Golden Gate Bridge | The CRAZY Engineering behind it

The design and construction of the Golden gate bridge led to revolution in Civil engineering. Let's understand all the magical engineering behind the Golden gate bridge.
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[@Lesics]

Hello everyone, Lesics is in a brink of shutting down. Your help at Patreon is crucial for us - www.patreon.com/Lesics Hoping for your support, Cheers Sabin Mathew

[@ndd5619]

All your videos are really Great...and a Big hiiii to the girl in this video @Yogita🥳😘

[@johnstrawb3521]

Architect here, with an emphasis on structural engineering. Bravo!

[@MukeshKumar-bg8fe]

Amazing🔥🔥🔥

[@sharancr8]

Sir make a video about speedometer

[@vroomyomo8134]

Love your video! Thank you! 😍

[@pachitapuchicaca]

I appreciate that they went above and beyond to create a 3D version of the engineer, just so we can see him proudly cross his arms..

[@JaySmith91]

If you ask me, that's time well spent!

[@KarlenBell]

I crossed my arms with him @2:21 so that I could feel as proud as he did 😅

[@mistamal]

IT WAS FOR THE FIST BUMP

[@dgw6448]

Agreed. It was a high point

[@devanshgarg31]

🤣

[@moxxy3565]

Very realistic animation. Especially the part where one worker ran the cable while 2 others just stared at the water. 😂

[@vallunahkonen]

@@stuka1111 clearly missed the joke there...

[@moxxy3565]

@@stuka1111 the animation is Great. I was making a joke about how there is usually a bunch of construction workers standing around doing nothing. At least in the US.

[@praetorian3902]

@@moxxy3565 E.v.e.r.y.w.h.e.r.e!!!

[@crylune]

@@moxxy3565 I mean, if I was paid their wage and had literally no worker rights in comparison to Europe I would also stop giving a shit.

[@peterdu8536]

@@crylune then go to europe🤣

[@PROTOTYPE-ISH]

Anyone else here after Baltimore's Key Bridge accident and collapse?👀 Great video, by the way. Very insightful!

[@teaganallen9088]

I came looking for this comment

[@GolAcheron-fc4ug]

i bet that’s why this was in my feed yea

[@JohnSmith-nw2ls]

Designing and rendering a 15 minute animation like this is also quite a feat of engineering, especially one with as much detail as this one. Thank you so much for all the hard work and time putting this together

[@Getohracer33]

AI Puts all these types of infovideos together

[@lucasread1743]

@@Getohracer33umm are you sure???

[@samarthbarshi1916]

They made all this in a time when there was no CAD and other simulation softwares. It's truly remarkable.

[@Zuconja]

This was made in modern era, after industrial revolution, it's not that impressive, it's way more remarkable what Romans achieved.

[@eyeofthepyramid2596]

All you need is a pen and paper

[@FrankToasty]

Just do it the traditional way which is oh dear.

[@0xD1CE]

@@Zuconja Right, the Romans made poop sewers. Truly remarkable...

[@ripbob1780]

@@Zuconja both can be impressive

[@okdarius]

I'm not even that into civil engineering but this was REALLY fascinating to watch and learn about.

[@HungryTv13]

stop the cap, that was awful

[@okdarius]

@@HungryTv13 huh? if you're talking about the animations solely then maybe, but if the animations is all you got from this video then god help you.

[@NevrrPresntt]

Same here bro

[@jamesy_2680]

I am a Mechanical Engineering student myself, and this is fascinating tho

[@bellamarley9455]

Its structural engineering

[@WaveArsenal]

I appreciate how the sharks just calmly watch the divers working to place the bombs, like "Leave em alone, they're doing complicated work here.."

[@HimDead1228]

I'm here after the Bridge collapse in Baltimore. Very very tragic 😞

[@henryhenderson7051]

Big difference between the main pillars of the two bridges right?

[@HimDead1228]

@@henryhenderson7051 I'm not sure at this point. Looks like a similar structure. The B-more bridge had more pillars underneath

[@Claax4]

​@@HimDead1228that was the most random and unexpected thing that happened here in Baltimore like i wasn't expecting that but seems like they crashed the ship on purpose since you can watch as the cargo ship turns towards the pillar

[@cosled]

@@Claax4power turned off.

[@Claax4]

@@cosled no the currents were pushing the ship around since there were currents there and the power went off twice but the moon lit up the sky so they could see where they were going

[@gregparrott]

14:33 I attended the bridge's 50th anniversary in 1987. When the bridge operators approved the temporary closure to vehicles, they estimated 50,000 would attend. The actual number was estimated at peak, close to 800,000 had come, far more than could even fit on the bridge. You can find photos that show masses of people stretching back on to land, unable to reach the span. I attempted to cross the bridge - end to end. It was so crowded that after two hours, I only made it from the toll booths to mid span. The sag was visible. Could you imagine if the cables snapped, killing several hundred thousand? Even though the bridge held up fine, the bridge operators said they will NOT repeat such an event.

[@PaschanTOPs]

They will repeat it in 2037 for 100th anniversary of the bridge. You'll see.

[@gregparrott]

@@PaschanTOPs My bet is that they won't. On many levels, the '87 celebration was too great a safety hazard. While I am unaware of any deaths, I did see a paramedic team try to take someone out on a stretcher. People did their best to get out of the way, but it was dismally slow. Bridge operators and the city of S.F. can't risk another 'open house' on the span. Maybe they'd close it for a televised parade - like the Thanksgiving Macy's parade down Fifth avenue. The center would be cordoned off to pedestrians, but a long stretch of the roadway beyond either side of the bridge is also closed to traffic. This enable all attendees yo view the parade.

[@cosmosaviatoric]

Wow... Was there anybody frightened (if they realised) when the bridge was sagged?

[@bodybuilderslave7125]

I was stuck in mid span for over an hour. I was terrified because not mentioned was the center span was swaying side to side. I think mass intelligence sensed that it would unsafe to institute a Wave as fans at sporting events did in their seats. I think the induced additional forces of the wave would have brought down the bridge. I had claustrophia

[@bodybuilderslave7125]

Also not mentioned that about 6 months prior the concrete roadway was replace with steel plating to lighten the load and strain

[@hyliedoobius5114]

Joseph Strauss was officially the Chief Engineer, based primarily on his long history of building drawbridges throughout the country. But for the GGB, Strauss had absolutely no involvement with its design. The suspension design was proposed by Leon Moisseiff, a Latvian immigrant who had been involved on other large suspension bridges in New York, and it was he who had the idea of an elegant suspension bridge. The real brains behind turning the concept into a well-designed structure, however, belongs entirely to Charles Ellis, a meticulous structural engineer who personally made all the static and dynamic load calculations, including solving some equations with 37 variables…all done without the benefit of computers. Strauss became so irritated with the attention Mr. Ellis was getting from the press and other engineers that Strauss canned him. It wasn’t until the 75th anniversary of the bridge’s completion in 2013 that a plaque was installed on the bridge to honor Charles Ellis as the true designer.

[@InspektoraDeFrutas.]

Wow, what do you know. Thanks for sharing the truth about this!

[@goldwally1428]

care to share some links?

[@ninja.saywhat]

if this is true then this absolutely needs to be pinned. the uploader puts too much credit on the strauss guy throughout the video without mentioning the other chief minds behind this engineering marvel.

[@palalala5253]

Woah, i search it and its true, thanks for sharing it

[@SamMonkulas]

In the history I have learned, its always TWISTED stories that are given importance, and the REAL people behind the projects like this are always hidden under carpet. Joseph S must be a wealthy guy with lots of influence, so his name will live forever while the Real Designer & Engineers will die unhonoured. This is bullshit world that we live in everyday - Thanks Hylie Doobius for honouring the Real people.

[@billcook4768]

Always fun to see computer animation of the bridge construction. Reminding us that the actual design and work was done in the 30’s

[@hrithikgeorge4751]

Each procedure is so interesting that I'd love to watch entire videos explaining each step further. It's a marvellous structure!

[@nischalk1336]

Whoah, Lesics would make anyone fall in love with physics. Brilliant production, perfectly explained. Free content can't get better than this.

[@nerdy4172]

This is not physics. It’s engineering. You are in the wrong place.

[@nischalk1336]

@@nerdy4172 it's engineering with an emphasis of physics. The channel's name literally is LESICS(Learn Engineering through Physics). So don't try to act smart lmao, and understand the point.

[@navneetanand4503]

@@nerdy4172 it's Learn Engineering through phySICS (LESICS)

[@ArfatXeon]

@@nischalk1336 He is still right. This is engineering, not physics. Engineering merely uses physics, which is not the same as learning physics.

[@nischalk1336]

@@ArfatXeon Point that out to the creator of this channel, not me. I'm merely representing what LESICS actually stands for.

[@HotdogJuice]

I'm very interested in the work of those divers. I just can't wrap my mind around doing construction in those underwater conditions. Amazing!

[@dailyrevs1320]

Same here. I’m going to look for a video or picture of them now lol

[@1rage17]

Sounds absolutely insane. I wanna know how many people died creating this bridge. If none, that’s an amazing feat or an amazing lie

[@rahulkulk745]

@@1rage17 did people really died?

[@zarrex6808]

@@rahulkulk745 11 men died. Most old large scale construction jobs have fatal accidents.

[@millerdlv541]

Seven died building the MGM grand in Las Vegas.

[@Ronald-Butler]

Shout-out to the construction workers for risking their lives to make this project a reality

[@memememe8569]

Just started learning framework of bridges in my school, and i was very curious on how bridges are made ever since then. This really helped me understand alot.

[@patraic5241]

Fun fact. The Golden Gate Bridge undergoes constant maintenance. There is a crew that works from one end of the bridge to the other. They repair and replace rusted out pieces and repaint as they go. This is a never ending loop. When they reach the end the crew goes back to the other side and begins the process all over again.

[@pallin2198]

Pretty cool

[@floggyWM1]

you just explained pretty much every bridge in NYC

[@joashbergman5477]

Fun fact for you: Though the GGB has a longer span between main towers, the Mackinac Bridge sports a total length 3 times that of the GGB(5 miles long). I have crossed a few times. Every time there is a maintenance crew working on the bridge. What they do is they paint the bridge every year, starting on one side, ending the year on the other side.

[@davidperry1116]

Job security

[@axshman6914]

Sounds like a steady job

[@WachiravitSupasa]

8:46 Total Jump scare

[@asvj]

I'm having an anxiety and heart attack when he drop that thing

[@henrykaulroloz4557]

Lol

[@Trx500Fa]

Dang, my heart dropped

[@kindnessfirst9670]

They started painting it 86 years ago and have never finished because by the time the last part is painted the first part needs paint again. Imagine being a professional painter and spending your entire career painting only one structure.

[@michaeltodd2923]

Never cared about this kind of stuff but last year i rode my bicycle from Canada to Mexico and i remember crossing the GGB at around ten miles an hour and actually able to stop to admire it and not be moving with traffic, but it was one if the best parts of my trip. On the north side of the bridge is this cool little park where you can stand at the base of the supports and just really get to admire the whole thing. Super cool video thank you.

[@Matt33318]

This man with his engineer colleagues designed this bridge without advanced CAD and simulation programs and computers. Using just pencils, papers and editing tools like rulers and drawing compasses. Today it is still standing there and get the job done, between those harsh environments.

[@qbcd]

I think he was disabled while he designed it

[@harixav]

Even more amazing is humans reaching the moon using computers that were 100 times less powerful than your sixth gen iphone.

[@onlyplaysveigar7241]

@@harixav thousands of times less powerful

[@ArbiSyarifudin]

@@harixav moon landing the biggest hoax

[@Nallah108]

If he had used "advanced CAD and simulation programs and computers" the bridge would have collapsed already.

[@Vizal]

It's astonishing how everyday things that surround you and that you normally don't think much about have such ingenious stories behind them!

[@thirdeyesurvivor3886]

Exactly

[@vincalib1013]

Like burj khalifa

[@AlexMkd1984]

@@vincalib1013 made by samsung burj Khalifa

[@BlueeEyesWhiteDragon]

I quote you

[@BlueeEyesWhiteDragon]

Infact the ♾️ atoms all around us have a story as well. Everything.

[@GP-MeTube]

Great video presentation. They forgot to include the bridge road to be slightly arched, like an old arch bridge design. It may lessen the tension of the cables and reduce damage when the road deck steel expands. When the finger expansion has no more room for expansion, the steel road deck will push horizontally and may damage the two towers. When the road deck is slightly arched, it will just push up to lessen compression. The designers are very smart. It's a combination of an arch bridge and a suspension bridge.

[@lawrence5039]

It's mainly to avoid 'slump' when the load is very heavy. It becomes level when maximum load is on it.......except when 300K people were on in. Slump of 6 meters is huge, but it didn't apparently crack! (I would LOVE to know the concrete mix and steel usage that held w/o cracks). Along with this bridge, the Empire State Building is on the list of top 7 (ASCE) civil engineering wonders of the world. The ESP was built, and open for business in just 14-1/2 months, during the depression, followed by W2....leaving the owners with no profit until early 1950's. (Retired, structural: bridges/dams/high rise bldgs) Slide Rules ROCK!!

[@jeremysmith9694]

Also I wondered about wind. How did they factor that into the design?

[@GP-MeTube]

@@jeremysmith9694 The designer is smart. I know there's no wind tunnel that time to simulate the wind effect. Maybe I am wrong. The steel truss structure below the road prevents swaying when there’s a high wind. The wind easily passes through and less drag. Remember the Tacoma Narrow Bridge collapse due to high winds? When they rebuilt the bridge, it was almost the same as the Golden Gate Bridge truss (under the road) and less swaying during high wind. Sometime in 2021 when I was in San Francisco VA Hospital, I could hear a high pitch sound coming from the Golden Gate Bridge area. There was a high wind that day. When I passed the Golden Gate that same day, I could hear the bridge was screaming. I am positive the neighborhood is not happy. I heard when they fixed the railing sometime in 2020, they can hear the high pitch sound during high winds. I am not sure if they already fixed it.

[@jacobLan]

I'm so honored to see this engineering introduce in this video. Thank you.

[@DanO530.8]

He was a genius he didn’t have todays technology much respect to the designer and his family the Golden Gate Bridge is a wonder of our world

[@fullbring1926]

Thinking of his imagination is on other level. 💪

[@VesperTV_]

Was he ? We know from experience that such monumental project would have required teams of engineers. Not just one random smart dude...

[@DanO530.8]

@@VesperTV_ you do have a point there but theirs always the main person ….like president ….like coach…..like superintendent….like mob boss….so on so on

[@kassandraofodyssey6475]

@@DanO530.8To put it simply, there’s always someone with a vision and a plan. The teams of workers are just the people constructing it. Not to undermine their efforts though they played a very big role in the Golden Gate’s construction.

[@criticalthinker1123]

@@VesperTV_ *Team are like a herd of sheep, they need guidance*

[@Xavierpng]

Amazing! The wisdom knowledge and skill to get this done at that time (1930s) is beyond me! Thank you Lesics for always making these well animated and explained videos!

[@Nietabs]

Ok

[@aryadebchatterjee5028]

what are you doing here?

[@rooron3152]

OMG Xavier i'm your fan

[@douevenliftbrobro]

Wtf you doin here blud?

[@jayshrikrisna108]

@@aryadebchatterjee5028 he is also an engineer 🙂

[@Martin-qm2lg]

A very enlightening education! Just incredible how brilliant these engineers are. They are the heroes that make our lives better, not pop stars or movie stars!

[@DrawingTechnical]

So many engineering challenges solved with master level solutions, and on top of that a great animation to explain it all. Excellence!

[@42meep13]

Additional facts: At the time of the Golden Gate Bridge's construction, no steelworks on the West Coast could produce components large enough to construct the towers, so they were shipped via the recently finished Panama Canal from the East Coast (New York specifically I belive) The Red color originally was to be a temporary coat to protect the bridge while a final color could be chosen (the navy suggested yellow/black stripes for visibility reasons) but it was stuck with as the locals were fond of it The Bridge was constructed with an unprecedented (for the time) emphasis on worker safety, to the point as far as I'm aware there was only one fatal accident during construction.

[@officialnickname]

Says on Wikipedia that apart from this one fatal accident, there was also a constructive part with 10 people on in, that fell into the net. The net didn't hold up, so all of them fell to their death. Still those 11 deaths were far below the 36 fatalities they estimated before construction.

[@PHLEX_10]

@@officialnickname Thank you for this info. I was wondering when the video would say how many people died in the process of construction. Idk, I think it's important to remember the fallen and their sacrifice to appreciate their success. 🙏

[@Mcgovern124]

Steel came from Bethlehem and transported to Philli where it was shipped to SF.

[@neutonduarte3266]

😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😅😅😅😅😊😊😊😊😊😊😊😊😊😊😊😊😊

[@arizonacolour8793]

11 of the 36 estimated is good, but I'm sure it wasn't any less significant to their families​@@officialnickname

[@cpcattin]

My Grandfather (1890 - 1964) wrote a book on the engineering of the bridge contemporarily with its costruction. (1935). He was an engineer for the City of San Francisco. BTW. I don’t think they used roller compacted concrete. I inherited a small piece of one strand of the cable and splice from my mother. The Golden Gate Bridge will always be the standard for beautiful infrastructure. His book is still for sale at the gift shop.

[@TheAlonso1813]

Roller compacted concrete?when it is wet We use big long vibrator (nothing sexual )thing say my boss that it is use to help the concrete compact it self and get rid of air boobles or something like that .

[@TheAlonso1813]

BTW I like your comment, you’re lucky and sure to feel great to know that your family was part on that amazing bridge

[@QueenCityHornets]

@@TheAlonso1813 air boobles? Boobies?

[@cadethenderson1]

My research showed that RCC was not used on the deck. RCC is usually for unreinforced concrete. Good documentary video and narration. However, I think it should have mentioned the use of the catenary formula that was used and the involvements for Eng. Charles Ellis and that Strauss died the following year.

[@bikeny]

What's the title? I'd like to see if it's in my local library here in New York City.

[@Kittysniffles888]

I grew up in SF and loved seeing the bridge! I have crossed it many times but I never knew how it was built. So cool!

[@lamborghinijasiek]

It is so incredible that they were able to build this bridge with no modern technology. Huge respect for those people

[@6z0]

Oh they had technology lol. The Romans are the ones who built great structures without modern technology.

[@jameshoffman552]

13:40 The support wire runner-layer is amazing. You can't find people today to do that kind of work.

[@ocamlmail]

Why he should run?

[@arinroday9087]

why can't I find people today ?

[@fahad_hassan_92]

lol

[@luisgandster420]

Lol 😂 ikr !! Ppl it’s just a joke

[@DeepKumar.]

@@ocamlmail coz of the slope, U can't really walk in those slopes if U have ever walked in these kinda slopes...

[@jayvision7490]

I always wondered what was so special about a simple bridge, now I know. Thank you. I love learning random information.

[@manueldonohue3487]

Thank you so much for this animation I was a union ironworker local 86 Seattle Washington I'm 67 Now so seeing all of this just brings back memories I even got to work on the Golden Gate a small retrofit job froze my ass off on on the south end thanks for presentation

[@youboy9586]

That is why i as civil engineer really fall in love with these kind of mega structures. Only those who worked on structures know how they built it. For normal people it is just bridge to connect with each other but for us it is more than that it is our emotions, our commitment and love to our country.

[@harisali2229]

indeed!!!

[@wooshbait36]

I'm construction worker, much better and easier work than engineer

[@mastermind5421]

@@wooshbait36 your not getting paid as much

[@wooshbait36]

@@mastermind5421 False, depends at what exactly you do and in wich country. I get paid about equal with most engineers, I work more hours officially to be honest, but my friends that are engineers work a lot off the clock, even when they are home. Only disadvantage in my book is that my work is almost always in dusty environment and more physical

[@islamicwhatsappstatusworld5736]

The way he appreciates, credits and mentions the chief engineer, divers and even the cable workers proved the knowledge is nothing without discipline, execution, teaching and spreading them. He deserves an Oscar for such a animation film

[@dreadfulbodyguard7288]

Bhai itna bhi nhi lol oscar.

[@islamicwhatsappstatusworld5736]

@@dreadfulbodyguard7288 English please

[@aviiii_xo]

@@islamicwhatsappstatusworld5736 he is saying that the KZbinr hadn't done anything more great to be awarded.

[@xReisk]

Subscribed. Im so happy that something inside of me snapped and decided to learn about stuff about the world, from ancient times to modern times, from old civilizations to modern structures also. You go to the points, good animation and visualizations! Thanks a lot for sharing!

[@fusical5577]

It's incredible what human beings are capable of. We must appreciate all the magnificent work people in the past have made for our pleasure

[@Life_42]

9:08 the first bump was awesome!!!

[@carlwilliams6977]

They give Strauss far too much credit here (a common mistake)! Strauss did come up with the concept of bridging the golden gate, and was its chief promoter, a herculean task in itself! However, he primarily designed cantilever bridges and did not have the engineering experience to create the suspension bridge that was built. Charles A. Ellis was the primary engineer. Also, they show the traffic flowing in the wrong direction on the bridge. Our steering wheels are on the left in San Francisco!😂 Other than that, a very interesting video!

[@geothermal]

Yes, when I reached the 6:17 mark, I thought, "The cars are driving the wrong way!" (^: Digital effects might have been created in the UK or some other country where they drive on the left. If built today with polymers, it could be a cable-stayed bridge. But the people might revolt about that. Or they could make it with lighter materials and have the same design, but towers closer to the shore to save money. It costs a lot to maintain this bridge so they might replace it some day.

[@ggtt2547]

Can't even fathom how you design and compute all of this by hand. On paper. Amazing

[@Super_Pax]

Really gives you a better appreciation for the massive amount of thought that goes into our infrastructure.

[@SoumilSahu]

Maybe I'm biased, but I don't understand how people complain about the fact that we don't make beautiful monuments anymore. Building something like this bridge is a far more impressive and inspiring feat of the human species.

[@paradoxica424]

infrastructure is a massive upfront investment with no immediate return. now consider neoliberal capitalism. the conclusion is left as an exercise for the reader.

[@paradoxica424]

for example, the stuff of space sci-fi presented in kurzgesagt’s videos are possible. but who would pay for it?

[@taylorjeffords1719]

Square disposable structure is less math.

[@dirkbecker2961]

@@paradoxica424 So it means when the Golden Gate bridge was built there was no capitalism in America? What then, socialism? Modern America can't build such structures because it had to admit that it needs white men to build. BLM and feminists won't do the work.

[@paradoxica424]

lol intentionally conflating capitalism of a century ago with neoliberal capitalism. get fucked.

[@jcbrena]

The production of this video is awesome. Thank you for such a great explanation. This video should be on display for visitors of the bridge. I would have definitely appreciated the bridge even more if I’d seen this video.

[@onebicycle3772]

Crazy engineering to give way for automobiles. Great👏🏻

[@EleyReiHer]

Not only that it is tough, the design is really elegant & looking contemporary up to this modern day. Iconic, forsure! Those are true masterbuilder 🎉

[@melinoess]

my grandfather was an engineer for the port authority in New York City, and worked on many famous bridges here(the gw, throggs neck, Verrazano). videos like these make me appreciate the work he did here even more.

[@J.C...]

Mine was a steel worker, who built those sorts of things. He helped build most of the main buildings in his town, in central Louisiana. I miss him dearly 😞

[@BillClay88]

Have you seen the new addition to the Guggenheim? I did that. Yep, and it didn't take very long either.

[@melinoess]

@@J.C... ​ my grandfather also worked on the twin towers. he worked for the engineering firm that built the first 3 or 4 floors. he was a jewish immigrant from cuba whos dream it was to come here and build the bridges and skyscrapers he so greatly admired. he died last year, and i miss him dearly too.

[@devinmoran59]

My grandfather built the pyramids

[@silversurfer8208]

@@J.C... liar

[@Thecardoctor365]

I really am appreciative of the work and effort of everyone who made that bridge. Also I appreciate the hard work it took to make this video as well. It was super informative and showcased everything perfectly.

[@vanderlinde4you]

I live in lisbon, and i am always stunned by the proces of building a simular bridge and what comes with it. It's amazing.

[@Baneslayer]

Absolutely incredible and an underappreciated engineering marvel. I am impressed.

[@xOpTii]

Okay okay, so now I fully understand why cisco went with that logo. What a phenomenal engineering!! Hands down the best looking and stunning bridge out there imo. 👏❤💯

[@leyahsdad]

I thought it was your mom's opinion

[@princesspumpkinpanty]

that thong tha thong thong thong

[@criticalthinker1123]

@@leyahsdad *his mum brought him to this life, so the opinion cascaded to him*

[@leyahsdad]

@@criticalthinker1123 so he is lying than?

[@criticalthinker1123]

@@leyahsdad what are you talking about?

[@lharris9924]

Ahhh.... always wanted to know HOW this bridge was built. I read some descriptions but as a non-engineer, need to see a visual representation. Especially the portion about laying the foundations and building the tower. Thank you!

[@whooaaapppp]

This will be the replacement for the Baltimore bridge

[@jitadhikary1619]

Being a civil engineer I really aspire to do such types of projects.

[@allroundergaminga2z]

Bhai matt bana yaar plz hume hamre zindgi bhaut pyare hai 🤣

[@maalikserebryakov]

@@allroundergaminga2z bro, don’t build (it). Plz, my life is very precious to me I do not know what “hamre” means.

[@akshalgondalia5489]

which college bro ?

[@drfate9110]

@@maalikserebryakov "hamare" means "our" not "my"

[@jayzayproductions5454]

Stop being delusional you never will come close, go back to your legos bro

[@Absol27]

2:16 I love how Joseph is just like a good 300 feet tall. makes sense.

[@georgenjuguna799]

For the longest period I have been watching different KZbin videos in regards to the construction and this is best I have come across! I now understand

[@MySpace662]

A well engineered vlog that I have seen on civil engineering. Thank You for sharing it.

[@drmacsika]

This might seem crazy but I actually cried appreciating the genius of human engineering. A lot really do go underappreciated! Your videos make me appreciate life a lot more.

[@just10kills92]

what else made you cry?

[@clementbowen4425]

Got the opportunity to see and cross the Golden Gate Bridge when I was in San Francisco some years back. It's was truly a sight to behold

[@alexanderv.k1696]

Wonderful, well calculated basics on this Golden gate bridge. Great info for civil engineers and a great experience for the passengers on this bridge. Alexander, lndia.

[@frankbiz]

What an amazing video describing this engineering marvel. Thanks for the incredible 3D work you did, it brought it to life.

[@navneetanand4503]

Golden Gate was interesting but what about The Howrah Bridge of Kolkata? It was also a really incredible project.

[@Astrophile06]

Chenab bridge too looks fascinating.

[@NelaKarismaa-nz4og]

Thank you for the animation, it helped visualize things rather than just saying words and plain picture

[@praveenkrsahu6355]

This is the amazing video i have seen in a long time. And also hats off to the engineer behind the golden gate bridge "The Joseph Strauss"

[@hammad6852]

No doubt it is an engineering marvel. This makes me proud to be a Civil engineer student. This motivates me to study harder. While studying I just imagine that this 5 page numerical defines the lives of thousands of people who are going to use it.

[@maynethatismad]

@Levi Jesus christ man

[@frankbauerful]

Wow. I didn't know the bridge was such an impressive engineering feat. It deserves its place among the Wonders of the (modern) World. And they did all of this without computers.

[@EdrickMasangkay]

Another interesting engineering tidbit involves the bridge's south anchorage. Upon site inspection, Strauss realized that the Civil War-era Fort Point stood on where he had planned to build the south anchorage for the suspension cables. Wanting to preserve the fort's architecture, he redesigned the south anchorage, incorporating an arch structure so that the bridge could pass over the fort, thereby preserving it. The redesign also moved the suspension anchorages further to the south. (Note: it's also been hinted that preserving the fort saved the Golden Gate Bridge district a ton of money. The bridge was being built on US Army property -- the Presidio to the south and Fort Baker to the north. As part of the agreement with the Army to build the bridge, the bridge district was required to compensate the Army for any property they had to demolish during construction. Needless to say, demolishing old Fort Point would have been quite costly for the project.)

[@NoosaHeads]

Absolutely superb.

[@Meghnaaad]

The foundation part is really intriguing. Its unbelievable what humans can achieve.

[@syedadil6359]

Watching this video and gaining such information makes me even more happier being a civil engineer.😊

[@jays2551]

this is becoming my favorite channel on yt. thank you guys so much for the work that you do! these videos are incredible and honestly so well-made that it's kinda shocking. please keep making these!

[@Alex-ed8vj]

Man, you are brilliant. One of the best KZbin channels. Not just my grandson (who loves everything engineering) enjoyed the video, but I also learned a LOT of interesting things.

[@subhampradhan10112]

I was always waiting for a civil Engineering video since I am a Civil Engineering student. Thankyou lesics for this. Joseph Baermann Strauss was a great Engineer. Respect to him 🙏.

[@sayyamzahid7312]

I live in Karachi Pakistan and I like your comment

[@fearzstealth]

@@sayyamzahid7312 i live in india and i like your comment

[@contrawise]

No - Strauss was not the actual engineer of this bridge. He has credit bestowed upon him that he does not deserve. Had it not been for the work of Charles Ellis, the bridge would have been nothing but a twinkle in Strauss's eye. Ellis did all the stress calculations, and made many engineering decisions that Strauss got credit for. Ellis was a distinguished mathematician and structural engineer; Professor of Engineering at the University of Illinois. Ellis Hall, on the Engineering campus, was named for him. There would be no bridge without his work.

[@markmejia3840]

It was Charles Ellis who did this. Strauss is a glory hogger.

[@ukrainium_92]

Man, this is really impressive how they thought of all these problems to fix to build such a bridge

[@LimeArt09]

I've seen a short clip on Facebook, and now I'm here. Very interesting, hits the dopamine spot

[@protectyourcar5889]

This bridge is incredible 😮… thx for the video.

[@JerseyAccent653]

I love this animation! Why better than B-roll of stock photos of the same thing over and over

[@jake9854]

but girls think this is borin n nerdy tho

[@JerseyAccent653]

@@jake9854 eff em

[@jayzswayz4897]

it wasn't just Joseph Strauss, there was a talented team of engineers and architects involved in this, give credit where it's due.

[@ImStuckInStockton]

no

[@herobrine1847]

@@ImStuckInStockton edgy today aren’t we?

[@krell2130]

Another great childrens education vid from Lesics! My 4 yr old loves these!

[@samessa3155]

Amazing engineering. Thank you for your clever & clear video 🎉

[@Mandy-cn8sq]

A master piece of engineering and architectural design

[@mileswhite5515]

How brave the people are when building the concrete base is crazy. When sailing small boats around the base, swells can get to where it’s like sailing up a hill.

[@Teddokrato]

Not a task for sensitive men True grit .

[@gemini-mg6sc]

Those men certainly had balls of steel.

[@Kiceburg]

The planning , preparation on this construction contract is impressive 👏 👌 👍...

[@francescos7361]

Thanks for this contribution

[@PhantomWorksStudios]

You also forgot to mention that the bridge deck isn't just straight horizontal as many think. The deck actually arches upward some to the middle of the bridge. One is because the Earth's not flat. So over long distances especially with water that to has an arch to it so if the bridge was built straight across the middle part would actually hang lower to the water. Also alot of times when you see bridges even short ones you will notice it has a slight arch to it. This is bc a bridge with an arch it much stronger then one that's just straight across bc it's arched it presses it self together due to gravity which causes a downward pressure that keeps it in place. Straight bridges doesn't have that and that downward force is still there and without the curve to help balance the downward force it can continue to keep pressuring downward (sagging)until the other supports fail.

[@AftabAlam-yw4eq]

Your first reason is just rubbish. The length of the bridge isnt long enough to consider the earth curvature in the design. The second reason is solid from engineering point of view.

[@PhantomWorksStudios]

@@AftabAlam-yw4eq I'm just relying what my teacher told us at school

[@tubester4567]

I believe the paint is Red Oxide. A special rust resistant paint. The paint is very effective normally but in a harsh sea-air environment, it needs to be re-applied regularly. I believe the bridge has full time painters, the painting never ends.

[@leopardtiger1022]

Arch upwards transfers load to compressive force which concrete can bear. Not tensile force. That is why bridge fesvk is arched upward.

[@GMoney-B]

@@tubester4567 you are right. I saw on a documentary once that the painters(I think like four guys) take a whole year to paint, then at the end of the year, they start all over again. Haha

[@Ban00]

Thanks to Mr Strauss' ingenuity and you as well for illustrating this so well

[@Gizzy9987]

Man this video is kinda sparking the engineering/math loving side of my brain that I let kinda die over recent years. Super super cool stuff. And it’s absolutely incredible that this even happened. Like imagine the SIZE of the team that there needs to be working on this. All with the same goal in mind, all working in tandem to create something bigger than themselves. Absolutely incredible

[@Skateboardfreakist]

I wish there were videos like this when i studied engineering 5 years ago

[@hmmm....1910]

@pyropulse Everyone who watches these videos are not engineers. So it has to be simplified, right?

[@phs125]

Man the animation keeps getting better and better. Feels like I time travelled to the construction of the bridge...

[@shaunl446]

Great video and amazing they pulled this off given the technology available

[@davisantos5672]

He's a genius and also protected the workers so well

[@T1Earn]

i want an explanation like this FOR EVERY SINGLE THING

[@nolesy34]

How stuff works

[@davidroofier8675]

this is very technical and coming from a bridge engineer myself, this information is superb.

[@HUEYYRILEYY]

this thing is so fascinating

[@BL3446]

9:20 You can learn this section at home by hanging heavy pictures or mirrors with picture wire. The weight of the load is always the same but the tension in the cable depends on how it is oriented. Vertical would be supporting the weight fully. But with added angle, only a portion of the tension is holding the vertical load weight.

[@83jbbentley]

It’s crazy to think about every movie it’s been destroyed in. The Golden Gate Bridge has been destroyed in the following films. It Came from Beneath the Sea (1955): Destroyed by a giant octopus. Battle in Outer Space (1959): Destroyed by a meteor from space. Superman (1978): Partially destroyed by an earthquake. The Core (2003): Destroyed by unfiltered solar radiation from the Sun. 10.5 (2004): Destroyed by a major earthquake. X-Men: The Last Stand (2006): Destroyed and moved to Alcatraz by Magneto, one of X-Men's villains. Shown to be rebuilt at the end. Mega Shark Versus Giant Octopus (2009): Destroyed by a giant monster attack. Monsters vs. Aliens (2009): During a battle with the probe, it topples over onto the span, resulting in the south tower's collapse. Meteor Storm (2010): Destroyed by a meteor shower. Pacific Rim (2013): Destroyed by a giant kaiju. Godzilla (2014): Destroyed by Godzilla after it cuts through the span. San Andreas (2015): A mega-tsunami carrying a cargo ship hits the bridge, causing it to collapse. Terminator Genisys (2015): Destroyed by a nuclear missile. Sharknado 5: Global Swarming (2017): Destroyed by a Sharknado worldwide.

[@DoodieSmoothie]

Did you watch all these movies and took notes or did you remember it all?

[@jayzayproductions5454]

I know right, it’s insane that they were able to rebuild it so many times without error after all the movies they destroyed it for! Truly amazing

[@wooshbait36]

@@jayzayproductions5454 Omg clown, it's just fake movies, they didn't actually destroy it so many times, I swear some people on here have the lowest IQ ever

[@wooshbait36]

Most movies you mentioned are American, and Golden bridge is in China so how they destroy it?

[@DoodieSmoothie]

@@wooshbait36 are you high?

[@nerad1994]

Would this bridge survive a cargo ship bumping into it?

[@Claax4]

It's built on bedrock which could probably survive but with probably major damage or idk but I find it hard to believe how Dali crashed into the bridge here in Baltimore like it was so random

[@BaoNguyen-ft3qj]

bro i wasnt expecting a 15 minute video of physics and the engineering of a bridge