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The Effect of Topographic Irregularities on Seismic Response of the Concrete Rectangular Liquid Storage Tanks Incorporating Soil–Structure–Liquid Interaction
https://orcid.org/http://orcid.org/0000-0002-2603-0529
Theoretical and experimental studies on topographic irregularities show an extra amplification in these sites due to seismic waves. This significant fact compelled the researchers not only to evaluate the wave motion pattern, but also to consider its effect on structures built on the slopes. The main purpose of this study was to investigate the effect of topographic irregularities on seismic behavior of rectangular liquid storage tanks. To achieve this, several parametric studies have been done using the finite element method in the two-dimensional space. In order to evaluate the effect of topographic irregularities, flat and inclined soil surfaces with three different soil types are taken into account. Broad and slender tank configurations are studied under the effect of six different seismic motions with various ratios of peak ground acceleration to peak ground velocity. Also, in order to evaluate the effect of the presence of liquid on the tank response, the full tank and empty tank are studied. Using these different parameters, some comparisons are made on the base shear forces, tank wall displacement and sloshing responses. The results showed that amplification due to topographic irregularities has a significant effect on tank response. Furthermore, it is concluded that the earthquake frequency content considerably affects the dynamic behavior of the liquid tanks.
The Effect of Topographic Irregularities on Seismic Response of the Concrete Rectangular Liquid Storage Tanks Incorporating Soil–Structure–Liquid Interaction
https://orcid.org/http://orcid.org/0000-0002-2603-0529
Theoretical and experimental studies on topographic irregularities show an extra amplification in these sites due to seismic waves. This significant fact compelled the researchers not only to evaluate the wave motion pattern, but also to consider its effect on structures built on the slopes. The main purpose of this study was to investigate the effect of topographic irregularities on seismic behavior of rectangular liquid storage tanks. To achieve this, several parametric studies have been done using the finite element method in the two-dimensional space. In order to evaluate the effect of topographic irregularities, flat and inclined soil surfaces with three different soil types are taken into account. Broad and slender tank configurations are studied under the effect of six different seismic motions with various ratios of peak ground acceleration to peak ground velocity. Also, in order to evaluate the effect of the presence of liquid on the tank response, the full tank and empty tank are studied. Using these different parameters, some comparisons are made on the base shear forces, tank wall displacement and sloshing responses. The results showed that amplification due to topographic irregularities has a significant effect on tank response. Furthermore, it is concluded that the earthquake frequency content considerably affects the dynamic behavior of the liquid tanks.
The Effect of Topographic Irregularities on Seismic Response of the Concrete Rectangular Liquid Storage Tanks Incorporating Soil–Structure–Liquid Interaction
https://orcid.org/http://orcid.org/0000-0002-2603-0529
Theoretical and experimental studies on topographic irregularities show an extra amplification in these sites due to seismic waves. This significant fact compelled the researchers not only to evaluate the wave motion pattern, but also to consider its effect on structures built on the slopes. The main purpose of this study was to investigate the effect of topographic irregularities on seismic behavior of rectangular liquid storage tanks. To achieve this, several parametric studies have been done using the finite element method in the two-dimensional space. In order to evaluate the effect of topographic irregularities, flat and inclined soil surfaces with three different soil types are taken into account. Broad and slender tank configurations are studied under the effect of six different seismic motions with various ratios of peak ground acceleration to peak ground velocity. Also, in order to evaluate the effect of the presence of liquid on the tank response, the full tank and empty tank are studied. Using these different parameters, some comparisons are made on the base shear forces, tank wall displacement and sloshing responses. The results showed that amplification due to topographic irregularities has a significant effect on tank response. Furthermore, it is concluded that the earthquake frequency content considerably affects the dynamic behavior of the liquid tanks.
The Effect of Topographic Irregularities on Seismic Response of the Concrete Rectangular Liquid Storage Tanks Incorporating Soil–Structure–Liquid Interaction
Iran J Sci Technol Trans Civ Eng
Asgari, M. H. (author) / Khodakarami, M. I. (author) / Vahdani, R. (author)
2020-12-01
19 pages
Article (Journal)
Electronic Resource
English
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