A　rapid　repair　and　retrofitting　technique　applied　on　reinforced　concrete　(rc)　bridges　damaged　after　a　strong　earthquake,　can　be　a　very　effective　solution　to　guarantee　the　use　of　the　bridge　for　the　emergency　response　in　short　time.　This　repair　intervention　makes　possible　a　proper　plastic　dissipation　distribution　on　the　rebars　in　plastic　hinge　only　and　increases　the　original　insufficient　shear　strength　minimizing　the　intervention　time　and　cost.　In　this　paper,　the　technique　was　applied　on　the　most　damaged　pier　of　an　irregular　rc　bridge　designed　according　to　Chinese　codes　(JTG　D60-2004,　JTG　D62-2004　and　JTG/T　B02-012008)　but　with　insufficient　transversal　steel　reinforcement.　The　rc　pier　repair　operations　consist　in:　substitution　of　the　original　damaged　rebar　parts　by　shaped　rebar;　restoration　of　the　damaged　concrete　parts　by　concrete　with　fibers　in　plastic　hinge　only.　In　particular,　this　research　focuses　on　the　use　of　fiber　concrete　to　increase　the　insufficient　original　shear　strength　and　ductility　of　the　pier.　Compression　and　flexural　tests　on　fiber　concrete　specimens　were　performed　to　determine　the　variation　of　the　concrete　mechanical　properties　with　different　fiber　contents.　Furthermore,　the　shear　strength　of　the　repaired　pier　specimen　was　evaluated　by　CNR-DT　204/2006　formulations　considering　the　contribution　of　the　new　and　of　the　original　concrete　parts.　Finally,　some　pier　specimens　(scale　1:　6)　were　repaired　using　different　concrete　mixture　with　different　fiber　contents　to　prove　the　feasibility　of　the　intervention　in　situ.