Earthquakes and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Vibration mode decomposition response analysis of large floating roof tank isolation considering swing effect

  • Sun, Jiangang (College of Civil Engineering, Dalian Minzu University) ;
  • Cui, Lifu (College of Civil Engineering, Dalian Minzu University) ;
  • Li, Xiang (College of Civil Engineering, Dalian Minzu University) ;
  • Wang, Zhen (College of Civil Engineering, Dalian Minzu University) ;
  • Liu, Weibing (College of Civil Engineering, Dalian Minzu University) ;
  • Lv, Yuan (Institute of Road and Bridge Engineering, Dalian Maritime University)
  • Received : 2017.12.10
  • Accepted : 2018.07.14
  • Published : 2018.10.25
⟨ Previous Next ⟩

Abstract

To solve the seismic response problem of a vertical floating roof tank with base isolation, the floating roof is assumed to experience homogeneous rigid circular plate vibration, where the wave height of the vibration is linearly distributed along the radius, starting from the theory of fluid velocity potential; the potential function of the liquid movement and the corresponding theoretical expression of the base shear, overturning the moment, are then established. According to the equivalent principle of the shear and moment, a simplified mechanical model of a base isolation tank with a swinging effect is established, along with a motion equation of a vertical storage tank isolation system that considers the swinging effect based on the energy principle. At the same time, taking a 150,000 m 3 large-scale storage tank as an example, a numerical analysis of the dampening effect was conducted using a vibration mode decomposition response spectrum method, and a comparative analysis with a simplified mechanical model with no swinging effect was applied.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Cui, L. (2012), "Base isolation and sloshing control of large-scale LNG storage tanks", Dalian Maritime University, 27-36. (in Chinese)
  2. Hao, J., Sun, J., Liu, Y. et al. (2014), "Seismic isolation design of 150000 m3 tank pile foundation", Earthq. Eng. Eng. Vib., 34(2), 233-239. (in Chinese)
  3. Haroun, M.A. (1992), "Parametric study of seismic soil- tank interaction. I: horizontal excitation", J. Eng. Mech., ASCE, 118(3), 783-797.
  4. Ito, T., Morita, H., Hamada, K., Sugiyama, A., Kawamoto, Y., Ogo, H. and Shirai, E. (2003), "Investigation on bucking behavior of cylindrical liquid storage tanks under seismic excitation: 1st report-Investigation on elephant foot bulge", ASME 2003 Pressure Vessels and Piping Conference, American Society of Mechanical Engineers.
  5. Kapogiannis, I.A. and Spiliopoulos, K.V. (2015), "Performance criteria for liquid storage tanks and piping systems subjected to seismic loading", J. Press. Ves. Technol., 139(5), 051801 https://doi.org/10.1115/1.4036916
  6. Moeindarbari, H., Malekzadeh, M. and Taghikhany, 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
  7. National Standards of the People's Republic of China (2010), Code for Seismic Design of Buildings, China Architecture and Building Press, Beijing. (in Chinese)
  8. National Standards of the People's Republic of China (2012), Code for Seismic Design of Petrochemical Steel Facilities, China Planning Press, Beijing. (in Chinese)
  9. Niigata Earthquake Investigation Committee of Civil Society (1966), Investigation Report on the Earthquake in Niigata, Tokyo, Niigata Earthquake Investigation Committee of Civil Society. (in Japanese)
  10. Saha, S.K., Matsagar, V.A. and Jain, A.K. (2015), "Reviewing dynamic analysis of base-isolated cylindrical liquid storage tanks under near-fault earthquakes", IES J. Part A: Civil Struct. Eng., 8(1), 41-61. https://doi.org/10.1080/19373260.2014.979518
  11. Saha, S.K., Matsagar, V.A. and Jain, A.K. (2016), "Seismic fragility of base-isolated water storage tanks under non-stationary earthquakes", Bull. Earthq. Eng., 14(4), 1153-1175. https://doi.org/10.1007/s10518-016-9874-y
  12. Seleemah, A.A. and El-Sharkawy, M. (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
  13. Seleemah, A.A. and El-Sharkawy, M. (2011), "Seismic response of base isolated liquid storage ground tanks", Ain Shams Eng. J., 2(1), 33-42. https://doi.org/10.1016/j.asej.2011.05.001
  14. Sun, J. (2009), Isolation of Large Vertical Storage Tank-Theory, Method, Test, Science Press, Beijing. (in Chinese)
  15. Sun, J. (2012), "Study of some problems on dynamic response of stand storage tanks", Harbin Engineering University. (in Chinese)
  16. Sun, J., Cui, L. and Zheng, J. (2005), "Seismic response of large-scale full capacity LNG storage tanks with base isolation", J. Harbin Inst. Technol., 37(5), 649-651. (in Chinese) https://doi.org/10.3321/j.issn:0367-6234.2005.05.021
  17. Sun, J., Cui, L., Hao, J. et al. (2013), "The simplified mechanical model and the seismic response for isolation tank with floating roof", J. Harbin Inst. Technol., 45(10), 118-122. (in Chinese)
  18. Sun, J., Cui, L., Zhang, Y. et al. (2010), "Research on seismic responses of storage-tanks considering soil-structure interaction", Earthq. Eng. Eng. Vib., 30(3), 141-146. (in Chinese)
  19. Sun, J., Hao, J. and Wang, Z. (2005), "Research on the calculation of the mode analysis response spectrum of the seismic base isolation steel storage tank", J. Harbin Inst. Technol., 37(5), 649-651. (in Chinese) https://doi.org/10.3321/j.issn:0367-6234.2005.05.021
  20. Sun, J., Wang, X. and Zhao, C. (2010), "Base theory of seismic isolation of the storage tanks", J. Harbin Inst. Technol., 42(4), 639-643. (in Chinese)
  21. Sun, Y., Sun, J., Cui, L. et al. (2011), "Numerical research on large base isolation vertical storage tanks with floating roof", Word Earthq. Eng., 27(3), 121-123. (in Chinese)