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Friction-lead composite damper

A technology of friction damper and composite damping, which is applied in the direction of building components, shockproof, etc., can solve the problems of unable to reset and replace, loss of energy consumption capacity, etc., achieve the best practical value and economic benefits, increase energy consumption capacity, and make simple Effect

Inactive Publication Date: 2013-08-28
CENT SOUTH UNIV +1
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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 lead shear dampers may be sheared due to being unable to withstand excessive deformation, lose energy dissipation capacity, and cannot be reset and replaced after the earthquake difficulty

Method used

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Embodiment Construction

[0031] 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.

[0032]The friction-lead composite damper includes a lead shear damper and a friction amplification damper, and the lead shear damper and the friction amplification damper are connected in series through a driving link 9 . End fixing plate ends 11 are provided at both ends of the lead shear damper and the friction amplification damper connected in series. An end fixed plate hinged end 12 is also arranged on the end 11 of the end fixed plate, and a connecting bolt 2 is arranged on the hinged end 12 of the end fixed plate. The lead shear damper includes a friction damper outer box 1, and the friction damper outer box 1 is provided with an arc-shaped friction groove 3, a friction amplification rod rotation groove 4, a drive link movement groove 5 and a friction amplification rod ...

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Abstract

The invention provides a friction-lead composite damper which comprises a lead shear damper and a friction amplification damper, the lead shear damper and the friction amplification damper are connected in series through a drive connecting rod, and therefore serial connection between the traditional lead shear damper and the friction amplification damper is achieved. After serial connection, end portion fixing plates are arranged on an outer box of the friction damper and the end portion of an outer plate of the lead shear damper, and therefore the novel friction-lead composite damper which has large stroke and a self-restoration characteristic is formed, wherein the novel friction-lead composite damper can protect the lead damper against shear damage under the condition of large deformation, the friction amplification damper can continue to carry out energy consumption, and an automatic restoration function after an earthquake can be achieved. The friction-lead composite damper solves the problems of large deformation, poor continuous energy consumption ability and poor restoration after the earthquake of the traditional lead shear damper.

Description

technical field [0001] The invention relates to a composite damper, in particular to a composite 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 dampe...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 国巍余志武彭秒培刘汉云刘鹏
Owner CENT SOUTH UNIV
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