Folding windbreak structure

Abstract

The invention discloses a folding windbreak structure. The folding windbreak structure comprises a windbreak support and a plurality of windbreak strips erected on the windbreak support, wherein each windbreak strip is formed by a plurality of sequentially connected windbreak strip units which can be unfolded or folded; the windbreak support is a windbreak pillar or a fixing device of the windbreak; and a longitudinally-foldable corrugated windbreak strip unit, a folded plate-type windbreak strip unit or an X-shaped windbreak strip unit can be adopted as the windbreak strip unit. The folding windbreak structure disclosed by the invention is simple and practical, and can meet the bridge windbreak requirements of the displaced girder segment and improve the safety of the traffic on the bridge deck; when being used, the windbreak strips can be correspondingly folded or unfolded according to girder segment displacement, so that the windbreak structure well adapts to girder segment displacement; when the longitudinal displacement of the windbreak support along with the main girder occurs, the windbreak strips can be longitudinally elongated and shortened, so that windbreak effects can be achieved all the time; and the folding structure allows the windbreak area of the windbreak strips to be adjusted within a certain range.

Description

Technical field [0001] The invention belongs to the field of bridge engineering, and relates to a folding wind barrier structure. Background technique [0002] At present, among the bridges adopting wind barrier structures at home and abroad, the wind barrier structure is mostly set on the continuous beam section of the main bridge or approach bridge. However, for the beam section with longitudinal displacement, such as the beam section where the expansion joint is located, the traditional form of fixed The barriers cannot meet the needs of telescopic displacement, so there is no wind barrier structure. The same situation also has the beam section near the bridge tower. Because the beam section generally reduces the cross-sectional 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 is connected to the nearby beam section. The distance between them also changes with...

AI Technical Summary

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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