Wall corner component with self-centering energy dissipation, assembled shear wall, and construction method

A wall corner component with self-centering energy dissipation, comprising an upper connector, a middle connector, a lower connector and a foamed aluminum block, wherein the upper connector is connected to the middle connector through an energy dissipation steel bar, the energy dissipation steel bar includes first anchoring sections and an energy dissipation section, the first anchoring sections are set at both ends of the energy dissipation section, the first anchoring section is a cylindrical structure with a thread, and the energy dissipation section is an hourglass structure;

• wherein the middle connector is connected to the lower connector through a shape memory alloy bar, the shape memory alloy bar is dumbbell-shaped, comprising second anchoring sections and a deformation section, the second anchoring sections are set at both ends of the deformation section, and the second anchoring section is provided with a thread connected to a nut;
• a middle part of the lower connector is provided with a first limit hole, and the foamed aluminum block is set in the first limit hole, a bottom of the foamed aluminum block is connected to a bottom of the lower connector, a top of the foamed aluminum block runs through the first limit hole and attaches a lower side of the middle connector;
• wherein the upper connector is a T-shaped structure, comprising a first flange plate set horizontally at a top and a first web vertically connected to a lower side of the first flange plate, multiple first connecting holes are provided on the first flange plate, and multiple first connecting holes are evenly distributed on both sides of the first web, multiple second limit holes are provided on the first web, and a middle part of the energy dissipation steel bar is set inside the second limit hole;
• wherein the middle connector is a U-shaped structure, comprising a second flange plate set horizontally at the bottom and a second web vertically connected to the upper side of the second flange plate, a middle part of the second flange plate is provided with a limit slot, and two sides of the limit slot are connected to the shape memory alloy bar, a second connecting hole is connected to a middle part of the U-shaped structure and attaches the limit slot, a second web is provided with a third limit hole corresponding to the second limit hole, and two ends of the energy dissipation steel bar are connected to nuts through the third limit hole;
• wherein the lower connector comprises a third flange plate and a fourth flange plate, the third flange plate and the fourth flange plate are arranged in parallel vertically, a middle of the third flange plate is provided with a first limit hole, and the two sides of the first limit hole are provided with third connecting holes connected to the shape memory alloy bar, multiple stiffening plates are set between the third flange plate and the fourth flange plate, multiple fourth connecting holes are set on the fourth flange plate, and the fourth connecting holes are set alternately with the stiffening plates.