View this video.
• http://www.youtube.com/watch?v=JJIsx1sKkLk" target="_blank">Video Link
It is the Greek dialect, but.....
Shows three different load-bearing structure.
a) The first bearing frame construction is lightweight.
b) The second bearing frame construction is heavy.
c) The third, bearing frame is bolted to the ground
See how nodes react when we have an earthquake.
http://www.youtube.com/watch?v=KPaNZcHBKRI