Detachable and replaceable self-resetting variable friction damper

The invention discloses a detachable and replaceable self-resetting variable friction damper which comprises a damper upper end plate and a damper lower end plate. A first energy dissipation piece and four second energy dissipation pieces are arranged between the damper upper end plate and the damper lower end plate, the four second energy dissipation pieces are evenly distributed in the circumferential direction, and the damper can achieve bidirectional limiting of a wall in the transverse direction and the longitudinal direction. 本发明公开了一种可拆卸可更换的自复位变摩擦阻尼器，包括阻尼器上端板及阻尼器下端板；阻尼器上端板与阻尼器下端板之间设置第一耗能件以及四个第二耗能件，四个第二耗能件沿周向均匀分布，该阻尼器能够实现墙体横向、纵向的双向限位。