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Homework Help: Fixed support means dv/dx=0?

  1. Mar 15, 2013 #1
    I've just started to learn about how to solve statically indeterminate problems and I just want to check my understanding. If I've got a fixed support at x=0 then does that mean
    [itex]\frac{dv}{dx}[/itex]=0, where x is distance along beam and v is deflection?

    As in the picture here,
  2. jcsd
  3. Mar 15, 2013 #2
    Thanks all but I've got an answer to this. dv/dx = 0 is right.
  4. Mar 15, 2013 #3
    Only if the beam is cantilevered (built into the wall to prevent rotation). If that's what you mean by a fixed support, then yes. If the beam is supported at x = 0 by a support that allows it to swivel, then no. According to your picture, the beam looks cantilevered.
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