Vertical seismic isolation device and shock isolation and installation method thereof

Abstract

The invention relates to a vertical seismic isolation device and a seismic isolation and installation method thereof. The device comprises a bottom basin, a pier column, a first elastic supporting mechanism and a second elastic supporting mechanism. A hollow inner cavity is formed in the bottom basin, the pier column is arranged in the center of the bottom basin, one part of the pier column is arranged in the hollow inner cavity of the bottom basin, the other part of the pier column upwards extends out of the bottom basin, the first elastic supporting mechanism is vertically arranged between the pier column and the bottom of the bottom basin and used for supporting the pier column and absorbing vertical kinetic energy of the pier column, and the second elastic supporting mechanism is arranged between the outer wall of the pier column and the inner wall of the bottom basin in the horizontal direction and used for providing symmetrical interface friction bearing capacity for the outer wall of the pier column. The vertical seismic isolation device can effectively control the upper limit value of the vertical seismic action, and is simple in structure, clear in force transmission, lowin manufacturing cost, prefabricated in a factory, convenient to assemble on site and suitable for building structures in areas with large vertical seismic action.

Description

technical field [0001] The invention relates to a vertical shock-isolation device and a shock-isolation and installation method thereof, belonging to the technical field of building structure shock-isolation. Background technique [0002] Building isolation technology is to install an isolation layer with overall reset function composed of isolation devices, damping devices and other components between the foundation or lower part of the building and the upper structure, so as to prolong the natural vibration period of the entire structural system and reduce the input of the upper part. The horizontal seismic action of the structure meets the expected seismic requirements. [0003] The traditional seismic isolation technology generally pays attention to the horizontal seismic action and ignores the vertical seismic action. At present, the commonly used seismic isolation components can only isolate the horizontal seismic action, which is suitable for those that are not sensit...

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Problems solved by technology

In actual engineering, it is very difficult for the seismic isolation layer of the building foundation to provide effective vertical support for the superstructure while reducing the vertical stiffness. At present, there is no vertical seismic isolation device that can effectively isolate the vertical seismic action.

The existing three-dimensional seismic isolation bearings are mainly horizontal rubber isolation bearings connected in series with disc springs, which have complex structures, high costs, complex construction and assembly, and unsatisfactory vertical isolation effects

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