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Damper gain apparatus

A technology of damper and parallelogram, which is applied in the installation device of cable-stayed bridge vibration damper and gain device of cable-stayed bridge vibration damper, which can solve the problem of low damper deformation efficiency, high installation and use costs , Reduce the appearance of the bridge and other problems, achieve the effect of reducing the number of dampers used and improving efficiency

Inactive Publication Date: 2008-12-17
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

[0002] At present, external vibration dampers for cables of cable-stayed bridges are widely used, and most of them are installed in a triangular form. The deformation efficiency of the cable deformation transmitted to the damper is low; The installation height reduces the appearance of the bridge; in addition, the existing damper device, in many cases, requires at least two damper installation devices for one cable to meet the needs of use, and the cost of installation and use is relatively high. ; there is a need to improve it

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Embodiment Construction

[0021] A cable-stayed bridge cable vibration damping damper installation device includes an upright column, a cable clamp, a frame, a center damper and a corresponding connecting head. The component form that can be selected is a parallelogram mechanism, or a special parallelogram, such as a rhombus, rectangle, square mechanism, and so on.

[0022] One end of the two diagonal vertices of the parallelogram mechanism is connected to the cable clamp, and one end is fixed to the top of the column, which is called a fixed point. The fixed point connected to the cable clamp is called the upper fixed point, and the fixed point connected to the column is called the lower fixed point. Any two side members of the parallelogram member must be able to deform freely. The central damper must connect the other two vertices of the parallelogram mechanism, which is called the active point. The two fixed points of the parallelogram mechanism can be installed on a vertical line or not on a vertical ...

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Abstract

The invention relates to a damper installation bracket, in particular to a damper installation device for stay cables of a cable-stayed bridge, namely a damper gain device for the stay cables of the cable-stayed bridge. The device consists of a column, a cable clamp, a frame, a central damper and corresponding joints. The main part is a parallelogram mechanism and the lengths of four frames of which can be equal as a rhombic mechanism; under special conditions, the square mechanism can be adopted. The parallelogram mechanism with unequal adjacent sides is adopted, and rectangular mechanism can be adopted under special conditions. The mechanism in the types has small-amplitude point-to-point deformation characteristic and leads the diagonals to generate large displacement; therefore, the gain device can effectively increase the deformation of the stay cables, thus exerting the efficiency of the damper. The mechanism of the invention can reduce one damper, greatly saves the investment cost of the cable-stayed bridge, reduces the installation height of the damper and improves the whole beauty of the cable-stayed bridge.

Description

Technical field [0001] The patent of the present invention relates to a damper, in particular to a cable-stayed bridge cable vibration damping damper installation device that can give full play to the efficiency of the damper—a cable-stayed bridge cable vibration damping damper gain device. Background technique [0002] At present, external damping dampers for cable-stayed bridges are widely used, and most of them are installed in triangles. The deformation efficiency of cable deformation transmitted to the damper is low; at the same time, in order to increase the efficiency of the damper, the damper needs to be improved. The installation height reduces the aesthetic appearance of the bridge. In addition, the existing damper device, in many cases, requires at least two damper installation devices for a cable to meet the needs of use, and the installation and use costs are high. ; It is necessary to improve it. In traditional dampers, such as the structure used on the Arazu Bridge...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04
Inventor 陈艾荣马如进王达磊阮欣
Owner TONGJI UNIV
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