A two-way rolling pendulum shock-isolation bearing

Abstract

The invention discloses a two-way rolling pendulum shock-isolation support belonging to the field of civil engineering shock-isolation. The shock-isolation support is composed of an upper plate, an upper roller, an upper rolling swing rod, a lower rolling swing rod, a lower roller, a lower plate, an upper arc-shaped track groove and a lower arc-shaped track groove; the lower surface of the upper plate is provided with an upper Arc-shaped track groove with built-in upper roller; the upper surface of the lower plate is provided with a lower arc-shaped track groove with built-in lower roller; the upper roller is laid flat in the upper arc-shaped track groove, and the lower roller is laid flat in the lower arc-shaped track groove Inside, they are all closely arranged along the arc direction; the direction of the upper arc track groove of the upper plate and the direction of the lower arc track groove of the lower plate are orthogonal to each other. There are two forms of arc track groove structure, one is a full-length groove, and the other is a round hole groove. The advantages of the present invention are: when an earthquake occurs, the relative displacement of the upper and lower plates drives the rolling pendulum to swing along the curved surface of the arc-shaped track groove, provides restoring force for the structure, controls structural displacement, reduces structural response, and ensures structural safety.

Description

technical field [0001] The invention belongs to the technical field of civil engineering structures, and in particular relates to a two-way rolling pendulum shock-isolation support. Background technique [0002] In recent years, a large number of scholars have studied the energy dissipation and isolation of structures. Many countries have formulated energy dissipation and isolation specifications. Energy dissipation and isolation have gradually become effective technologies for building structures to reduce earthquake disasters. The seismic isolation system can reduce the horizontal earthquake action by prolonging the natural vibration period of the structure, and effectively reduce the damage of the structure. The base isolation design absorbs the seismic energy through the isolation layer to achieve the purpose that the superstructure still works within the elastic range when the earthquake occurs, and effectively protects the structure. [0003] At present, the common is...

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Problems solved by technology

[0005] 1) The material of the rubber shock-isolation bearing is greatly affected by temperature, it is not suitable for high temperature conditions, and it is difficult to meet the durability requirements of the building

[0006] 2) The friction surface of the friction-type seismic isolation bearing needs special treatment in the process. The long-term stability of the friction surface of the vibration isolation bearing and the fatigue stability of the friction surface are poor, and it is not easy to design and control

[0007] 3) The seismic isolation bearing with damping has the characteristics of providing damping, but the seismic isolation bearing has disadvantages such as complex structure, high cost, and high maintenance cost after the earthquake

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