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Deformable tuyere for inhibiting wind-induced vibration of bridge

A wind-induced vibration and air nozzle technology, applied to bridges, bridge parts, bridge construction, etc., to improve adaptability, reduce energy consumption, and protect internal structures and equipment

Inactive Publication Date: 2020-07-24
CENT SOUTH UNIV
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  • Abstract
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  • 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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  • Deformable tuyere for inhibiting wind-induced vibration of bridge
  • Deformable tuyere for inhibiting wind-induced vibration of bridge
  • Deformable tuyere for inhibiting wind-induced vibration of bridge

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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 tuyere for inhibiting wind-induced vibration of a bridge. The deformable tuyere comprises a flexible framework, a flexible panel, an inhaul cable, a pulley, a rigidtip and a motor. The deformable tuyere for inhibiting wind-induced vibration of the bridge is an active pneumatic measure, and the geometrical shape of the tuyere can be adjusted according to the characteristics of incoming wind and the state of the bridge, so that the pneumatic shape of the bridge is changed, the wind resistance of the bridge is improved, and the problem of wind-induced vibration 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 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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IPC IPC(8): E01D19/00
CPCE01D19/00
Inventor 魏晓军伍浩何旭辉
Owner CENT SOUTH UNIV
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