A wind barrier for bridges that can be opened and closed automatically

Abstract

The invention discloses a bridge wind barrier capable of being automatically opened and closed. The bridge wind barrier comprises a plurality of bases, a stand column is arranged on each base, and a plurality of parallel wind barrier strips are further arranged between every two adjacent stand columns. A connecting rod used for connecting every two adjacent stand columns is arranged below each wind barrier strip correspondingly. The bridge wind barrier further comprises wind barrier strip clamping mechanisms which are arranged on the wind barrier strips in a one-to-one correspondence mode. The bridge wind barrier further comprises clamping plate opening and closing control mechanisms which are arranged on the wind barrier strips in a one-to-one correspondence mode. The bridge wind barrier can be automatically opened and closed along with the wind force, the running safety of automobiles influenced by bridge crosswind is improved, and increasing of lateral horizontal thrust on a bridge under strong wind conditions is reduced.

Description

technical field [0001] The invention belongs to the technical field of bridges, in particular to a wind barrier for bridges that can be opened and closed automatically. Background technique [0002] For the consideration of driving safety, the "Code for Wind Resistance Design of Highway Bridges" puts forward restrictions on the driving wind speed of the bridge deck. For bridge sites with relatively harsh crosswind environments, in order to ensure the safety of vehicles driving under the influence of crosswinds, a common method is to set up wind barriers on both sides of the bridge. However, the installation of wind barriers also increases the lateral horizontal thrust of the main body of the bridge, especially for bridges with high girders and high pier columns, it is difficult to meet the structural crack width at the bottom of the pier columns due to the durability requirements, so it is necessary to increase the configuration. There are some wind barrier structures that ...

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Problems solved by technology

However, the installation of wind barriers also increases the lateral horizontal thrust of the main body of the bridge, especially for bridges with high girders and high pier columns, it is difficult to meet the structural crack width at the bottom of the pier columns due to the durability requirements, so it is necessary to increase the configuration. There are some wind barrier structures that can be opened in strong wind weather, most of which are realized by electric drive mechanical devices, but in strong wind weather, the power supply on the bridge cannot be guaranteed, so it cannot Ensure the reliability of the wind barrier opening; at the same time, the high humidity, high salt and dry-wet cycle environment at sea can easily lead to corrosion of mechanical parts and failure

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