Cable stay shock absorber
A shock-absorbing device and cable-stayed technology, which is applied to bridge parts, bridges, buildings, etc., can solve the problems of cable-stayed cables that consume huge manpower and material resources, poor installation self-adaptation, and damper failure, etc., and achieve simple and reliable structure, automatic Strong adaptability and simple maintenance effect
Active Publication Date: 2016-03-09
WUXI FUYO TECH
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Problems solved by technology
All kinds of problems caused by the vibration of the cable-stayed cables generally cost a lot of manpower and material resources to carry out the cable-changing project of the cable-stayed bridge
However, this type of damper should be installed at an angle of 90 degrees to the cable. When the inclination angle between the cable and the bridge deck is ≤45 degrees, the installation of the external damper on the bridge cable is difficult, and it is easy to cause leakage of damping fluid, resulting in damping device failure
At the same time, the existing external dampers for bridge cables can only suppress the in-plane vibration, but cannot control the out-of-plane vibration of the cables.
Due to the adjustment of the cable force during installation, the installation self-adaptation is poor
Method used
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[0013] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0014] Figure 1~3 Among them, it includes cable clamp 1, transmission rod 2, first stage rod 2-1, second stage rod 2-2, slide plate 2-3, triangular transmission lever 3, transverse transmission device 4, bracket body 4-1, the second stage rod A support 4-2, a second support 4-3, a bridge cable external damper 5, a support frame 6, a circular arc gap 7, etc.
[0015] Such as Figure 1~3 As shown, the present invention is a cable-stayed cable damping device, comprising a support frame 6, the upper surface of the support frame 6 is fixedly provided with a transverse axis-circling transmission device 4 and an external damper 5 for a bridge cable, wherein Transverse axis transmission device 4 includes a support body 4-1, a first support 4-2 fixed on the top of the support body 4-1 and a second support 4-3 connected to the first support 4-2, so...
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The invention belongs to the technical field of bridge engineering structure damping, and particularly relates to a stay cable damping device. The stay cable damping device comprises a support. A transverse around-shaft transmission device and an externally-placed damper of a bridge cable are arranged on the upper surface of the support, wherein the transverse around-shaft transmission device comprises a support body, a first support base fixed to the top of the support body and a second support base connected to the first support base. A third support base is fixed to the top of a box body of the externally-placed damper of the bridge cable. Two angle points at the bottom of a triangular transmission lever are connected to the second support base and the third support base respectively, the other angle point of the top portion of the triangular transmission lever is connected with a transmission rod, and the other end of the transmission rod is fixedly connected with a cable clamp. According to the adjustable transmission rod, position adjustment in the process of installation is provided, the self-adaptation capacity is strong, installation is convenient, and the stay cable damping device is simple and reliable in structure, easy to maintain and long in service life.
Description
technical field [0001] The invention belongs to the technical field of damping of bridge engineering structures, in particular to a stay cable damping device. Background technique [0002] The main load-bearing components of a cable-stayed bridge are stay cables. The characteristics of the cable are large slenderness ratio, small mass, large flexibility and small damping, and its logarithmic attenuation rate is generally below 0.01. The cables are prone to various vibrations under external excitation, and fatigue damages the cables and even the bridge structure. The vibration of the cable-stayed bridge will not only cause the fatigue damage of the cables and anchors, but also damage the sheath and the cable casing, accelerate the corrosion rate of the cables, and bring psychological uneasiness to people. The various problems caused by the vibration of the stay cables generally consume huge manpower and material resources to carry out the cable replacement project of the st...
Claims
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IPC IPC(8): E01D19/04
Inventor 王惠强王豫顾钦钦
Owner WUXI FUYO TECH