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Flexural type inhaul cable particle damper

A kind of cable particle and bending technology, which is applied to bridge parts, building components, bridges, etc., can solve the problems of high damping medium sealing requirements, high maintenance costs, and sensitivity to temperature changes, and achieve simple manufacturing process, convenient combination, easy to get effect

Active Publication Date: 2013-06-19
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among these commonly used dampers, the hydraulic damper, that is, the viscous damper, is the most widely used and the technology is the most mature. However, this kind of damper is expensive, requires high sealing of the damping medium, is prone to oil leakage, and has high maintenance costs. , sensitive to temperature changes

Method used

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  • Flexural type inhaul cable particle damper
  • Flexural type inhaul cable particle damper
  • Flexural type inhaul cable particle damper

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Embodiment Construction

[0034] Please refer to the accompanying drawings for a further description of the present invention.

[0035] like figure 1 As shown, the present invention provides a curved cable particle damper, which includes a damper lower support frame 1 , a bendable particle container 2 , filling particles 3 and a connection system 4 .

[0036] like figure 2 As shown, the lower support 1 of the damper is welded by an upper steel plate 11, a lower steel plate 13 and a section of steel pipe 12. Screw holes are set on the steel plate, the lower steel plate 13 is fixed on the bridge deck with expansion bolts, and the upper steel plate 11 is set with a certain inclination angle for To fix the flexible particle container 2, connect it with bolts. For the welding of the upper and lower steel plates and the steel pipe 12, first weld a steel ring with a diameter slightly larger than the steel pipe to the steel plate, and weld four triangular steel blocks around the steel ring to support the st...

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Abstract

The invention discloses a flexural type inhaul cable particle damper which comprises a damper lower portion support frame, a flexible type particle container, filler particles and a connection system. The upper steel plate of the damper lower portion support frame is in screw joint with one end of the flexible type particle container, the other end of the flexible type particle container is connected with the connection rod of the connection system, and the connection rod is connected with a rope sling through a bolt. The flexural type inhaul cable particle damper has the advantages that the flexibility of the container is used, the vibration action of the inhaul cable are transmitted to the particle container through the transmitting-down function of the connection rod, the bending vibration of the container is aroused, the particles are further driven to move, energy is consumed by the mutual collision and friction among the particles and the particles and the container, a using environment is not influenced by the changing of temperature, manufacturing cost is low, and suitable bandwidth is wide.

Description

technical field [0001] The invention belongs to the field of vibration control of civil engineering structures, and in particular relates to a curved cable particle damper. Background technique [0002] In recent years, long-span cable-stayed bridges have been widely used in the construction of sea-crossing and river-crossing bridges. The increase of the span of the bridge will lead to the reduction of the rigidity of the superstructure, and it will be more prone to vibration under the action of vehicles, wind and other loads, which will cause the vibration of the stay cables. At the same time, in order to meet the requirements of navigation and flood discharge, cable-stayed bridges are generally built relatively high, and the wind speed at high places is high. A direct problem brought about by this is the aggravation of the vibration of the cable-stayed cables. Under the action of the above two factors, if the vibration of the cable is not controlled, it will cause serious...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E01D19/00
Inventor 淡丹辉陈祖贺徐斌孙利民
Owner TONGJI UNIV
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