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Recent content by London

  1. London

    Offshore grouting

    The cement is mixed offshore on the vessel. Seawater may be specified instead of freshwater for the mix. The grout is pumped into the void in a controlled manner so that raw seawater does not contaminate the grout except at the immediate interface. The pumped grout pushes out the seawater from...
  2. London

    Structural Engineering Detail Library

    I try to keep my own details and technical library. Only by organising, trimming and archiving bits and pieces do I know where to go and what to use. I find large libraries can get unwieldy and harder to use. The best details get used often and then with greater confidence.
  3. London

    R&D ideas for structural engineering

    For me, one stop shops where information from various vendors can be compared. It would be much harder to implement successfully than it first sounds, as it could easily end up as a bad advertising website. Currently, when sourcing/specifying products, I start with a vendor, then browse their...
  4. London

    MathCAD sheets for structural tools

    thread507-313250 Hi. I've been searching for a MathCAD template or two to start off my own set of calculation templates. I saw an older thread (referenced above) which had some structural design tools. I tried dredging the website but it seems to have moved on. Has anyone got a copy of these...
  5. London

    API RP 2A WSD 22nd Edition

    Thanks you for posting information, rather than a question.
  6. London

    SACS Precede- Seastate Load Generation

    To briefly add some thought here, It depends on what you are checking for. The wave generator will pass a crest and trought through the structure and pick out the selected values based on what you provide out of the criteria you describe. You might need to select both for different stability...
  7. London

    Weld joint & Temperature derating factor

    I think your post title had more information in it than the post. I think you'll have to be more detailed and specific in your request for information from the forum.
  8. London

    Minimum Umbilical J-Tube Diameter

    See if you can creat a drawing demonstrating to the installation contractor that the shackle, pulling head, and umbilical can fit around the bend of the tube. Also should check the pulling force from the winch in the inside of the bend, and that you have a place for the pulling winch. As LI...
  9. London

    Design of Fixed Steel Jacket -Legs

    The behaviour of a Jacket will change depending on the number of legs it has. The dynamics, sway, and natural frequency will change. This could be driven by the seastate, water depth and to a degree, the stiffness of the foundations (The Jacket does not stop at the mudline, but is considered...
  10. London

    DNV-OS-F101 Design and API Procurement

    Hi Delia16, Perhaps this post would get more of a response in the pipelines thread.. There are people there who would know the intricacies of validating API pipe with other industry standards. I am interested in a similar topic personally, and will let you know if I uncover any more...
  11. London

    SACS

    To answer your question, look at SACS-EDI.com, or bentley websites, there is a few tutorials there. The first reference you could look at is the Dynamics of Fixed Marine Structures, by Barltrop, to give you some idea what you are getting into. regards
  12. London

    Seismic Analysis Requirements in Areas with Low Seismic Activity

    At that range, it could be possible to justify the structure using the DLE level accelerations, and remain in the elastic zone. This is a simpler check that a plastic analysis and if this passes, a plastic analysis wouldn't be required, I imagine. This is covered in the next part in Section...
  13. London

    SACS- Wave Load Generation

    I feel like I'm on Eurovision...
  14. London

    Subsea Structures - Fishing Gear Interaction

    'Overtrawlable' is different to 'Fishing friendly' in terms of the qualifications required for an overtrawlable structures-its more onerous. Have a look at the NORSOK code listed above
  15. London

    SACS- Wave Load Generation

    You need to have a small enough step increment to provide a detailed analysis. Ive seen 5 degrees used before. You need enough steps to cover the full motion of the wave. so for 5 degrees, 72 steps minimum. The wave crest position determines where the crest is, along the 360 degrees. Ive seen...
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