US Patent 11499331 Ductile anchor attachment (DAA) mechanism

A ductile anchor attachment (DAA) mechanism is disclosed. Example embodiments are directed to a DAA mechanism having a bottom section configured to connect to an existing anchor; a tapered lower section; a narrowed neck forming a ductile yield mechanism; a tapered upper section; a drilled and untapped top section; and a hollowed interior. Example embodiments are also directed to a DAA mechanism comprising: a headed rebar with a rebar coupler; a rebar segment coupled to the rebar coupler at a first end of the rebar segment; a metal jacket encasing at least a portion of the rebar segment; and a flange connection bracket coupled to the rebar segment at a second end of the rebar segment.