, use a heavy flywheel, and a clutch (maybe rip one from like a lawnmower, they have on/of switch clutches which is good for this situation) and build up speed with the fly wheel, and then enable the clutch, getting a huge burst of speed and weight for good torque, and who knows, it could explode, it could work
I love how your actually doing a deal with them. Lots of people say it’s free and then scam
I hate watching Micro Center adds, it makes me jealous. I wanna store like microcenter in my country
That was awesome! Now I must go play bridge building games
What is your favorite game ?
Poly Bridge says hi!
You should get poly bridge!
Poly bridge 1 or 2?
@@jackmaldonado1186 Both?
After the cables are all cut, the roadway is under tension, the arch under end-to-end compression.
The mass of the arch is working to open the span, tension on the roadway trying to shorten the span.
Even broke, it still works right!
Sounds legit to me 😀
Wish I could have just watched your vids instead of school lol
oh hello i watch you!
im studying mechatronic engineering, first semester and this help me out to understand tension and compression more as well as the bridges!
I teach structures to architects and I've loved it. I want to do the same to enhance their learning experience.
Super simplified and accompanied with great visuals. ❤
Short, informative, and 3D printing. Awesome
If only I would have find this video ealier.. It would have helped me A LOT for my today's exam!
I knew all this stuff already but this was still a great way of explaining it, you're kinda convincing me to do that type of work but in reality there's way too much math for my small brain haha
I wanted to be as smart as this guy and I finally figured out how!
Pay a tension in class.
this what all youtube videos should be !! 👍....... thanks ❤
That was amaizing, really. You explained it in a very friendly way for non-engineers.
I now have an urge to play bridge building games!
Great Video! But I got to say I seeing the 3D printer bed in the thumbnail and throughout the video gave me the wrong expectation. The entire time I was waiting for the flip in the script when you turned around and started applying this to 3d printing and doing better bridging haha. Was a great refresher though, and would be perfect for classes or students!
I remember covering some of this back in high school for those Popsicle stick bridge building compilations. Wasn't till I was going through my training for carpentry that the tension and compression concept really clicked. The use of the slotted blocks does it good justice though.
Very well done
Thanks!
Thats actually a really good intro video to bridges
Thx I used your project for a science project
Cool! i actually wondered earlier this day how bridges work. A bit random, huh? :)
This is the quality i was searching for. Thanks!
cool tungsten cube
Awesome video! Great explanation 👌👌
Educational
wish we had microcenter here in australia :(
First. Always been fascinated by this type of stuff, keep it up!
Awesome! I subscribed because this is educational
That's so cool
Awesome!
Amazing ❤❤
I've heard it said that among engineers bridge engineers are some even higher level of geniuses
Great video!
Arch bridges are rarely built like the way you showed. Look up a picture of the stone arch bridge.
One thing; the arch is better UNDER the bridge as you then need not worry about the snapping of the cables.
If the arch is under the bridge, then it loads the equivalent of cables in compression, and cables would be insufficient. You'd need a truss to put the arch under the bridge.
The idea is, that tension is the cheapest internal load to support, because tension only requires that your member withstands normal stress that is very close to uniformly distributed in the cross section. Compression also only stresses the members in normal stress, but an entirely new failure mode happens for compression, called buckling. Both of these loads are a lot cheaper to support than bending loads, which systematically put a non-uniform stress distribution in the cross section, which is why most bridges aren't simple platforms, except for small footbridges.
Therefore, we want as many members as possible to be in tension. And where compression is needed for the construction of trusses, we try to make the shortest members be the members in compression, to minimize the material needed to resist buckling.
If the arch is under the bridge, then it loads the members that would take the place of cables in compression, and cables would be insufficient. You'd need a truss to put the arch under the bridge, and have some rigidity to the members to resist buckling.
The idea is, that tension is the cheapest internal load to support, because tension only requires that your member withstands normal stress that is very close to uniformly distributed in the cross section. Compression also only stresses the members in normal stress, but an entirely new failure mode happens for compression, called buckling. Both of these loads are a lot cheaper to support than bending loads, which systematically put a non-uniform stress distribution in the cross section, which is why most bridges aren't simple platforms, except for small footbridges.
Therefore, we want as many members as possible to be in tension. And where compression is needed for the construction of trusses, we try to make the shortest members be the members in compression, to minimize the material needed to resist buckling.
I used to play so many bridge building games lol
Nice
When you're rich enough to have multiple 1 kg tungsten blocks...
use only a very shallow angle arc as the bridge, not the suspended horizontal plate
F=kx
arc transforms bending to compression
ie vertical to horizontal
Hello, can i have the CAD files?
I need help with my 3d printer
Could be physics could be magic idk
Damn, why’d the London one fall tho?
Name of piano song at 3:22 ?
0:04 a man fall into the river in lego city
Luckily I did watch this I am going to become an engineer.
I’m pretty sure that is all of the stone that is pulled down to the center of earth by the gravity and not one stone that is pushing down on the other stones
rip that lego man who fell in the river
a man has fallen into a river in lego city
oh no a man has fallen into a river in lego city
Aren't bridges design to not fall down
If Tarantula-Keeping like this Maybe Nice, the Middle Area - Water. They are not Dirty right? Then if they have Babies their Babies will be Safe Also Right if Water?
Maybe a Tarantula Pet House Is Good Biz?
God can do anything and anyone is welcome to go to church.
Fail testing a bridge with tungsten cubes on a glass bed wtf lol