Structural reliability analyses of fixed marine platforms subjected to storm wave loading are performed to assess deck elevations. Platforms are modeled as a series system consisting of the deck and jacket bays. The structural reliability analyses are carried out assuming dominant failure modes for the system components. Upper and lower bounds of the probability of failure are computed. The variation of the reliability index per bay component as a function of wave height, with a focus on those wave heights that generate forces on the deck, is analyzed. A comparison is given for the deck probability of failure and the lower bound probability of failure of the jacket in order to assess how the deck or the jacket controls the probability of failure of the system. Results are also given for reliability analyses considering different deck elevations. Finally, an analysis of the total probabilities of failure, unconditioned on wave heights, is given.
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November 2004
Technical Papers
Reliability Based Assessment of Deck Elevations for Offshore Jacket Platforms
Ernesto Heredia-Zavoni,
e-mail: eheredia@imp.mx
Ernesto Heredia-Zavoni
Instituto Mexicano del Petro´leo, Eje Central La´zaro Ca´rdenas 152, San Bartolo Atepehuacan, Me´xico DF 07730
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Dante Campos,
Dante Campos
Instituto Mexicano del Petro´leo, Eje Central La´zaro Ca´rdenas 152, San Bartolo Atepehuacan, Me´xico DF 07730
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Gallegher Ramı´rez
Gallegher Ramı´rez
Instituto Mexicano del Petro´leo, Eje Central La´zaro Ca´rdenas 152, San Bartolo Atepehuacan, Me´xico DF 07730
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Ernesto Heredia-Zavoni
Instituto Mexicano del Petro´leo, Eje Central La´zaro Ca´rdenas 152, San Bartolo Atepehuacan, Me´xico DF 07730
e-mail: eheredia@imp.mx
Dante Campos
Instituto Mexicano del Petro´leo, Eje Central La´zaro Ca´rdenas 152, San Bartolo Atepehuacan, Me´xico DF 07730
Gallegher Ramı´rez
Instituto Mexicano del Petro´leo, Eje Central La´zaro Ca´rdenas 152, San Bartolo Atepehuacan, Me´xico DF 07730
Contributed by the OOAE Division for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received September 2002; final revision, October 2003. Associate Editor: B. Leira.
J. Offshore Mech. Arct. Eng. Nov 2004, 126(4): 331-336 (6 pages)
Published Online: March 7, 2005
Article history
Received:
September 1, 2002
Revised:
October 1, 2003
Online:
March 7, 2005
Citation
Heredia-Zavoni, E., Campos , D., and Ramı´rez, G. (March 7, 2005). "Reliability Based Assessment of Deck Elevations for Offshore Jacket Platforms ." ASME. J. Offshore Mech. Arct. Eng. November 2004; 126(4): 331–336. https://doi.org/10.1115/1.1834622
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