Author/Authors :
Briseghella Bruno نويسنده College of Civil Engineering, Fuzhou University, No. 2 Xueyuan Road, University Town, Fuzhou, Fujian 350116, China , Greco Rita نويسنده DICATECh, Technical University of Bari, via Orabona 4, 70125 Bari, Italy , Vanzi Ivo نويسنده InGeo, University of Chieti-Pescara “G. d’Annunzio”, Viale Pindaro 42, 65127 Pescara, Italy , Rago Carlo نويسنده Next Innovation in Engineering, Spin-Of University of Chieti-Pescara “G. d’Annunzio”, Seconda Traversa Strettola Sant’Anna alle Paludi n. 11, 80142 Naples, Italy , Fiore Alessandra نويسنده InGeo, University of Chieti-Pescara “G. d’Annunzio”, Viale Pindaro 42, 65127 Pescara, Italy
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