Parametric Study on Dynamic Behavior of Liquid Storage Tanks Subjected to Pulse-Like Excitations

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Bagheri Saman; Hayati Raad Hossein

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Paper Information

Journal: JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING Year:2019 | Volume:6 | Issue:2 (24) Page(s): 77-88

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Information Journal Paper

Title

Parametric Study on Dynamic Behavior of Liquid Storage Tanks Subjected to Pulse-Like Excitations

Author(s)

Bagheri Saman | Hayati Raad Hossein | Issue Writer Certificate

Keywords

Liquid storage tanksQ1

Near-fault earthquakeQ1

Pulse-like excitationQ1

Structure-fluid interactionQ2

Seismic responseQ1

Abstract

Liquid storage tanks are widely used to store different types of liquids such as petroleum products. Any failure of these structures may cause serious consequences. Near-fault ground motions which may have severe velocity pulses have a destructive potential on these facilities and can be represented by analytical pulse-like functions. In this paper, a parametric study is carried out to investigate the seismic behavior of Liquid storage tanks under Pulse-like excitations. For this purpose, the Liquid storage tanks are modeled using equivalent mechanical models and then dynamic analyses of the models are done using Pulse-like excitations. The selected analytical Pulse-like excitation is based on the modified Gabor Wavelet transform with four main characteristics: amplitude of the signal, period of the signal, shape (phase) of the signal, and the number of pulses. The effect of each pulse parameter as well as the effect of tank aspect ratio on the various response parameters is investigated. The obtained results indicate that the sloshing motion of the liquid near the free surface is affected more by equivalent pulses with long periods while the base shear and overturning moment are affected more by equivalent pulses with short periods. It is also seen that by increasing the number of pulses, the response parameters increase considerably when the pulse period is near the natural period of the convective mode. However, changing the phase of input signals in order to produce symmetric or anti-symmetric pulses has not any noticeable effect on the obtained results.

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APA: Copy

Bagheri, Saman, & Hayati Raad, Hossein. (2019). Parametric Study on Dynamic Behavior of Liquid Storage Tanks Subjected to Pulse-Like Excitations. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, 6(2 (24) ), 77-88. SID. https://sid.ir/paper/252613/en

Vancouver: Copy

Bagheri Saman, Hayati Raad Hossein. Parametric Study on Dynamic Behavior of Liquid Storage Tanks Subjected to Pulse-Like Excitations. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING[Internet]. 2019;6(2 (24) ):77-88. Available from: https://sid.ir/paper/252613/en

IEEE: Copy

Saman Bagheri, and Hossein Hayati Raad, “Parametric Study on Dynamic Behavior of Liquid Storage Tanks Subjected to Pulse-Like Excitations,” JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, vol. 6, no. 2 (24) , pp. 77–88, 2019, [Online]. Available: https://sid.ir/paper/252613/en

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