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TECHNICAL PAPERS

Probabilistic Models Applicable to the Short-Term Extreme Response Analysis of Jack-Up Platforms

[+] Author and Article Information
M. J. Cassidy

Centre for Offshore Foundation Systems, The University of Western Australia, Australia

G. T. Houlsby, R. Eatock Taylor

Department of Engineering Science, Oxford University, United Kingdom

J. Offshore Mech. Arct. Eng 125(4), 249-263 (Oct 01, 2003) (15 pages) doi:10.1115/1.1600470 History: Received December 01, 2001; Revised December 01, 2002; Online October 01, 2003
Copyright © 2003 by ASME
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References

Karunakaran, D., 1993, “Nonlinear Dynamic Response and Reliability Analysis of Drag-Dominated Offshore Structures,” Dr. ing Thesis, Div. of Marine Structures, NTH, Norway.
Van de Graaf, J. W., Tromans, P. S., Vanderschuren, L., and Jukui, B. H., 1993, “Failure Probability of a Jack-Up Under Environmental Loading in the Central North-Sea,” Proc. of 4th Int. Conf. Jack-Up Platforms Design, City University, London.
Nadim,  F., and Lacasse,  S., 1992, “Probabilistic Bearing Capacity Analysis of Jack-Up Structures,” Comput. Graph. Image Process., 29(4), pp. 580–588.
Lacasse, S., and Nadim, F., 1994, “Reliability Issues and Future Challenges in Geotechnical Engineering for Offshore Structures,” 7th Int. Conf. on the Behavior of Off-Shore Structures (BOSS), M.I.T., Boston, pp. 1–30.
Hoyle, M. J. R., and Snell, R. O., 1997, “Jack-Up Sliding Probability in the Context of Current Assessment Practice,” Proc. of 6th Int. Conf. Jack-Up Platform Design, Construction and Operation, City University, London.
Frieze, P. A., Bucknell, J., Birkenshaw, M., Smith, D., and Dixon, A. T., 1995, “Fixed and Jack-Up Platforms: Basis For Reliability Assessment,” Proc. 5th Int. Conf. on Jack-Up Platform Design, Construction and Operation, City University, London.
Morandi, A. C., Frieze, P. A., Birkinshaw, M., Smith, D., and Dixon, A. T., 1997, “Reliability of Fixed and Jack-Up Structures: A Comparative Study,” Proc. of BOSS’97 Behavior of Offshore Structures, 3 , Delft University of Technology, pp. 111–126.
Health and Safety Executive (HSE), 1999, “Reliability of Fixed and Jack-Up Structures,” Offshore Technology Report—OTO 1999 035.
Daghigh, M., Hengst, S., Vrouwenvelder, A., and Boonstra, H., 1997, “System Reliability Analysis of Jack-Up Structures Under Extreme Environmental Conditions,” Proc. of BOSS’97 Behavior of Offshore Structures, 3 , Delft University of Technology, pp. 127–143.
Boon, B., Vrouwenvelder, A., Hengst, S., Boonstra, H., and Daghigh, M., 1997, “System Reliability Analysis of Jack-Up Structures: Possibilities and Frustrations,” Proc. of 6th Int. Conf. Jack-Up Platform Design, Construction and Operation, City University, London.
Cassidy, M. J., 1999, Nonlinear Analysis of Jack-Up Structures Subjected to Random Waves, D. Phil Thesis, University of Oxford.
SNAME T&R 5-5A, 1997, “Site Specific Assessment of Mobile Jack-Up Units,” 1st Edition–Rev. 1. Society of Naval Architects and Marine Engineers, New Jersey.
Martin, C. M., 1994, “Physical and Numerical Modelling of Offshore Foundations Under Combined Loads,” D.Phil. Thesis, University of Oxford.
Martin,  C. M., and Houlsby,  G. T., 2000, “Combined Loading of Spudcan Foundations on Clay: Laboratory Tests,” Geotechnique, 50(4), pp. 325–338.
Martin,  C. M., and Houlsby,  G. T., 2001, “Combined Loading of Spudcan Foundations on Clay: Numerical Modelling,” Geotechnique, 51(8), pp. 687–700.
Thompson, R. S. G., 1996, “Development of Nonlinear Numerical Models Appropriate for the Analysis of Jack-Up Units,” D. Phil. Thesis, University of Oxford.
Melchers,  R. E., 1989, “Importance Sampling in Struc. Systems,” Structural Safety, 6 , pp. 3–10.
Williams,  M. S., Thompson,  R. S. G., and Houlsby,  G. T., 1998, “Nonlinear Dynamic Analysis of Offshore Jack-Up Units,” Comput. Structures, 69(2), pp. 171–180.
Gottardi,  G., Houlsby,  G. T., and Butterfield,  R., 1999, “The Plastic Response of Circular Footings on Sand Under General Planar Loading,” Geotechnique, 49(4), pp. 453–470.
Bell, R. W., 1991, “The Analysis of Offshore Foundations Subjected to Combined Loading,” M.Sc. Thesis, University of Oxford.
Ngo-Tran, C. L., 1996, “The Analysis of Offshore Foundations Subjected to Combined Loading,” D. Phil. Thesis, University of Oxford.
Houlsby,  G. T., and Cassidy,  M. J., 2000, “A Plasticity Model for the Behavior of Footings on Sand Under Combined Loading,” Geotechnique, 52(2), pp. 117–129.
Cassidy, M. J., and Houlsby, G. T., 1999, “On the Modelling of Foundations for Jack-Up Units on Sand,” Proc. 31st Offshore Technology Conference, Houston, TX, OTC 10995.
Tromans, P. S., Anaturk, A. R., and Hagemeijer, P., 1991, “A New Model for the Kinematics of Large Ocean Waves-Applications as a Design Wave,” Proc. 1st Int. Offshore and Polar Engng Conf., Edinburgh, 3 , pp. 64–71.
Wheeler, J. D., 1970, “Method for Calculating Forces Produced by Irregular Waves,” pp. 359–367.
Thoft-Christensen, P., and Baker, M. J., 1982, Structural Reliability Theory and its Applications, Springer-Verlag New York.
Løseth, R., and Bjerager, P., 1989, Reliability of Offshore Structures With Uncertain Properties Under Multiple Load Processes. Proc. 21st Offshore Technology Conference, Houston TX, pp. 107–114, OTC 5969.
Løseth, R., and Hauge, L., 1992, “Probabilistic Methods in Calibration of Partial Safety Factors,” In Recent Developments in Jack-Up Platforms, Blackwell Scientific Publications, London, pp. 228–245.
Sigurdsson, G., Skjong, R., Skallerud, B., and Amdahl, J., 1994, “Probabilistic Collapse Analysis of Jackets,” Proc. of 13th Int. Conf. on Offshore Mechanics and Arctic Engineering (OMAE), 2 , pp. 367–379.
Kim, Y. Y., and Hibbard, H. C., 1975, “Analysis of Simultaneous Wave Force and Water Particle Velocity Measurements,” Proc. 7th Offshore Technology Conference, Houston, TX pp. 461–470, OTC 2192.
Gilbert, R. B., and Tang, W. H., 1995, “Model Uncertainty in Offshore Geotechnical Reliability,” Proc. 27th Offshore Technology Conference, Houston, TX, pp. 557–567, OTC 7757.
Myers, R. H., and Montgomery, D. C., 1995, Response Surface Methodology: Process and Product Optimization Using Designed Experiments, John Wiley & Sons, New York.
Box,  G. E., and Hunter,  J. S., 1957, “Multifactor Experimental Designs for Exploring Response Surfaces,” Ann. Math. Stat., 28, pp. 195–241.
Cassidy,  M. J., Taylor,  R. Eatock, and Houlsby,  G. T., 2001, “Analysis of Jack-Up Units Using a Constrained New Wave Methodology,” App. Ocean Research, 23, pp. 221–234.

Figures

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General layout of idealized jack-up used in the analyses
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Expansion of yield surface with plastic vertical displacement
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Strain hardening law determining yield-surface size
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NewWave surface elevation at the upwave and downwave legs
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Size of the yield surface in the M/2R:V plane
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Definition of basic random variable Pre-load
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Definition of fp (based on hardening law of Equation 8)
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Central composite design method for two random variables (k=2)
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Extreme deck displacement distributions for the most-probable highest wave amplitudes for the 100-year sea-state
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Comparison of deck displacements predicted by the RS and evaluate by JAKUP for 1000 sets of basic random variables (X)
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Comparison of response evaluated by the RS and JAKUP for 200 sets of (X) at three levels of deck displacement
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Short-term extreme deck displacement distributions for the modal most probable highest wave amplitude in the 100-year sea-state for sets of 11 and 7 random variables
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Significance of the inclusion of short-term extreme wave amplitude variation in the extreme deck displacement distributions
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Extreme deck displacement distributions for the 100-year sea-state with and without variation in the basic variables
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Comparison of linear and nonlinear response to short-term statistics

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