Avoid over-sizing
The Eurocode 7 (foundations) does not consider the risk level of the structure which leads to incoherent sizing in comparison with the superstructure. Thus, some foundations possess a probability of failure a hundred times lower than the consequence classes identified by the European norm.
![Image](https://www.phimeca.com/wp-content/uploads/2020/03/surdimensionnement.png)
![Image](https://www.phimeca.com/wp-content/uploads/2020/10/distribution_eng.png)
Modelling the random
The different parameters defining the wind force and the real structures geometry are subject to uncertainties: their variations are realistically translated in the probability distributions that each one of these variables follow.![Image](https://www.phimeca.com/wp-content/uploads/2020/03/optimisation.png)