A rollable wind barrier structure

Abstract

A curlable wind barrier structure comprises wind barrier supports and a plurality of barrier strips erected on the wind barrier supports, wherein a curly part is arranged at one side end of each barrier strip and is formed by curling the end of each barrier strip around the axis, the curly parts are placed on bottom plates, and the bottom plates are fixedly connected with webs of the wind barrier supports; the ends of the curly barrier strips are connected with auxiliary devices to guarantee contraction of the barrier strips of the curly parts, and wind screening area change caused by beam section deflection can be adapted. The structure has the advantages that the structure is simple and practical, the wind screening requirement of deflected beam sections can be met, and the traveling safety of a bridge deck is improved. During usage, the length of the barrier strips can be adjusted along with deflection of the beam sections by the aid of curly force return devices (or memory alloys), so that the barrier strips always exist in a wind screening area, and thus the wind barrier has good adaptability to deflection of the beam sections.

Description

technical field [0001] The invention belongs to the field of bridge engineering and relates to a wind barrier structure, in particular to a rollable wind barrier structure. Background technique [0002] At present, in the bridges with wind barrier structure at home and abroad, the wind barrier structure is mostly set on the continuous beam section of the main bridge or approach bridge, but for the beam section with longitudinal displacement, such as the beam section where the expansion joint is located, the traditional form of fixing Barrier strips cannot meet the needs of expansion and displacement, so no wind barrier structure is set up. The same situation also has the beam section near the bridge tower. Since the beam section generally reduces the section width near the bridge tower, the wind barrier structure arranged on the outside of the beam section has to be disconnected near the bridge tower, and the bridge tower and the nearby beam section The distance between the...

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Problems solved by technology

[0002] At present, in the bridges with wind barrier structure at home and abroad, the wind barrier structure is mostly set on the continuous beam section of the main bridge or approach bridge, but for the beam section with longitudinal displacement, such as the beam section where the expansion joint is located, the traditional form of fixing Barrier strips cannot meet the needs of expansion and displacement, so no wind barrier structure is set up

The same situation also has the beam section near the bridge tower. Since the beam section generally reduces the section width near the bridge tower, the wind barrier structure arranged on the outside of the beam section has to be disconnected near the bridge tower, and the bridge tower and the nearby beam section The distance between them also changes with the longitudinal displacement of the bridge, so there is no windshield structure on both sides of the bridge tower

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