Combined energy dissipation assembly type shear wall horizontal connecting device

The invention relates to a combined energy dissipation assembly type shear wall horizontal connecting device which is characterized in that an upper shear wall and a lower shear wall are connected through a buckling-restrained steel bar and a connecting assembly with a friction damper, and the connecting assembly comprises a lower pre-buried connecting steel plate, a friction pair and an upper pre-buried T-shaped connecting steel plate which are sequentially connected in the longitudinal horizontal direction; the upper pre-buried T-shaped connecting steel plate and the lower pre-buried connecting steel plate are connected with the upper and lower limb precast concrete shear wall through anchor bars, and a plurality of screws are arranged on the web overlapping face of the upper pre-buried T-shaped connecting steel plate and the lower pre-buried connecting steel plate. A screw rod sequentially penetrates through the lower pre-embedded connecting steel plate, the friction pair and the upper pre-embedded T-shape