Application of extended N2 method to irregular reinforced concrete structures

Many shocking earthquakes have been occurred in the world and our country which intensified the studies on earthquake resistant structural analysis and design. Since methods such as equivalent static lateral force method are not sufficient for irregular structures; engineers have begun to apply nonlinear analysis methods. Although static methods are not sufficient for many cases such as structural irregularities, reversible effects of modes; still being used more often than dynamic time-history method which gives the most accurate result. The reason behind is, static methods are easy to use, and require less knowledge, experience, time and effort. In this study; firstly, static pushover analysis has been applied to the three buildings by calculating the target displacements using N2 method. Then, the extended N2 method has been applied to the same buildings. The results obtained were compared using the dynamic time-history analysis.