Truss - find internal force in each member

  1. 1. The problem statement, all variables and given/known data

    please see the image, I am supposed to find the internal force in each member of the truss and state if its in compression or tension


    2. Relevant equations



    3. The attempt at a solution
    here is what I have so far (all in kN)....
    My=40 up
    Gy=80 up
    Mx=0
    from joint G
    Tga=100 in compression
    Tgh=60 in tension
    from joint A
    Tah=90 in compression
    Tab=80 in tension
    from joint H
    Thb=162.5 in tension
    Thj=157.5 in compression
    from joint J
    Tjb=20 in tension
    Tjk=157.5 in tension
    from joint B
    Tbk=162.5 in tension
    Tbc=80 in compression
    from joint K
    Tkl=255 in compression

    I stopped here, I feel I've done something wrong, can someone let me know if I'm doing something wrong.....thanks
     

    Attached Files:

  2. jcsd
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