A simply supported beam has 2 equal point loads (W/2)

  • Thread starter SarahM1980
  • Start date
  • #1
I have a simply supported beam 1.2m long
it has 2 = point loads (W/2) at equal distances (0.4m) along the beam
i have been asked to derive from first principles the expression for the mid span defelction.
I have got so far m= W/2x - W/2(x-L3) - W/2(x-L/6)
and i think the answer i'm looking for is something like 23WL 3 / 1296EI


can anyone help!
 

Answers and Replies

  • #2
radou
Homework Helper
3,115
6
You can either use the equation w''(x) = M(x) / EI , or a dummy force method (which I personally prefer more).
 

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