Patent regarding the constraint between building and basement


Below are the first six tables of the overall fourteen of the patent.

In them a system of constraint of the building to the base is represented, through tie rods, which allow the building to oscillate with respect to the ground or, it would be better to say, that 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, they oscillate under the building while the building remains almost motionless.

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

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

Other types of constraints are represented in the following tables.