than one inch or the fins can be attached to the surrounding buckling restraining member where the fins are spaced apart from the load bearing member by less than one inch alternately there may be no fins attached to the load bearing member or to the buckling restraining member in such case the load bearing member is substantially surrounded by a buckling restraining member to prevent the load bearing member from buckling the buckling restraining member may be spaced apart from the load bearing member by preferably a distance of less than one inch application_number US 40834306 A description a buckling restrained structural brace assembly brsba 10 is a load bearing member core 12 preferably surrounded by a buckling restraining member shell 14 an embodiment of the present invention resists applied loads primarily in the form of axial tension and compression fig1 illustrates an embodiment of the present invention the buckling restrained structural brace assembly 10 may include a core 12 to which fins 16 are attached by welding or any other suitable method of fastening such as banding riveting bolting or screwing the fins 16 may also be integrally formed with the core 12 this core 12 and fin 16 element will expand when the brsba 10 is subjected to compression the core 12 and fin 16 element are surrounded by a shell 14 in one embodiment this shell 14 preferably substantially surrounds the core 12 and fins 16 without touching the fins 16 the shell 14 will come into contact with the fins 16 upon the core 12 being subjected to compressive load where the shell 14 will prevent.