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Help with shear force diagram

  1. May 26, 2012 #1
    I have drawn the following shear force diagram however it says it is wrong. Could somebody please explain to me what is wrong with it. The points in the diagram are 0 then -4 then 1.25 then 1.25, then back to 0.
     

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  2. jcsd
  3. May 26, 2012 #2

    PhanthomJay

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    Looks good to me, I don't see anything wrong with it.
     
  4. May 26, 2012 #3
    thanks, that is what i thought. It must be the way i have entered it in or something, i am going to try it again
     
  5. May 26, 2012 #4
    it turns out there had to be another line of discontinuity (blue line) at 12 metres which seems rather pointless
     
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