Earthquake-proof foundation
OwnerKuninori Moriinventor
Life of this patent
Estimating the term…
Abstract
An earthquake-proof foundation includes post trunk portions supported on separate post root portions. In an embodiment, fracturable struts and a cushioning member also are present to support the trunk portions on the post root portions. The struts will fracture under the force of seismic activity of a certain intensity whereafter the post trunk portion will be supported on the post root portions by the cushioning members. In another embodiment, the post root portions are arranged to store a liquid that is discharged during seismic activity to cushion between the post trunk portions and the post root portions. A building incorporating such an earthquake-proof foundation also is contemplated.
Claims9
An earthquake-proof foundation comprising:
- post root portions,
- post trunk portions supported upon said post root portions,
- struts for supporting said trunk portions on said post root portions, said struts being fracturable by seismic activity at a certain intensity,
- cushioning members for supporting said trunk portions on said post root portions in the event of fracture of said struts due to seismic activity at or exceeding said certain intensity, and
- a flat plate fixed on a ground surface,
- wherein said post root portions are placed on said flat plate, and said flat plate is provided with concentric speed reducing projections.
A building comprising:
- post trunk portions:
- a basement floor supporting said post trunk portions;
- post root portions;
- and
- beam members connecting adjacent of said post root portions, wherein
- said post root portions and said beam members support said basement floor.
An earthquake-proof foundation comprising:
- a post-root portion,
- a post trunk portion on said post root portion, and
- said post root portion including means for containing a liquid and receiving said post trunk portion therein whereby said foundation has a cushioning function in which liquid is pushed out of a discharge port in said liquid containing means when said post trunk portions are moved by seismic activity.
Dependencies are inferred from the claim text.