(DNV) Deck Girder Design question

Discussion in 'Boat Design' started by squivo, May 30, 2007.

  1. squivo
    Joined: Mar 2006
    Posts: 7
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Brazil

    squivo Junior Member

    Hi all...

    I was working in a college project and I need to design the deck girder scantlings using DNV rules. But I have some doubts about it and I hope you can help me out. In Pt.3 Ch.1 Sec.8 - D 100 (Girders) - of DNV Rules, there is a statement that the thickness of girder web plates is not to be less than:
    t = 12 s + tk
    My question is: What this "s" stands for, it wasn't very clear to me on the rules. Would it be the girder transverse stiffener spacing or the deck longitudinals spacing? Or neither?

    Another question:
    In the same section, but on D200 - Simple Girders, there is the following formula for section modulus:
    Z = (100 x S^2 x b x p x wk) / sigma

    It wasn't clear to me the S and b. Could you clarify?

    Thanks a lot
  2. StianM
    Joined: May 2006
    Posts: 593
    Likes: 23, Points: 18, Legacy Rep: 114
    Location: Norway

    StianM Senior Member

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