Top 5 Ways Engineers “Earthquake Proof” Buildings - Explained by a Structural Engineer
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- Опубліковано 29 тра 2024
- Top 5 ways civil engineers "earthquake proof" buildings, SIMPLY explained by a civil structural engineer, Mat Picardal.
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📗 Chapters 📗
0:00 Intro
0:08 Buildings are not earthquake proof
0:32 Why do we need structural engineers?
0:44 No. 5 - Moment Frame Connections
1:35 No. 4 - Braces
2:40 No. 3 - Shear Walls
3:16 No. 2 - Dampers
4:11 No. 1 - Seismic Base Isolation
5:19 Mola Model discount offer
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Mat Picardal is a structural project manager at DCI Engineers. This video and this channel does not necessarily reflect the opinion nor beliefs of DCI Engineers. All thoughts expressed are purely his own observations and experiences.
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I'm a structural engineer based in the philippines. Hoping to be an architect someday so that i can design the structure without architectural limitations and vice versa. Satisfying both beauty & strength.
Excellent and simply explained.
An earthquake consists of more than just lateral dynamics, which are the "P-waves", which travel the fastest and arrive at the surface first. The "S-waves" are also extremely devastating, which manifest more or less vertically at the surface, travelling more slowly and arriving after the lateral waves. Designing buildings to survive both of these is extremely difficult.
It would be great to see how structural engineers have learned to strengthen buildings for both of these wave types.
Would be be awesome if you could illustrate this so vividly.
Wow, I'm from Brazil and I can't believe I've never heard of this product before! I'm starting my studies on structures at the university and I believe this is the path I want to follow. Your videos are very inspiring, keep up the great work!
Thanks for the kind words Vinicius, I’ll make more videos like this!
Q
Viva a ciência, viva o sus
Buildings following building code makes all the difference. 30 years ago, 2000 people were killed by an earthquake in my area and other neighboring cities here in the Philippines. But a recent earthquake similar in strength only killed 5 people. A lesson learned the hard way.
Mat, this is so beautiful, your teaching approach is mind blowing. GREAT WORK
Thanks Duncan! Glad to know it’s effective.
Nice! The quickest and efficient way to explain the basic principle of structural analysis I’ve ever watched.
Indeed! Most UA-cam videos will need at least 30 minutes to explain the same stuff. I like the information density in this one
I'm a builder in New Zealand and I love how simply you explained all that. Well done. Just subscribed.
I love it when they explain it in ways everybody can understand WITHPUT " DUMBING" it down .
Turkish administration should take notes from this video
My thoughts exactly as a Turkish. There are more problems than that, if you know you know.
@@riflesightsonme2120 I know one, construction amnesty. Ozal legacy.
Turkish engineers are probably well aware of earthquake engineering precautions. The problem is Pricing and a market driving quantity over quality combined with poor building regulation to enable said quantity.
If only money will be properly invested, for once, over there
Spoiler: it won't
It is not about engineering or building technology it is about MORALITY. They have used sand , thin and straight steel , low quality concrete. The samples show the reason why those buildings have collapsed. It is not just sand but newspaper parts , protective foams , evil eye bead .. everything but not conctrete in any of the columns! Yet , people call themselves we are Muslim, elhamdülillah!!
In Mexico we used those techniques long time ago. We just started building high because the law change , Mexico city laydown in a lake and is very difficult
The details of infrastructure and model types were clearly explained. Very good.
Simple but perfect explanation. Great job Mat .
Very educational ,the demo is awesome!
😉I really want to rebuild redesign my house in an open design but try to figure out the best earthquake proofing that works.
Anyway, the 6 floor but wide medical building I worked in was build in the late 80’s and it’s built on the roller technology. I always tell our patients that the building has rollers. We feel we are just swaying as if you are on a boat every time an earthquake happens. Also I notice the building has a small degree of lean since I observed that water on the floor changes directions from time to time since we are on the top floor ,which I tell my new staff getting trained in Sports orthopedics 😉we use a lot of saline irrigation that falls on the floor😉
Love your work! Congrats on the SE!
Thank you so much for your videos! Please never stop posting 🙏🏻🙏🏻 I learnt so much watching your videos
More to come, thanks for your comments!
Thanks a lot for this! I'm an architecture student working on a high-rise earthquake prone structure, and I learned a lot from this video!
Mat, best use of Mola models for education I’ve seen! Beautiful. I particularly liked the tuned mass damper!
Good work man!
Thanks for the feedback Daniel! Helps to know that it’s effective.
Good Job, I am good in structural steel connections, cross braces etc. I totally understand you. Thanks
Good job Buddy, thank you for sharing this video absolutely this is very interesting and informative
3:13 “also the architects worst nightmare” - oh… good!
Thanks for sharing this very informative video. So interesting .
Great educational video, thank you so much!
There are even more methods and some have been used for centuries!
The best example I can think of are Japanese castles with their drywall foundations and unusual wooden joints. Another example were some images of the Aartal where a flood erased brick and stone buildings, but left timber frame buildings standing (ground floor walls gone, but the frame kept supporting the upper floors). This type of construction also withstands earthquakes relatively well. I just wonder how it compares to very similar Japanese wood structures, which seem to put more of an emphasis on sliding.
This was very interesting to watch 💜
Thanks for commenting, good to know you enjoyed it!
Excellent presentation.....it was interesting how you started the presentation by saying buildings are not earthquake proof .... I remember that exact statement in my structures course on earthquake design..... I am a retired architect....
Thank you Engr.for your very interesting vedio,God bless you 🙏
Thanks im subbed....great video.
Thanks for sharing the information. It is very important topic, which is unfortunaltely not popular enough. Hope my country will take notes of those ideas.
kit Mola from Brazil!! Very cool 😁
Thanks for constrution structure knowledge .❤
Thank you for this enlightening video .
very useful info, thanks!
Nice job yt algorithm, recomending this to me. Nice video about building solutions for earthquakes. Will sub for more.
Thank you for this educational video sir
coolest video I've seen in a while.
Will you also a make a video on alternative building techniques that are more environmental friendly.
great video, have you ever thought about making a series of videos addressing spreadsheet or frame sizing of some structural elements and their due detailing, without using software, just manual calculation considering local standards, I'm from Brazil and I really wanted to know the working model of you in the united states by a professional!
One extra for building that already exist without any earthquake resistant technology. They can add capsule pod on each floors, like a 3m² metal box, with emergency supplies. So when an earthquake occurs, instead of running down, they can go inside until it's safe
nice share... can you create model using combination of lateral and vertical pulse? thanks
Wow the spring design is like an tensegrity structure.
Great information 😊.
Who else is watching this after Turkey-Syria earthquakes?
The recent carnage is reflective of not incorporating FIS.
With exception of Japan, many countries have not embraced this new technology hence resulting in catastrophic human life loss and decimated buildings.
thanks for the knowledge
great video. what do you think about carbon fibre clothing? how would it compare to these 5?
Is there any earthquake protection system for which building structures have already been built but don't have enough earthquake resistance capacity?
I've seen many buildings that have bracing as well as external columns and beams added after construction.
Those are super common especially in japan.
In fact most buildings like school, built before 1995 there have them I think.
Interesting. Thanks.
you're very smart. very informative
can you make a video about the model that can withstand both earthquake and storm?
Amazing video and amazing device!!! One thing…..earthquake are not only orizontal but also vertical so…how do they manage with that??
Thanks a lot
hi, want to ask about light gauge steel framing for 6 story withuot column and beam. it can be done??
Thanks 4 the vid brudda
Thanks for sharing informative as well as intriguing content
Good information
A real architect should embrace anti-quake techniques and find challenge and enjoyment in harmoniously integrating them into an aestethically pleasing structure.
I am civil engineer in kenya, can you make a video on flat slab suitability for seismic design? Buildings need a frame arrangement between columns via beams, slab diaphragms and beams form a closed tied up diaphragm that transfer seismic loads to either the bracings, shear walls or moment frames. What do you think about flat slab construction where there is no frame action. Is flat slab suitable for a high rise building in high seismic zone?
Absolutely not, as in flat slabs punching shear occur and to control this drop panels or drop panels with column capitals are used in low rise apartments, buildings. We can move towards band or waffle salbs but it depends upon totally usage.
Cool video
Thanks for the feedback!
Should be implemented everywhere
What would be a reasonable and economical option for small scale home like two story in high risk zones.
Good video
Is there a public library of sort where i can check the structural frames used on one of the building where i go to work? This is in philippines by the way, my office is in 24th and 12th floor and we currently near the west fault valley which scientist says one of the most dangerous fault in my area. Just for my piece of mind cuz were still getting earthquake like every other month.
Tectonic or vertical ground movement...what is the structural design consideration? Thanks
So, for a 2-3 story residential, can they put a large water tank on the roof as the mass damper, in conjunction with base isolation systems underneath the structure?
shouldve done a demonstration of all of it in place, also whats the best set up for 1 -2 story house
thank you! I want to start my own developer company for buildings in mexico in the future. People self build their homes over there....
Suddenly watch first time your vedio...
Like subscribe just now..
Content method is very good...
So if you build a building on top of roller bearings, does that mean there arent any structual pylons used for foundations?
Hi, is this mola model still available? How much?
Sir pls. Explain what happened to Hyatt hotel in baguio in 1992 EQ
The ConXTech steel structure design is the best I’ve built
Did you know that in California making new states laws for climate change like cities and/or counties allow make climate resilience districts use any funds(taxes, grants) for improving any eligible projects that have high risk of wildfire, Flooding, sea level rise, extreme heat or cold, etc ( ca laws bill SB- 852- Dodd). For California state department of transportation have to improve highway systems for wildlife animals( ca laws bill AB- 2344 - Friedman and Kalra). Housing zoning will keep changing because climate change by state mandated local program( ca laws bill AB-1445- Levine).
Thank you for your video. May I introduce your video on MOTIVE? a knowledge-sharing platform for civil engineers.
#1 Northridge earthquake made a very top heavy TV on a little table slide on wood floor instead tip over!
So in theory and especially cost aside, if you combine all these into one building along with the best materials and a "prepared" furniture and machinery inside could you make that building quake proof without great damage?
Proud to be associated as a Structural Engineer of this Ram Mandir 🙏🙏🙏
What if the movement of earthquake have some vertical apart from horizontal what support is needed?
That's it? I thought there's much more. Elastic joints, elastic concrete, steel wires,... This vid makes me more anxious about earthquakes not less
how to allow partition wall heads to expand and contract
with movement of the structure
Is there any natural frequecy for an earthquake? If the natural frequency of building match the earthquake, resonance may happen and cause destructive effect. Is there any dynamic system that can damp most of the earthquake energy, while using the least material?
Hundreds
To earthquake proof a building you have to combine the brace ,water damper and seismic base isolation as shown in the video the building wouldn’t shake at all during an earthquake
Btw I’m 10 years old my name is Aadi
Good very good job and video 👍 Muhammad Latif master Lahore Pakistan
can u do something where it sits on water?
In Nepal I saw a building near naxal, that uses such technique....
I lived in wet swampy land, where every years flooded because of high tide. We called it tanah gambut, Can it be possible for this swampy area land. Be it possible to prevent liquifaction case? Area indonesia. Every island in here different.
I was surprised I knew nothing about these techniques except base isolation.
أنا بصدد عمل خارطة لبناء فلة 3 طوابق كيف يمكنك أن تساعدني
Cool video can i have a favor can we get you as our respondent for our thesis can we interview you . Our topic si Earthquake proof we just need someone who are have the knowledge in earthquake proofing ❤️ thank you
Could this builds hold a maximum earthquakes?
Can u please tell me the best university for PhD in Earthquake Engineering? And can u do PhD in Earthquake Engineering if u have a Masters in Structural Engineering?
I have a Question about Base Isolation: what keeps the building frame from hitting the Foundation wall in a Severe Quake-unless there are dampers??
The Water tank on top is Interesting. But, what you had a tall, narrow "Dummy Tower" in the middle of All high-rise and mid-rise buildings. It would be a continuation of the central vertical columns. And, Then, on top of those columns, you had narrow poles made of Carbon Fibre or some other space-age material.
I''m thinking of a Vertical Bullwhip here. A whip cracks at >Mach One because of transfer of momentum from the handle to the fall, and finally-the cracker. Similarly-the tower and poles could theoretically transfer momentum from the ground-shaking to the less massive tower and poles, similar to a Cue Ball striking an Object Ball.
i have 1.5m x 3m @ 3.5feet depth kiddie pool on my rooftop, does it help somehow mitigate earthquake?
The load must be included on testings and planning.
Turkey and Syria need this.
Is S shaped building earthquake resistant?
Could these be done in a house or townhouse?
Wood shear walls (plywood nailed to wood wall studs) in the U.S. are often done with small houses/townhouses.
Yes,your building has all the safeguard designs of not collapsing in case of earthquakes..but what guarantee can you give that it will not collapse if there is LIQUIFICATION OF SOIL in a strong earth quake ? Like magnitude 7.5 as it struck turqiye..u can see whole buildings submerged but not completely destroyed..
If you've got a soil type that liquefies, you either put very big poles down to solid rock, or you don't build there.
Too many disasters come back to people building cities in places that just aren't good places to build.
Can we make buildings with jelly?
Sure they will be wobbly though!
Imagine designing and doing all of these things, likely earthquake proof almost completely
Can jet fuel melt steel beams?
👌👌👌🔥🔥🔥
So the real problem isn't earthquakes but architects. Got it haha
1:45 What kind of material is used in the construction, is it cement? Is there a person who has the origin of his mother?