The organizational evaluation includes the finite element modeling (FEM) of the structural systems subjected to operative loads as wells as transient loads and temperature effects. Linear static & dynamic analysis, as well as non-linear static and dynamic analysis for each particular structural system, can be performed as part of the evaluation. Moreover, calculations may be used for simple structures and for verification purposes. Organizational evaluation is typically performed following the load requirements and guidelines of the applicable codes. The ACI 313 and the Euro code are generally used for the evaluation of silos.