Earthquake resistant multi-story building
US5271197A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 13, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Aug 13, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H9/028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides an earthquake resistant multi-story building which is characterized by having an energy concentration story. The energy concentration story has an elasto-plastic force-displacement relationship regarding horizontal force and displacement. The force-displacement relationship is characterized in that: (a) stiffness in elastic range (F.sub.y /d.sub.y) is generally equal to an optimal stiffness of the same story according to an elastic design concept; (b) the yield strength F.sub.y is generally less than 80% of an optimum yield strength; (c) stiffness in plastic range is positive and generally less than about a half of the stiffness in the elastic range; and (d) ultimate displacement is generally at least twice as large as the yield displacement. The energy concentration story is capable of entering into the plastic range while other stories are in the elastic range, and absorbing vibration energy by plastic deformations thereof so as to decrease deformations of other stories when a large external force is exerted to the building.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.