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Fixed end moments with a beam with udl

  1. Sep 18, 2011 #1
    I came across a reference where there is a beam (lets say length L)
    both ends fixed... with a UDL of say "W" per unit length.... i wanna know how the end moments are W L^2/12 ....shudnt they be W L^2/4???????


    Its pretty simple mechanics. but it got me wondering,,,,
     
  2. jcsd
  3. Sep 18, 2011 #2

    SteamKing

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    In the fixed end beam, both the slope and deflection at the ends must equal zero. In a simply supported beam, there are different end conditions and the moments are typically zero, unless there is also an applied couple.
     
  4. Sep 19, 2011 #3
    nice,,,
    i wondered if u cud provide a solution or a link to the actual stepwise solving of one...
     
  5. Sep 19, 2011 #4

    SteamKing

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    Here is an excerpt from a Schaum's Outline of Strength of Materials (prob. 11.6):

    This problem shows a beam which is partially loaded with a UDL. The technique can be used when the UDL is extended the full length of the beam.
     

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