Seismic Behaviour of Three New Connections Used for Eccentrically Braced Steel Frames

The eccentrically braced steel frames provide an efficient structural system for resisting seismic action.For meeting the design demand of sufficient capacity to resist moment and dissipate energy,three new reinforced connections,through adding rib,adding side-plate,adding cover-plate between shear links and column,are proposed.This paper provides the analytical results of comparison between the new conneetions and traditional connections.Results indicate that the new conneetions may draw link yield away from column face,preclude yielding in the link in the region adjacent to the column,and have good deformation capacity and sufficient stiffness.