Exploration and practice of BRB buckling restrained brace construction technology
Steel structure system is widely used in modern architecture,in which bending steel frame system,braced frame structure and double structure system are the most common forms.With the increase of building height,these systems often face the problem of relatively flexible structure,which leads to the structural deformation exceeding the limit of lateral displacement.Buckling-restrained brace(BRB)is a kind of special bracing member,which does not buckle under pressure,but through a special structural design,the core braces can yield under pressure as well as under tension,thus it can absorb a great deal of energy input into the whole system.This kind of supporting member is widely used in building structure,especially in the building with high seismic performance requirements.