Smart earthquake protection with vibration control

[Pablillotron]

What happens to the car if you put the wheels inside rails with a "shock absorber" at each end of the rail?

Anyway, I'm not so sure the building is resting on wheels, you can't tell from this video, and I didn't any detailed websites about this system on the web. I don't think it is resting on top of wheels though. A very flexible material maybe?

[Pablillotron]

Light 4 - Regarding structural elements, the vertical component of earthquakes is much less critical than the horizontal ones. Also, elements like columns already withstand large amounts of vertical pressure (i.e. the weight of the building). Therefore, while a rolling table could certainly provide a more accurate representation of seismic ground motion, when testing the response of buildings, a simulation in the horizontal plane is adequate enough.

[angelotrezza]

Does it works with high and low frequancies also? Can you adjust damping?

[makubakuu]

I agree with your point but japanese already made some king of shock absorber I guess.