MULTI-MATERIAL COMPOSITE ROLLING SEISMIC ISOLATION DEVICE

A multi-material composite rolling seismic isolation device, comprising a first base plate (100) which is a horizontal plate. A rolling portion comprises a first rolling recess (200), steel balls (300) and a second rolling recess (400), wherein arc-shaped recess openings of the first rolling recess (200) and the second rolling recess (400) are arranged in opposite directions, and a rolling space allowing the steel balls (300) to roll therein is formed between the first rolling recess and the second rolling recess; an SMA wire layer (500) is wound around and covers the outside of the first rolling recess (200) and the second rolling recess (400); a second base plate (600) has the same shape as the first base plate (100), and the two are respectively correspondingly fixed to the bottom of the second rolling recess (400) and the top of the first rolling recess (200); rubber pads (700) are fixed between the second base plate (600) and the second rolling recess (400) and between the first base plate (100) and the