Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Combined broadband sound barrier for expressway
The invention discloses a combined broadband sound barrier for an expressway. The combined broadband sound barrier comprises a main screen body and an inclined sound absorption composite board arranged at the top of the main screen body, the main screen body comprises a diffuser composite structure plate, a transparent sound insulation composite plate and a multi-cone composite structure plate which are connected with one another from bottom to top; the multi-cone-shaped composite structure plate comprises an interlayer and a first sound absorption plate arranged in the interlayer, the interlayer is composed of a sound absorption metal plate and a sound insulation plate, the plate face of the sound absorption metal plate is composed of multiple cone-shaped protrusions, each cone-shaped protrusion is composed of an inclined plate and a lower right-angle plate connected with the inclined plate, and sound absorption micropores are formed in the lower right-angle plates. The diffuser composite structure plate comprises a secondary remainder diffuser and a micro-perforated plate covering the surface of the secondary remainder diffuser, and adjacent grooves in the secondary remainder diffuser are separated by rigid thin plates. The problems that an existing sound barrier is narrow in sound absorption frequency band can be solved; the noise reduction effect of the sound barrier on the low-frequency noise part is poor; and the service life of a sound absorption material in the sound barrier is short.
本发明公开了一种高速公路组合式宽频带声屏障，包括主屏体和设置在其顶部的倾斜的吸音复合板；主屏体包括自下而上相互连接的扩散体复合结构板、透明隔声复合板和多重锥形复合结构板；多重锥形复合结构板包括夹层及其设置在夹层内的第一吸音板，夹层由吸声金属板和隔声板构成，吸声金属板的板面形状由多重锥形凸起构成，每个锥形凸起由斜板和与斜板相连的下直角板构成，下直角板设有吸音微孔。扩散体复合结构板包括二次余数扩散体和覆盖在二次余数扩散体表面的微穿孔板，二次余数扩散体上相邻凹槽由刚性薄板隔开。本发明可以解决现有声屏障吸声频带较窄；声屏障对于噪声低频部分降噪效果不佳和声屏障内吸声材料使用寿命不长的问题。
Combined broadband sound barrier for expressway
The invention discloses a combined broadband sound barrier for an expressway. The combined broadband sound barrier comprises a main screen body and an inclined sound absorption composite board arranged at the top of the main screen body, the main screen body comprises a diffuser composite structure plate, a transparent sound insulation composite plate and a multi-cone composite structure plate which are connected with one another from bottom to top; the multi-cone-shaped composite structure plate comprises an interlayer and a first sound absorption plate arranged in the interlayer, the interlayer is composed of a sound absorption metal plate and a sound insulation plate, the plate face of the sound absorption metal plate is composed of multiple cone-shaped protrusions, each cone-shaped protrusion is composed of an inclined plate and a lower right-angle plate connected with the inclined plate, and sound absorption micropores are formed in the lower right-angle plates. The diffuser composite structure plate comprises a secondary remainder diffuser and a micro-perforated plate covering the surface of the secondary remainder diffuser, and adjacent grooves in the secondary remainder diffuser are separated by rigid thin plates. The problems that an existing sound barrier is narrow in sound absorption frequency band can be solved; the noise reduction effect of the sound barrier on the low-frequency noise part is poor; and the service life of a sound absorption material in the sound barrier is short.
本发明公开了一种高速公路组合式宽频带声屏障，包括主屏体和设置在其顶部的倾斜的吸音复合板；主屏体包括自下而上相互连接的扩散体复合结构板、透明隔声复合板和多重锥形复合结构板；多重锥形复合结构板包括夹层及其设置在夹层内的第一吸音板，夹层由吸声金属板和隔声板构成，吸声金属板的板面形状由多重锥形凸起构成，每个锥形凸起由斜板和与斜板相连的下直角板构成，下直角板设有吸音微孔。扩散体复合结构板包括二次余数扩散体和覆盖在二次余数扩散体表面的微穿孔板，二次余数扩散体上相邻凹槽由刚性薄板隔开。本发明可以解决现有声屏障吸声频带较窄；声屏障对于噪声低频部分降噪效果不佳和声屏障内吸声材料使用寿命不长的问题。
Combined broadband sound barrier for expressway
高速公路组合式宽频带声屏障
CUI HONGJUN (Autor:in) / SUN SHENGQIANG (Autor:in) / YAO SHENG (Autor:in) / ZHU MINQING (Autor:in) / WANG LIN (Autor:in) / REN ZE (Autor:in) / LI GUANGYU (Autor:in) / SONG DASHENG (Autor:in) / QIAO XIAOLONG (Autor:in) / LIN XIANGNAN (Autor:in)
28.02.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
Expressway sound insulation barrier installation construction method
| Europäisches Patentamt | 2020