Evaluation of the performance of moment resisting steel frames under near field and far field earthquakes based on energy conception

Abstract

Various researches show that other parameters are also involved in seismic response of structures and only the force-displacement issue in elastic or even bilinear elastic perfectly plastic states is not capable of justifying the entire seismic behaviors of structures. Therefore, researchers are seeking for propose a new method in the seismic design of structures. In this regards and during the last two decades, the subject of energy has been highly taken into consideration, because, they have found many of justifiable and applicable parameters and behaviors in seismic design of structures along with the achieved advances in this method. In the present paper, three structures with ordinary moment resisting frames and number of stories of 3, 6, and 12 have been subjected to equivalent static loading in SAP2000 (VER 16.0.0) software. Then, these structures have been nonlinearly analyzed in PERFORM-3D (VER 5.0) software under Loma Prieta, Landers, and Northridge earthquakes in far and near fields. The obtained results indicate that the input energy to structure is larger in the cases of near field (near fault) earthquakes.