Friction pendulum type three-dimensional multi-stage vibration isolation device with inerter

Abstract

The invention relates to the field of earthquake resistance and shock absorption of buildings, in particular to a friction pendulum type three-dimensional multi-stage vibration isolation device with an inerter, which comprises a decoupling system, a horizontal vibration isolation system and a vertical vibration isolation system, the horizontal vibration isolation system is a friction pendulum support mechanism, and the vertical center line of the vertical vibration isolation system and the vertical center line of the friction pendulum support mechanism are kept consistent; the friction pendulum support mechanism is connected with the upper structure; the vertical vibration isolation system is arranged below the friction pendulum support mechanism and connected with a foundation. The inerter vibration isolation system and the friction pendulum support are connected in a decoupling mode to achieve three-dimensional vibration isolation. Effective vertical vibration isolation can be achieved by connecting the spiral spring and the inerter system in parallel, the friction pendulum support can play a role in horizontal vibration isolation, due to the existence of the decoupling system, horizontal vibration isolation and vertical vibration isolation can play roles respectively, and three-dimensional vibration isolation is achieved.

Description

technical field [0001] The invention relates to the field of anti-seismic and shock-absorbing buildings, in particular to a three-dimensional multi-stage vibration isolation device with inertial capacity and friction pendulum. Background technique [0002] my country is an earthquake-prone country. When an earthquake occurs, in order to protect buildings and cultural relics, it is necessary to use seismic isolation bearings. Seismic isolation bearing is the most widely used seismic isolation technology at present. The building is divided into superstructure and substructure, which are respectively connected with the seismic isolation bearing to form a seismic isolation layer, so as to prevent the seismic capacity from directly acting on the building. Superstructure damages the performance of the building. At present, the existing seismic isolation bearings with mature technology include natural rubber bearings, lead-core rubber bearings, and high-damping rubber bearings. Am...

AI Technical Summary

Problems solved by technology

Although modern seismic isolation technology has a history of nearly 60 years, most of the research results at home and abroad show that the commonly used seismic isolation components can only isolate horizontal earthquakes, and have no isolation effect on vertical earthquakes.

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