Abstract
Recently, required performances for high-performance buckling-restrained brace (BRB) as a structural control device has been examined. The brace connects rigid connections with the core-end is stable under cyclic loading and is effective as an energy dissipation device. But, it is difficult to design connections as a rigid in rotation, and three or four-hinge instability including connection and core-end is concerned. If the brace including connections becomes instable, BRB cannot fulfill its function as energy dissipation devices. Moreover, design method for these brace connections is not established. In this paper, out-of-plane behavior of various types of a gusset plate connections including bolted joint system tested, and required conditions of the connections for stable BRB's action has been analysed and discussed.
