Novel self-resetting buckling restrained brace

The invention discloses a novel self-resetting buckling restrained brace. The novel self-resetting buckling restrained brace comprises an outer sleeve, wherein an inner sleeve is slidably connected to the inner wall of the outer sleeve, end plates are connected to the inner wall of the inner sleeve and the inner wall of the outer sleeve in a lap joint mode, and a plurality of prestressed tendons are arranged on the surfaces of the two end plates. The outer sleeve, the inner sleeve, the prestressed tendons, a cross-shaped steel core, a square steel pipe and the end plates are arranged, and after an earthquake is over, the large self-restoring force of the prestressed tendons enables the left end plate and the right end plate to be close to each other, so that the outer sleeve which is welded to a first baffle and the inner sleeve which is welded to a first check block move away from each other relatively; and an energy dissipation component is a buckling restrained brace, under the action of tension and compre