Double-cable composite damping cable

A composite damping and damper technology, applied in the field of damping cables, can solve the problems of reducing structural swing suppression, reducing cable axial stiffness, and small cable spacing, etc., to achieve reduced additional force, significant cable force changes, and longitudinal The effect of low stiffness

CN104404886BActive Publication Date: 2016-02-17HUNAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-02-17

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Abstract

The invention discloses a double-cable composited damping cable which comprises a main cable, an auxiliary cable, a first support, a second support and a viscous damper. The first support and the second support are installed on the ground, one end of the main cable is connected with a bridge main beam, the other end of the main cable is connected with one end of the viscous damper, the other end of the viscous damper is connected with the first support, the auxiliary cable is located above the main cable, two ends of the auxiliary cable are respectively connected to the bridge main beam and the second support, and the main cable and the auxiliary cable are connected through multiple vertical booms. The main cable and the auxiliary cable are combined, so that the sag of the main cable is basically eliminated, the longitudinal (axial) rigidity of the main cable is large due to small sag when larger-amplitude structural vibration is produced, and the cable force change is remarkable. Due to the fact the auxiliary cable is large in sag, the longitudinal rigidity of the auxiliary cable is small, the cable force change is very small, and conditions are provided for energy consumption on horizontally and remotely installed damper.
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Description

technical field

[0001] The invention relates to a damping cable, in particular to a double-cable composite damping cable. Background technique

[0002] Viscous dampers are widely used in structural wind and earthquake resistance because of their advantages such as strong energy dissipation capacity, reliable operation, good robustness, convenient installation, and low cost. When the viscous damper performs energy dissipation and vibration reduction on structural vibration, it needs to be installed at a point near the structure that has relative motion with the structure, and the piston rod of the damper is driven to reciprocate relative to the cylinder through the relative motion between the structure and the point. The movement dissipates energy, thereby reducing the vibration of the structure.

[0003] Under the action of earthquake or wind, super high-rise buildings will experience large-scale lateral vibration (or vibration). The existing vibration reduction technology ...

Examples

Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the present invention includes an auxiliary cable 2, a boom 3, a main cable 4, a viscous damper 5, a first support 6-1 and a second support 6-2, and the first support 6-1, The second support 6-2 is all installed on the ground, one end of the main cable 4 is connected with the bridge girder 1, the other end is connected with one end of the viscous damper 5, and the other end of the viscous damper 5 is connected with the first The support 6-1 is connected, the auxiliary cable 2 is located above the main cable 4, the main cable 4 and the auxiliary cable 2 are located in the same plane, the main cable 4 is straight, and the auxiliary cable 2 is in the middle The two ends of the auxiliary cable 2 are respectively connected to the main girder 1 of the bridge and the second support 6-2, between the main cable 4 and the auxili...