Wind fairing structure for controlling buffet of cable-stayed bridge

A technology for cable-stayed bridges and air nozzles, which is applied to cable-stayed bridges, bridges, bridge parts, etc., can solve problems such as poor flutter stability, and achieve the effect of improving flutter stability and increasing the critical wind speed of flutter
CN101058971AInactive Publication Date: 2007-10-24TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2007-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a tuyere structure used for stayd-cable bridge buffeting control, its features are: two side of stayd-cable bridge main beam are equipped with tuyere structure, the tuyere structure is composed by thin-wall steel box, the lateral section of the thin-wall steel box is triangular. When the tuyere structure used for stayd-cable bridge buffeting contro is used, the tuyere structure is composed by thin-wall steel box, the thin-wall steel box is triangular, the longest side of triangle is closed to two sides of main beam tightly, it can improve the buffeting critical wind speed significantly and increase the buffeting stability of separated double-main beam stayd-cable bridge effectively.
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Description

Technical field:

[0001] The patent of the invention relates to the fields of bridge engineering and disaster prevention engineering, in particular to a flutter control air nozzle structure for a cable-stayed bridge installed on a separate double-girder cable-stayed bridge. Background technique:

[0002] Separate double main girders are widely used in medium and small span cable-stayed bridges, and there are also application examples in long-span cable-stayed bridges. Due to the passivation of the aerodynamic shape, the flutter stability of the separated double main girder is not ideal. When the flutter stability requirements at the bridge site are relatively high, certain flutter control measures must be taken to increase the critical wind speed of flutter, but the existing flutter control measures often cannot meet the design requirements. Invention content:

[0003] The object of the present invention is to provide an improved tuyere structure for flutter control of cab...

Claims

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