A combined bridge anti-seismic and noise-reducing bearing

Abstract

The invention discloses a combined bridge vibration-resistance and noise-reduction support, and relates to the technical field of bridges. The combined bridge vibration-resistance and noise-reductionbearing comprises a pier, wherein a bridge body is placed above the pier; a first vibration resistance mechanism is fixedly connected with an upper surface of the pier; a second vibration resistance mechanism is fixedly connected with the upper surface of the first vibration resistance mechanism; two symmetrical supporting mechanisms are fixedly connected with the upper surface of the pier; and the two symmetrical supporting mechanisms are respectively located on two sides of the first vibration resistance mechanism. According to the combined bridge vibration-resistance and noise-reduction bearing, an intermediate seat is provided so that two movable rods can be moved up and down when a bridge vibrates under action of the movable rod and a first spring, thereby forcing the first spring tobe contacted to slow down impact force applied to the bridge; and a supporting rod is provided, so that a second spring can be forced to be pulled when the bridge body vibrates under action of a sliderail, a second slider block and a universal ball; and elastic force of the second spring for resisting deformation can effectively resist external vibration force applied to the bridge body.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a combined bridge anti-seismic and noise-reducing bearing. Background technique [0002] A bridge is generally composed of a superstructure, a substructure, a support and ancillary structures. The superstructure is also called a bridge span structure, which is the main structure for crossing obstacles. The substructure includes abutments, piers and foundations. [0003] During the construction of existing bridges, in order to slow down the vibration force brought by the vehicles above the bridge, anti-seismic bearings are generally placed between the bridge pier and the bridge to slow down the vibration force, but the vibration isolation effect of this device is poor, and the rubber pad generally requires Frequent replacement will greatly increase the manpower. Therefore, we propose a combined bridge anti-seismic and noise-reducing bearing to solve this problem. Contents of the...

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Problems solved by technology

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art, providing a combined bridge anti-seismic noise reduction bearing, which has the advantage of good anti-seismic effect, and solves the problem of poor anti-seismic effect of the existing bridge anti-seismic bearings

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