I hope you enjoyed the Arch bridge video. Lesics is currently fighting for survival - www.patreon.com/Lesics . Your support matters a lot to me and my team. You will also get access to exclusive engineering videos. Thanks Sabin
It's getting ridiculous with the Americans taking over all of the videos we can't even hear about the Sydney Harbour bridge without hearing a Yank who can't pronounce words correctly . And of course you make the video last as long as possible so UA-cam will give you money. getting sick to death of hearing your accent I really am. You may love the sound of your own voice but we don't
I love the circular vs parabolic demonstration yall did at 1:32 it made it really puts to perspective what a shape change would do keep up the good work
@@janami-dharmam I have been taught in my mathematics classes that the curve is a catenary. When you say "parabola is an approximation" do you mean that engineers make that approximation out of need for convenience, or do you mean that mathematically there is a similarity between the two curves❔
@Jack_Callcott_AU, A catenary shaped hanging chain is just a real world illustration for principles that are still applicable to an arched bridge with a parabolic shape. And since the shapes are slightly different, so will the mathematical functions that model them.
The International System of Units uses metric. So I think you should add METRIC units on your phyisics and engineering videos to be even more pro. BTW superb video, LOVE IT !
The harbour bridge was built by Dorman Long - Middlesbrough UK. My 98 year old Grandfather became the head engineer for this firm and worked with the engineers of the harbour bridge in the fourties and fifties.
Some of us would appreciate greatly if conversions to SI were included. 7 inches? 160 feet? I had to Google it and it is quite a pain in the arse. Anyway, great video as always.
I love the quality and effort to put the every Detailing in the video love you never end this. You are awesome. Very very very very very much love and respect for you and your team.
i remember watching the build of this in school and one of the things i found most interesting is they learnt what the benz was from digging in the pillars
The Bends or Caissons Disease is what was experienced by workers when digging out the piers for the Brooklyn Bridge in NYC. Those piers are more than 40 feet below the water and the pressure created the bends conditon.
Thx. I learned several new things (I took several years of Structures at Uni level/Architecture). As to the SHB, I've been over it a few dozen times - -but still knew very little about the process, or thought behind it. Special mention: your video is well-pitched to noobs (excuse the expression, but it so fits!) - and I really liked that you put questions to the viewer. Engaging the viewer keeps attention and empowers. All most excellent. Fab CGI, too!
The Sydney harbour bridge didn’t have 4 railway tracks. It had two railway and two tram tracks. When they shut down the tram system they converted the tram tracks to extra lanes.
Yes but they did put locomotives on them and as per the original plans they had always intended for the tram tracks to be turned into railway tracks when the demand was there, that just didn't happen because by 1958 cars were "king"
I had a confusion at the beginning when you said the parabolic arc was the strongest structure, precisely because it should be catenary. Thanks for clearing it up.
catenary curves and parabolas have slightly different equations, and it's catenary that are the primary curves used in self supporting structures ;) They're very similar in shape and _sometimes_ are interchangeable, but they are two different things.
USA built the America’s bridge over the south entrance of the Panama Canal…… It is beautiful and huge! They used the parabolic design. Regards from Panama 🇵🇦!!!
this was an extremely advanced and impressive feat for Australia back in 1932. Australia has always been a bit behind the rest of the developed world(not anymore) so its amazing that we pulled this off so early.
50 years ago, the elastic instability of complex structures ( S. Thimoshenko ) was only making its way into bridge engineering practices. This condition of lateral instability is observed on the members at the shear strains maximal values. Here it would likely be occurring near the anchoring pillars. In a similar bridge Laviolette in 3 Rivers, Quebec, Canada, some undisclosed plastic deformations were observed also near the pillars and main posts. This is also a situation for most high slenderness index cantilever bridges. The iconic Quebec bridge my neighbour is observed in my own photographic inquiry for the third time in elastic instability and well in a plastic buckling bound for a third collapse catastrophe now in progress.
At the time the Bridge was constructed the system used in Australia was the British Imperial one.The engineering was largely British as was the steel used
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
I hope you enjoyed the Arch bridge video. Lesics is currently fighting for survival - www.patreon.com/Lesics . Your support matters a lot to me and my team. You will also get access to exclusive engineering videos. Thanks Sabin
It's getting ridiculous with the Americans taking over all of the videos we can't even hear about the Sydney Harbour bridge without hearing a Yank who can't pronounce words correctly . And of course you make the video last as long as possible so UA-cam will give you money. getting sick to death of hearing your accent I really am. You may love the sound of your own voice but we don't
I love the circular vs parabolic demonstration yall did at 1:32
it made it really puts to perspective what a shape change would do
keep up the good work
the curve is actually called a catenary, parabola is an approximation.
@@janami-dharmam aka narrow block
@@janami-dharmam I have been taught in my mathematics classes that the curve is a catenary. When you say "parabola is an approximation" do you mean that engineers make that approximation out of need for convenience, or do you mean that mathematically there is a similarity between the two curves❔
@Jack_Callcott_AU, A catenary shaped hanging chain is just a real world illustration for principles that are still applicable to an arched bridge with a parabolic shape.
And since the shapes are slightly different, so will the mathematical functions that model them.
@@Dragon-Slay3rxx❤
I love how this channel gets so into depth!!
I like how Vande Bharat Express is running over Chenab Bridge 😅 hope to see that soon 🤞🏼🤓
Vande Bharat is lighter train
I don’t understand. A parabola is not a catenary. I know they are close but a horse is not a cow. Isn’t this unscientific?
@@ProfFeinman We have mentioned this fact, I hope you missed it 03:50
@@SabinCivil Please make a video on Howrah Bridge(Rabindra Setu) ; Kolkata ; India
@@SabinCivil 08:50
i went to school near this bridge and you answered a lot of questions i have had for twenty years. Thank you!
A video covering the chenab bridge, India would be highly appreciated.
Great work!
You made it so easy for lay audience to understand something so technical. Excellent work, keep it up.
The International System of Units uses metric. So I think you should add METRIC units on your phyisics and engineering videos to be even more pro. BTW superb video, LOVE IT !
Honestly, Your channel makes structural engineering more & more interesting
I can't stop myself to continously watching your knowledgable videos.
This is why Lesics is a FEATURE Channel on my UA-cam channel. Great art work Lesics, more of this. 👍
The harbour bridge was built by Dorman Long - Middlesbrough UK. My 98 year old Grandfather became the head engineer for this firm and worked with the engineers of the harbour bridge in the fourties and fifties.
It’s a brilliant bit of Engineering Construction 🇬🇧
This is awesome. And just like at 6:20 it's amazing what is learned over time when population and technology expands.
Those videos are very satisfying to watch. Very well explained. Nice work, good job
A video covering the Howrah Bridge of West Bengal, India would be highly appreciated.
A bridge that stood the test of time!
Great work!
Such a awesome explanation ❤ big salute for your huge effort....
Some of us would appreciate greatly if conversions to SI were included. 7 inches? 160 feet? I had to Google it and it is quite a pain in the arse. Anyway, great video as always.
times it by three and add your favorite number divided by two for metres :)
@@Jayesk "add your favorite number"?
Such lucid and simple explanation for complex engineering marvels! Amazing works, Mr. Sabin🎉!
Suggestion @Lesics, can you put also metric system in your videos. That's easier for the 90% of the world population to understand :) Thanks
You're very right 👍
Yah, we also have moved to metric units :)
I like the way you give details about things. Thank you Lesics
Can you also add metric measurements in the next video? Thank you for your work
i have a microbiology tomorrow and here I am learning about bridges!! , nice !
This is really interesting
Wow what a satisfactory and most brilliant construction, I am more than happy with your detailed presentation..
Thank you
The effort you put in explaining the science is as meticulous as the real construction itself. I was stunned and forgot to sit straight
I love the quality and effort to put the every Detailing in the video love you never end this. You are awesome. Very very very very very much love and respect for you and your team.
FANTASTIC VIDEO , YOU MAKE EVERY WITH DETAILED ANALYSIS AND MAKES EVERYONE UNDERSTAND THE ENGG. CONCEPTS IN SIMPLE WAY
Masterpiece of engineering
@Steve Robinson why not
One of the best videos on Engineering 👍👍👍👍
Wonderful Presentation. ❤
Beautifully Explained Thanks for sharing such informative videos, Kudos To Your Work ✨💥
one of the best construction animated video ever seen
i remember watching the build of this in school and one of the things i found most interesting is they learnt what the benz was from digging in the pillars
The Bends or Caissons Disease is what was experienced by workers when digging out the piers for the Brooklyn Bridge in NYC. Those piers are more than 40 feet below the water and the pressure created the bends conditon.
This man never disappoint us
Awesome video. Explains much better than some teachers
Man, this channel taught me a lot
Awesome! Goes nicely with discussion of parabolic shapes in RealEngineering channel's video on the Sagrada Familia.
I'm happy that I'm watching this great animated explanation
Thankyou!
Omg what an explanation!!!!😍♥️
I don't know why I can't help but love your videos...
Wow!!!! Amazing video and amazing channel. Excellent explanation and cool animation. Keep going.
The harbour bridge isn’t a parabola - it’s a catenary curve inverted (a hyperbolic curve).
A parabola and hyperbola are significantly different.
Yep normally I use a cosh function this, this video is full of wrong information
Jip! Cables hang in a hyperbolic curve.
@@markoj3512nahh bro thins everything is wrong💀💀💀😎😎
We need more of these, thanks for the video.
Explained in a perfect way.👍👍
Nice. I love engineering.
As always, an incredible video!
Tnx Bez of this video I have great talk with my dad about engineering
It would be fascinating to see the hinges marked off in degrees or another way so that the keen observer could appreciate the science involved.
It doesn't change by much, if the top is only 7 inches different across the year, I can imagine that those hinges move by less than a single degree.
I do not think you can make out visually.
I'm not a engineer student but I learn something new from your video. Thanks SIR💙
This is gonna help me in poly bridge 2
Amazing video, thank you. Please tell why a parabolic shape is used instead of a catenary?
3:50
sambil minum kopi pagi nonton tayangan yg berdaging emang asiikk....mksh ya atas kontennya...bermanfaat banget
Thanks for sharing 👍❤️!
I, as a man, feel proud. Yes, we built this world and I am proud of it.
woww... this is very cool, the explanation in the video is very clear
That's amazing
This is why, the strength of materials is very important to learn.
This is right up my street. Thanks
Thx. I learned several new things (I took several years of Structures at Uni level/Architecture). As to the SHB, I've been over it a few dozen times - -but still knew very little about the process, or thought behind it.
Special mention: your video is well-pitched to noobs (excuse the expression, but it so fits!) - and I really liked that you put questions to the viewer. Engaging the viewer keeps attention and empowers. All most excellent. Fab CGI, too!
Very good video! 😁
I like your references of Indian technologies
The animation is awesome!
rce has to watch this
Keep making these videos they are awesome
The Sydney harbour bridge didn’t have 4 railway tracks. It had two railway and two tram tracks. When they shut down the tram system they converted the tram tracks to extra lanes.
Yes but they did put locomotives on them and as per the original plans they had always intended for the tram tracks to be turned into railway tracks when the demand was there, that just didn't happen because by 1958 cars were "king"
were replaced by roadways as per video.
I had a confusion at the beginning when you said the parabolic arc was the strongest structure, precisely because it should be catenary. Thanks for clearing it up.
Mulțumim pentru video si informații foarte importante și de baza
It's super Impressive!!
catenary curves and parabolas have slightly different equations, and it's catenary that are the primary curves used in self supporting structures ;) They're very similar in shape and _sometimes_ are interchangeable, but they are two different things.
If I had watch this channel when I was younger. I would have definitely studied architecture at the university.
🤯 Amazing, simply amazing, I doubt that this would ever be made in the USA because of it's design and safety, and money.
Fun fact, the chief engineer of the Sydney Harbour Bridge was inspired by New York's Hell Gate Bridge.
Thank you for this detail analysis
USA built the America’s bridge over the south entrance of the Panama Canal……
It is beautiful and huge!
They used the parabolic design.
Regards from Panama 🇵🇦!!!
I like both below and above deck arch bridges
Yes, clearly they are best
Salute to the Lesics team for constructing the entire bridge again just for us 😊😊
I am from India 🇮🇳 bro. I watch your videos, your videos are very knowledgeable. Love you BROTHER ❣️👍😊
Lol he is also from India 😆are you new here?
I learned civil engineering in 9:59 👏🏻
Brilliant history cool video mark😊😊
Pls upload more videos 😊
These videos are so awesome
this was an extremely advanced and impressive feat for Australia back in 1932. Australia has always been a bit behind the rest of the developed world(not anymore) so its amazing that we pulled this off so early.
50 years ago, the elastic instability of complex structures ( S. Thimoshenko ) was only making its way into bridge engineering practices. This condition of lateral instability is observed on the members at the shear strains maximal values. Here it would likely be occurring near the anchoring pillars. In a similar bridge Laviolette in 3 Rivers, Quebec, Canada, some undisclosed plastic deformations were observed also near the pillars and main posts. This is also a situation for most high slenderness index cantilever bridges. The iconic Quebec bridge my neighbour is observed in my own photographic inquiry for the third time in elastic instability and well in a plastic buckling bound for a third collapse catastrophe now in progress.
So nicely explained
Thanks lot, much interesting video, Good luck to all!)
Awesome video! Thank you!
It would be good to have the metric system used also being Australia use this system
At the time the Bridge was constructed the system used in Australia was the British Imperial one.The engineering was largely British as was the steel used
Very knowledgeable video sir 👍👍
For anyone that doesn't live in Australia, it's just the sydney harbour bridge.
And it doesn't have 4 train lines; there's only 2.
@Gnuthad It was made clear that two train line were converted to road in 1958.
@@jackchapo2011 I seem to have missed that. Can you provide the time code so I can go back and listen again?
Excellent video
Nicely modeled the Vande Bharat train on Chenab Bridge
The best supporting profile is the so-called "chain line" (based on ch(x) function). See textbooks for further learning .
Impressive engineering, I hope you make a video about the CCLEX or the Cebu-Cordova Link Expressway here in the Philippines. Want to watch it sooner ❤
You can also describe the arch as hyperbolic, sinusoidal, or cosinusoidal.
ok mihir chandran
and all of them will be wrong; the real shape is catenary en.wikipedia.org/wiki/Catenary
Wow so amazing ❤️
Beautiful Sir 🤗
What an explanation!
nice as always
Fascinating!! 👏🏻
Thank you 🙏
awesome explanation
This is amazing.