A vibration and noise reduction device for highway bridges

Abstract

The embodiment of the invention discloses a highway bridge damping and noise reduction device. The invention belongs to the technical field of traffic facilities, the device comprises two oppositely-arranged cross beams and racks arranged on the cross beams. The racks on the two cross beams are inserted in a staggered manner; silencing seams are formed between the racks, a silencing cavity is formed below the silencing seam; the device further comprises an opening mechanism, a sound absorption plate, a buffer mechanism, a containing cavity and a rubber pad which are arranged in the silencing cavity. The upper end of the opening mechanism is fixedly connected with the lower end of the rack, the containing cavity is formed in the inner wall of the cross beam, the rubber pad is arranged in the containing cavity and extends outwards into the middle of the silencing cavity, the sound absorption plate is fixed to the inner wall of the cross beam and arranged below the rubber pad, and the buffering mechanism is arranged on the lower portion of the silencing cavity and downwardly penetrates through the rubber pad. The highway bridge expansion joint is ingenious in structural design, damping and noise reduction of the highway bridge expansion joint are achieved through cooperation of the opening mechanism, the buffering mechanism and a cross beam sliding mechanism, and the using effectof the bridge expansion joint is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of traffic facilities, and in particular to a vibration and noise reduction device for highway bridges. Background technique [0002] Highway is an important facility of the country, and it is also an indispensable transportation infrastructure for everyone to travel. With the continuous development of economy and society, people's requirements for road travel are also increasing. [0003] Bridges are an important part of highways, and bridge expansion joints play a good role in connection. Specifically, in order to meet the deformation requirements of the bridge deck, expansion joints are usually set between the two girder ends, between the girder end and the abutment, or at the hinge position of the bridge. In use, the expansion joints are required to be free to expand and contract in two directions parallel to and perpendicular to the bridge axis, firm and reliable, and the vehicle...

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Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides a vibration and noise reduction device for highway bridges to solve the problems in the prior art that the structure of expansion joints of highway bridges is simple and the effect of vibration and noise reduction is poor.

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