Load-shedding sound barrier unit board

Abstract

The invention relates to a load reducing type sound barrier unit plate. The load reducing type sound barrier unit plate comprises a unit plate body (2) and lap joint parts (1), wherein the lap joint parts (1) are arranged at the two ends of the unit plate body (2) respectively and used for the mutual lap joint of the upper and lower adjacent load reducing type sound barrier unit plates. Because a gap exists between the upper and lower lap joint load reducing type sound barrier unit plates, and airflow on the road surface can penetrate a sound barrier to enter into the exterior of the road surface and play a role in pressure relieving on the road surface; the load reducing type sound barrier unit plate is provided with sound transmission holes and through holes, a part of sound waves and the airflow which enter into the interior of the unit plate is obstructed, weakened and absorbed by sound absorption lining parts, and the other part of the sound waves and the airflow which enter into the interior of the unit plate penetrates the sound transmission holes and the through holes and are discharged to the other side of the sound barrier. The load reducing type sound barrier unit plate has the advantages of not only effectively reducing noise, but also reducing airflow pressure on the road surface, reducing the pressure difference between the two sides of the sound barrier, effectively reducing the affect of the airflow on vehicles on the road surface, reducing the damage to the sound barrier, and prolonging the service life of the sound barrier.

Description

Technical field [0001] The invention relates to a pavement supporting facility, in particular to a load-reducing type sound barrier unit board used to form a sound barrier. Background technique [0002] The existing sound barrier includes a vertical column and a plate-shaped sound insulation element located between the columns. The plate-shaped sound insulation element includes a plate shell and a sound insulation lining inside the plate shell. The plate shell includes a sound-absorbing panel, The sound board and the side panel connecting the sound absorption board and the sound insulation board, the sound absorption board is provided with sound through holes, the sound absorption board can adopt a flat structure or a curved structure, when the sound absorption board adopts a curved structure, the curved structure part generally adopts It is fixed by welding, riveting or screwing to form an acoustic panel. The above structures generally contain a back plate for sound isolation. ...

AI Technical Summary

Problems solved by technology

The above-mentioned structures generally contain a backboard that acts as sound isolation. When a high-speed train passes or there is a typhoon, the wind speed or natural wind brought by the train directly acts on the sound barrier, which is blocked by the sound barrier and then reflected back, forming a sound barrier on the road. Convective mediation wind not only poses a serious threat to driving safety, but also causes damage and fall of the sound barrier, further affecting driving safety

Images