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Statics Problem Help

  1. Aug 17, 2013 #1
    1. The problem statement, all variables and given/known data

    Assume that each member of the truss is made of steel
    having a mass per length of 4 kg/m. Set p=0 , determine the
    force in each member, and indicate if the members are in
    tension or compression. Neglect the weight of the gusset plates
    and assume each joint is a pin. Solve the problem by assuming
    the weight of each member can be represented as a vertical
    force, half of which is applied at the end of each member.
    [Broken]

    2. Relevant equations

    Ʃm=0
    Ʃfx=0
    Ʃfy=0

    3. The attempt at a solution

    I don't really know how to start
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Aug 17, 2013 #2

    SteamKing

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    The best place to start is to read the problem statement carefully.

    There are some directions about setting up the problem. Have you followed these instructions?
    It might help you to draw a sketch of the frame as directed. Treat each of the members as a bar, and the bars are connected to each other by pins.
     
  4. Aug 17, 2013 #3
    reply

    I understand a little bit, someone told me that I have to calculate the weight of the bars first, and I don't really know how to do it, but if someone can tell me how to do that maybe I can do the problem.
     
  5. Aug 17, 2013 #4

    SteamKing

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    The bars have a mass/unit length of 4 kg/m. If a bar is 4 m long, what is its mass?
     
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