عنوان مقاله [English]
One of the issues that affects the behavior of the structure during an earthquake is the geometrical shape of the cross section of the structure's columns. In concrete buildings, it is possible to use columns with different shapes, which can be different in terms of behavior and performance. In this research, for the analysis and design of the studied structures, two completely similar concrete buildings, one with columns with a cut surface, are compared and analyzed. circular and the other with a square cross-section under the effect of earthquake force. The results shown in the comparison of stresses and drift in two four-story buildings with circular and square columns have been analyzed by dynamic analysis, and the minimum and maximum drift and the permissible value are specified graphically. In this research, modeling of flexural concrete frame with square and circular columns under earthquake force in Etabse software and applying loads to it and performing dynamic analysis, the results were extracted from the said software and compared. The results of this research showed that the amount The energy loss of circular columns is more than that of square columns. Also, the ductility of circular columns is more than square columns, in general, the performance of circular columns in short buildings is better than square columns.