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Information Journal Paper

Title

Dynamic Analysis of Flexible Concrete Cylindrical Storage Tanks Subjected to Horizontal and Vertical Ground Motion

Pages

  39-57

Abstract

 Liquid storage tanks, as special structures, behave differently from ordinary structures in terms of dynamic behavior. These important structures are mostly constructed in two cylindrical and rectangular shapes, according to their use for storing various materials such as water and oil in the form of ground, elevated, buried and semi-buried. In this paper, an analytical method are presented for estimating the seismic responses of Concrete cylindrical tanks subjected to horizontal and vertical earthquake. Effects of liquid-shell interaction on the dynamic response of cylindrical tanks, taking into account the flexibility of the wall that filled or partially filled has been studied. The velocity potential function with the satisfaction of boundary conditions is solved by separating the variables. The solution of the problem of the liquid-shell system is used to obtain the impulsive pressure using the Rayleigh-Ritz method, using the vibration modes of flexible shells (open top-bottom clamped) with suitable boundary conditions. Special attention was given to Cos-type vibration modes. The results of this proposed analytical method are compared with the results of previous studies. Then by using the proposed analytical method, a mechanical model is presented with considering the flexibility and mass of the tank wall for Concrete cylindrical tank completely or partially filled with liquid. The results of proposed mechanical model and the accuracy of the resulting are compared with the analytical results and ACI 350. 3-06. Finally, the conclusion is that the estimating of the this standard are different from the analytical method, which is due to the inadequate consideration of the flexibility of the wall by this standard and the proposed mechanical model is in good agreement with analytical method in accuracy.

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    APA: Copy

    Behnamfar, farhad, MORADI, ROOHOLLAH, & Hashemi, Shamsedin. (2019). Dynamic Analysis of Flexible Concrete Cylindrical Storage Tanks Subjected to Horizontal and Vertical Ground Motion. JOURNAL OF CONCRETE RESEARCH, 12(1 ), 39-57. SID. https://sid.ir/paper/197195/en

    Vancouver: Copy

    Behnamfar farhad, MORADI ROOHOLLAH, Hashemi Shamsedin. Dynamic Analysis of Flexible Concrete Cylindrical Storage Tanks Subjected to Horizontal and Vertical Ground Motion. JOURNAL OF CONCRETE RESEARCH[Internet]. 2019;12(1 ):39-57. Available from: https://sid.ir/paper/197195/en

    IEEE: Copy

    farhad Behnamfar, ROOHOLLAH MORADI, and Shamsedin Hashemi, “Dynamic Analysis of Flexible Concrete Cylindrical Storage Tanks Subjected to Horizontal and Vertical Ground Motion,” JOURNAL OF CONCRETE RESEARCH, vol. 12, no. 1 , pp. 39–57, 2019, [Online]. Available: https://sid.ir/paper/197195/en

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