Earthquakes and Structures

  • 제13권1호
  • /
  • Pages.67-77
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  • 2017
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic response analysis of an unanchored vertical vaulted-type tank

  • Zhang, Rulin (College of Pipeline and Civil Engineering, China University of Petroleum (East China)) ;
  • Cheng, Xudong (College of Pipeline and Civil Engineering, China University of Petroleum (East China)) ;
  • Guan, Youhai (College of Pipeline and Civil Engineering, China University of Petroleum (East China)) ;
  • Tarasenko, Alexander A. (Industrial University of Tyumen)
  • 투고 : 2016.06.23
  • 심사 : 2017.07.14
  • 발행 : 2017.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Oil storage tanks are vital life-line structures, suffered significant damages during past earthquakes. In this study, a numerical model for an unanchored vertical vaulted-type tank was established by ANSYS software, including the tank-liquid coupling, nonlinear uplift and slip effect between the tank bottom and foundation. Four actual earthquakes recorded at different soil sites were selected as input to study the dynamic characteristics of the tank by nonlinear time-history dynamic analysis, including the elephant-foot buckling, the liquid sloshing, the uplift and slip at the bottom. The results demonstrate that, obvious elephant-foot deformation and buckling failure occurred near the bottom of the tank wall under the seismic input of Class-I and Class-IV sites. The local buckling failure appeared at the location close to the elephant-foot because the axial compressive stress exceeded the allowable critical stress. Under the seismic input of Class-IV site, significant nonlinear uplift and slip occurred at the tank bottom. Large amplitude vertical sloshing with a long period occurred on the free surface of the liquid under the seismic wave record at Class-III site. The seismic properties of the storage tank were affected by site class and should be considered in the seismic design of large tanks. Effective measures should be taken to reduce the seismic response of storage tanks, and ensure the safety of tanks.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. ANSYS Inc. (2012), http://www.ansys.com.
  2. ANSYS software. (2007), Engineering simulation software, version 14. Pennsylvania, United States: Canonsburg.
  3. Bayraktar, A., Sevim, B., Altunisik, A.C. and Turker, T. (2010), "Effect of the model updating on the earthquake behavior of steel storage tanks", J. Constr. Steel. Res., 66(3), 426-469.
  4. Cooper, T.W. and Wachholz, T.P. (1999), "Optimizing postearthquake lifeline system reliability", Proceeding of the 5th US Conference on Lifeline Earthquake Engineering, Seattle, USA, August.
  5. Curadelli, O. (2013), "Equivalent linear stochastic seismic analysis of cylindrical base-isolated liquid storage tanks", J. Constr. Steel. Res., 83(2), 166-176. https://doi.org/10.1016/j.jcsr.2012.12.022
  6. GB 50341-2014 (2014), Code for Design of Vertical Cylindrical Welded Steel Oil Tanks, Ministry of Housing and Urban-Rural Development of the People's Republic of China, Beijing, China.
  7. Goudarzi, M.A. and Sabbagh-Yazdi, S.R. (2009), "Numerical investigation on accuracy of mass spring models for cylindrical tanks under seismic excitation", Int. J. Civ. Eng., 7(3), 190-202.
  8. Haroun, M.A. (1983), "Vibration studies and test of liquid storage tanks", Earthq. Eng. Struct. D., ASCE, 11(2), 179-206. https://doi.org/10.1002/eqe.4290110204
  9. Hesamaldin, M., Masoud, M. and Touraj, T. (2014), "Probabilistic analysis of seismically isolated elevated liquid storage tank using multi-phase friction bearing", Earthq. Struct., 6(1), 111-125. https://doi.org/10.12989/eas.2014.6.1.111
  10. Hosseinzadeh, N., Kazem, H., Ghahremannejad, M., Ahmadi, E. and Kazem, N. (2013), "Comparison of API650-2008 provisions with FEM analyses for seismic assessment of existing steel oil storage tanks", J. Loss. Prevent. Proc., 26(4), 666-675. https://doi.org/10.1016/j.jlp.2013.01.004
  11. Li, J.Y., You, X.C., Cui, H.C. and Ju, J.S. (2015), "Analysis of large concrete storage tank under seismic response", J. Mech. Sci. Technol., 29(1), 85-91. https://doi.org/10.1007/s12206-014-1213-0
  12. Liu, M. and Gorman, D.G. (1995), "Formulation of Rayleigh damping and its extensions," Comput. Struct., 57(2), 277-285. https://doi.org/10.1016/0045-7949(94)00611-6
  13. Livaoglu, R. and Dogangun, A. (2007), "Effect of foundation embedment on seismic behavior of elevated tanks considering fluid-structure-soil interaction", Soil. Dyn. Earthq. Eng., 27(9), 855-863. https://doi.org/10.1016/j.soildyn.2007.01.008
  14. Ma, Q.L., Lu, X.Z. and Ye, L.P. (2008), "Influence of the interstory post-yield stiffness to the variance of seismic response", Eng. Mech., 25(7), 133-141.
  15. Newmark, N.M. (1959), "A method of computation for structural dynamics", J. Eng. Mech., ASCE, 85(1), 67-94.
  16. Newmark, N.M. and Rosenblueth, E. (1971), Fundamentals of earthquake engineering, Prentice-Hall, Englewood Cliffs, NJ, USA.
  17. Ormeno, M., Larkin, T. and Chouw, N. (2015), "Evaluation of seismic ground motion scaling procedures for linear timehistory analysis of liquid storage tanks", Eng. Struct., ASCE, 102, 266-277. https://doi.org/10.1016/j.engstruct.2015.08.024
  18. Park, J.H., Bae, D. and Chang, K.O. (2016), "Experimental study on the dynamic behavior of a cylindrical liquid storage tank subjected to seismic excitation", Int. J. Steel. Struct., 16(3), 935-945. https://doi.org/10.1007/s13296-016-0172-y
  19. Seleemah, A.A. and Mohamed, E.S. (2011), "Seismic analysis and modeling of isolated elevated liquid storage tanks", Earthq. Struct., 2(4), 397-412. https://doi.org/10.12989/eas.2011.2.4.397
  20. Udwadia, F.E. and Tabaie, S. (1981), "Pulse control of single degree-of-freedom system", J. Eng. Mech. Div., ASCE, 107(6), 997-1009.
  21. Velersos, A.S. and Yang, J.Y. (1977), "Earthquake response of liquid storage tanks", Proceedings of the First ASCE-EMD Specialty Conference on Mechanics in Engineering, Raleigh, North Carolina, USA, May.