Houses Tested On Earthquake Simulation Tables From Around The World
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- This video contains a series of tests from many countries on shake tables showing what causes homes to collapse.
See why catastrophic damage occurs, what violent shaking looks like from inside a house, and discover the largest shake tables in the world.
These tests show both how vulnerable many houses are and how in many ways they are stronger than would be expected.
Worked for EQC (Earthquake Commission) in NZ after the Feb 2011 quake. I had a home owner comment after their double story house lost all the brick cladding off the exterior from the first quake and that once ply had been temporarily fixed to the house it didn't notably flex in the significant after shocks.
@Charles Richter nice handle tiger
I saw some videos of the 2011 NZ quake. It was pretty frightening. I'm glad I wasn't there in that highway tunnel through the mountain or near some of those buildings or near the big bluff with the houses below or . . . Just going to stay here in California . . . although we are going through some nearby flooding . . .
Yes, plywood is king and is amazing in what it can do to resist earthquakes.
Kia ora.... Thank you for your input... Nga mihi 💯
so they just clean up a whole house every time is shakes
That is right, just a broom and dust pan is all you need.
Or tip it back over upright.
Bay Area Seismic Retrofit oh yes most definitely why did i never think of that
@@ubme21 i was to
+Pug pro productions
becuase you replied them.
This very interesting to watch in the days after the 2023 earthquakes in Turkey and Syria.
Hi feeberizer have you become a flat earther yet? If not I suggest watch a 13 part series called _What on earth happened_ by Ewaranon to learn that the earth is not a globe. I got it in my about tab.
These look like massive earthquakes being simulated. You can make buildings stronger, but people can still get injured from falling/moving furniture. Truly terrifying. 😳
Atleast the building is not falling if it fell down, the people outside of the building may not survive
I think the point here is survivalibity rate. Better injured than be dead. We are talking about force of nature here be it earthquake, tsunami, tornado, volcanic eruption, human can only do so much against them.
Everyone dies. Chill.
Turkey has left the chat.
Even though some structures didn't fall they may still have to be torn down.
its not that house dont crumble or take a hard hit, but its not burrying you alive for once. even if the house is a write off after. the people insinde come out alive.❤
lesson i learned: when there's an earthquake, immediately climb to the 2nd floor of the house and hide under the table with covered blanket... skipped the 3rd floor because it like likely will fall in the ground and the 1st will be crashed by 2nd floor..
Good advice! You need to write a safety manual.
Don't even wanna imagine if for some reason earthquakes started happening in Brazil, our houses barely function as is, if a single shake happens the country would collapse in an instant.
It’s not the earthquake that kills and injures, it’s the buildings many of which are fairly new and ‘earthquake proof’. Corruption and greed make builders take short cuts but the designers are under unfair pressure to build higher bigger for less money
At first I thought "alright, miniature models, cool"
Then the building suddenly fell down slowly and it was actually a real-life model
Shame that no one uploaded the Soviet Earthquake test videos from the 60s and 70s, they designed cheap block buildings to withstand Earthquake at scales of 7 in case of nuclear explosion.
Note to self, do not be on the lower floors during a quake… run outside
Imagine someone is inside of the houses , that'll be scary
Or dead. Please make sure and support the channel by subscribing.
@@bayarearetrofit5814 okay
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@@bayarearetrofit5814 Okayy
What do you mean "From Around The World"? All of those are Japanese test sites except the last bit.
Car shock absorbers can be used to absorb earthquake energy (timber house).
Sorry I am so late in my reply. I did not know where to find the comments. Send me a photo
And I’m in bed, on a second story watching this video in Los Angeles. Sooooothing.
Wooden house is still the best you will just hear nails squeking
Nice compilation, except you didn't indicate the Intensity of the simulation.
..It would be nice if numbers were shown..
#1 lack of SWS in front
#2 weak connections
#4 weak foundation anchorage.
Poor connections, nailings, foundation anchorage, lack of SWS about covers it.
The X bracing portal frame did a pretty good job but the one brace only failed in compression.
Since we don't know how the models were built this is useless to all except an expert like myself.
Looks like they got a lot more work to do to make safe buildings.
Is this the Simpson Strong-Tie testing Lab?
It would be nice to know which countries each house type is from.
Mainly Japan.
On February 6, there were two major terrestrial earthquakes in Turkey. 7.6 and 7.8 magnitude. Most buildings were razed to the ground.🙏🙏🙏😔
Most of those buildings were not up to code, or very old historical buildings.
They go through all that work, and they don't put furniture and all the extra weight a house would normally have. Moral of the story, run for a vacant house and stay on the second floor.
Geeez, I never thought o that.
That would be a fun job. Even if your hpuse withstood a strong earthquake and didnt fall, that ride would still be scary as hell. I wonder if an earthquake proof hpuse can be tornadoe resistant.
And here I assumed GodZilla was their most feared event.. I stand corrected (while holding on to anything I can!) Amazing video.. Sad. But Amazing none the less. And I thought I was watching models until things got real big.. Full Scale baby!
Is that a life sized house or a scale model?? I am confused
Life. Sized
I was retrofitting an American house for a German guy. He said our construction was so cheap it reminded him of the houses built right after the war where they were built in a hurry with low-quality materials.
I guess 50%+ houses in USA are build cheap. In Europe we use steel and concrete in 90% of buildings.
I dont think Germans should talk about anything on the matter
@ the 3 minute mark.....do you know if those structures had hold downs in addition to the plywood bracing?
I think it was a before and after. No hold downs before so I doubt there were any after.
5:15 sorry, but this is really funny XD
what is the size of the shake table ?
Looks pretty big to me
6:18 xD
what about bouncy quakes?
Those are called thrust faults. The house goes up with the ground and down with the ground so long as they are secure to the foundation.
Which countries
Trying to figure out if its model houses or real size ones
Why Japan's skyscraper doesn't collar during earthquake???
Those are wonderful little houses btw..😁
Now that I see this I just realized im lucky to survive a 6.6 earthquake (which isn't even that big) in Albania. The quality of houses there is garbage (no offense just truth). I'm so lucky!
It seems all videos are from Japan.
Actually almost all of them are tests in Japan. Only last 2 tests are not Japan. 3:46 one could be not Japan.
To watch those tests more, copy and paste this word 耐震実験 or 耐震テスト The word means Earthquake resistance test.
I know the videos are Japanese one. Because I'm from Japan and was working as an carpenter before.
Thank you. I did not know that.
How is the urathane panel attached? Is it better than plywood for earthquakes?
Would it be the table at E-Defense? I understand it is the world's largest 3D shaker table with a surface area of 300 square meters.
Tanks❤
i must comment to say that there is 69 likes at this moment and it is nice
Would be nice to know: Simulated earthquake magnitude + type of house and where it is most commonly found
No shit.
Be nice if this had a source of magnitude used for each demonstration on the video
The seismic waveform of the 1923 Kanto earthquake is most commonly used in Japan's seismic experiments. 100,000 people died. Magnitude was 7.9-8.2. It is estimated that it would have been a seismic intensity of 7 on the Japanese seismic intensity scale in the 21st century. The 2011 Great East Japan Earthquake had a seismic intensity of 7. Japan's seismic intensity scale is up to seismic intensity 7 and there is no more than that. Because it is meaningless.This is Tokyo.
This really hammers home how scary earthquakes can get, geez 😟
Only scary if you live in a 3rd world country like Turkey.
It is a very interesting process. Would be very interested to see a compressed stabilised earth brick building tested for earthquake reisistance. It would also be interesting to see how having 2 1/2" and 3/4" gravel, bound together under a 15" thick raft foundation would stand up to an earthquake. A man used the gravel trick in the foothills of Adelaide, Australia, in the 1940's. His house was the only residence that did not crack in the 1950's earthquake, but, using fortecon plastic attracted white ants to his home. The idea is that the gravel takes the shock loading from the movement, and having a thick slab should allow the whole house to move as one.
From my observations, if you tie a house together, and make it fairly solid, there is a good chance that it will be standing at the end of the earthquake, protecting those inside the home.
Sounds like an interesting test but it will be hard to find someone willing to do it.
You need shear resisting elements like wood, or steel rebar.Once the shaking overcomes the dead load of the building it's gone.
@@designstudio8013: Yes, am working on a project that has half inch deformed / twisted reinforcing every two feet vertical and horizontal, all core filled with cement. Then, in the upper levels, 3/8 inch sheet with 1 inch deformed bar, run at 45 degrees to the sheet with the crossing lines at random intervals, refer Citi building and Surfside Towers for my thinking. This is supported with 6 inch square hollow section that is tied into inner and outer walls, in both directions. This supports the floor on each level.
It was JESUS who saved him
@@migs6674 you mean jesus the builder who showed up with his crew of hispanics? I think so too.
Do they put weighted stuff in the upper floors to simulate what it would be like?
One thing to be noted: the earthquakes shown here are extremely large
Yeah, idk what kind of level it has to be to throw couches like that
@@mrmr4622scarily, I live in California (The 2nd most prone place in the world to earthquakes) and it does not take a high magnitude to do that. Heck my tables topple over in my room at a magnitude 3.
Yeah, thinking 8.6 or higher.
from around the world？…
99.9% japans test video's🙄
Would love to see a plywood bracing test, but with added spray foam insulation plus plywood. They always use the 300% stronger walls as a sales pitch.
You're looking for SIPS to achieve an earthquake rating. Stick built for the mass market has never survived a shaker table test. It has become code as best practices, but not truly certifiable.
I don't think spray foam will stand in the way of an earthquake
@@lollipopyummy4924 whoooooosh
@@SourBogBubble oh.. it was a joke. Lol
@@lollipopyummy4924 no, spray foam can't be used without plywood. So your statement Clearly states this comment went 50 ft over your head. Considering plywood owned this test like a black belt va 5 year old.. yeah 50 ft might be too low.
The most earthquake-resistant house in Japan is a wall-type RC house.
What is RC?
@@bayarearetrofit5814 RC houses are concrete houses.
Reinforced concrete house.
It is a concrete house reinforced with reinforcing bars.
In Japan, it is called RC housing, but isn't it called RC housing in the world?
@@RC-RCdesignstudio
Are the wall-type RC hoses floating on the foundation?
It seems to be a good idea to have a sturdy footing that is not attached to the foundation.
@@RC-RCdesignstudio in taiwan, it is also called RC house.
In US, there are no such robust houses, so they probably have no idea
@@Drottninggatan2017 @bayarearetrofit5814
th-cam.com/video/es_a1DcBXqk/w-d-xo.html&ab_channel=%E9%99%B3%E6%B0%B8%E5%B4%A7
yeah they will have footing underground like this one.
I did a job for a guy from Germany where the houses are all made of concrete block and he told me the houses in the U.S. were like the housing that was built cheap and fast right after World War 2. It is true, the houses here are not built to last with or without an earthquake.
He's not entirely correct--concrete blocks and morter are one of the most susceptible materials in an earthquake because they don't have any flex (so they just break when force is applied). Wood may be cheap but it can bend without breaking far better than stone. You do still need to attach said wood to the foundation properly (and the US definitely has a problem not doing that properly), but wood itself isn't an enemy in earthquake zone, bricks are.
Unless that concrete block house has a LOT of steel in it, it would be a death trap. Far worst than wood. Germany however is not in an earthquake zone, so no real problem.
I used to think the US were a bunch of cheap-ass nutjobs, but I see the appeal on cheap buildings now: they're easy to replace when the owner doesn't claim it anymore.
of course you're not going to actively go about and put houses to the extreme test every single day... they're built cheap so they can be taken down after a number of years.
you build them "to last", but what happens if a number of years from now a technology comes up that's several orders of magnitude better than what you have? how do you take down that building that's built "to last"? you'll be phased out by several years and orders of magnitude with relation to the rest of buildings, by the time your building is truly "phased out" by it's own integrity.
I live in a brick house, and I had to improvise some sealing and weather proofing because the wind leaks through the smallest gap in the windows and doors..... nobody thought of that, at the time.
they lost the war.
no round houses?
What about a prefab home placed on shock absorbers, like the ones they have in a vehicle? Now I know why the Japanese didn't use much furniture, those wardrobes fall on you probably kill you.
2:34
Piece of wood: IM A BIRDY
haha so funny
When you suddenly feel like Simone Biles:
(First one) *House collapses*
_lights flicker_
Use the construction methods they used in the Forbidden City in China. The reconstructed buildings can withstand a 10.0 quake. It's fascinating how much the building will move with the ground but still remain sound
Have experienced 1000 of earthquakes and these shake table demo (both small and full scale). Proper design is key.
osb or plywood bracing will make your house much stronger. Most modern houses are required by code. Older homes only have cross bracing by 2x4, which is not enough
Older than…. What???
Plywood is much more resistant than OSB. OSB is brittle and breaks away from the nails or staples holding it.
It is enough. Wood houses are nailed. This makes the house flex in a quake. They are very safe in a quake. You are more likely to be injured by falling objects.
It isn’t so much the quake than kill you it’s the structure when it’s not properly engineered to protect you resulting with devastation and failure.
Took me 30 second to realize they were testing full sized houses lol
Was the last one at the PEER Lab? Years ago, I watched them do a test on a freeway column and before that sheer wall retrofit test.
Yes it was from the PEER lab.
We can solve this by living in pyramids.
What are your thoughts on older homes with 1x8 or 1x6 t&g used as the sheeting? If foundation is properly retrofitted do you think it will hold up ok vs plywood or usb sheeting?
You'll want to look into SIPS for that earthquake survivability at an affordable price. Just look at Turkey right now.
Yes. Plywood is best, but that wall will provide some rigidity.
no
very good simulation, I am totaly amazed by the look and quality of this test. It seriously simulated the danger of earthquakes. So I wonder one thing: how big is the chance for an old brick house, which is 50 years old, to collapse or taking harsh damage within a 5,9 earthquake?
I would not want to be living in it.
Here in Mediterranean Europe we call these cardboard houses
Yeah, also where I live! There are only concrete houses, execpt really old wooden houses. But they are too small to be threat
Concrete structures are prone to pancaking
@@myextrachannelireallydontn4155 no. All the skyscrapers and big buildings in earthquake zones are made from concrete.
Don't comment on things you know nothing about
Like the ones in Turkey....
@@stevenlang9849 question
Why skyscrapers are made of concrete in sensitive areas while we recommend wooden frame for homes?
I live in my Native timber built house which was constructed in 1914. Its seen some quakes in its time here in NZ.
Move to Christchurch.
And this, ladies and gentlemen, is why American homes only last about a decade.
Hello. I live in Adıyaman, Turkey. There was an earthquake here on February 6th. There is a lot of loss of life. I hope financial support will come.
Blame Erdogan and vote him out this May if you wan't any change
Okay so what I gathered from this is stay on the top floor in an earthquake
Was this video recorded using fridge? The resolution is so low.
Полезность видео НУЛЕВАЯ!!!! КАКАЯ МОЩНОСТЬ ЗЕМЛЯТРЯСЕНИЯ В КАЖДОМ ТЕСТЕ?? Или это просто развлекательное видео???
Be nice to have more info on quake rating and how they were built and why they failed
Show this to erdogan, hopefully he takes notes
The influx of Turkish comments in the comments section
Left is Japan, right is Turkey. hahaha 0:28 0:50.
So the house with walls is stronger that the one without
My house had a real earthquake shake table test during the 1989 Loma Prieta earthquake here in California. We are about 12 to 14 miles from the epicenter. We had some broken dishes and a small crack in the fireplace chimney(didn't need repair). Fortunate, to the max.
This 2037-2041
Smash Hit The Earthquake Sustainability
Houses Tested On Earthquake Simulation Tables From Around The World
Imagine chilling there thinking it was just a design
From around the world? Except for the final clip, they’re all in Japan!
I've always thought a caravan would be pretty safe because there's not much to fall on you, and they are designed to be moved about
You would be very safe. Live in your van down by the river.
👁💧👄💧👁 I live in California
Me too!
Ronald Idk wish i did
@@sheakrausz4033 why??? I live here in Hollywood and it feels really boring I would love to go to NYC
Same
I live in turkey malatya turkey
Just realised these are real houses 😂
since the 1960's we've been dealing with Very Large Quakes on Modern Structures, in those 60 years has anything been learned about building in EQ prone zones? Applying design to minimize movement, making it cost affordable and easy to retro fit? not really, just some show pieces of legislation and lots of un-reinforced masonry
IT looks like there's an easy solution for this; install 4 steel beams on each corner of the 3-story house running parallel to the walls and imbedded in a 10-ft deep concrete foundation.
They do that in commercial buildings.
In these examples it seems to be the ground floor that fails first. Putting triangles into the building frame makes it more resistant to the shaking (you can't distort a triangle).
Buttressing has been around for centuries. Too bad so many modern architects ignore the benfits.
Plywood by itself creates triangles.
Triangles? interesting. Karra indicates a slight downward tension.
so basically, contrary to initial belief, I probably have a higher chance of survival falling 15-20ft by staying on the second floor, rather than staying on the ground and getting crushed by said falling floor
angles are more difficult for the human brain.
I saw a test on a cob home (mud) it broke apart completely into big chunks. Would like to see tests on rammed earth, straw bale, hemp, aircrete, earthships and soil in bags homes. Sometimes saving money can be very expensive in the long run.
Hi mori have you become a flat earther yet? If not I suggest watch a 13 part series called _What on earth happened_ by Ewaranon to learn that the earth is not a globe. I got it in my about tab.
More power to you! Being able to actually determine HOW the ground moves to simulate an earthquake..? Amazing 👏!
Plywood is better than the typical chipboard garbage they sheet houses with.
Garage door opening sure makes a huge weak area in the corner.
Even if the house doesnt fall down it's greatly weakened and out of plumb and likely would have to be torn down anyway
You say from around the world but don’t mention the countries.
Earthquake motion is like a wave. Like that "th-cam.com/video/LZHXowmhKQE/w-d-xo.html"
It's like there's only movement left, right, back and forth.
Without giving context this video is completely useless. What materials are being used? How much are they being shaken and what real-life events do they correspond to? All this does is fear monger. I notice @Simpson Strong Tie said the same thing about contextualization and your response completely missed their point so I'm saying it again.
Homeless people watch this and are crying everywhere. Are those buildings REALLY built up to code...?
So basically you shouldn't have a floor under a house, because the top floor collapses on top of it?
Sorry I am so late in my reply. I do not know TH-cam did not notify me about your comment. That is right Northridge Meadows proved that.
Earth's gravitational acceleration g=9.8m/s2 (=980Gal)
The test showing the stick construction without plywood sheathing was a little biased. There was no lateral bracing on the building, which is what plywood sheathing provides, of course its gonna rock and move. And also, it didnt even look like that sheetrock was fastened to the wall.
I have to wonder about the magnitude of the earthquake being simulated starting around the 6 minute mark? This looks to be getting into even if the building is fine, you need to bolt down the furniture so you don't get hit and killed by it slamming into you. Maybe even sleep strapped to your bed so you don't get knocked off in the middle of the night.
Live in a cave.
Doesn't help.much when there's no reference to the magnitude or any other information. Also exterior walls add ALOT to the sheer strength of the walls
This has got to be every boy's dream job: getting paid to build full size homes and then destroy them in a simulated earthquake!
The plywood cladding is pretty amazing. Cheap comparatively.
Yes it is. Then cover it with siding to make it more attractive.