ABSTRACT

Large-scale structural testing was performed in order to investigate a comparison of the cyclic performance between the proposed steel structures that have slit dampers and that of a conventional welded moment resisting frame. A total of four specimens of beam-to-column connections were fabricated. Two pure steel specimens with slit damper are designated as D1 and D2, and one composite specimen with a slit damper is designated as D2C. The difference between specimen D1 and D2 is the detail of the slit damper, which was designed to achieve different ratios of the beam’s moment demand to its flexural strength. The difference between the D2 and D2C specimens where the same slit dampers were used is the presence of the floor slab. A conventional welded beam-tocolumn connection, designated as W, was constructed in order to provide a comparison for the proposed connections that have a slit damper.