Double-layer multi-dimensional shock isolation/absorption device

Abstract

The invention discloses a double-layer multi-dimensional shock isolation / absorption device which is a multi-dimensional isolation / absorption device applied to shock isolation and absorption of a long-span grid structure, a building structure, a platform structure and the like. The device is formed by overlapping two layers of shock isolation / absorption devices; in each shock isolation / absorption device, a connection steel plate (3) is arranged at the top layer; a viscoelastic core pad (2) is located below the middle part of the connection steel plate (3); the lower part of the viscoelastic core pad (2) is connected with a core pad base plate (4); the lower part of the core pad base plate (4) is connected with a fixed steel plate (5); a middle fixed plate of a viscoelastic plate type damper (1) is connected with the two sides of the connection steel plate (3); and fixed plates at the two sides of the viscoelastic plate type damper (1) are connected with the fixed steel plate (5). The double-layer multi-dimensional shock isolation / absorption device disclosed by the invention has the advantages of simple structure, good energy consumption effect and low manufacturing cost, is convenient to construct, can realize horizontally bidirectional and vertical shock isolation at the same time, and can consume the shock energy while isolating external excitation so as to protect the shock isolation device from being damaged under great external excitation.

Description

technical field [0001] The invention is a multi-dimensional shock-isolation and shock-absorbing device for large-span grid structures, building structures, platform structures, etc., which can isolate and consume multi-dimensional seismic energy. Background technique [0002] Earthquake force and wind vibration force are the main control loads borne by the building structure, and are also the main factors leading to the damage and collapse of the building structure. Accurately understand the force mechanism and dynamic response of the structure under the action of dynamic load, and implement reliable measures for it. Seismic (vibration) protection measures are a frontier research topic. Structural vibration control is a new type of anti-seismic (vibration) method, that is, using shock isolators or shock absorbers to isolate or consume external excitation energy, so as to reduce the damage of external excitation to the main structure. At present, the seismic isolation device...

AI Technical Summary

Problems solved by technology

However, these seismic isolation devices only play the role of isolation in the horizontal direction, but cannot simultaneously isolate the horizontal and vertical directions; while the energy dissipation devices cannot play the role of isolation; at the same time, the existing seismic isolation devices are resistant to pulling Poor capacity, easy to break under strong external excitation, lack of protection measures; existing vibration isolation devices do not have the function of isolating or consuming local vibration bending moment and node vibration bending moment

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