Steel and Composite Structures

  • 제9권2호
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  • Pages.119-130
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  • 2009
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Dynamic response of empty steel tanks with dome roof under vertical base motion

  • Virella, Juan C. (Department of Civil Engineering and Surveying, University of Puerto Rico) ;
  • Godoy, Luis A. (Department of Civil Engineering and Surveying, University of Puerto Rico)
  • 투고 : 2006.05.02
  • 심사 : 2008.11.01
  • 발행 : 2009.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper reports results of the structural response of empty steel tanks under vertical ground motions. The tanks are modeled using a finite element discretization using shell elements, and the vertical motion is applied and analyzed using nonlinear dynamics. Several excitation frequencies are considered, with emphasis on those that may lead to resonance of the roof. The computational results illustrate that as the base motion frequency is tuned with the frequency of the first roof-mode of the tank, the system displays large-amplitude displacements. For frequencies away from such mode, small amplitude displacements are obtained. The effect of the height of the cylinder on the dynamic response of the tank to vertical ground motion has also been investigated. The vertical acceleration of the ground motion that induces significant changes in the stiffness of the tank was found to be almost constant regardless of the height of the cylinder.

키워드

참고문헌

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피인용 문헌

  1. Nonlinear numerical evaluation of large open-top aboveground steel welded liquid storage tanks excited by seismic loads vol.119, 2017, https://doi.org/10.1016/j.tws.2017.07.017
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  3. Experiments on Stability Performance of Thin-Walled, Open-Top Steel Storage Tanks Subjected to Local Support Settlement vol.21, pp.1, 2009, https://doi.org/10.1142/s021945542150005x
  4. Seismic analysis of high-rise steel frame building considering irregularities in plan and elevation vol.39, pp.1, 2009, https://doi.org/10.12989/scs.2021.39.1.065