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<p>The article presents the course and results of the procedure for verifying the stability of the cylindrical shell of an oil tank with a floating roof, under wind load. Two dimensioning methods recommended by standard PN-EN 1993-1-6 were used, i.e. dimensioning based on the stress state and the MNA-LBA procedure. The method of determining the critical buckling resistance ratio from the linear bifurcation analysis (LBA) and the plastic reference resistance ratio from the physically nonlinear analysis (MNA) has been presented. Comparison of the results obtained with the use of the indicated design methods revealed significant discrepancies in the stress intensity levels of the analysed shell. When using the stress-based dimensioning method, it was shown that the buckling strength was exceeded by 33%, while the results of the MNA-LBA procedure indicated a 33% reserve of the capacity of the analysed system.</p>
</abstract>

The article presents the course and results of the procedure for verifying the stability of the cylindrical shell of an oil tank with a floating roof, under wind load. Two dimensioning methods recommended by standard PN-EN 1993-1-6 were used, i.e. dimensioning based on the stress state and the MNA-LBA procedure. The method of determining the critical buckling resistance ratio from the linear bifurcation analysis (LBA) and the plastic reference resistance ratio from the physically nonlinear analysis (MNA) has been presented. Comparison of the results obtained with the use of the indicated design methods revealed significant discrepancies in the stress intensity levels of the analysed shell. When using the stress-based dimensioning method, it was shown that the buckling strength was exceeded by 33%, while the results of the MNA-LBA procedure indicated a 33% reserve of the capacity of the analysed system.

Verification of the cylindrical tank shell stability using the stress design and the MNA-LBA procedure

Silesian University of Technology in Gliwice

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

The article presents the course and results of the procedure for verifying the stability of the cylindrical shell of an oil tank with a floating roof, under...

Verification of the cylindrical tank shell stability using the stress design and the MNA-LBA procedure

Publicado en línea: 02 dic 2021

Páginas: -

Recibido: 02 nov 2021

Aceptado: 26 nov 2021

DOI: https://doi.org/10.37705/TechTrans/e2021021

Palabras clave
MNA-LBA procedure, steel tank, buckling, plastic collapse, wind load

© 2021 Kamil Słowiński et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Verification of the cylindrical tank shell stability using the stress design and the MNA-LBA procedure

Publicado en línea: 02 dic 2021

Páginas: -

Recibido: 02 nov 2021

Aceptado: 26 nov 2021

DOI: https://doi.org/10.37705/TechTrans/e2021021

Palabras claveMNA-LBA procedure, steel tank, buckling, plastic collapse, wind load

© 2021 Kamil Słowiński et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Palabras clave
MNA-LBA procedure, steel tank, buckling, plastic collapse, wind load