Buckling-restrained brace and method for mounting buckling-restrained brace

A method for mounting a buckling-restrained brace on a structure, the buckling-restrained brace including:

• a core;
• a restrainer encasing the core from an outer side thereof;
• a stiffening member joined to the core in a state where a part of the stiffening member is disposed inside the restrainer;
• and
• a connector having a first end portion that is pin-joined to the structure and a second end portion that is joined to at least one of the core and the stiffening member,
• wherein an elongated hole is provided in at least one of the core, the stiffening member, and the connector as a position adjustment mechanism configured to adjust a relative position between the connector and at least one of the core and the stiffening member,
• the method comprising:
• a position adjusting step of temporarily determining a position of the connector by adjusting a relative position between the connector and at least one of the core and the stiffening member using the position adjustment mechanism;
• an axial force releasing step of releasing an axial force applied from the structure to the buckling-restrained brace by releasing the temporary determination of the position of the connector using the position adjustment mechanism;
• and
• a final joining step of finally joining the connector to at least one of the core and the stiffening member, the final joining step being performed after the axial force releasing step.

A method for mounting a buckling-restrained brace on a structure, the buckling-restrained brace including:

• a core;
• a restrainer encasing the core from an outer side thereof;
• a stiffening member joined to the core in a state where a part of the stiffening member is disposed inside the restrainer;
• and
• a connector having a first end portion that is pin-joined to the structure and a second end portion that is joined to at least one of the core and the stiffening member,
• wherein an elongated hole is provided in at least one of the core, the stiffening member, and the connector as a position adjustment mechanism configured to adjust a relative position between the connector and at least one of the core and the stiffening member,
• the method comprising:
• a pin joining step of pin-joining the connector to the structure;
• and
• a final joining step of finally joining the connector to at least one of the core and the stiffening member,
• wherein after the pin joining step and before the final joining step, an axial force, which is applied from the structure during construction to the buckling-restrained brace, is relieved by adjusting a relative position between the connector and at least one of the core and the stiffening member to freely move in an axial direction of the buckling-restrained brace using the position adjustment mechanism.