Seismic Design of Liquid Storage Tanks

Haroun, Medhat A.; Housner, George W.

doi:10.1061/jtcad9.0000080

Cited by 177 publications

(35 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, a higher aspect ratio (liquid height to diameter ratio "Hl/D") is obtained for a model with a larger cone angle which results in an increase in the impulsive mass and a decrease in the convective mass ratios. This is a well-established relationship reported by many researchers (Housner (1963), Housner (1981A), andVeletsos (1984)) and standards .…”

Section: Time History-modal Analysissupporting

confidence: 68%

“…Several other numerical and analytical studies taking into account the interaction between flexible shell and the containing liquid were conducted among which significant contributions were made by Haroun (1980) and Barton and Parker (1987). Haroun and Housner (1981A) studied the behavior of deformable liquid storage tanks using modal superposition analysis. In this study, the tank shell was modeled by finite elements and the fluid domain was treated mathematically using boundary solution technique.…”

Section: Response Of Ground-supported Tanksmentioning

confidence: 99%

“…The solution for problem (3-11) can be found in the literature (Haroun and Housner (1981A), Tokuda et al (1995)). At 0   the impulsive solution for hydrodynamic pressure is as…”

Section: Dynamic Response Under Horizontal Random Excitationmentioning

confidence: 99%

“…(3-14) and the obtained results will be compared with those calculated from FE in order to verify the proposed FEM. The analytical solution for problem (3-13) can be found in several research studies (Yang (1976), Fischer (1979), Haroun and Housner (1981A)). For a given relative wall…”

Section: Dynamic Response Under Horizontal Random Excitationmentioning

confidence: 99%

“…To further verify the proposed FE technique, the hydrodynamic response of the "Shallow" tank under random seismic excitation is obtained using the FE technique and the results are compared with the analytical solution proposed by Haroun and Housner (1981A). The considered tank is assumed to have fixed condition at the base.…”

Section: Verification Of Numerical Modelmentioning

confidence: 99%

See 4 more Smart Citations

Seismic Response of Ground Cylindrical and Elevated Conical Reinforced Concrete Tanks

Moslemi¹

2021

Preprint

View full text Add to dashboard Cite

In this study, the seismic performance of concrete ground-supported cylindrical as well as liquid-filled elevated water tanks supported on concrete shaft is evaluated using the finite element method. The effects of a wide spectrum of parameters such as liquid sloshing, tank wall flexibility, vertical ground acceleration, tank aspect ratio, base fixity, and earthquake frequency content on dynamic behaviour of such structures are examined. Furthermore, the adequacy of current practice in seismic analysis and design of liquid containing structures is investigated. A comprehensive parametric study covering a wide range of tank capacities and aspect ratios found in practice today is also carried out on elevated tanks. Two different innovative strategies to reduce the seismic response of elevated tanks are examined, in the first strategy the inclined cone angle of the lower portion of the vessel is increased while in the second strategy the supporting shaft structure is isolated either from the ground or the vessel mounted on top. The results of this study show that capability of the proposed finite element technique. Using this method, the major aspects in the fluid-structure interaction problems including wall flexibility, sloshing motion, damping properties of fluid domain, and the individual effects of impulsive and convective terms can be considered. The effects of tank wall flexibility, vertical ground acceleration, base fixity, and earthquake frequency content are found to be significant on the dynamic behaviour of liquid tanks. The parametric study indicates that the results can be utilized with high level of accuracy in seismic design applications for conical elevated tanks. This study further shows that increasing the cone angle of the vessel can result in a significant reduction in seismically induced forces of the tank, leading to an economical design of the shaft structure and the foundation system. It is also concluded that the application of passive control devices to conical elevated tanks offers a substantial benefit for the earthquake-resistant design of such structures.

show abstract

Section: Time History-modal Analysissupporting

confidence: 68%

Section: Response Of Ground-supported Tanksmentioning

confidence: 99%

“…The solution for problem (3-11) can be found in the literature (Haroun and Housner (1981A), Tokuda et al (1995)). At 0   the impulsive solution for hydrodynamic pressure is as…”

Section: Dynamic Response Under Horizontal Random Excitationmentioning

confidence: 99%

Section: Dynamic Response Under Horizontal Random Excitationmentioning

confidence: 99%

Section: Verification Of Numerical Modelmentioning

confidence: 99%

See 3 more Smart Citations

Seismic Response of Ground Cylindrical and Elevated Conical Reinforced Concrete Tanks

Moslemi¹

2021

Preprint

View full text Add to dashboard Cite

show abstract

New method for seismic isolation of liquid-storage tanks

Malhotra

1997

Earthquake Engng. Struct. Dyn.

View full text Add to dashboard Cite

Seismic base isolation of ground supported cylindrical liquid-storage tanks is proposed by disconnecting the wall of the tank from the base plate and supporting it on a ring of horizontally flexible bearings; the base plate is supported directly on the ground. The gap between the wall and the base plate is closed with a flexible membrane, which prevents the loss of fluid from the tank and allows the tank wall to move freely in the horizontal direction. The effect of isolation on both the impulsive and the convective (sloshing) responses of the liquid is examined for two steel tanks-one broad and one slender. It is shown that isolation can reduce dramatically the hydrodynamic base shears, overturning moments, and axial compressive stresses in the tank wall without significantly increasing the vertical displacements of the liquid surface due to sloshing. Since the weight supported by the bearings is small compared to the total liquid weight, the bearings in slender tanks experience a net tensile force during strong shaking.

show abstract

Wavelet‐based non‐stationary seismic rocking response of flexibly supported tanks

Chatterjee

Basu

2003

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

SUMMARYThe non-stationary rocking response of liquid storage tanks under seismic base excitations including soil interaction has been developed based on the wavelet domain random vibration theory. The ground motion has been characterized through statistical functionals of wavelet coe cients of the ground acceleration history. The tank-liquid-foundation system is modelled as a multi-degree-of-freedom (MDOF) system with both lateral and rocking motions of vibration of the foundation. The impulsive and convective modes of vibration of the liquid in the tank have been considered. The wavelet domain coupled dynamic equations are formulated and then solved to get the expressions of instantaneous power spectral density function (PSDF) in terms of functionals of input wavelet coe cients. The moments of the instantaneous PSDF are used to obtain the stochastic responses of the tank in the form of coe cients of hydrodynamic pressure, base shear and overturning base moment for the largest expected peak responses. Parametric variations are carried out to study the e ects of various governing parameters like height of liquid in the tank, height-radius ratio of the tank, ratio of total liquid mass to mass of foundation, and shear wave velocity in the soil medium, on the responses of the tank.

show abstract

Seismic Design of Liquid Storage Tanks

Cited by 177 publications

References 0 publications

Seismic Response of Ground Cylindrical and Elevated Conical Reinforced Concrete Tanks

Seismic Response of Ground Cylindrical and Elevated Conical Reinforced Concrete Tanks

New method for seismic isolation of liquid-storage tanks

Wavelet‐based non‐stationary seismic rocking response of flexibly supported tanks

Contact Info

Product

Resources

About