A bridge railing structure with adjustable ventilation rate

A technology of ventilation rate and railing, applied in bridges, bridge construction, bridge parts, etc., to improve flutter stability, ensure driving comfort and safety, and have a wide range of applications.

Active Publication Date: 2022-04-22
TONGJI UNIV
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  • Abstract
  • Description
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Problems solved by technology

None of these adjustments can be achieved with passive aerodynamic measures

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  • A bridge railing structure with adjustable ventilation rate
  • A bridge railing structure with adjustable ventilation rate
  • A bridge railing structure with adjustable ventilation rate

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[0038] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] Such as Figure 2-Figure 5 As shown, a bridge railing structure 1 with adjustable ventilation rate includes at least two columns 10, at least one first driving mechanism and at least one second driving mechanism are arranged on the columns 10, and railings are arranged between adjacent columns 10 Component 12, the railing assemb...

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Abstract

The invention discloses a bridge railing structure with adjustable ventilation rate, which comprises at least two uprights, at least one first driving mechanism and at least one second driving mechanism are arranged on the uprights, a railing assembly is arranged between adjacent uprights, and the railing The assembly includes a plurality of railing plates connected in the vertical direction, the first driving mechanism can drive the plurality of railing plates to rotate around the horizontal direction, and the second driving mechanism can drive the multiple railing plates to move in the vertical direction. The invention can realize the continuous adjustment of the ventilation rate based on the adjustment of the inclination angle of the railing panels, can control the ventilation rate of the railing structure more accurately, can raise all the railing panels to the top, and can dynamically adjust the aerodynamic performance of the bridge without adjusting the cross-sectional form of the bridge , can use targeted railing shapes to suppress and eliminate vibration forms such as vortex vibration and flutter; can achieve the optimal wind-induced vibration control effect and economical application effect without increasing other auxiliary facilities of the bridge.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a bridge railing structure with adjustable ventilation rate. Background technique [0002] With the increase of bridge span, the wind-induced vibration of bridge has gradually become one of the factors that must be considered for long-span bridges. The main vibration forms of wind-induced vibration are mainly divided into flutter, eddy vibration and buffeting. Flutter is a main aeroelastic instability phenomenon of bridges. It is a torsional divergent vibration or a combined flexural torsion coupled divergent vibration that occurs under high wind speeds. Once it occurs, it will cause catastrophic damage to the bridge structure. Vortex vibration is a kind of wind-induced vibration phenomenon that is easy to occur in long-span bridges under low wind speed. However, since the vibration of the structure will form a certain feedback effect on the vortex shedding at this tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/10
CPCE01D19/103
Inventor 徐胜乙方根深赵林葛耀君
Owner TONGJI UNIV
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