Abstract
Stud-type dampers that are installed in a limited length of beam span are useful for building structures with many openings, but its performance is affected significantly by the deformation of surrounding frames. Proposed in this study is a design procedure for seismic retrofit of steel frames with stud-type hysteretic damper. The maximum strength and minimum required stiffness of the damper are derived to prevent yielding and lateral buckling of the steel beam connected to the damper and to ensure sufficient energy dissipation. Validity of the proposed design procedure and the performance of retrofit strategy are confirmed fromthe test using a single story steel frame with a slitted steel shear wall.
