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Double-tuned liquid column damper

A damper and liquid technology, applied in the direction of building components, shockproof, etc., can solve the problem that the control effect is not as good as TMD, etc., and achieve the effect of simple installation, large economic and social benefits, and convenient maintenance

Inactive Publication Date: 2015-01-21
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But due to the limitation of aspect ratio, its control effect is not as good as TMD

Method used

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  • Double-tuned liquid column damper

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Embodiment Construction

[0014] The present invention will be described in detail below in combination with technical solutions and with reference to the accompanying drawings.

[0015] The double-tuned liquid cylindrical damper proposed by the present invention is as figure 1 shown.

[0016] The whole device is mainly composed of a lower horizontal sliding device 1, a lower horizontal spring 2, a U-shaped water tank 3, a water tank damping hole 4 and an appropriate amount of water tank liquid 5 and the like. One end of the lower horizontal spring 2 is connected to the structure, and the other end is connected to the U-shaped water tank 3, which has the function of self-resetting of the water tank; The structural vibration direction slides horizontally; the water tank damping hole 4 is set in the middle of the U-shaped water tank 3 horizontal pipe, and when the liquid 5 in the U-shaped water tank 3 passes through the water tank damping hole 4 when the water tank shakes, damping will be generated to d...

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Abstract

The invention provides a double-tuned liquid column damper, and belongs to the technical field of damping and vibration isolation of structural works. The double-tuned liquid column damper comprises horizontal sliding devices (1), a lower-layer horizontal spring (2), a U-shaped water tank (3), a water tank damping hole (4) and liquid (5) inside the U-shaped water tank (3). The U-shaped water tank (3) oscillates back and forth in the main vibration direction of a structure and is hung or supported at the maximum structural vibration displacement position of the building through the horizontal sliding devices (1), and returns through the lower-layer horizontal spring (2) connecting the U-shaped water tank (3) and the building structure. The water tank damping hole (4) is formed in the bottom of the U-shaped water tank (3), and the liquid (5) inside the U-shaped water tank (3) generates damping through the water tank damping hole (4) to consume vibration energy of the structure. The double-tuned liquid column damper can be used for both vibration control over a newly built building structure and reinforcing maintenance of existing works, and can produce high economic benefit and social benefit.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and isolation in structural engineering, and relates to a vibration control device for a building structure, in particular to a double-tuned liquid cylindrical damper for vibration control of a building structure. The invention has low cost, outstanding vibration damping effect, convenient construction and good development prospect. Background technique [0002] Since Frahm first proposed the passive tuned mass damper (Tuned Mass Damper, TMD for short) in 1909, the use of vibration absorbers to control structural vibration has become a commonly used means of vibration reduction. The vibration reduction method of TMD is to set an inertial mass or an additional water tank at the position where the structural vibration is relatively large, and a vibration reduction control system that controls the displacement and acceleration of the structure with springs and dampers. The basic principle o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98
Inventor 闫维明倪铭王瑾
Owner BEIJING UNIV OF TECH
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