THE SEISMIC PERFORMANCE ANALYSIS OF REPLACEABLE INDEPENDENT LINKS

The repair of Eccentrically Braced Steel Frames with replaceable link is convenient and economical compared with traditional Eccentrically Braced Steel Frames, and the research on replaceable link is limited worldwidely. In the paper, finite element analysis was performed for the one-way loading and cycle loading of eight replaceable link beams with different parameters using ABAQUS. Analysis results indicate that the space between ribbed stiffeners has small influence on the bearing capacity of replaceable link beams and the increase of replaceable link beam length causes the decrease of bearing capacity; Under monotonic loading, large displacement ductility coefficients and large angle ductility coefficients of replaceable link beams were obseved, showing good ductility; Under cyclic loading, the hysteresis curves of replaceable links are plumper with no pinch, showing good energy dissipation property.