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Lead shear damper

A technology of damper and lead block, which is applied in the direction of building components, shockproof, etc., can solve problems such as difficult reset and replacement, achieve high practical value and economic benefits, avoid difficult replacement, and simple factory production

Inactive Publication Date: 2013-09-04
CHINA RAILWAYS CORPORATION +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the lead shear dampers currently proposed and adopted are concerned, under the action of rare earthquakes, the strong elastic-plastic deformation of the lead shear dampers will produce a large residual displacement, which makes it difficult to reset and replace after the earthquake

Method used

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Embodiment Construction

[0022] The following is a further description of the technical content of the patent of the present invention, but it is not a limitation to the essential content of the patent of the present invention.

[0023] The lead shear damper comprises an upper cover plate 2 and a lower cover plate 3, one end of the upper cover plate 2 is provided with a fixed end plate 9, and the other end is provided with an upper return spring 5, and the upper return spring 5 is fixed on the sliding end end plate 7 One end of the lower cover plate 3 is connected to the sliding end plate 7, the other end is connected to the lower return spring 6, the lower return spring 6 is fixed on the fixed end end plate 9, the upper cover plate 2 is superimposed on the lower cover plate 3, and the upper cover plate 2 The part connected with the lower cover plate 3 is provided with a shearing lead block 1 .

[0024] It also lies in that the restraint cylinder 4 is wrapped around the upper cover plate 2, the lower ...

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Abstract

The invention provides a lead shear damper comprising an upper cover plate (2) and a lower cover plate (3). One end of the upper cover plate (2) is provided with a fixed end plate (9), and the other end of the upper cover plate (2) is provided with an upper return spring (5) fixed on a sliding end plate (7). One end of the lower cover plate (3) is connected to the sliding end plate (7), and the other end of the lower cover plate (3) is connected to a return spring (6) fixed on the fixed end plate (9). The upper cover plate (2) overlaps with the lower cover plate (3). A shear lead block (1) is arranged at the connection of the upper cover plate (2) and the lower cover plate (3). Under rare earthquake action, the return springs can be compressed or elongated to realize shearing deformation of the shear lead block and energy consuming effect of friction of the upper cover plate and the lower cover plate, and return can be realized through initial pre-compression or pretension force of the return springs during and after the earthquake.

Description

technical field [0001] The invention relates to a damper, in particular to a damper capable of realizing self-resetting. Background technique [0002] In recent years, earthquakes have occurred frequently all over the world. People have begun to pay attention to the application of energy dissipation and shock absorption technology while carrying out anti-seismic design of structures. Generally, dampers with energy dissipation capabilities are used in non-load-bearing structural parts. When there are frequent earthquakes, the structure itself has sufficient stiffness and is in the elastic stage; when there are rare earthquakes, as the structural deformation increases, the damper enters the inelastic stage before the main structure, and the damping increases, energy consumption and shock absorption, so as to avoid or Reduce damage to the main structure. Lead has been popularized and used because of its full hysteresis and stable performance, and the damper manufactured by it...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 国巍余志武邬亮刘汉云彭妙培毛建锋
Owner CHINA RAILWAYS CORPORATION
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