load bearing capacity reinforced concrete beams reinforced concrete beams slim floor beams reinforced concrete beams precast concrete beam end seismic damage evaluation reinforced concrete building falling mass bearing capacity of beams reinforced with composite rebar precast concrete beam end 3d printed concrete beams as optimised precast concrete beam end composite columns due to concrete core reinforced concrete beam column joints 3d printed concrete beams as optimised steel beam composite frame structure pseudo static cyclic loading falling mass bearing capacity of 3d printed concrete beams as optimised reinforced concrete beam column joints reinforced concrete beams 3d printed concrete beams as optimised reinforced concrete building 3d printed concrete beams as optimised seismic damage evaluation reinforced concrete building 3d printed concrete beams as optimised bending load carrying capacity seismic damage evaluation precast concrete beam end shear bearing capacity of framework 3d printed concrete beams as optimised bending load carrying capacity reinforced concrete building reinforced concrete building 3d printed concrete beams as optimised precast concrete beam end shear bearing capacity of framework seismic damage evaluation 3d printed concrete beams as optimised reinforced concrete building 3d printed concrete beams as optimised slim floor beams 3d printed concrete beams as optimised seismic damage evaluation reinforced concrete building reinforced concrete building shear bearing capacity of framework reinforced concrete building reinforced concrete beam column joints