Seismic attenuation in buildings starts below ground level though, so while a TMD would play some role in an earthquake, more is going on down below to keep everything up in the air during an earthquake, including that TMD!I am including the apparatus in this as what makes this whole thing work as fa as I am aware.
...it should also be noted that I suspect that the thing is designed like that as it deals with more extreme conditions from earthquakes and typhoons in that region. While that would be much less of a problem here at One Bloor W..
42