Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a steel bridge noise reduction device and belongs to the technical field of rail traffic vibration and noise control and the field of civil engineering. The steel bridge noise reduction device is suitable for steel truss beams, steel plate beams, straight web steel box beams and flat steel box stiffening beams and used for reducing the structural vibration of a steel bridge, and thus the structural radiation noise of the steel bridge is further lowered. The steel bridge noise reduction device comprises a damping layer, a restraint layer and a fixing device, a damping and restraint layer device formed by the damping layer and the restraint layer is a basic noise reduction device, and the restraint function on the structural noise of the steel bridge can be achieved through the matching of the thicknesses of the layers. When the damping layer and the restraint layer are installed on bridges of different types, the corresponding fixing device is adopted according to situations, the tight fit of the restraint layer, the damping layer and a plate piece of the steel bridge under the action of the traffic dynamic loads and the environment can be ensured, the work stability is improved, and the service life is prolonged. When the steel bridge bears the dynamic loads, the caused vibration of the plate piece of the steel bridge is dissipated by the restraint layer and the damping layer, the vibration speed of the surface of the steel bridge is greatly lowered, and thus the structural noise radiated outside by the steel bridge is lowered.
The invention discloses a steel bridge noise reduction device and belongs to the technical field of rail traffic vibration and noise control and the field of civil engineering. The steel bridge noise reduction device is suitable for steel truss beams, steel plate beams, straight web steel box beams and flat steel box stiffening beams and used for reducing the structural vibration of a steel bridge, and thus the structural radiation noise of the steel bridge is further lowered. The steel bridge noise reduction device comprises a damping layer, a restraint layer and a fixing device, a damping and restraint layer device formed by the damping layer and the restraint layer is a basic noise reduction device, and the restraint function on the structural noise of the steel bridge can be achieved through the matching of the thicknesses of the layers. When the damping layer and the restraint layer are installed on bridges of different types, the corresponding fixing device is adopted according to situations, the tight fit of the restraint layer, the damping layer and a plate piece of the steel bridge under the action of the traffic dynamic loads and the environment can be ensured, the work stability is improved, and the service life is prolonged. When the steel bridge bears the dynamic loads, the caused vibration of the plate piece of the steel bridge is dissipated by the restraint layer and the damping layer, the vibration speed of the surface of the steel bridge is greatly lowered, and thus the structural noise radiated outside by the steel bridge is lowered.
Road and bridge noise reduction device and noise reduction method
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024