Dynamic effects of wind loads on offshore deck structures — A critical evaluation of provisions and practices

Abstract Walk-ways, flare-outs, silos, cranes, heli-pad structures, ladders, rig-supporting derrick structures, living quarters, worksheds, claddings of module supporting frames (MSF), and boat landings are some of the major components of offshore deck structures. These deck structures are designed for operational and extreme wind and wave, and impact loads. This paper presents a review of published literature on wind loading conditions on the structure, extreme wind loading, wind tunnel tests on decks of compliant as well as fixed platforms and full-scale measurements on offshore decks. The paper also presents a study of vibration modes of typical derrick and inclined boom with respect to possible dynamic sensitivity to wind induced excitations. The scarcity of field measured data and the necessity of instrumenting offshore deck structures for collection of scarce data on wind and structural response characteristics are also highlighted.

[1]  Ahsan Kareem,et al.  Stochastic response of tension leg platforms to wind and wave fields , 1990 .

[2]  Ashan Kareem,et al.  Wind‐Induced Response Analysis of Tension Leg Platforms , 1985 .

[3]  Kirkvik A STUDY OF WIND INDUCED VIBRATIONS , 1992 .

[4]  T. C. Bauer,et al.  AERODYNAMIC AND HYDRODYNAMIC MODEL TESTS OF THE ENSERCH GARDEN BANKS FLOATING PRODUCTION FACILITY , 1995 .

[5]  Hans Rolfsman,et al.  Wind Forces on a Semisubmersible Equipped With Alternative Drilling Derricks , 1983 .

[6]  B. J. Vickery,et al.  DYNAMIC RESPONSE OF A COMPLIANT TOWER IN WIND AND WAVES , 1995 .

[7]  Ahsan Kareem,et al.  Dynamic Effects of Wind on Tension Leg Platforms , 1982 .

[8]  Alaa E. Mansour,et al.  DYNAMIC RANDOM ANALYSIS OF FIXED OFFSHORE PLATFORMS , 1974 .

[9]  Gusella,et al.  DYNAMIC BEHAVIOUR OF DRILLING DERRICK ON STEEL JACKET PLATFORM: COMPARISON BETWEEN NUMERICAL AND EXPERIMENTAL RESULTS , 1992 .

[10]  Christian Aage,et al.  Wind Loads on Ships and Offshore Structures Estimated by CFD , 1997 .

[11]  Erik Holter,et al.  INTEGRATED AND SEMI-INTEGRATED DECK CONCEPTS FOR PRODUCTION PLATFORMS WITH EMPHASIS ON CAPITAL COST OPTIMIZATION , 1976 .

[12]  Egon T.D. Bjerregaard,et al.  Wind Overturning Effects Obtained From Wind Tunnel Tests With Various Semisubmersible Models , 1981 .

[13]  Ahsan Kareem Dynamic Effects of Wind on Offshore Structures , 1980 .

[14]  N. Lakshmanan,et al.  Wind, terrain and structural damping characteristics under tropical cyclone conditions , 1999 .

[15]  J. Kim Vandiver,et al.  A Procedure for Predicting the Fatigue Damage of Structural Members in Unsteady Winds , 1996 .

[16]  Susan L. Bales,et al.  Effect Of Various Spectral Formulations In Predicting Responses Of Marine Vehicles And Ocean Structures , 1977 .

[17]  Jan Inge Dalane,et al.  Requalification of an Unmanned Jacket Structure Using Reliability Methods , 1995 .

[18]  B. J. Vickery,et al.  An Investigation of Dynamic Wind Loads on Offshore Platforms , 1985 .

[19]  Ahsan Kareem,et al.  Aerodynamic loads on a typical tension leg platform , 1987 .

[20]  G. E. Deleuil,et al.  Long Term Response Of Articulated Towers To Wind, Waves And Current , 1978 .

[21]  H. Boonstra,et al.  Wind-Tunnel Tests on a Model of a Semisubmersible Platform and Comparison of the Results With Full-Scale Data , 1982 .

[22]  Ahsan Kareem,et al.  Performance of Offshore Platforms in Hurricane Andrew , 1994 .

[23]  Demirtas C. Bayar Drag Coefficients of Latticed Towers , 1986 .

[24]  Nils Spidsøe,et al.  Measured Motions of a North Sea Articulated Loading Platform , 1983 .

[25]  Qi,et al.  EXPERIMENTAL STUDY ON BEHAVIOUR OF AN OPEN BOTTOM FLOATING PLATFORM IN WAVE, WIND AND CURRENT , 1994 .

[26]  E. G. Ward,et al.  Ocean Data Gathering Program - Quality and Reduction of Data , 1976 .

[27]  B. J. Vickery,et al.  A Wind-Tunnel Investigation of Loads and Pressures on a Typical Guyed Tower Offshore Platform , 1982 .

[28]  G. Clauss,et al.  Marine Structural Analysis , 1994 .

[29]  T S Lee,et al.  Wind Effects On Offshore Platforms:A Wind Tunnel Model Study , 1993 .

[30]  A. Kareem,et al.  Response of Tension Leg Platforms to Wind, Waves, and Currents: A Frequency Domain Approach , 1990 .

[31]  David J. Norton,et al.  Mobile Offshore Platform Wind Loads , 1981 .

[32]  C. Brebbia,et al.  Dynamic analysis of offshore structures , 1979 .