Surrogate Modeling for the Seismic Performance Assessment of Liquid Storage Tanks
Publication: Journal of Structural Engineering
Volume 143, Issue 4
Abstract
A three-dimensional surrogate model is presented for the seismic performance assessment of cylindrical atmospheric liquid storage tanks. The proposed model consists of a concentrated fluid mass attached to a single vertical beam-column element that rests on rigid beam-spokes with edge springs. The model is suitable for rapid static and dynamic seismic performance assessment. Contrary to other simplified models for tanks, its properties are determined through a simple structural analysis that can be performed in any nonlinear analysis software, without the need for complex finite-element models. The results compare favorably to those of three-dimensional finite-element models on three tanks of varying aspect ratios. A step-by-step example of the modeling procedure is presented for a squat unanchored tank, and a sensitivity analysis is conducted in order to investigate the effect of various modeling parameters on the seismic response of the proposed tank model.
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Acknowledgments
This research has been co-financed by the European Union [European Social Fund (ESF)] and Greek national funds through the Operational Program “Education and Lifelong Learning” of the National Strategic Reference Framework (NSRF)—Research Funding Program: THALES. Investing in knowledge society through the European Social Fund.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 143 • Issue 4 • April 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Dec 14, 2015
Accepted: Aug 1, 2016
Published online: Oct 25, 2016
Discussion open until: Mar 25, 2017
Published in print: Apr 1, 2017
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