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Buckling-shearing metal damper applied to shock isolation layer

A metal damper, shear type technology, applied in the direction of earthquake resistance, building type, building components, etc., can solve the problem of difficult to meet the large deformation demand of the seismic isolation layer, the deformation capacity is small, etc., to prevent harm to human health and pollution of the environment. , The effect of strong deformation ability and low price

Pending Publication Date: 2020-10-16
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, ordinary metal shear dampers and friction dampers have small deformation capabilities, which are difficult to meet the large deformation requirements of the isolation layer.

Method used

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  • Buckling-shearing metal damper applied to shock isolation layer
  • Buckling-shearing metal damper applied to shock isolation layer
  • Buckling-shearing metal damper applied to shock isolation layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: Arranged on both sides of the shock-isolation support:

[0023] Such as figure 1 As shown, a buckling-shear type metal damper includes a corrugated tube 1, an upper connecting plate 2, a lower connecting plate 3, an annular brace 4, an L-shaped connecting piece 5, etc.;

[0024] (1) Clamp one end of the corrugated tube 1 between the upper connecting plate 2 and the annular support plate 4, such as Figure 5 As shown, the edge of the corrugated tube 1 is flush and coplanar with the upper surfaces of the upper connecting plate 2 and the annular support plate 4, and the three are welded and fixed at the splicing position of the upper surfaces. Similarly, the other end of the corrugated tube 1 is welded and fixed to the lower connecting plate 3 and the annular support plate 4 to form a damper component;

[0025] (2) Fix the L-shaped connector 5 on the upper pier 9 through the embedded bolt 12 . When pouring the upper pier 9, connecting bolts should be embedded...

Embodiment 2

[0029] Embodiment 2: Arranged at the bottom of the beam on the seismic isolation layer:

[0030] The buckling-shear type metal damper can be directly installed on the bottom of the seismic isolation beam 14 .

[0031] When the size of the damper is small, such as Figure 9 As shown, the upper connecting plate 2 of a plurality of damper parts arranged side by side is fixed on the bottom of the seismic isolation beam 14 through embedded bolts 12, and the lower connecting plate 3 of the damper part is connected to the foundation beam 15 through a steel connector 13 Fixed connection, the lower connecting plate 3 and the section steel connector 13 are connected and fixed by high-strength bolts 11 , and the section steel connector 13 and the foundation beam 15 are connected and fixed by embedded bolts 12 .

[0032] When the size of the damper is large, such as Figure 10 As shown, the upper connecting plate 2 of the damper is fixed to the bottom of the seismic isolation beam 14 th...

Embodiment 3

[0034] Example 3: Seismic isolation layers arranged in other seismic isolation systems:

[0035] The buckling-shear type metal damper proposed by the present invention can also be used in combination with other shock-isolating devices 16, such as friction-slip shock-isolation bearings, friction pendulum shock-isolation bearings, and the like. In the same way, by repeating the four operation steps in Example 1, the dampers can be arranged on one side, both sides, and around other shock-isolating devices 16; by repeating the operation in Example 2, the dampers can be arranged on other isolation devices 16. The bottom of the seismic isolation floor beam of the seismic system, such as Figure 11 shown. A composite seismic isolation system composed of buckling-shear metal dampers and friction-slip isolation bearings or friction pendulum isolation bearings. The damper can provide high damping and lateral force resistance for the isolation layer, and exert energy dissipation, limit...

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Abstract

The invention discloses a buckling-shearing metal damper applied to a shock isolation layer and belongs to the technical field of engineering structure shock absorption and isolation. The metal damperis applied to the shock isolation layer of a shock isolation building and comprises a corrugated cylinder (1), an upper connecting plate (2), a lower connecting plate (3), an annular supporting plate(4) and an L-shaped connecting piece (5), wherein the corrugated cylinder (1) is cemented to the upper connecting plate (2), the lower connecting plate (3) and the annular supporting plate (4) to form a damper component, the L-shaped connecting piece (5) is fixed to an upper buttress (9) of the shock isolation layer, the upper connecting plate (2) is fixedly connected with the L-shaped connectingpiece (5), and the lower connecting plate (3) is fixedly connected with a shock isolation support lower connecting plate (6). When the upper buttress (9) moves horizontally, the upper connecting plate (2) moves along with the upper buttress (9), the corrugated cylinder (1) generates tension-pressure buckling deformation and bending shearing deformation, damping and lateral force resisting rigidity can be provided for the shock isolation layer in any horizontal direction, the deformation of the shock isolation layer is suppressed, energy is dissipated, and therefore the function of protectingan upper structure is achieved.

Description

technical field [0001] The invention relates to an engineering structure shock absorption and isolation technology, which is mainly used for shock isolation and energy consumption of building structures. Background technique [0002] Engineering seismic isolation and shock absorption technology is one of the major innovations in the field of earthquake engineering in the past half century. Adding shock-absorbing and isolating devices to building structures can effectively reduce the response of the structure under earthquake action, and significantly improve the seismic performance and disaster resistance of the structure, which has been widely used in practical engineering. [0003] Ordinary metal shear dampers, friction dampers and viscous dampers usually only play a role in the direction of their arrangement, and have little or no effect in other directions. Therefore, in actual engineering, the structural A certain number of dampers are arranged both longitudinally and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/02E04H9/021
Inventor 李虎杜永峰李芳玉韩博张超王光环
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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