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Bridge self-adaptive wind vibration suppression device

An adaptive, bridge technology, applied in the direction of bridges, bridge construction, bridge parts, etc., can solve problems such as mobility that cannot meet synchronous or asynchronous, and achieve self-adjustment problems, good maneuverability, and ease of use. Effect

Active Publication Date: 2021-05-28
SHENZHEN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a bridge self-adaptive restraint for the current fixed aerodynamic control measures of bridges that cannot satisfy synchronous or asynchronous mobility, the advantages and disadvantages of mechanical measures and aerodynamic measures complementarity, and the self-adaptation of different wind-vibration performances. wind vibration device

Method used

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  • Bridge self-adaptive wind vibration suppression device
  • Bridge self-adaptive wind vibration suppression device

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Effect test

Embodiment 6

[0041]The difference between the sixth embodiment and the fifth embodiment is that the structure of the shock absorber 42 is different. The shock absorber 42 in the sixth embodiment is an elastic structure, and the shock absorber 42 is arranged between the deflectors 21 arranged in pairs. Finally, the two deflectors 21 can make asynchronous horizontal movement under the traction of the shock absorber 42 , and at this time, the stabilizing plate 31 and the deflector 21 both move asynchronously. It should be noted that elastic connectors can be provided between the deflectors 21 arranged in pairs to enable them to achieve asynchronous horizontal movement, and technicians can take into account the requirements of vibration reduction and connection during design, and the design can meet the requirements of vibration reduction. Parts, and parts that can meet the elastic connection. Based on this concept, those skilled in the art can set the same type of connecting piece 32 , linkag...

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Abstract

Disclosed is a bridge self-adaptive wind vibration restraining device. The device is arranged in a main beam of a bridge and comprises a horizontal vibration restraining assembly, the horizontal vibration restraining assembly comprises flow guide plates arranged in pairs, and the flow guide plates are arranged in the circumferential direction of the main beam and move in a reciprocating mode in the first direction so as to stretch out of or retract into the main beam; the flow guide plates arranged in pairs move face to face or relatively along the first direction; the device also comprises a vertical vibration suppression assembly comprising a stabilizing plate, the stabilizing plate is arranged at the bottom of the main beam, the stabilizing plate reciprocates in the second direction so as to stretch out of or retract into the main beam, and the first direction is perpendicular to the second direction; and a vibration reduction system comprising a linkage piece and a vibration reduction piece, the linkage piece is connected with the flow guide plate and the stabilizing plate, wherein the vibration reduction piece is used for limiting movement of the flow guide plate or the stabilizing plate. Parameters of original parts can be adjusted in time along with vibration of a bridge so as to meet the vibration suppression requirements of the bridge with different wind vibration performance requirements, and the self-adjustment problem of different wind vibration control of the large-span bridge is solved.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a bridge adaptive wind vibration suppression device. Background technique [0002] Flutter and vortex vibration of long-span bridges are the specific manifestations of aerodynamic coupling phenomena, and aerodynamic measures can fundamentally eliminate the cause of bridge wind vibration by changing the "bridge-flow field coupling resonance system", the control effect is obvious, and the cost is controlled And the cost is also small, so the flutter and vortex vibration problems of most bridges are currently controlled by aerodynamic measures. Plates, baffles, baffles, etc. Among them, the vertical stabilizing plate and the horizontal diverter plate are the first choice for wind vibration control of long-span bridges. For example, the Runyang Yangtze River Bridge adopts the vertical stabilizing plate, and the Danish sea belt bridge adopts the horizontal deflector. Howe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00
CPCE01D19/00Y02A30/30
Inventor 周锐高晓东周海俊杜彦良张晋杰
Owner SHENZHEN UNIV
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