This structural detail indicates the protected zone requirements for a buckling-restrained brace frame assembly. The lateral force-resisting system consists of typical steel columns and beams framing a single bay with a buckling-restrained brace. The diagonal brace features a central steel core surrounded by a buckling-restrained brace casing. The brace connects to typical gusset plates welded at the beam-column intersections. Hatched regions designate the specific protected zones subject to special seismic detailing and welding restrictions.
INDICATES PROTECTED ZONE BEAM, TYP. COLUMN, TYP. GUSSET PL TYP. BRB END CONNECTION TYP. BRB CASING STEEL CORE
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