Abstract
Both at the national and international level, the specialized literature devotes many lines to the description of the various seismic calculation methods largely applicable to buildings. Very few of these descriptions and references, however, are applicable to earthquake analysis for the verification of steel or reinforced concrete silos. The most advanced international seismic design standard EN 1998, presents through its fourth part, principles of anti-seismic design of silos, emphasizing two approaches: the approach in which the earthquake can be considered action and the approach in which the earthquake can be considered in the calculation as an effect. The article contributes with an alternative seismic calculation by effects in which the calculation principles of SR EN 1998-4 will be followed.