A three-dimensional seismic isolation device based on four-bar structure

Abstract

The invention discloses a three-dimensional shock isolation device based on a four-bar structure, which includes a piston assembly, a variable-section SMA prestressed cable, a four-bar structure, a bottom plate, an annular air rubber spring, a base and a damping fluid, the base is installed on the bottom plate, and the annular The air rubber spring is installed on the base, the piston assembly is installed on the annular air rubber spring, the variable cross-section SMA prestressed cable is installed in the piston assembly, the damping fluid is contained in the piston assembly, and the four-bar structure connects the piston assembly and the bottom plate. The beneficial effects of the present invention are: when subjected to an earthquake, the piston pusher moves to consume energy, and the variable cross-section SMA prestressed cable and damping fluid can better dissipate the energy generated under a strong earthquake; the four-bar structure moves to cut the magnetic induction The wire generates current to activate the warning device, and at the same time, it can also consume energy through movement.

Description

technical field [0001] The invention relates to the technical field of building shock absorption and isolation, in particular to a three-dimensional shock isolation device based on a four-bar structure. Background technique [0002] The seismic isolation support is a seismic isolation device installed between the building and the foundation to meet the seismic isolation requirements. Seismic isolation bearings are widely used in various buildings to deal with the damage caused by various natural or man-made vibrations to buildings and reduce the impact on human living. [0003] The seismic isolation devices in the middle of the last century were mainly made of rubber and steel plates alternately vulcanized, which could only eliminate or weaken the horizontal component of seismic waves. As people become more aware of seismic waves. In the 1980s, the research on three-dimensional seismic isolation devices began to receive the attention of relevant scholars. Since the early ...

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Problems solved by technology

[0004] In the current design of three-dimensional seismic isolation bearings, most of them have the following deficiencies: 1. When the vertical force of the bearing increases faster, the resistance mechanism of the bearing cannot be changed accordingly; The runtime does not prompt human beings to have an earthquake, so you need to pay attention to safety

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