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Advances in Earthquake Resistance

11/19/2014 8:50 AM

I read this this morning, it fits with a recent thread on design.rollers are used in Japan on some taller buildings. I find this sliding concept interesting and inexpensive

http://news.stanford.edu/news/2014/october/shakehouse-quake-engineering-101614.html

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#1

Re: Advances in Earthquake Resistance

11/19/2014 10:59 AM

Like we have noise-cancelling technology, we need lateral movement cancelling technology for buildings....

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#2
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Re: Advances in Earthquake Resistance

11/19/2014 11:25 AM

that would require a LOT of energy to counter the kinetic energy of a moving structure. I was thinking more along the lines of directing the energy of sliding into pushing down on existing pilings to stop the slide

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#3

Re: Advances in Earthquake Resistance

11/20/2014 9:10 AM

A percentage of that KE would be lost due to fictional losses and directed latterally and vertically into the underlying foundation, depending on the material utilized for the sliding bearing surfaces.

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#4

Re: Advances in Earthquake Resistance

11/20/2014 11:39 AM

Maybe a giant gyroscope mounted in the base of the building that started when tremors were detected...or several smaller ones....like the ones used on ships...to control dampening effects.....

http://en.wikipedia.org/wiki/Ship_stability#Gyroscopic_internal_stabilizers

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#5
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Re: Advances in Earthquake Resistance

11/20/2014 11:46 AM

But you need electric power to spool up the hydraulic motors to make this complicated Gizmo to work. Somehow, I don't think the electric grid is going to live after the first milliseconds of an event.

KISS.....include no outside energy sources that can be disrupted!

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#6
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Re: Advances in Earthquake Resistance

11/20/2014 1:59 PM

I think that might slightly drive up costs

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#7

Re: Advances in Earthquake Resistance

11/20/2014 3:01 PM

done a little differently for a bridgehttps://www.youtube.com/watch?v=cIm-7cmQwmw

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#8
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Re: Advances in Earthquake Resistance

11/20/2014 3:16 PM

Very interesting and ingenious!

I love it!!!!!!

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#9
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Re: Advances in Earthquake Resistance

11/20/2014 3:57 PM

looks as if its functional as well

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#10
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Re: Advances in Earthquake Resistance

11/20/2014 4:27 PM

I like the idea of 2 flex points rather then just the one....I was toying with the idea of a doubling of the sliding mechanism......with one mounted above the other, this would seem to further reduce the shock wave....I also like the flatter surface of the ball...which becomes a rounded cylinder....

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