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Seismic Assessment of Impulsive and Convective Responses for A Base-Isolated Rectangular Liquid Tank with Eccentric Internal Submerged Block
https://orcid.org/http://orcid.org/0000-0003-1358-2305
The present paper focuses on the quantification of impulsive and convective response components of hydrodynamic pressure and base shear on the tank-block-isolation system. The seismic behavior of partially filled rectangular liquid tank with an internal submerged block is numerically investigated. The effectiveness of laminated rubber bearing is emphasized in the dynamic response of base-isolated liquid tank. Six real ground motions of different frequency contents are prescribed for the study. A velocity potential-based Galerkin finite element model is employed for the analysis. The efficacy of the developed numerical model is validated with the published results. The eccentric presence of the block appreciably reduces the absolute peaks of total and impulsive base shear response irrespective of the frequency content of the selected ground motions. The application of base isolation significantly reduces the hydrodynamic pressure irrespective of different positions of the block. The impulsive response component is found to be predominant throughout the dynamic behavior of the non-isolated tank with and without submerged block. Conversely, for the isolated tank, the convective response is invariably dominant over the impulsive response in the majority of earthquakes considered in this study. It is concluded that the sloshing amplitude and hydrodynamic base shear of the tank-block-isolation system are highly sensitive to the frequency characteristics of the selected ground motions. Moreover, the developed finite element model is very efficient in accurately assessing the components (impulsive and convective) of hydrodynamic pressure and base shear.
Seismic Assessment of Impulsive and Convective Responses for A Base-Isolated Rectangular Liquid Tank with Eccentric Internal Submerged Block
https://orcid.org/http://orcid.org/0000-0003-1358-2305
The present paper focuses on the quantification of impulsive and convective response components of hydrodynamic pressure and base shear on the tank-block-isolation system. The seismic behavior of partially filled rectangular liquid tank with an internal submerged block is numerically investigated. The effectiveness of laminated rubber bearing is emphasized in the dynamic response of base-isolated liquid tank. Six real ground motions of different frequency contents are prescribed for the study. A velocity potential-based Galerkin finite element model is employed for the analysis. The efficacy of the developed numerical model is validated with the published results. The eccentric presence of the block appreciably reduces the absolute peaks of total and impulsive base shear response irrespective of the frequency content of the selected ground motions. The application of base isolation significantly reduces the hydrodynamic pressure irrespective of different positions of the block. The impulsive response component is found to be predominant throughout the dynamic behavior of the non-isolated tank with and without submerged block. Conversely, for the isolated tank, the convective response is invariably dominant over the impulsive response in the majority of earthquakes considered in this study. It is concluded that the sloshing amplitude and hydrodynamic base shear of the tank-block-isolation system are highly sensitive to the frequency characteristics of the selected ground motions. Moreover, the developed finite element model is very efficient in accurately assessing the components (impulsive and convective) of hydrodynamic pressure and base shear.
Seismic Assessment of Impulsive and Convective Responses for A Base-Isolated Rectangular Liquid Tank with Eccentric Internal Submerged Block
https://orcid.org/http://orcid.org/0000-0003-1358-2305
The present paper focuses on the quantification of impulsive and convective response components of hydrodynamic pressure and base shear on the tank-block-isolation system. The seismic behavior of partially filled rectangular liquid tank with an internal submerged block is numerically investigated. The effectiveness of laminated rubber bearing is emphasized in the dynamic response of base-isolated liquid tank. Six real ground motions of different frequency contents are prescribed for the study. A velocity potential-based Galerkin finite element model is employed for the analysis. The efficacy of the developed numerical model is validated with the published results. The eccentric presence of the block appreciably reduces the absolute peaks of total and impulsive base shear response irrespective of the frequency content of the selected ground motions. The application of base isolation significantly reduces the hydrodynamic pressure irrespective of different positions of the block. The impulsive response component is found to be predominant throughout the dynamic behavior of the non-isolated tank with and without submerged block. Conversely, for the isolated tank, the convective response is invariably dominant over the impulsive response in the majority of earthquakes considered in this study. It is concluded that the sloshing amplitude and hydrodynamic base shear of the tank-block-isolation system are highly sensitive to the frequency characteristics of the selected ground motions. Moreover, the developed finite element model is very efficient in accurately assessing the components (impulsive and convective) of hydrodynamic pressure and base shear.
Seismic Assessment of Impulsive and Convective Responses for A Base-Isolated Rectangular Liquid Tank with Eccentric Internal Submerged Block
Iran J Sci Technol Trans Civ Eng
Barik, Jyoti Ranjan (author) / Biswal, Kishore Chandra (author)
2023-08-01
27 pages
Article (Journal)
Electronic Resource
English
Quantification of Seismic Response of Partially Filled Rectangular Liquid Tank with Submerged Block
| Online Contents | 2013
Quantification of Seismic Response of Partially Filled Rectangular Liquid Tank with Submerged Block
| Taylor & Francis Verlag | 2013
| British Library Online Contents | 2017