Buckling Analysis - Case 02
Carlos Burato
![Carlos Burato]()
Carlos Burato
Consultor FEA. Engenharia Aplicada à Resolu??o de Conflitos, Perícia Técnica
Tank (API-650) - 20,000m3 - Diameter 42m
Roof
Structures:
- Rafters: W8x15
- Girders: W8x10 - W10x19
- Columns: C12x20.7 (02 pieces assembled at 90 ° in each column)
Consultor FEA. Engenharia Aplicada à Resolu??o de Conflitos, Perícia Técnica
8 年I agree with ?ukasz and Christos that sector bracing is important to improve the stability . But the smallest eigenvalue is 4.78, so I have a question, the structure is not stable with this eigenvalue?
Head of Civils, Dipl.Ing., MSc, CEng, MICE |Not knowing to what port to steer, no wind is favourable
8 年I agree with ?ukasz Skotny that sector bracing (forming a cross in plan view) would probably be required. If I'm not mistaken API-650 has provisions on this.
? Pressure Vessel Design ? Nonlinear FEA Analysis ? FEA Speaker/Teacher
8 年Hey Carlos! I think it would be nice to add some sector bracing in the roof (something like 4?). The thing is that most stability failures you have estimated with LBA are torsional in nature... those are tricky! With such diameter I think roof bracing would be nice. I would love to hear your opinion on that! Cheers ?ukasz