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Strength of Welded Connections in Unanchored Steel Liquid Storage Tanks Under Seismic Loading

Papatheocharis, Theocharis / Varelis, George E. / Perdikaris, Philip C. / Karamanos, Spyros A.

The present work is part of an extensive European research program and examines the low-cycle fatigue resistance of the shell-to-base welded connections in unanchored steel tanks. Eight tests on fillet welded shell-to-base connections representing a prototype liquid storage tank were performed to evaluate their inelastic behavior under strong cyclic conditions. In all welded connections S275J2 grade was used for the base plate and S355J2 grade was used for the shell plate. Two different weld thicknesses were considered and a total of four displacement-controlled constant amplitude loading schemes were applied. Numerical models of the welded connections were also developed using ABAQUS finite element software, accounting for material and geometrical nonlinearities. The models were validated against the test results, which they matched closely. The analysis results basis was further expanded through a parametric analysis focusing on different weld sizes and different material grade allocation.

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Strength of Welded Connections in Unanchored Steel Liquid Storage Tanks Under Seismic Loading

Papatheocharis, Theocharis / Varelis, George E. / Perdikaris, Philip C. / Karamanos, Spyros A.

The present work is part of an extensive European research program and examines the low-cycle fatigue resistance of the shell-to-base welded connections in unanchored steel tanks. Eight tests on fillet welded shell-to-base connections representing a prototype liquid storage tank were performed to evaluate their inelastic behavior under strong cyclic conditions. In all welded connections S275J2 grade was used for the base plate and S355J2 grade was used for the shell plate. Two different weld thicknesses were considered and a total of four displacement-controlled constant amplitude loading schemes were applied. Numerical models of the welded connections were also developed using ABAQUS finite element software, accounting for material and geometrical nonlinearities. The models were validated against the test results, which they matched closely. The analysis results basis was further expanded through a parametric analysis focusing on different weld sizes and different material grade allocation.

Strength of Welded Connections in Unanchored Steel Liquid Storage Tanks Under Seismic Loading

Papatheocharis, Theocharis / Varelis, George E. / Perdikaris, Philip C. / Karamanos, Spyros A.

The present work is part of an extensive European research program and examines the low-cycle fatigue resistance of the shell-to-base welded connections in unanchored steel tanks. Eight tests on fillet welded shell-to-base connections representing a prototype liquid storage tank were performed to evaluate their inelastic behavior under strong cyclic conditions. In all welded connections S275J2 grade was used for the base plate and S355J2 grade was used for the shell plate. Two different weld thicknesses were considered and a total of four displacement-controlled constant amplitude loading schemes were applied. Numerical models of the welded connections were also developed using ABAQUS finite element software, accounting for material and geometrical nonlinearities. The models were validated against the test results, which they matched closely. The analysis results basis was further expanded through a parametric analysis focusing on different weld sizes and different material grade allocation.

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Title:

Strength of Welded Connections in Unanchored Steel Liquid Storage Tanks Under Seismic Loading

Additional title:

Lecture Notes in Civil Engineering

Contributors:

Mazzolani, Federico M. (editor) / Piluso, Vincenzo (editor) / Nastri, Elide (editor) / Formisano, Antonio (editor) / Papatheocharis, Theocharis (author) / Varelis, George E. (author) / Perdikaris, Philip C. (author) / Karamanos, Spyros A. (author)

Conference:

International Conference on the Behaviour of Steel Structures in Seismic Areas ; 2024 ; Salerno, Italy

Published in:

Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas ; Chapter: 82 ; 937-947

Lecture Notes in Civil Engineering ; 520

Publication date:

2024-06-24

Size:

11 pages

ISBN:

978-3-031-62888-7 , 978-3-031-62887-0

ISSN:

2366-2565 , 2366-2557

DOI:

https://doi.org/10.1007/978-3-031-62888-7_82

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Fillet-Weld Joint , Liquid Storage Tank , Low-Cycle Fatigue , Uplifting Engineering , Building Materials , Geotechnical Engineering & Applied Earth Sciences , Building Construction and Design

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