Multi-level damping grading yield metal damper

A metal damper and damper technology, applied in earthquake resistance, building types, buildings, etc., can solve the problems of inability to play an energy-dissipating role, the damper dissipates seismic energy, and the yield bearing capacity of the damper is limited. The effect is remarkable, the vibration response is reduced, and the anti-vibration mechanism is clear.

Inactive Publication Date: 2017-08-18
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing metal dampers at present are energy-consuming in the yield of moderate earthquakes, which leads to a limited increase in the yield bearing capacity of the dampers during major earthquakes, and the dampers cannot play a greater role in energy consumption during major earthquakes.
There is also a part of the metal damper that yields and dissipates energy only when it is subjected to a large earthquake, while it is generally in the elastic stage during a moderate earthquake and does not dissipate energy, so the damper cannot dissipate the earthquake during a moderate earthquake The role of energy
In addition, more metal dampers are in an elastic state during small earthquakes and cannot play a role in energy dissipation

Method used

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  • Multi-level damping grading yield metal damper
  • Multi-level damping grading yield metal damper
  • Multi-level damping grading yield metal damper

Examples

Experimental program
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Effect test

Embodiment 1

[0034] to combine figure 1 and Figure 8 As shown, the present invention provides a multi-level shock-absorbing graded yield metal damper, which is arranged on the building structure. In this embodiment, the non-yielding section 4 of the connecting beam of the combined shear wall 5 is used to replace part of the connecting beam As an example of building structure application, it includes two annular dampers sleeved on the inner and outer shafts, the two annular dampers are one large and one small, and the smaller inner ring damper 2 is set on the larger outer ring damper Inside the device 1, there is a connection plate 3 between the plane parts on the left and right sides of the two ring dampers, and the two ring dampers are directly connected to the embedded parts of the coupling beam (ie, the non-yielding section 4) .

[0035] Specifically, combined with Figure 2 to Figure 4 As shown, each of the annular dampers includes arc sections at both ends and a middle section con...

Embodiment 2

[0043] Embodiment two (not shown):

[0044] On the basis of Embodiment 1, the present invention also provides a multi-level shock-absorbing graded yield metal damper. Compared with Embodiment 1, the difference lies in that this embodiment has three annular dampers, outer, middle, and inner, and Adjacent annular dampers are still connected through connection pads. Furthermore, when the application is implemented, the ring damper in the inner ring yields energy dissipation during small earthquakes (that is, the middle ring and the outer ring remain elastic during small earthquakes), and the ring damper in the middle ring yields energy dissipation only when the earthquake is of a medium magnitude (that is, the medium During the earthquake, the inner ring and the middle ring all yield and consume energy, and the outer ring remains elastic), and the annular damper of the outer ring just yields and consumes energy when a large earthquake occurs (that is, the inner ring, the middle r...

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Abstract

The invention provides a multi-level damping grading yield metal damper comprising at least two annular damper bodies coaxially arranged in an inside and outside sleeving mode. An interval is arranged between the two adjacent annular damper bodies connected through a connecting base plate; the two annular damper bodies are used for being connected with a building structure; and when bent and deformed, the annular damper body relatively located in an inner ring preferentially yields than the annular damper body relatively located in an outer ring. The multi-level damping grading yield metal damper can produce the good damping energy dissipation effect in small earthquakes, middle earthquakes and large earthquakes simultaneously.

Description

technical field [0001] The invention belongs to the field of energy dissipation and shock absorption of building structures, and relates to a staged yield damper for shock absorption. Background technique [0002] Energy dissipation and shock absorption technology is an anti-seismic technology widely used in countries all over the world, and has been widely used at home and abroad. At present, various types of dampers have been developed, such as viscous fluid dampers, viscoelastic dampers, friction dampers and magneto-rheological dampers, etc. Among them, metal dampers are durable and easy to construct because of their low manufacturing cost. The cost of maintenance and replacement is low, and it is currently the most widely used in the field of engineering structure shock absorption. [0003] The metal damper utilizes the plastic hysteretic deformation generated when the metal material yields to dissipate the energy input by the earthquake, which can effectively reduce th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 陈云刘涛蒋欢军万志威
Owner HAINAN UNIVERSITY
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