Large-tonnage inerter type double-order self-resetting damper with variable apparent mass

The invention belongs to the technical field of civil engineering earthquake resistance, and discloses an apparent mass variable large-tonnage inerter type double-order self-resetting damper which comprises a connecting end, an apparent mass variable flywheel, a ball nut, a ball screw, a thrust bearing, two sets of multi-layer annular springs, an inner rod, two sets of steel base plates, two sets of fastening nuts and an outer sleeve. The variable apparent mass flywheel is composed of a chassis, buffer rubber, a movable sliding block, a sliding groove and a spring. The right end of the ball screw sequentially penetrates through the variable apparent mass flywheel, the ball nut and the thrust bearing and is fixedly connected with the inner rod. The inner rod alternately penetrates through the two sets of multi-layer annular springs, the two sets of steel base plates and the two sets of fastening nuts. The variable inertia capacity coefficient is achieved through the variable apparent mass flywheel, the large-t