Opening and closing type sound barrier device capable of actively adjusting wind pressure and used for heavy haul railway

Abstract

The invention relates to an openable and closable sound barrier device capable of actively adjusting wind pressure for a heavy haul railway, and belongs to the field of wind resistance and wind pressure reduction of bridges. Comprising sound barrier supports, sound barrier foundations, H-shaped steel stand columns, electric rotating shafts, steel frames, anemograph wind direction sensors and intelligent switches. The sound barrier support is fixed on a beam flange and a beam web of the heavy haul railway bridge, a sound barrier foundation is arranged on the sound barrier support, and a rectangular steel plate I is arranged on the top surface of the sound barrier foundation; the H-shaped steel stand column is welded to the first rectangular steel plate, and first connecting steel is welded to the center of an inner side web. Second connecting steel is welded to the upper portion of the first connecting steel, and an electric rotating shaft is arranged on the second connecting steel; two steel frames which are oppositely arranged are arranged between the first connecting steel in the two H-shaped steel stand columns, and the steel frames are connected with the first connecting steel through two-way spring hinges; a sound absorption material plate is embedded in the steel frame; the electric rotating shaft is connected with the steel frame through a first horizontal connecting rod, a second vertical connecting rod and a second rectangular steel plate.

Description

technical field [0001] The invention relates to an openable and closable sound barrier device for actively adjusting wind pressure for heavy-duty railways, belonging to the field of bridge wind resistance and wind pressure reduction. Background technique [0002] With the continuous development of the economy, the city has also continued to expand and develop outwards. The original urban suburbs have gradually become residential areas, which has brought about a sharp increase in the number of railways interspersed with urban residential areas. Residents have been living under the noise of high-speed railway trains for a long time, and their lives have been seriously troubled. Therefore, in order to effectively reduce noise and improve people's quality of life and physical and mental health, it is necessary to set up sound barriers along the line sections in residential areas. However, in areas with high wind pressure, when the sound barrier is subjected to long-term wind lo...

AI Technical Summary

Problems solved by technology

However, in areas with high wind pressure, when the sound barrier is subjected to long-term wind loads or relatively large wind loads, its stability and durability will be affected, ranging from affecting normal use and unable to shield noise, to being blown down by the wind and destroying it. Carrying railway tracks, seriously endangering traffic safety

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