L’UTILIZZO DI PARATIE PLUS PER ANALISI SISMICHE PSEUDO-STATICHE DI OPERE DI SOSTEGNO FLESSIBILI

The seismic analysis of flexible retaining structures may represent a very challenging task for soil engineers if all the physical aspects were to be considered in a rigorous manner. However, in low seismic zones or limited to preliminary design stages, simplified analysis methods are still widely used. In this respect, this paper aims at addressing some common issues of seismic analysis with the non linear spring method, which is still one of the most popular methods in the practice. An improvement to include seismic effects within a pseudo-static framework is presented. Some examples and comparison with other design methods are discussed.