(DNV) Deck Girder Design question

Discussion in 'Class Societies' started by squivo, May 30, 2007.

  1. squivo
    Joined: Mar 2006
    Posts: 7
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    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
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    Location: Norway

    StianM Senior Member

    I think you would be able to find all the information on the DNV homepage www.dnv.no

    I did drav some side web and deck grider befour, but I think that was ABS class. I could draw a grider for you as a exsample if you would like.
     
  3. squivo
    Joined: Mar 2006
    Posts: 7
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    Location: Brazil

    squivo Junior Member

    Thanks, but the website couldn't help me with my question. I wouldn't have many use to an aleatory girder design, because I need it according to the DNV rules I specified. Thanks anyway.
     

  4. Dutch Peter
    Joined: Aug 2004
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    Location: The Netherlands

    Dutch Peter Senior Member

    s is normally frame spacing, S the spacing between primary structures and b breadth. Is there not a section with the definitions?
     
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