oa Civil Engineer in South Africa - Teaching structural determinacy of plane frames : 'IIH' vs '2 - 3' : technical paper

Volume 33, Issue 8
  • ISSN : 0009-7845



The technical note considered a structured approach to establishing the determinacy of plane frames utilizing internal isolated hinges - hence the title IIH technique. External support conditions and the internal member arrangement of frames were considered individually and a final assessment determined by combining these separate analyses. Methods for dealing with support types, rigid joints and member location were discussed and comparisons were made with the long established 2 - 3 approach to determinacy.

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