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Symmetry and the design of self-stressed structures

Author(s): ORCID



Medium: journal article
Language(s): English
Published in: International Journal of Space Structures, , n. 4, v. 38
Page(s): 247-261
DOI: 10.1177/09560599231193724
Abstract:

The symmetry adapted counting rule for mechanisms and states of self-stress in symmetric frameworks is presented in an accessible and intuitive manner with the aim of empowering engineers who design such structures. By simply counting nodes and bars, it is possible to detect states of self-stress and mechanisms beyond the standard Maxwell-Calladine count. This methodology is first introduced without the need to understand the underlying group theory before being applied to a range of example frameworks. Design problems focusing on gridshells are discussed – it is noted that placing bars on lines of mirror symmetry tend to increase the number of states of self-stress in a framework, which can be desirable. This paper reformulates common symmetric frameworks and introduces simple rules regarding how to obtain a greater number of states of self-stress. By allowing for the design of states of self-stress, the forces in the structure can be designed with greater control.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1177/09560599231193724.
  • About this
    data sheet
  • Reference-ID
    10756331
  • Published on:
    08/01/2024
  • Last updated on:
    08/01/2024
 
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