| This study presents an energy-based earthquake resistant design of steel moment resisting frames. First, the nature of the earthquake problem and the problems encountered in earthquake resistant design are briefly discussed. Energy-based earthquake resistant design philosophy is, then, introduced. Three steel moment resisting frames with 3-, 6-, and 10-stories, representing low-, medium, and high-rise structures, respectively, are selected and designed according to current seismic code provisions. The frames are subjected to six different earthquake ground motions having different characteristics such as frequency content, strong motion duration, predominant ground motion period and different soil conditions. A non-linear time history analysis is carried out to determine the energy demand of the frames. Energy dissipation capacities of the frame members, i.e. beams and columns, are evaluated based on the previous experimental studies on full-scale moment-connections. An energy-based earthquake resistant design methodology is developed based on these results. The proposed design method is examined and the results are discussed. |
