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Method of Sections

  1. Nov 30, 2009 #1
    Is it possible to use method of sections on a frame or only on trusses? I have a frame that opposes a horizontal load and to find the forces in each member, I used method of sections. Is this right or is the only way to solve the forces is by analysis of each member.
  2. jcsd
  3. Dec 2, 2009 #2


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    When you say frame, do you mean the connection points between each member are fixed in both rotation and translation (e.g. they are moment connections)?
  4. Dec 2, 2009 #3
    Method of sections only works if your structure is entirely composed of two-force members. This also holds true for the method of joints. If your structure contains moments or the assumption of only two-force members is not valid, then neither method will work and you will need to look at more complex methods (finite element).
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