Abstract
This paper describes the seismic performance of T-shaped beam-to-column connections on steel rigid-frame piers. To examine the limit state for this performance and evaluation methods thereof based on the elasto-plastic behavior of beam-to-column connections, elasto-plastic FEM was used to parametrically analyze models of actual structures. Consequently, the damage process and buckling modes for beam-to-column connections were clarified, and it was noted that the limit state of these connections in seismic design could be set according to the damage process. Furthermore, this paper proposes yield stress evaluation methods for web panels that take into consideration the limit state of beam-to-column connections and confirms the validity of these methods by comparing analytical and experimental results with calculations obtained by the proposed methods.
