In Japan, beam-to-column welded connections with scallops have been generally applied in steel structures. In case of this typical joint, the connection have geometrical notch effects and some reduction of the moment capacity in the web is inevitable. Then many types of advanced connection have been proposed since the Hyogoken-nanbu earthquake. In this study, the full scale shaking table tests were performed to investigate the improvement of beam's ultimate seismic resistance by applying the advanced type of joints. It was found that the advanced method improved the efficiency in the transmitting the stress at the section where the maximum stress occurred.
