Faced with growing requirements in terms of safety and regulatory compliance, an industrial site must conduct a safety review of its structures. The installations concerned include two independent metal structures and several reinforced concrete infrastructures. The objective: to reassess the solidity and stability of these structures by taking into account the natural phenomena likely to stress them (earthquakes, winds, significant snowfalls). The studies are based in particular on spectral modal seismic analyses and on scenarios of accidental climate events.

The volume of studies, estimated at 4,000 hours, includes the detailed recalculation of each load-bearing element, the updating of simulation models and the verification of anchors and assemblies. This approach must ensure the sustainability of the infrastructure and protect the teams working on site. In addition, it provides a precise vision of the capacity of each lot (metallic or concrete) to withstand the constraints imposed by its operation and by possible extreme situations. The final result makes it possible, if necessary, to adapt maintenance plans and to plan possible reinforcement operations.