Behavior of Liquid Storage Tank Under Multidirectional Excitation

Vern, Sourabh; Shrimali, Mahendra Kumar; Bharti, Shiv Dayal; Datta, T. K.

doi:10.1007/978-981-15-5235-9_16

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…Seven near-fault records from the Pacific Earthquake Engineering Research Center-Next Generation Attenuation (PEER-NGA) [66] were selected in this study. It has been shown in the literature that the vertical earthquake component significantly affects the seismic response of liquid storage tanks, particularly the impulsive response [8,67,68]. Therefore, all three earthquake components were considered in the analysis of the threedimensional liquid storage tank.…”

Section: Record Selectionmentioning

confidence: 99%

Effects of Higher Sloshing Modes on the Response of Rectangular Concrete Water Storage Tanks with Different Aspect Ratios to Near-Field Earthquakes

Abizadeh,

Hosseini,

Hosseini

2023

Applied Sciences

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Near-field earthquakes have been shown to have different effects on structures than far-field events. This study examines the dynamic response of a rectangular concrete liquid storage tank with tapered walls to near-field ground motions, with particular emphasis on the effect of higher sloshing modes. The tank’s numerical modeling, calibrated using experimental results, was performed considering the tank’s wall flexibility. Seven selected near-field records were applied in each case, and the effects of the first five sloshing modes on the tank response at three different locations, including the corner, middle of the long wall, and middle of the short wall, were investigated. The effect of the earthquake incident angle on the tank’s response was also studied by applying major and minor horizontal earthquake components once along the longer and shorter tank walls, respectively, and vice versa. Results show that the tank corner may have a sloshing height up to 50% greater than the middle of the walls and that the maximum sloshing response is substantially influenced by the spectral acceleration value at the first sloshing period. Higher sloshing modes are found to affect the sloshing response, with a maximum R2 score of 0.95, depending on the excitation’s incidence angle.

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Section: Record Selectionmentioning

confidence: 99%

Effects of Higher Sloshing Modes on the Response of Rectangular Concrete Water Storage Tanks with Different Aspect Ratios to Near-Field Earthquakes

Abizadeh,

Hosseini,

Hosseini

2023

Applied Sciences

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“…As the finite element approach becomes more robust in solving the fluid sloshing and isolators' nonlinear behavior, several researchers obtain the solutions by this novel approach [22][23][24][25][26][27]. Extending the FEM, various studies were conducted to obtain the base-isolated LSTs' solutions under seismic excitation.…”

Section: Introductionmentioning

confidence: 99%

Response and damage evaluation of base-isolated concrete liquid storage tank under seismic excitations

et al. 2021

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The present study analyzes flexible rectangular concrete base-isolated liquid storage tanks (LSTs) for bi-directional earthquakes. The base-isolated LST is modeled in ABAQUS finite element software. The liquid is modeled by the Equation of State (EoS) with arbitrary Lagrangian-Eulerian (ALE) remeshing algorithm, whereas the hexahedral solid finite elements model LST. Nonlinear time history analysis is performed by considering the LSTs' material nonlinearity and the nonlinearity produced in LST due to the water-structure interaction. As illustrative examples, different LSTs are considered in the present study with five lead rubber bearing (LRB) isolators each, four at the corners and one at the center. The parameters varied for analysis are the isolators' effective frequency, peak ground acceleration (PGA), height of water, and aspect ratio of LSTs. The response quantities of interest include Tresca stress, sloshing height, hydrodynamic pressure, overturning moment, and base shear. The numerical study results show that the liquid's sloshing increases by about 20%-30% at optimum frequency. Still, the forces induced in the tank are considerably reduced. The height of water, and aspect ratio of LSTs significantly influences the response behavior of the isolated tank.

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Response Reductions in Base-Isolated Liquid Storage Tank Under Far and Near Field Seismic Excitations

Vern¹,

Tolani²,

Bharti³

et al. 2021

Springer Tracts in Civil Engineering

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Behavior of Liquid Storage Tank Under Multidirectional Excitation

Cited by 5 publications

References 13 publications

Effects of Higher Sloshing Modes on the Response of Rectangular Concrete Water Storage Tanks with Different Aspect Ratios to Near-Field Earthquakes

Effects of Higher Sloshing Modes on the Response of Rectangular Concrete Water Storage Tanks with Different Aspect Ratios to Near-Field Earthquakes

Response and damage evaluation of base-isolated concrete liquid storage tank under seismic excitations

Response Reductions in Base-Isolated Liquid Storage Tank Under Far and Near Field Seismic Excitations

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