Fixed-type aseismic noise reduction rubber support for rail transit bridge

Abstract

The invention relates to a fixed-type aseismic noise reduction rubber support for a rail transit bridge. The fixed-type aseismic noise reduction rubber support for the rail transit bridge comprises an upper support plate (2), a middle seat plate (8), a lower support plate (16), a rotating spherical plate (9), a dual-spherical crow (10) and a main slidable spherical plate (11), wherein the rotating spherical plate (9) is arranged at the bottom of the middle seat plate (8), the dual-spherical crow (10) is arranged between the rotating spherical plate (9) and the dual-spherical crow (10), the upper spherical surface of the dual-spherical crow (10) is arranged in the concave spherical surface of the rotating spherical plate (9) in a matched manner, the lower spherical surface of the dual-spherical crow (10) is arranged on the concave spherical surface of the main slidable spherical plate (11) in the matched manner, and the convex spherical surface of the main slidable spherical plate (11) is arranged in the concave spherical surface of the lower support plate (16) in the matched manner. The fixed-type aseismic noise reduction rubber support for the rail transit bridge realizes vibration absorption and noise reduction and aseismic energy dissipation functions of the urban rail transit bridge.

Description

technical field [0001] The invention relates to a rubber bearing, more specifically to a fixed anti-seismic and noise-reducing rubber bearing of a rail transit bridge, and belongs to the technical field of bridge vibration reduction and isolation. Background technique [0002] At present, shock isolation and energy consumption shock absorption technologies have gradually attracted the attention of countries all over the world and are widely used in building structures and bridge structures. The most common types of existing bridge isolation systems are natural rubber bearings and lead rubber bearings. Bridge rubber bearings are usually installed between the bridge superstructure, piers and abutments, which can comprehensively reduce the seismic load and reduce the seismic load. Harmful to the bridge structure, they have the dual functions of shock isolation and energy dissipation; at the same time they also support the weight of the upper main structure and also provide elas...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing bridge anti-seismic rubber bearing has no obvious shock-absorbing and isolation function or the pollution is relatively serious, or the rail transit bridge vibration-reducing and noise-reducing device has no effective protection for the large-scale horizontal displacement of the beam caused by the additional horizontal load. Measures and other defects, providing a fixed anti-seismic and noise-reducing rubber bearing for rail transit bridges

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