Patent ID: 8424252

Claim:
A buckling restrained brace adapted to be connected fixedly between two connecting plates of a framework of a building, said buckling restrained brace comprising: a first axial member extending along an axial direction and having a first middle section and two first coupling sections extending respectively and integrally from two opposite ends of said first middle section, said first middle section having an elongated plate body, each of said first coupling sections having a first supporting plate portion that is coplanar with the elongated plate body of the first middle section and that has an outer end portion formed with a first groove extending along the axial direction, and two first contacting plate portions extending respectively and perpendicularly from two walls of said first supporting plate portion defining respectively two opposite sides of said first groove in opposite directions, so that a distal end of each of said first coupling sections has a cross-section that includes two L-shapes, each of said first coupling sections being made in one piece, said first groove being adapted to permit a respective one of the connecting plates to engage fittingly therewith, said first contacting plate portions of each of said first coupling sections being adapted to be in contact with, connected fixedly to, and parallel to a corresponding one of the connecting plates; and a restraining unit including a surrounding member disposed around said first axial member, and a restraining member disposed between said first axial member and said surrounding member so as to provide a radial restraining force to said first axial member.