A Deformable Air Nozzle Used to Suppress Wind-Induced Vibration of Bridges

A wind-induced vibration and air nozzle technology, applied in bridges, bridge construction, bridge parts, etc., to protect the internal structure and equipment, improve adaptability, and achieve the effect of simple structure

Inactive Publication Date: 2021-04-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] A deformable tuyere for suppressing wind-induced vibration of a bridge proposed by the present invention is an active aerodynamic measure, which can adjust the geometric shape of the tuyere according to the characteristics of the incoming wind and the state of the bridge, thereby changing the shape of the bridge. The aerodynamic shape improves the wind resistance performance of the bridge to solve the problem of wind-induced vibration of long-span bridges

Method used

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  • A Deformable Air Nozzle Used to Suppress Wind-Induced Vibration of Bridges
  • A Deformable Air Nozzle Used to Suppress Wind-Induced Vibration of Bridges
  • A Deformable Air Nozzle Used to Suppress Wind-Induced Vibration of Bridges

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[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " Orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", etc. are based on the orientation or position shown in the drawings The relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "fir...

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Abstract

The invention provides a deformable air nozzle for suppressing wind-induced vibration of a bridge, including: a flexible skeleton, a flexible panel, a cable, a pulley, a rigid tip and a motor. The deformed air nozzle is an active aerodynamic measure, which can adjust the geometric shape of the air nozzle according to the characteristics of the incoming wind and the state of the bridge, so as to change the aerodynamic shape of the bridge and improve the wind resistance of the bridge to solve the problem of long-span bridges. Wind-induced vibration problems.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a deformable air nozzle for suppressing wind-induced vibration of a bridge. Background technique [0002] With the use of lightweight and high-strength new materials, the development of construction and design technology, and the improvement of people's aesthetic requirements, modern long-span bridges, especially suspension bridges and cable-stayed bridges, tend to be flexible. The structural stiffness of flexible bridges is relatively small and they are sensitive to wind-induced vibrations. Wind-induced vibration (such as flutter, eddy vibration, buffeting, etc.) has become one of the controlling factors in the design of flexible bridges. Therefore, it is necessary to take effective measures to improve the wind-induced vibration performance of the bridge, and to avoid or reduce wind-induced vibration within its operating wind speed range. [0003] At present, the me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/00
CPCE01D19/00
Inventor 魏晓军伍浩何旭辉
Owner CENT SOUTH UNIV
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