Buckling-restrained braces and frames including the same cross-reference to related application

A buckling restrained brace, comprising;

• a casing exhibiting a hollow cross-sectional shape defining an interior region, the casing exhibiting a first length;
• and
• a core disposed in the interior region of the casing, the core exhibiting a second length that is greater than the first length;
• and
• wherein the core is separate from the casing along at least a portion of the first length of the casing and a corresponding portion of the second length of the core by a substantially unoccupied space, and wherein the substantially unoccupied space exhibits a minimum gap distance between the core and the casing that is about 2% to about 49% of at least one outer dimension of the casing.

A buckling restrained brace, comprising:

• a casing exhibiting a hollow cross-sectional shape defining an interior region, the casing exhibiting a first length;
• a core disposed in the interior region of the casing, the core exhibiting a second length that is greater than the first length;
• and
• a plurality of bridge plates that each extend substantially between the core and the casing, each of the plurality of bridge plates define an opening therethrough that corresponds to the cross-sectional shape of the core:
• wherein the core is disposed through the opening;
• wherein the core is separated from the casing by an minimum gap distance along at least a portion of the first length of the casing and a corresponding portion of the second length of the core, the at least a portion of the first length of the casing and the corresponding portion of the second length of the core is between adjacent ones of the plurality of bridge plates.