Patent regarding the constraint between building and basement


Below are the first six tables of the fourteen in total of the anti-seismic building patent, which building, more correctly, is an aseismic-building.

They represent the system that constrains the building to its basement.

The earthquake-resistant building is tied to the base by tie rods, which allow it to oscillate with respect to the ground or, better said, they allow the ground to oscillate in all directions with respect to the building. 

When the earthquake shakes the ground and, with it, the basement, the tie rods oscillate, while the building, due to the principle of inertia, remains almost immobile.

Something similar happens to a bird or a plane in flight during an earthquake. They are not damaged by the earthquake because they are suspended in the air, just as the anti-seismic building is suspended by tie rods.

The drawings show two types of joints that allow the tie rods to oscillate in all directions and, to a limited extent, also to turn through small angles.

Other types of constraints are described in subsequent tables, not published here.