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Homework Help: Beam Reactions Help me.

  1. Mar 14, 2010 #1
    1. The problem statement, all variables and given/known data
    Hi there! I have recently studying how to design gantry. but I got one problem about how to calculate the vertical load on the beam. can anyone help me and let me know how to find the Reactions 114kn and 183kn in the picture. and I know how to find the max bending moment using the equation. but really doesn't know how to find the 182 kn on this question. can Anyone help me. thanks. many many thanks

    the picture link https://www.physicsforums.com/showthread.php?t=386476
     
  2. jcsd
  3. Mar 14, 2010 #2

    nvn

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    Use static equilibrium (summation of vertical forces, and summation of moments about any point) to solve for the reaction forces.
     
  4. Mar 14, 2010 #3
    THX mate. I know the max bending moment 330KNm I can use Mv = 2Wv/L*(L/2_aw/4)^2+Wg*L/8. but how to find 182KNm??? thank you very much mate.
     
  5. Mar 14, 2010 #4

    nvn

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    cash168: Create a section cut at x = 7 m, and compute a summation of moment on the left or right side of the section cut to obtain the moment at the section cut.
     
  6. Mar 14, 2010 #5
    hi mate. not quite understand. can you show me , how to find the 182KNm or the 114KN Reactions . many thanks
     
  7. Mar 14, 2010 #6

    nvn

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    cash168: Study your text book and study the example problems in your text book. Show your calculations, and then someone might check your math.
     
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