Bionic deformable wind barrier for wind resistance of bridge structure and bridge crane

Abstract

The invention provides a bionic deformable wind barrier for wind resistance of a bridge structure and a bridge crane. The bionic deformable wind barrier comprises a base, a flexible framework, a flexible panel and a rigid tip. A lower end of the flexible framework is connected with the base, and an upper end of the flexible framework is connected with the rigid tip; the flexible panel wraps an outer part of the flexible framework; and the flexible panel is provided with a ventilation pipe penetrating through a left side wall and a right side wall of the flexible panel. Under action of lateralwind, the wind barrier is passively deflected towards a leeward side so that aerodynamic configuration of the wind barrier and the aerodynamic configuration of a bridge structure are changed, flow guiding is achieved, and safety of a bridge is improved. And in a deformation process of the wind barrier, a ventilation rate of the wind barrier is always kept optimal so that the driving safety and comfort at different wind speeds are ensured. Therefore, the wind barrier provided by the invention can simultaneously guarantee the safety of the bridge structure and driving 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...

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.

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