You cannot install traditional isolators below tall buildings, which are already endowed by a high vibrational peiod. Viscous Dampers and/or TMD are more fit for purpose.
Yes you can, and the period is lower the taller the building is. And there are dampers installed at the ground level as part of the system. The dampers you're referring to are more for wind-induced loading.
@@HollywoodF1 You're incorrect, frequency is lower and period is longer when it comes to taller buildings (less stiffness). Also, I believe The Hyperlapser is right, I'm not sure how you could incorporate this into a tall structure without running into issues with overturning.
why don't you try two footing per coloumn' or three depending upon the height of the building? customarily when the building are constructed one footing are normally built, that is at the bottom of each foundation, now if if we add another footing between the bottom footing and the grade line, or between ground level and the footing below which in between or in the middle will surely add firm and reinforcement because of the soil will served as permanent lock around the two footings?
If it's a skyscraper shown in the video I don't believe there is a meterial dense and strong enough to support it for a long period without getting deformed. The principle and is good though.
If they put enough amount of 'that' thing, the pressure would be distributed hence making the weight of the building bearable to the material. but still dont think it would still be able to move and act as a 'stabilizer'. nice concept tho
@@zandwu2678 They can. In fact, they already have. Friction pendulum bearings (which these are a type of) have been installed and in service for decades and gone through earthquakes with flying colors. In fact, studies have suggested that in spite of the outrageously expensive regulatory burden put upon them, base isolation systems like these are probably more cost-effective over the long-term than standard "earthquake-proofing" practices.
@@randomkitty2555 The yield strength of 440C stainless steel, a high-performing but not prohibitively expensive alloy, can reach ~1900MPa (275,000psi). That means that in order to permanently deform a block of 440C requires about 50x the force necessary to crush a similarly sized block of typical concrete. In theory, that means that you'd only need enough pendulum bearings that their sliders could cover 1/50th of your foundation. In practice, you'd need even fewer than that, because concrete structures have to be made far stronger than steel ones in order to deal with concrete's brittleness.
Q1: Has this been tested in some type of laboratory environment (or is this just conceptual)? Q2: The video demonstrates lateral S (secondary) waves - - what about P (primary) waves? Primary waves produce a different type of earthquake. Nice work.
Normally the life cycle of this isolators is around 60 years. For ease of replacement, the devices are installed using bolted connections. By using lifting devices (e.g. hydraulic jacks), it is possible to replace them by lifting few millimeters and unbolting the devices.
@@magebagroup That seems like very hard job, I think that there is not a lot of space under the building, and such a hydraulic tool weighs up to 500 kilos. Whether there is enough space below for some kind of forklift? Thank you for your answer and your time.
It looks suspiciously like a bearing cup from a double shear beam loadcell, on steroids! Trouble is, with the buildings, you have a lot of weight concerntrated in a very small area. As a result, you would need some serious hydraulic jacks to lift the building up a few millimetres to get the system changed. The only thing that worries me with this system is when the ground rises or falls. How does the system cope with vertical movement?
@@111jacare Thanks for your interest in our isolation system. Yes, we have hydraulic jacks that allow the replacement of anti-seismic isolators. The vertical component of the earthquake is also considered in the design of the device, in the respective NEd,max and NEd,min (as defined in EN 15129). In most cases the vertical component is not strong enough to create temporary gaps or shocks between the components of our isolators. While in structures where uplift forces are expected, uplift restraints are also foreseen
Thank you for your comment. The anti-seismic isolators are designed for high vertical concentrated load. As reference, the sliding material used has a compression resistance of 180 MPa which for a disc of 20 cm diameter means more than 500 ton (5’000 kN) resistance
Thank you for your comment. Regarding your question there is actually no upper limit in principle. To date we have built pendulum bearings with up to 120 MN maximum vertical load.
Thanks for contacting us. Our contact in Mexico: mageba México Prolongación Corregidora Norte, No. 1116 9PH, Colonia Arboledas, C.P. 76140, Santiago de Querétaro, México www.mageba.net/es/ We are looking forward to hearing from you.
there are no benefits to use isolators for high buildings, it is better to use dampers, maybe viscous dambers. The fps is usable for building with non regularity. the limit of those devices is to non increas e the period of vibration more then 4sec, because thay cant recentrate anymore.
thanks for you comment. Please visit: www.mageba-group.com/tr/tr/ You can find contact details on the bottom of the website. Or use contact form: www.mageba-group.com/tr/tr/1068/all.htm
Ok, this a great ANIMATION- but not a a real thing, you can post again once your actual building is hit with an 8.0 magnitude earthquake let's see if it behaved like you animation.
Thanks a lot for your interest in our animation and your comment. It indeed shows the approximate behavior you can expect during a real earthquake of high magnitude 8.0 - 9.0 (Richter): the relative displacements showed are quite long (several meters at the top of the building) and the oscillation frequency around 0.5 - 1.0 [Hz]; The isolated building shows some bending though much lower than the non-isolated building.
lovely animation, very informative and engaging, and an uncommonly excellent music choice
what kind of software its used for this beautiful explanation
You cannot install traditional isolators below tall buildings, which are already endowed by a high vibrational peiod. Viscous Dampers and/or TMD are more fit for purpose.
Yes you can, and the period is lower the taller the building is. And there are dampers installed at the ground level as part of the system. The dampers you're referring to are more for wind-induced loading.
@@HollywoodF1 You're incorrect, frequency is lower and period is longer when it comes to taller buildings (less stiffness). Also, I believe The Hyperlapser is right, I'm not sure how you could incorporate this into a tall structure without running into issues with overturning.
Perfect conception
While ingenious, has consideration been given to how this will affect wet utility (water/sewer) connections to the structure?
Impresionante, un saludo
what material is used at 1:39 to carry the weight of the building while still being able to move horizontally
It’s a friction pendulum system.
i thank you bill robinson.. we will never forget you
I've seen such joints there the piller touches the road slab on bridges
What is the program name that was used to produce such an amazing video?
paint
Amazing work. 👏👏👏
why don't you try two footing per coloumn' or three depending upon the height of the building? customarily when the building are constructed one footing are normally built, that is at the bottom of each foundation, now if if we add another footing between the bottom footing and the grade line, or between ground level and the footing below which in between or in the middle will surely add firm and reinforcement because of the soil will served as permanent lock around the two footings?
I wonder how it supports the weight of the whole building..
I was just asking the same thing
If it's a skyscraper shown in the video I don't believe there is a meterial dense and strong enough to support it for a long period without getting deformed.
The principle and is good though.
If they put enough amount of 'that' thing, the pressure would be distributed hence making the weight of the building bearable to the material.
but still dont think it would still be able to move and act as a 'stabilizer'. nice concept tho
@@zandwu2678 They can. In fact, they already have. Friction pendulum bearings (which these are a type of) have been installed and in service for decades and gone through earthquakes with flying colors. In fact, studies have suggested that in spite of the outrageously expensive regulatory burden put upon them, base isolation systems like these are probably more cost-effective over the long-term than standard "earthquake-proofing" practices.
@@randomkitty2555 The yield strength of 440C stainless steel, a high-performing but not prohibitively expensive alloy, can reach ~1900MPa (275,000psi). That means that in order to permanently deform a block of 440C requires about 50x the force necessary to crush a similarly sized block of typical concrete. In theory, that means that you'd only need enough pendulum bearings that their sliders could cover 1/50th of your foundation. In practice, you'd need even fewer than that, because concrete structures have to be made far stronger than steel ones in order to deal with concrete's brittleness.
What software did you use?
Wonderful technology 😮
This video is made in either software..?
What kind of metal or what us that which is able to handle 10k tons of weight and is able to be rolled?
Merdan Kurbanov Us
Polytetrafluoroethylene
What will happen in a storm with wind speed 200 km per hour ? how to prevent overturning the tall building ?
The best👍
In our knees we have similar devices. :D.
Understanding nature is a step forward in technology. :D
А тефлон не растечётся от таких нагрузок статических?
Is this based in japan?
Yes really informative my classmate is watching thissssssss
terbaik
is there any copyright on
this video ? can we use it in the presentation ? please do reply.
Thanks for your message. Yes, the holder of the copyright is mageba. You can you use it in your presentation with "© mageba" and only in its original version. Modifications of any kind are not allowed.
magebagroup thank you very much !
Nice
Q1: Has this been tested in some type of laboratory environment (or is this just conceptual)?
Q2: The video demonstrates lateral S (secondary) waves - - what about P (primary) waves?
Primary waves produce a different type of earthquake. Nice work.
Not conceptual. already in use, base isolation course would make you understand better.
@@maheshkumar6781 - - base isolation course? The video should explain it.
It doesn't show a demonstration of how it would react to P waves.
Awesame
How we will be find the direction of earthquake for a building
Colonies around it
How does one repair one of those?
just like you repair a car tire
These are maintenance-free. They last longer than the building they support-- even if they experience design-level earthquakes.
I'm wondering how to replace or repair them when it wears out?
Normally the life cycle of this isolators is around 60 years. For ease of replacement, the devices are installed using bolted connections. By using lifting devices (e.g. hydraulic jacks), it is possible to replace them by lifting few millimeters and unbolting the devices.
@@magebagroup That seems like very hard job, I think that there is not a lot of space under the building, and such a hydraulic tool weighs up to 500 kilos. Whether there is enough space below for some kind of forklift? Thank you for your answer and your time.
It looks suspiciously like a bearing cup from a double shear beam loadcell, on steroids! Trouble is, with the buildings, you have a lot of weight concerntrated in a very small area. As a result, you would need some serious hydraulic jacks to lift the building up a few millimetres to get the system changed. The only thing that worries me with this system is when the ground rises or falls. How does the system cope with vertical movement?
@@111jacare Thanks for your interest in our isolation system. Yes, we have hydraulic jacks that allow the replacement of anti-seismic isolators. The vertical component of the earthquake is also considered in the design of the device, in the respective NEd,max and NEd,min (as defined in EN 15129). In most cases the vertical component is not strong enough to create temporary gaps or shocks between the components of our isolators. While in structures where uplift forces are expected, uplift restraints are also foreseen
Wouldn't the weight of the building crush the systems?
Thank you for your comment. The anti-seismic isolators are designed for high vertical concentrated load. As reference, the sliding material used has a compression resistance of 180 MPa which for a disc of 20 cm diameter means more than 500 ton (5’000 kN) resistance
Interesting Video , What can be the maximum load it can take
Thank you for your comment.
Regarding your question there is actually no upper limit in principle. To date
we have built pendulum bearings with up to 120 MN maximum vertical load.
Why would there be a maximum load? Just build bigger dampers.
Who is here because of Google? Thank you, Bill Robinson, for your invention!
haVe to watch for class
Sales Contact in Mexico City?
Thanks for contacting us. Our contact in Mexico:
mageba México
Prolongación Corregidora Norte,
No. 1116 9PH,
Colonia Arboledas, C.P. 76140,
Santiago de Querétaro,
México
www.mageba.net/es/
We are looking forward to hearing from you.
That's what we need in Haïti.
there are no benefits to use isolators for high buildings, it is better to use dampers, maybe viscous dambers. The fps is usable for building with non regularity. the limit of those devices is to non increas e the period of vibration more then 4sec, because thay cant recentrate anymore.
And you know better? Are a engineer?
@@ronaldbautista7134 more or less he's right
@@ronaldbautista7134 Just because you're ignorant doesn't mean everyone else is.
Türkler burdamıyız
Son Gohan evet burdayız
Chilean tecnologi 🇨🇱💯
INSTEAD OF PTFE WHY NO METAL BEARING MATERIAL.
Sales contact for Turkey?
thanks for you comment. Please visit: www.mageba-group.com/tr/tr/
You can find contact details on the bottom of the website. Or use contact form: www.mageba-group.com/tr/tr/1068/all.htm
Paano Po maintenance nyan?
change oil lang po every 1500 kilometers
Bwahaha
Nice
Of course we need the engineering paper as the back ground
(103) -我仑了沒是個
I think train could change American society as it's starting to the future. Help with construction then long-term we build a colony around it
隔震
抗震
Ok, this a great ANIMATION- but not a a real thing, you can post again once your actual building is hit with an 8.0 magnitude earthquake let's see if it behaved like you animation.
Thanks a lot for your interest in our animation and your comment. It indeed shows the approximate behavior you can expect during a real earthquake of high magnitude 8.0 - 9.0 (Richter): the relative displacements showed are quite long (several meters at the top of the building) and the oscillation frequency around 0.5 - 1.0 [Hz]; The isolated building shows some bending though much lower than the non-isolated building.
♿🍛🥛.
this animation is so wrong
lol 😂
隔震