Abstract
In order to examine the seismic behavior of steel frames with high stength bolted connections, a series of nonlinear response analysis has been performed using the ON-LINE HYBRID SIMULATION SYSTEM, and the obtained results have been compared with calculated results base on the bi-linear hysteretic model. The obtained results will be summarized as followes. 1) The adverse effects of the deterioration of the restoring force characteristics caused by the slippage of joint becomes more eminent as the natural period of structures becomes short. 2) There exist large difference between the maximum displacement response obtained through the experiment and those calculated with bi-linear model, but the difference in maximum velocity and maximum acceleratin response has been quite small.
