By American Petroleum Institute
Read or Download API RP 2A- WSD Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms—Working Stress Design PDF
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Additional resources for API RP 2A- WSD Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms—Working Stress Design
Sample text
The magnitudes for other directions are obtained by multiplying the surface current value by the same factors that are used to define wave heights by direction. , depth less than 300 ft. and greater than 150 ft. The currents associated with each wave direction for a given water depth in this zone are obtained by linear interpolation of the currents for depths of 150 ft. and 300 ft. For each wave direction the interpolation should be done on both the inline and the transverse component. The end result will be an associated current vector for each wave direction.
Associated wind speed. For locations affected by strong tidal and/or general circulation currents, such as the Loop current and its associated detached eddies, special metocean criteria need to be defined to take into account the possibility of large forces caused by a combination of extreme currents and smaller (than the 100year hurricane wave) waves. 4 to result in a guideline design level of total base shear and overturning moment on a structure. 4-2). In this area the guidelines may not apply because the Delta may block waves from some directions, and there are some very soft seafloor areas that may partially absorb waves.
The currents associated with each wave direction for a given water depth in this zone are obtained by linear interpolation of the currents for depths of 150 ft. and 300 ft. For each wave direction the interpolation should be done on both the inline and the transverse component. The end result will be an associated current vector for each wave direction. 2 knots. 2 knots for calculating design guideline forces. 4-6. The storm water level (swl) is the 0-ft. level. The profile for shallower water depths should be developed by truncating the bottom part of the profile.