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Seismic behavior of a low-rise horizontal cylindrical tank

Authors
  • Fiore, Alessandra1, 2
  • Rago, Carlo3
  • Vanzi, Ivo1, 3, 4
  • Greco, Rita5
  • Briseghella, Bruno4
  • 1 University of Chieti-Pescara “G. d’Annunzio”, InGeo, Viale Pindaro 42, Pescara, 65127, Italy , Pescara (Italy)
  • 2 Politecnico di Bari, DICAR, Via Orabona 4, Bari, 70125, Italy , Bari (Italy)
  • 3 Spin-Off University of Chieti-Pescara “G. d’Annunzio”, Next Innovation in Engineering, Seconda traversa Strettola Sant’Anna alle Paludi n. 11, Naples, 80142, Italy , Naples (Italy)
  • 4 Fuzhou University, College of Civil Engineering, Fuzhou, Fujian, 350108, China , Fuzhou (China)
  • 5 Technical University of Bari, DICATECh, Via Orabona 4, Bari, 70125, Italy , Bari (Italy)
Type
Published Article
Journal
International Journal of Advanced Structural Engineering
Publisher
Springer Berlin Heidelberg
Publication Date
May 12, 2018
Volume
10
Issue
2
Pages
143–152
Identifiers
DOI: 10.1007/s40091-018-0188-y
Source
Springer Nature
Keywords
License
Green

Abstract

Cylindrical storage tanks are widely used for various types of liquids, including hazardous contents, thus requiring suitable and careful design for seismic actions. The study herein presented deals with the dynamic analysis of a ground-based horizontal cylindrical tank containing butane and with its safety verification. The analyses are based on a detailed finite element (FE) model; a simplified one-degree-of-freedom idealization is also set up and used for verification of the FE results. Particular attention is paid to sloshing and asynchronous seismic input effects. Sloshing effects are investigated according to the current literature state of the art. An efficient methodology based on an “impulsive-convective” decomposition of the container-fluid motion is adopted for the calculation of the seismic force. The effects of asynchronous ground motion are studied by suitable pseudo-static analyses. Comparison between seismic action effects, obtained with and without consideration of sloshing and asynchronous seismic input, shows a rather important influence of these conditions on the final results.

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