Pulling pressing beam-falling-resisting seismic-isolation-and-reduction support

Abstract

The invention belongs to the technical field of bridge supports and discloses a pulling pressing beam-falling-resisting seismic-isolation-and-reduction support. According to the technical scheme, the structure of the support comprises an upper base plate, a bottom plate and a sliding part clamped between the upper base plate and the bottom plate. The bottom plate is composed of a concave ball / a cylindrical surface body. The sliding part is composed of a rotating body and a hyperbolic ball / a cylindrical surface body. A periphery circle concave-convex structure is placed between the upper portion of the rotating body and the upper base plate and forms a sliding anti-pulling structure with a plane sliding pair. The lower portion of the rotating body is of a curve ball / cylindrical surface structure. The hyperbolic ball / the cylindrical surface body is clamped between the rotating body and the bottom plate and forms a corresponding curve surface sliding pair through the rotating body and the bottom plate. An anti-pulling sliding pair mechanism is arranged between the rotating body and the bottom face of the bottom plate. When the support of the structure is under the effect of vertical pulling force, collision of parts of the support is avoided. During an earthquake, a seismic-isolation-and-reduction function is achieved, and a bridge, the support and a pier are kept together all the time.

Description

technical field [0001] The invention belongs to the technical field of bridge supports, and in particular relates to a tension-compression anti-drop beam shock-absorbing and isolation support. Background technique [0002] The support is an important part connecting the bridge and the pier. In addition to bearing the vertical pressure of the bridge, in order to meet the vertical tension demand during the normal operation of the bridge, some supports also need to have a tensile function. In order to meet the requirements of the corner of the support, the tensile support currently used must have a certain gap at the tensile structure. When the support is pulled, the support is prone to the phenomenon that the tensile structure first hits and then is pulled, resulting in the tension of the tensile structure. fragile. [0003] In addition, our country is an earthquake-prone area, and the country has a long history of research on bridge anti-seismic and shock-absorbing systems. ...

AI Technical Summary

Problems solved by technology

However, such a method leads to a huge structure, increased costs, and the transformation from a shock-absorbing system to an anti-seismic system, which will eventually cause damage to the bridge piers, and in severe cases lead to the collapse of the entire bridge

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