Hatching indicates the extent of the protected zone typical at the beam-column and brace connections of a buckling-restrained braced frame. The protected zone includes the core of the brace and extends a distance of three inches typically from the connection interfaces. Bolted gusset plates connect the braces to the structural steel framing elements. These protected zones designate critical regions where strict limitations on welding, attachments, and thermal cutting apply to maintain seismic energy dissipation capacity.
HATCHING INDICATES EXTENT OF PROTECTED ZONE TYPICAL TYP 3" PROTECTED ZONE INCLUDES CORE OF BRACE 1 1 1
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