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A problem in Truss Analysis

  1. Oct 26, 2013 #1
    1. The problem statement, all variables and given/known data
    I am required to find the thrust exerted by the hydraulic rams CG and EB. A load of weight 8 kN is placed at F vertically downwards. The system is in mechanical equilibrium. AB = BC = CD = 2m.


    2. Relevant equations
    At mechanical equilibrium [tex]\sum F_x = \sum F_y = \sum M_a = 0[/tex] (a is any arbitrary point which we take moments about).


    3. The attempt at a solution
    [tex]R(\rightarrow ): \ \sum F_x = A_x + G_x = 0[/tex]

    [tex]R(\uparrow ): \ \sum F_y = A_y + G_y - F = 0[/tex]

    Resolving clockwise:

    [tex] \ \sum M_A = -80 \times 10^4 - G_y 4 \cos{60^{\circ}} - G_x 4 \sin{60^{\circ}} = 0[/tex]

    Though I am not sure how to proceed from here. Any help is appreciated.

    EDIT: Nevermind, I have resolved the problem now.
     

    Attached Files:

    Last edited: Oct 26, 2013
  2. jcsd
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