ABSTRACT

Braced frames are widely used for steel constructions in seismic regions. In general, the axial load from the brace is transferred to the beam and column through the gusset plate, which is normally bolted or welded to the brace and connected to the column and beam by welds. Gusset plate should have sufficient strength and stiffness to transfer the applied forces. Fracture of a gusset plate connection will result in considerable loss of strength and stiffness of the brace. The seismic performance of the braced frame will be there by reduced. Many experimental and analytical studies have conducted to investigate the behavior of gusset plate connections. And the design provisions were updated based on the studies (AISC, 2005).