What's under the anti-seismic buildings?

Under the anti-seismic buildings, there are, at best, a series of such media "seismic isolators", interposed between the foundation and the building structure.

These elements are made of materials ranging from stainless steel to Neoprene and appear as a kind of large cushions or pads.

Thanks to their characteristics, even during a major earthquake superstructure that rests only undergoes lateral movement (as if he were on skates), instead of being violently shaken.

TECHNICAL. Unlike other anti-seismic techniques of intervention (by tie rods attached to the networks on the walls), which aim to protect people but not necessarily of the buildings (which do not collapse but become unusable), the use of seismic isolators aims to preserve the integrity of the structure.

The isolation of an already erected the building is no small feat, but necessary for hospitals, schools or important monuments.