ABSTRACT
The structural performance of a steel member concerned with the fracture is influenced by the member’s scale and loading speed. Thus, behaviors of full scale members under real seismic motion need to be clarified. The aim of this study is to simulate the fracture at the end of beam used in middle-rise moment resistant frames under severe earthquake. Specimens composed of H-shaped beams and box columns were subjected to seismic motions by means of shaking table tests, in which the inertial loading equipment was used. In this paper, two series of experiments are reported. The first aims at examining the effect of details of welded beam-to column connections on the deformation capacity. The second aims at examining the transition of fracture modes, from ductile ones to brittle ones, according to temperature.
