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1 results

  • 4 - Statical (In)determinacy in Trusses

  • from Part II - Truss Frameworks
  • Keith Alexander Seffen, University of Cambridge
  • Book:
    Solving Problems of Simple Structural Mechanics
    Published online:
    06 January 2022
    Print publication:
    20 January 2022, pp 31-36

  • Summary

    Maxwell's Rule conveys a statement of rigidity for a given truss framework. When the number of bars or supports is reduced, the truss will inevitably lose rigidity and collapse as a mechanism. This consequence can also be captured by Maxwell's Rule in a modified statement, which leads to a discussion about its interplay with states of self-stress, illustrated using the simplest pin-jointed arch.