نوع مقاله : مقاله پژوهشی
عنوان مقاله English
This research reviews the characteristics of strong ground motions in near-fault zones and analyzes their effects on the seismic behavior of mid-rise structures with two types of earthquake resistant skeletons. The studied structural models are mid-rise 10-story buildings with bundled tube and 3d moment frame skeletons. Also, the analytical capability of the modal pushover analysis (MPA) method has been studied based on the estimation of structural response parameters. The maximum inter-story drift, axial force, and roof maximum displacement of the studied structures were determined by conducting nonlinear dynamic time history analyses (NTHA) and the MPA method under the effects of lateral loads. An analytical comparison was accomplished among the obtained results. The processing point with the updated approach has also been investigated based on the effects of near-field earthquakes affected by various directivity processes, in the implementation of the analytical procedure and the computational efficiency of the modal pushover method. The results of this study show that the error of the modal pushover analysis method, the values of which also differ in the different floor levels, changes according to the number of vibration modes, the type of response parameter, and the type of seismic resistant structure.
کلیدواژهها English