Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Sensitivity analysis for seismic response of a ship-block system

  • Received : 2005.01.28
  • Accepted : 2006.02.02
  • Published : 2006.06.20
⟨ Previous Next ⟩

Abstract

In this paper, seismic response of a free-standing ship located in a dry dock and supported by an arrangement of n keel blocks due to base excitation is addressed. Formulation of the problem including derivation of governing equations in various modes of motion as well as transition conditions from one mode to another is given in Moghaddasi and Bargi (2006) by same authors. On the base of numerical solution for presented formulation, several numbers of analyses are conducted to study sensitivity of system's responses to some major contributing parameters. These parameters include friction coefficients between contacting surfaces, block dimensions, peak ground acceleration, and the magnitude of vertical ground acceleration. Finally, performance of a system with usual parameters normally encountered in design is investigated.

Keywords

References

  1. Allen, R.H., Oppenheim, I.J., Parker, A.R. and Bielak, J. (1986), ' On the dynamic response of rigid body assemblies ', Earthq. Eng. Struct. Dyn., 14, 861-876 https://doi.org/10.1002/eqe.4290140604
  2. Den Hartog, J.P. (1985), Mechanical Vibrations, Dover Publications
  3. Garcia, D. Lopez and Soong,T.T. (2003), ' Sliding fragility of block-type non-structural components, Part I: Unrestrained components ', Earthq. Eng. Struct. Dyn., 32, 111-129 https://doi.org/10.1002/eqe.217
  4. Garcia, D. Lopez and Soong,T.T. (2003), ' Sliding fragility of block-type non-structural components. Part II: Restrained components ', Earthq. Eng. Struct. Dyn., 32, 131-149 https://doi.org/10.1002/eqe.218
  5. Harry, W. Shenton III and Nicholas, P. Jones (1991),' Base excitation of rigid bodies, I: Formulation ', J. Eng. Mech., 117(10), 2286-2305 https://doi.org/10.1061/(ASCE)0733-9399(1991)117:10(2286)
  6. Harry, W. Shenton III and Nicholas, P. Jones (1991), ' Base excitation of rigid bodies, II: Periodic slide-rock response ', J. Eng. Mech., 117(10), 2306-2328
  7. Harry, W. Shenton III (1996), ' Criteria for initiation of slide, rock and slide-rock rigid-body modes ', J. Eng. Mech., 122(7), 690-693 https://doi.org/10.1061/(ASCE)0733-9399(1996)122:7(690)
  8. Housner, George W. (1963), ' The behavior of inverted pendulum structures during earthquake ', Bulletin of the Seismological Society of America, 53(2), 403-417
  9. Ikushima, T. and Nakazawa, T. (1979), ' A seismic analysis method for a block column gas- cooled reactor core ', Nuclear Engineering and Design, 55(3), 331-342 https://doi.org/10.1016/0029-5493(79)90112-2
  10. Lee, T.H. (1975), ' Nonlinear dynamic analysis of a stacked fuel column subjected to boundary motion ', Nuclear Engineering and Design, 32(3), 337-350 https://doi.org/10.1016/0029-5493(75)90104-1
  11. Makris, N. and Roussos, Y. (2000), ' Rocking response of rigid blocks and near-source ground motions ', Geotenique, 50(3), 243-262 https://doi.org/10.1680/geot.2000.50.3.243
  12. Moghaddasi, Masoud and Bargi, Khosrow (2006),' Formulation for seismic response of a ship-block system ', Struct. Eng. Mech., 23(3), 293-308 https://doi.org/10.12989/sem.2006.23.3.293
  13. Osinski, Z. (1998), Damping of Vibrations. Aa Balkema
  14. Pompei, A., Scalia, A. and Sumbatyan, M.A. (1998), ' Dynamics of rigid block due to horizontal ground motion ', J. Eng. Mech., 124(7), 713-717 https://doi.org/10.1061/(ASCE)0733-9399(1998)124:7(713)
  15. Psycharis, N. (1999), ' Dynamic behavior of rocking two-block assemblies ', Earthq. Engng. Struct. Dyn., 19, 555-575 https://doi.org/10.1002/eqe.4290190407
  16. Rabbat, B.G. and Russell, H.G. (1985), ' Friction coefficient of steel on concrete or grout ', J. Struct. Eng., 111(3), 505-515 https://doi.org/10.1061/(ASCE)0733-9445(1985)111:3(505)
  17. Scalia, Antonio and Sumbatyan, Mezhlum A. (1996),' Slide rotation of rigid bodies subjected to a horizontal ground motion ', Earthq. Engng. Struct. Dyn., 25, 1139-1149 https://doi.org/10.1002/(SICI)1096-9845(199610)25:10<1139::AID-EQE606>3.0.CO;2-S
  18. Spanos, Pol D., Roussis, Panayiotis C. and Politis, Nikolaos P.A .(2001), 'Dynamic analysis of stacked rigid blocks ', Soil Dyn. Earthq. Eng., 21, 559-578 https://doi.org/10.1016/S0267-7261(01)00038-0
  19. Taniguchi, Tomoyo, Mentani, Yukio, Komori, Hiroharu and Yashihara, Takeo (1998), ' Governing equation of slip of flat bottom cylindrical shell tank without anchor and uplifting of bottom plate ', Seismic Engineering, PVP-364, 55-61
  20. Taniguchi, Tomoyo (2002), ' Non-linear response analysis of rectangular rigid bodies subjected to horizontal and vertical ground motion ', Earthq. Eng. Struct. Dyn., 31(8), 1481-1500 https://doi.org/10.1002/eqe.170
  21. Yim, Chik-Sing, Chopra, Anil K. and Penzien, Joseph (1980),' Rocking response of rigid blocks to earthquakes ', Earthq. Engng. Struct. Dyn., 31, 565-587
  22. Younis, Christos J. and Tadjbakhsh, Iradj G. (1984), 'Response of sliding rigid structure to base excitation ', J. Eng. Mech., 110(3), 417-432 https://doi.org/10.1061/(ASCE)0733-9399(1984)110:3(417)
  23. Zhang, Jian and Makris, Nicos (2001), ' Rocking response of free-standing blocks under cyclonical pulses ', J. Eng. Mech., 127(5), 473-483 https://doi.org/10.1061/(ASCE)0733-9399(2001)127:5(473)
  24. Zhong, Jian and Makris, Nicos (2001), ' Rocking response of anchored blocks under pulse-type motion ', J. Eng. Mech., 127(5), 484-493 https://doi.org/10.1061/(ASCE)0733-9399(2001)127:5(484)

Cited by

  1. Sensitivity analysis of responses for vibration control systems vol.35, pp.6, 2010, https://doi.org/10.12989/sem.2010.35.6.791