Concurrent experiments with two kinematically equivalent to a real prototype building models on a shake-table. The left model is fixed to the platen, the right one is base-isolated with <i><b><a href="https://en.wikipedia.org/wiki/commons:Category:Earthquake_protector" class="extiw" title="w:commons:Category:Earthquake protector">earthquake protectors</a></b></i>  <a rel="nofollow" class="external autonumber" href="https://www.youtube.com/watch?v=uvD5D2uhliM&amp;feature=channel_page">[1]</a>
<a href="//commons.wikimedia.org/wiki/User:Shustov" title="User:Shustov">Shustov</a>
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<span class="int-own-work" lang="en">Own work</span>