Anti-pull double-layer double-pendulum friction pendulum shock-isolation bearing

Abstract

The invention discloses a pullout-resistant double-layer double-pendulum friction pendulum shock-isolation support, which comprises an upper base, a transition base, a lower base, an upper slider, a lower slider, an upper pullout-resistant piece and a lower pullout-resistant piece, and an upper base The first chute is respectively provided on the front side and the rear side of the transition base; the second chute is respectively provided on the front side and the rear side of the transition base; the third chute is provided on the left side and the right side of the transition base; There is a fourth chute on the left side and the right side of the lower base; the upper base, the upper slider and the transition base can have relative friction translation sliding in the left and right direction; the transition base, the lower slider and the lower Relative frictional translational sliding can occur between the two bases in the front-back direction; two upper pull-out parts are respectively arranged on the left and right sides of the upper base and the transition base; two lower pull-out parts are respectively arranged on the transition base and the lower The left and right rear sides of the base. The invention has strong drawing resistance, large deformation capacity, good shock isolation effect, simple structure, convenient manufacture and improved production efficiency.

Description

technical field [0001] The invention relates to the technical field of seismic isolation of civil engineering structures, in particular to an uplift-resistant double-layer double-pendulum friction pendulum isolation bearing. Background technique [0002] Seismic isolation technology is currently the most effective technology for controlling structural damage in the world. Earthquakes occur frequently in my country, and most cities have high earthquake risks. Therefore, seismic isolation buildings are booming in my country. The most critical realization device for a seismically isolated building is the seismically isolated bearing. [0003] At present, there are two main types of vibration isolation bearings, one is rubber vibration isolation bearings, which is mainly composed of rubber and laminated steel plates; the other is friction pendulum vibration isolation bearings, which are divided into Pendulum, double pendulum and compound pendulum construction. Both types of su...

AI Technical Summary

Problems solved by technology

However, the common feature of these two types of bearings is that they cannot resist large tonnage pulling forces.

The number of high-rise buildings in my country is increasing year by year. Under the action of earthquakes, it is difficult for high-rise buildings to avoid tension at the bottom, and the isolation device is difficult to achieve pull-out resistance, which limits the application of this technology in high-rise buildings.

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