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Lifting Lugs Design

  1. Dec 13, 2011 #1
    Dear Experts,

    I have vessel with lifting lug attached to the shell.
    Vessel weight = 1681.84 N

    How to calculate:-
    1) vertical force
    2) nominal radial force
    3) horizontal force
  2. jcsd
  3. Dec 13, 2011 #2

    Simon Bridge

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    Welcome to PF.

    You need to draw a free body diagram and use trigonometry.
    The details depend on the geometry of the situation - where the lugs are fitted, how many are being used, how the cables (or whatever) are attached etc.
  4. Dec 14, 2011 #3


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    If building vessels for the US, you'll also need to comply with ASME BTH-1, "Design of Below-the-Hook Lifting Devices".
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