Silos and tanks - Gardanne and Huchet (FRANCE): October 2004 - January 2006

Collaboration for the supply of the structural calculations and checks of 5 steel tanks and 3 steel silos to storage gypsum and similar. The structures have to be installed in the Gardanne and Huchet plant (France). The load analysis, calculation and checks are carried out according to the Eurocodes and the french codes (regles NV65, PV92, ...). The seismic analysis has been performed by the equivalent static force method, according to Eurocode 8 part 1-4. The most important problem in this kind of structures is the shell instability under axial and flexural forces. The instability analysis has been performed according to the Eurocode 3 part 1-6 (Eurocode 3 - Design of steel structures - Part 1-6: Strength and stability of shell structures).