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Moment area diagram indeterminate

  1. Aug 8, 2013 #1
    Part B the indeterminate question.

    Divided the question into 3 Parts
    Moment due to UDL

    M = 2x4x2 = 16 Kn

    EItab = Marea . Xa = 0
    16 x 4 x 1/3 x( 1/4 x 4) ( parabola)

    Due to 5kn Load

    Split it up to on rectangular and on triangular load as the 5kn load goes to 6 m and analysing for 4 m to b.

    M = 5 x 6 = 30
    30 = 6
    x = 4 therefore x = 20

    =4x20x2 + 4 x 10 x 1/2 x ( 1/3 x 4)
    =


    Due to redundant reaction By
    M = By x 4 = 4by


    = - by4 x 4 x 1/2 x (1/3 x 4)


    This gives a By of 19.49 instead of 11.125 specified in the answer sheet if added together as deflection = 0
     

    Attached Files:

  2. jcsd
  3. Aug 8, 2013 #2

    SteamKing

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    There seems to be a mismatch between your calculations and the attached diagram.
     
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