A biomimetic deformable wind barrier for bridge structures and bridge traffic against wind

A bridge structure and wind barrier technology, applied in construction, protective equipment, etc., can solve problems such as difficulty and complicated changes in bridge flow field, achieve simple flow field, ensure optimal operating wind environment, and ensure safety and comfort. Effect

Inactive Publication Date: 2021-05-04
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex coupling between ventilation rate and shape, the flow field changes in the bridge itself and behind the wind barrier are very complicated
Therefore, it is very difficult to realize the optimal control of bridge structure and traffic safety through the existing passive deformable wind barrier.

Method used

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  • A biomimetic deformable wind barrier for bridge structures and bridge traffic against wind
  • A biomimetic deformable wind barrier for bridge structures and bridge traffic against wind
  • A biomimetic deformable wind barrier for bridge structures and bridge traffic against wind

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Embodiment Construction

[0027] 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.

[0028] 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 present invention provides a bionic deformable wind barrier for bridge structures and vehicles on the bridge to resist wind, comprising: a base, a flexible skeleton, a flexible panel and a rigid tip; the lower end of the flexible skeleton is connected to the base, and the upper end is connected to the base The rigid tip is connected; the flexible panel is wrapped on the outside of the flexible skeleton; the flexible panel is provided with ventilation pipes running through the left and right side walls of the flexible panel. Under the action of side wind, the wind barrier provided by the present invention passively deflects to the leeward side, thereby changing the aerodynamic shape of itself and the bridge structure, thereby realizing flow diversion and improving the safety of the bridge; During the process, the ventilation rate of the wind barrier has always maintained the optimal ventilation rate, thereby ensuring the safety and comfort of driving under different wind speeds. Therefore, the wind barrier provided by the present invention can simultaneously ensure the safety of the bridge structure and the traffic on the bridge under the action of strong crosswind.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a bionic deformable wind barrier used for bridge structures and vehicles on the bridge to resist wind. Background technique [0002] With the continuous development and improvement of my country's highway and railway transportation network, the number of bridges built in strong wind areas has continued to increase. Under the action of strong wind, the bridge itself may experience wind-induced vibrations such as flutter that leads to structural damage, vortex-induced vibration and buffeting that endanger driving safety. In addition, strong crosswinds may pose a great threat to the safety of driving on the bridge. Strong crosswinds may cause safety accidents such as skids and rolls of cars running on the bridge and derailment and overturning of trains. Therefore, it is necessary to take effective measures to ensure the safety of the bridge structure and the traffic on the bridge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01F7/02
CPCE01F7/025
Inventor 魏晓军伍浩何旭辉王子龙
Owner CENT SOUTH UNIV
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