Review of Problem 1.1.10
    Arch 324/624, Introduction to Structural Design, University of Virginia
    Copyright © 1996-2009 Kirk Martini. Last Modified Wed, 07-Jan-2009 8:35
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    Prob 1.1.10: Non-concurrent forces

    Recall basic principles: transmissibility and parallelogram rule.

    A reasonable solution.

    An error:

    In the last step the forces were combined using tip-to-tail, rather than the parallelogram rule.

    The tip-to-tail method works only for concurrent forces. For non-concurrent forces, you need to use transmissibility, the paralleogram rule, and equivalent couples.

    Arch 324/624, Introduction to Structural Design, University of Virginia
    Copyright © 1996-2009 Kirk Martini. Last Modified Wed, 07-Jan-2009 8:35
      Table of
    Contents