Damping support with pre-bias adjustable and state self-resetting functions

Abstract

The invention provides a damping support with pre-bias adjustable and state self-resetting functions. The damping support comprises a sliding plate connected with an upper structure, a lower seat plate connected with a lower structure and provided with a concave spherical surface, and a spherical sliding block arranged between the sliding plate and the lower seat plate. The upper surface of the spherical sliding block is a plane matched with the sliding plate, and the lower surface of the spherical sliding block is a convex spherical surface matched with the concave spherical surface; relative sliding between the plane of the spherical sliding block and the sliding plate can be achieved, and relative rotation between the convex spherical surface and a concave spherical surface support can be achieved too; and a recovery mechanism and a pre-bias adjusting mechanism are arranged between the sliding plate and the lower seat plate. In addition to a basic seismic isolation and reduction functions, the self-adjustment of the pre-bias of the support in the mounting process can be realized, and more importantly, the self-recovery of the self-state of the support is realized after the support slides or rotates.

Description

technical field [0001] The invention relates to a shock-absorbing support with the functions of adjustable pre-bias and self-resetting of the state, which belongs to the field of bridges and buildings. Background technique [0002] Earthquake is one of the major natural disasters faced by human beings for a long time. It will cause the collapse and destruction of houses and infrastructure, and the blockage and interruption of public transportation, which seriously threatens the safety of human life and property, especially in the Pacific Rim seismic belt and Eurasia. Since the 1980s, my country, which is at the junction of seismic zones, has entered a new period of seismic activity, and the frequency of earthquakes has increased significantly. Therefore, we must take necessary anti-seismic measures to reduce the losses caused by earthquakes. [0003] The shock-absorbing and isolating bearing is a kind of shock-absorbing and isolating device widely used in bridge structures an...

AI Technical Summary

Problems solved by technology

However, with the large-scale application of spherical bearings, it is found that during use, due to the characteristics of the spherical bearings, the spherical bearings used will be displaced during use, especially after earthquakes or overuse. Or deformation, these displacements or deformations generally cannot be completely reset, so that the building cannot return to the normal state after the earthquake or after overuse, seriously affecting the use of the building

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