Coupled systems mechanics

  • 제1권4호
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  • Pages.311-324
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  • 2012
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  • 2234-2184(pISSN)
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  • 2234-2192(eISSN)
테크노프레스 (Techno-Press)
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Influence of uplift on liquid storage tanks during earthquakes

  • Ormeno, Miguel (Department of Civil and Environmental Engineering, The University of Auckland, Faculty of Engineering) ;
  • Larkin, Tam (Department of Civil and Environmental Engineering, The University of Auckland, Faculty of Engineering) ;
  • Chouw, Nawawi (Department of Civil and Environmental Engineering, The University of Auckland, Faculty of Engineering)
  • 투고 : 2012.09.20
  • 심사 : 2012.11.08
  • 발행 : 2012.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Previous investigations have demonstrated that strong earthquakes can cause severe damage or collapse to storage tanks. Theoretical studies by other researchers have shown that allowing the tank to uplift generally reduces the base shear and the base moment. This paper provides the necessary experimental confirmation of some of the numerical finding by other researchers. This paper reports on a series of experiments of a model tank containing water using a shake table. A comparison of the seismic behaviour of a fixed base system (tank with anchorage) and a system free to uplift (tank without anchorage) is considered. The six ground motions are scaled to the design spectrum provided by New Zealand Standard 1170.5 (2004) and a range of aspect ratios (height/radius) is considered. Measurements were made of the impulsive acceleration, the horizontal displacement of the top of the tank and uplift of the base plate. A preliminary comparison between the experimental results and the recommendations provided by the liquid storage tank design recommendations of the New Zealand Society for Earthquake Engineering is included. The measurement of anchorage forces required to avoid uplift under varying conditions will be discussed.

키워드

참고문헌

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피인용 문헌

  1. Impact of Vertical Ground Excitation on a Bridge with Footing Uplift vol.20, pp.7, 2016, https://doi.org/10.1080/13632469.2015.1113450
  2. Investigation of the dynamic behaviour of a storage tank with different foundation types focusing on the soil-foundation-structure interactions using centrifuge model tests vol.46, pp.14, 2017, https://doi.org/10.1002/eqe.2905
  3. 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
  4. Review of API 650 Annex E: Design of large steel welded aboveground storage tanks excited by seismic loads vol.112, 2017, https://doi.org/10.1016/j.tws.2016.11.013
  5. Design of LQR controller for active suspension system of Partially Filled Tank Cars vol.49, pp.3, 2014, https://doi.org/10.12989/sem.2014.49.3.329
  6. The effect of seismic uplift on the shell stresses of liquid-storage tanks vol.44, pp.12, 2015, https://doi.org/10.1002/eqe.2568
  7. Seismic Analysis of Open-Top Storage Tanks With Flexible Foundation vol.141, pp.4, 2012, https://doi.org/10.1115/1.4043373
  8. Rigid block coupled with a 2 d.o.f. system: Numerical and experimental investigation vol.9, pp.6, 2012, https://doi.org/10.12989/csm.2020.9.6.539