Abolfazl Jalili Sheshbahreh - University, Najafabad, Iran
Mohsen Izadinia - University, Najafabad, Iran

Computer enhancements make it possible to combine the theory of plasticity and sustainability known as advanced analysis. In this paper, the structural capacity diagram of a imperfections in the PAAP software using the advanced analysis. It was determined that the maximum reduction in load capacity was due to imperfections in the displacement of 0.20 m and at 7.88%. The effect of local buckling phenomenon was also examined with the help of changes in the software. The maximum reduction in load capacity for 1 and 2-storey frames was 2.90 and 1.6 times, respectively.

advanced analysis, nonlinear geometry and material, second order effects, initial geometric imperfections, local buckling.