# US 2019/0376306 A1 · Viscoelastic bracing damper

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- Number: US 2019/0376306 A1
- Document ID: US20190376306A1
- Status: Published application
- Kind: A1
- Application number: 16/433,300
- Filed: 2019-06-06
- Published: 2019-12-12
- Earliest claimed: 2018-06-06
- Assignees: Universiti Putra Malaysia
- Applicants: Universiti Putra Malaysia
- Inventors: Farzad Hejazi; Mohd Saleh Jaafar
- Web page: https://patentgrep.com/patent/US20190376306A1

## CPC

- E04H 9/0237: {Structural braces with damping devices}
- E04H 9/027: {Preventive constructional measures against earthquake damage in existing buildings}
- E04H 9/0215: {involving active or passive dynamic mass damping systems}
- E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D)

## Abstract

The present invention relates to a viscoelastic bracing damper (100), comprising: a cylinder (101); an inner core (102) extended through the cylinder (101) without contacting an inner surface of the cylinder (101), thereby having a barrel portion formed between the inner surface of the cylinder (101) and the inner core (102); a joint (103) connecting a front connector (104) to one end of the inner core (102); a stopper (105) connecting an end connector (106) to an another end of the inner core (102); and characterised by a damping means (107) extended substantially along a length of the barrel portion; wherein the damping means (107) is compressed between the inner surface of the cylinder (101) and the inner core (102) for absorbing vibration loads.

## Claims

### Claim 1

A viscoelastic bracing damper (100), comprising:
a cylinder (101);
an inner core (102) extended through the cylinder (101) without contacting an inner surface of the cylinder (101), thereby having a barrel portion formed between the inner surface of the cylinder (101) and the inner core (102);
a joint (103) connecting a front connector (104) to one end of the inner core (102);
a stopper (105) connecting an end connector (106) to an another end of the inner core (102); and
characterised by
a damping means (107) extended substantially along a length of the barrel portion;
wherein the damping means (107) is compressed between the inner surface of the cylinder (101) and the inner core (102) for absorbing vibration loads.

### Claim 2 (depends on 1)

The viscoelastic bracing damper (100) according to claim 1, wherein the damping means (107) is a viscoelastic material.

### Claim 3 (depends on 2)

The viscoelastic bracing damper (100) according to claim 2, wherein the viscoelastic material comprises rubber.