# US 11,299,902 B2 · Damping system utilizing space between stair chamber and inner building

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- Number: US 11,299,902 B2
- Document ID: US11299902B2
- Status: Granted
- Kind: B2
- Application number: 16/326,891
- Filed: 2017-10-25
- Published: 2021-09-09
- Granted: 2022-04-12
- Earliest claimed: 2016-12-20
- Assignees: Industry-Academic Cooperation Foundation, Dankook University
- Applicants: Industry-Academic Cooperation Foundation, Dankook University
- Inventors: Sang Hyun Lee; Lan Chung; Tae Won Park; Moo Won Hur; Ji Eun Roh
- Web page: https://patentgrep.com/patent/US11299902B2

## CPC

- E04H 1/04: Apartment houses arranged in two or more levels
- E04H 9/0237: {Structural braces with damping devices}
- E04B 1/98: against vibrations or shocks (on foundations E02D31/08); against mechanical destruction, e.g. by air-raids (against incendiary damage only E04B1/94; finishing work therefor E04F; buildings withstanding earthquake or the like, shelters, arrangements of splintercatching walls E04H9/00)
- E04H 9/021: {Bearing, supporting or connecting constructions specially adapted for such buildings}
- E04H 9/0215: {involving active or passive dynamic mass damping systems}
- E04H 9/0235: {Anti-seismic devices with hydraulic or pneumatic damping}
- E04H 9/027: {Preventive constructional measures against earthquake damage in existing buildings}
- F16F 7/12: using plastic deformation of members {(F16F9/30 takes precedence; yieldable means for mounting bumpers on vehicles B60R19/26; yieldable or collapsible steering columns B62D1/192)}
- E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D)
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION

## Abstract

The present invention relates to a damping system that utilizes a space between an inner building and a stair chamber installed outside the inner building to control vibration of an earthquake applied to a building or a building structure, and more particularly, to a damping system utilizing a space between a stair chamber and an inner building, which is installed in a building structure including the inner building and the stair chamber to damp a transverse force due to seismic waves.

## Claims

### Claim 1

A damping system, which is installed in a building having frames and a shear wall as a structure and further having a stair chamber, wherein the frames include columns and beams, and wherein the stair chamber is protruded on a surface of the building, comprising:
an extension frame extending from a surface of the frame to a surface of the stair chamber and made of the same material as the frame;
a seat frame extending from a surface of the stair chamber to be spaced vertically from the extension frame, the seat frame made of a shear wall which is made of the same material as the stair chamber, and providing a seating surface that faces a surface of the extension frame;
a damping device, which is fixed between the seating surface of the seat frame and the extension frame and which is configured to be moved horizontally; and
a coupling unit integrally fixing the damping device to the seating surface of the seat frame and the extension frame,
wherein the damping device moves horizontally in a state in which the damping device is interposed between the extension frame and the seat frame to absorb a transverse force transferred to the frame while being sheared by a vibration and a transverse displacement of the extension frame as the damping device supports the extension frame while the seating surface of the seat frame is moved relative to the extension frame.

### Claim 2 (depends on 1)

The damping system of claim 1, wherein the damping device includes an isotropic structure.

### Claim 3 (depends on 2)

The damping system of claim 2, wherein the isotropic structure facilitate relative isotropic motion against the direction of movement of the extension frame.

### Claim 4 (depends on 1)

The damping system of claim 1, wherein the coupling unit includes:
fixed plates fixed to the seating surface of the seat frame and the extension frame, respectively;
a coupling member passing through the fixed plate fixed to the seating surface and the fixed plate fixed to the extension plate; and
nuts coupled to sides of the coupling members.

### Claim 5 (depends on 1)

The damping system of claim 1, further comprising:
a housing located between the extension frame and the seat frame and configured to seal an outside of the damping device.