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  1. MannoEng

    ABAQUS Civil Engineering - Geometric non-linear analysis eigenvalue error - Steel Framed Structure

    I see, then onsidering that my final objective is a 20-story building or maybe even more depending on how my tests go the wind loads will be quite considerable. If i want to test for this possibility then all i need to reverse the wind load as in adding a - in front of the load value to test...
  2. MannoEng

    ABAQUS Civil Engineering - Geometric non-linear analysis eigenvalue error - Steel Framed Structure

    About reverse loads being possible, is there a way of knowing which load is the one that can cause buckling if reversed? The loads ive applied to this model are gravity loads due to the weight of the building, accidental loads that represent people and other objects inside the building and the...
  3. MannoEng

    ABAQUS Civil Engineering - Geometric non-linear analysis eigenvalue error - Steel Framed Structure

    About the KB quote honestly im not too sure about how to check if the time average force is reasonable. I can see the time avg force at node in the message files but im not sure how to interpret this info. For example: Wjat exactly do thoses values mean and how can i know if they are...
  4. MannoEng

    ABAQUS Civil Engineering - Geometric non-linear analysis eigenvalue error - Steel Framed Structure

    Indeed the analysis completes, the iterations with negative eigenvalues all converge and the displacement results appear to make sense too, which leads me to think that the results might be correct but im not completely sure. Ive tried increasing sections, lowering the loads and even adding...
  5. MannoEng

    ABAQUS Civil Engineering - Geometric non-linear analysis eigenvalue error - Steel Framed Structure

    Hello Im a Civil Engineering student and im trying to use Abaqus to do a non-linear analysis of a 20-story building with steel frame structure, and for that im running tests with simple structures to validate my modeling method. The structure im modeling is composed of beam elements for...

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