Special-shaped three-dimensional earthquake isolation supporting base

Abstract

The invention discloses a special-shaped three-dimensional earthquake isolation supporting base. The special-shaped three-dimensional earthquake isolation supporting base is arranged between an upper-part structure and a lower-part structure which need earthquake isolation, and comprises a bottom board, at least two special-shaped supporting base bodies, upper-part connecting corner blocks, lower-part connecting corner blocks, a horizontal supporting base and a sliding face board; the bottom board is connected with a lower-part structure; the special-shaped supporting base bodies are composedof first elastic blocks clamped by upper sealing boards and lower sealing boards in parallel with one another; the upper-part connecting corner blocks and the lower-part connecting corner blocks are provided with horizontal bottom surfaces and oblique top surfaces, and when the upper-part connecting corner blocks are arranged invertedly and the lower-part connecting corner blocks are overlaid withthe upper-part connecting corner blocks, the bottom surfaces are parallel; the horizontal supporting base is composed of a second elastic block clamped by an upper board and a lower board; after theupper-part connecting corner blocks are arranged invertedly and sequentially connected with the special-shaped supporting base bodies and the lower-part connecting corner blocks, the upper-part connecting corner blocks are fixedly supported on the bottom board in a central symmetrically distributed mode, and the sliding face board is fixed to the bottom surfaces of the upper-part connecting cornerblocks; and the horizontal supporting base is supported on the sliding face board in a mode capable of rotating round a central symmetric line, the contact surface of the horizontal supporting base and the sliding face plate adopts a friction material, and the upper board of the horizontal supporting base is connected with an upper-part structure. The special-shaped three-dimensional earthquake isolation supporting base can be synchronously isolate horizontal and vertical earthquake, and can be used for vertical earthquake isolation of buildings with comparatively large self-weight.

Description

Technical field [0001] The present invention relates to the technical fields of environmental vibration and earthquake resistance and damping, in particular to a special-shaped three-dimensional seismic isolation support, which can be used for damping / vibration of ordinary buildings, special structures, bridges, and mechanical equipment. Background technique [0002] The foundation isolation technology of building structures has achieved remarkable research results. However, domestic and foreign research results show that the commonly used seismic isolation elements can only isolate horizontal earthquakes, and have no isolation effect on vertical earthquakes. In high-intensity areas where the vertical seismic action is relatively large, the vertical seismic action may become the main controlling factor for structural response. Furthermore, for some important equipment and buildings, such as nuclear power structures, vertical earthquakes will bring great hidden dangers to their s...

AI Technical Summary

Problems solved by technology

One type is to use air springs and hydraulic oil for vertical vibration isolation, but the performance of this isolation support is not stable enough

The other type is a combined seismic isolation bearing that converts the vertical deformation into the horizontal displacement of the bearing. Although the performance is relatively stable, the size is large and the manufacturing cost is high. The large shear deformation of the isolation bearing will affect the isolation effect of the isolation bearing under the earthquake, and cannot effectively solve the problem of performance matching between the bearing capacity and deformation capacity of the isolation bearing

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