Lead shearing damper
A technology of damper and shear bar, which is applied in the direction of building components, earthquake resistance, etc., can solve the problems of insignificant energy consumption efficiency, difficulty in reset and replacement, single energy consumption mechanism, etc., and achieve good reset ability and auxiliary energy consumption performance, High practical value and economic benefits, simple effect of factory production
Inactive Publication Date: 2015-02-18
CENT SOUTH UNIV +1
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Problems solved by technology
Some of them have been applied in actual projects and have achieved certain results, but at the same time most of them also have some shortcomings: single energy consumption mechanism; insignificant energy consumption efficiency; no reset function
Under the action of an earthquake, the strong elastic-plastic deformation of the general lead shear damper will produce a large residual displacement, which makes it difficult to reset and replace the epicenter and after the earthquake
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[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] figure 1 It is a schematic diagram of a lead shear damper with lever amplification energy consumption and self-resetting function according to an embodiment of the present invention, figure 2 for figure 1 The sectional view of A-A in, image 3 for figure 1 The cross-sectional view of B-B in the middle, such as figure 1 , 2 , 3, the lead shear damper includes a box cover, a gap 11 is arranged in the box cover, and the gap 11 communicates with the outside of the damper, and the driving rod 3 is arranged in the gap 11 and extends to the outside of the damper along the gap 11. Two shearing rods 4 are symmetrically arranged in the lid, and the two shearing rods 4 are connected to the driving rod 3 , and the movable ends of the two shearing rods 4 are respectively prov...
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The invention provides a lead shearing damper which comprises a box cover. The lead shearing damper is characterized in that a gap (11) is formed in the box cover and is communicated with the outside of the damper, a driving rod (3) is installed in the gap (11) and extends to the outside of the damper along the gap (11), two shearing rods (4) are symmetrically installed in the box cover and are both connected to the driving rod (3), and shearing lead cores (7) are installed at the movable ends of the two shearing rods (4) respectively. Under the action of earthquakes, the driving rod drives the shearing rods to move, shearing deformation of the lead cores is achieved, and energy dissipation is achieved. As the deformation is amplified by a shearing lever, the lead shearing damper has higher energy dissipation performance than common dampers, and a shape memory alloy return spring is compressed or stretched to play a role in assisting energy dissipation.
Description
technical field [0001] The invention relates to a damper, in particular to a damper capable of realizing energy consumption amplification and self-resetting. Background technique [0002] With the deepening of the anti-seismic concept and the frequent earthquakes in the world in recent years, countries have begun to pay attention to the application of energy dissipation and shock absorption technology while conducting anti-seismic design of structures. Generally, dampers with energy dissipation capabilities are used in non-load-bearing structural parts. Lead has been popularized and used because of its full hysteresis and stable performance, and the damper manufactured by it has a simple structure and convenient processing. At present, various lead dampers have been developed at home and abroad, such as lead shear dampers, lead extrusion dampers, torsional lead shear dampers, etc. Some of them have been applied in actual projects and have achieved certain results, but at t...
Claims
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IPC IPC(8): E04B1/98
Inventor 国巍余志武刘汉云刘鹏彭秒培
Owner CENT SOUTH UNIV