Shock-insulation supporting base composed of steel board rubber, mild steel and lead and capable of achieving three-stage energy consumption

Abstract

The invention discloses a shock-insulation supporting base composed of lamination steel board rubber, mild steel and lead and capable of achieving three-stage energy consumption, and relates to a novel shock-insulation device. The shock-insulation supporting base aims to resolve the problem of stability of a traditional shock-insulation supporting base under strong shock, and three-stage energy consumption is used for meeting fortification requirements of multifunctional targets of the shock-insulation supporting base. The shock-insulation supporting base is composed of a lamination steel board rubber body, a mild steel support and a lead damper in an orderly assembling mode, and is simple in structure, convenient to manufacture and good in performance. In the first stage, a common shock-insulation function is achieved, and structure response under small and medium earthquakes is lightened; in the second stage, the mild steel support participates in energy consumption, secondary rigidity of the shock-insulation supporting base is improved, comprehensive energy consumption ability is strong, and response in a large earthquake is lightened; in the third stage, the lead damper participates in work to respond to unpredictable earthquake danger exceeding expectation, plays a role in protecting the shock-insulation supporting base, and avoids unstability damage. The shock-insulation supporting base can effectively improve the energy consumption ability and reliability under unpredictable earthquakes.

Description

technical field [0001] The invention relates to a shock-isolation device, in particular to a shock-isolation support capable of realizing multi-performance target fortification, and in particular to a three-stage energy-dissipating shock-isolation support. Background technique [0002] As an important natural disaster, earthquakes are characterized by suddenness and unpredictability. No two earthquake records in history are exactly the same. The strong randomness of earthquakes has brought certain challenges to the seismic fortification of buildings. At present, the seismic codes of our country and many countries in the world are generally formulated according to three fortification levels of small earthquakes, moderate earthquakes, and major earthquakes. The fortification level of a certain area contains clear statistical significance. It is possible to exceed the expected strength. With regard to unexpected earthquake effects, scholars have proposed the concept of giant e...

AI Technical Summary

Problems solved by technology

However, considering that ordinary seismic isolation bearings have certain disadvantages under strong earthquakes, that is, the lateral movement of seismic isolation bearings is too large under strong earthquakes, and the vertical compression area is reduced, which may easily lead to vertical instability. The core laminated steel plate rubber bearing has insufficient energy dissipation capacity, and also lacks a multi-stage energy dissipation and shock absorption mechanism, which cannot meet the multi-performance target fortification currently advocated

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