Anti-seismic energy dissipater for building structure

The invention relates to the field of anti-seismic structures, and particularly discloses an anti-seismic energy dissipater for a building structure. The anti-seismic energy dissipater comprises an upper connecting plate, a lower connecting plate, a damping inner core and an elastic energy dissipation device; the damping inner core is arranged between the two connecting plates, and a first through hole for the elastic energy dissipation device to penetrate through is formed in the damping inner core; and the elastic energy dissipation device comprises a plurality of anti-seismic pieces, the anti-seismic pieces are arranged in a circular array mode to form annular units, the annular units are concentrically arranged to form concentric ring structures, the anti-seismic pieces between the adjacent annular units are arranged in a staggered mode, the concentric ring structures are vertically arranged, the anti-seismic pieces between the adjacent concentric ring structures are connected through elastic pieces, and the anti-seismic pieces can make contact with the damping inner core for friction. The anti-seismic energy dissipater aims to solve the technical problem of poor anti-seismic effect.