Vibration damper for ultrahigh-voltage steel tube tower

A vibration damping device and steel pipe tower technology, which is applied to towers, building components, building types, etc., can solve the problems of increasing project cost and ineffective effects, and achieve the effect of increasing damping performance

Active Publication Date: 2010-02-03
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] At present, most methods of strengthening the steel pipe tower structure are used to control its wind-induced vibration, such as increasing the cross section of the component. This passive control method not only increases the project cost, but sometimes the effect is not obvious, especially for large steel pipe towers.

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  • Vibration damper for ultrahigh-voltage steel tube tower
  • Vibration damper for ultrahigh-voltage steel tube tower

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] see figure 1 , which is a cross-sectional view of the vibration damping device for the ultra-high pressure steel pipe tower of the present invention.

[0025] The damping device for the UHV steel pipe tower provided in this embodiment includes: a damping material layer 102 and an elastic material layer 103 .

[0026] The damping material layer 102 is sheathed on the outer wall of the base steel pipe 101 of the UHV steel pipe tower.

[0027] The damping material layer 102 is selected from damping materials with low shear modulus (1.0).

[0028] The elastic material layer 103 is sheathed on the outer wall of the damping material layer 102 .

[0029] The elastic material layer 103 can be selected to be the same material as the b...

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Abstract

The invention provides a vibration damper for an ultrahigh-voltage steel tube tower. The vibration damper comprises a damping material layer and an elastic material layer. The damping material layer is sleeved on the outer wall of a base steel tube of the ultrahigh-voltage steel tube tower. The elastic material layer is sleeved on the outer wall of the damping material layer. When the base steel tube of the ultrahigh-voltage steel tube tower is bent and vibrated by influence of wind vibration, the inner surface and the outer surface of the damping material layer respectively produce compression and extension deformation so that the damping material layer bears shear stress and strain and then the vibration energy of the base steel tube can be consumed. The elastic material layer is used for limiting the free deformation of the outer surface of the damping material layer and ensuring the cooperation between the damping material layer and the base steel tube, thereby enhancing the damping performance of components and the whole structure and realizing the function of vibration damping.

Description

technical field [0001] The invention relates to the technical field of ultra-high voltage power transmission equipment, in particular to a vibration damping device for an ultra-high voltage steel pipe tower. Background technique [0002] Since nearly 2 / 3 of my country's exploitable hydropower resources are in the west, and 2 / 3 of coal resources are in Shanxi, Shaanxi and Inner Mongolia; however, 2 / 3 of my country's electricity load is distributed in the eastern coastal areas and economic areas east of the Beijing-Guangzhou Railway. developed areas. In this way, it is necessary to transmit the power generated by the energy base to the central and eastern regions where the power demand is large. [0003] In order to reduce transmission loss and improve transmission quality, my country has built the first UHV transmission line. [0004] UHV AC transmission refers to AC transmission projects and related technologies with a voltage level of 1000kV and above. UHV transmission te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/08E04B1/98
Inventor 杨靖波陈政清华旭刚韩军科陈海波吕铎
Owner CHINA ELECTRIC POWER RES INST
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