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Self-resetting friction damper

A friction damper and self-resetting technology, which is applied to building types, buildings, building components, etc., can solve the problems of building structure stress and use functions that are difficult to repair, friction damper large displacement, etc., achieve good energy consumption effect, reduce Vibration response, the effect of extending the service life

Inactive Publication Date: 2019-09-06
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the general friction damper will produce a large displacement after the earthquake, which will bring a negative effect that is difficult to repair on the stress and function of the building structure.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0068] See attached figure 1 And attached figure 2 , the embodiment of the present invention discloses a self-resetting friction damper, including: a steel plate composite member 1, a piston member 2, a box-shaped member 3, a bottom plate 4, a fastener 5, an elastic member 6 and a friction plate 7;

[0069] The steel plate composite member 1 includes a flange plate 11 and a web 12; two flange plates 11 are arranged in parallel up and down; a plurality of web plates 12 are fixed between the two flange plates 11;

[0070] The piston member 2 is fixedly connected to the center of the bottom surface of the lower flange plate 11;

[0071] The box-shaped member 3 is a box-shaped structure with both ends open or closed, and a plurality of box-shaped members 3 are arranged around the piston member 2;

[0072] The bottom plate 4 is respectively fixedly connected to the bottoms of the multiple box-shaped components 3; the bottom plate 4 serves as the common bottom of the multiple box...

Embodiment 2

[0088] The difference between this embodiment and Embodiment 1 is that there are four fasteners 5, which are respectively fixed at the front, rear, left, and right four corners of the upper flange plate 11 of the steel plate composite member 1.

[0089] Other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

Embodiment 3

[0091] The difference between this embodiment and Embodiment 1 is that the piston member 2 is a triangular box-shaped structure composed of three steel plates, the number of the box-shaped members 3 and the friction plates 7 are three, and the box-shaped members 3 are respectively located in three On the outer side of the steel plates, the friction plates 7 are respectively located between each steel plate and the box member 3 .

[0092] Other structures and working principles of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a self-resetting friction damper. The self-resetting friction damper comprises a steel plate composite component, a piston component, a box-type component, a bottom plate, a fastener, an elastic part and a friction plate; the steel plate composite component comprises a flange plate and a web plate; the friction plate is arranged between the side plates of the piston component and the box-type component, and fastened with the side plates of the piston component and the box-type component through a plurality of connecting parts; and the friction plate slips or deforms under the predetermined load before yielding of main structural components, energy is dissipated depending on friction, the energy dissipation ability is high, and load size and frequency have little effect on the performance of the friction plate. According to the self-resetting friction damper, the energy input into the structure by earthquakes is effectively dissipated, the function of self-resetting is achieved, and the residual deformation of the damper after the earthquakes is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption, and more specifically relates to a self-resetting friction damper. Background technique [0002] The energy dissipation and shock absorption of engineering structures is to install energy dissipation devices (dampers) in certain parts of the structure, such as supports, shear walls, joints or connectors. The dampers first enter the energy dissipation state before the main structure enters the inelastic state. In the working state, a large amount of earthquake and wind vibration energy input into the structural system is dissipated, and the energy consumed by the structure itself is reduced, thus effectively protecting the main structure. [0003] There are many types of dampers, which can be divided into displacement-dependent and velocity-dependent types. Among them, the frictional energy dissipation damper is a displacement-related damper, which dissipates energ...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021E04H9/0235
Inventor 陈云罗祥
Owner HAINAN UNIVERSITY
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