The paper develops a simple approach to compute the required bracing area by using semiempirical equations based on a series of studies on the limiting strength of one- to three-story frames with rigid and semirigid connections. The approach described involves the following: compute the relative stiffness between beam and column for each story; compute the required bracing areas for which the frame can be assumed to reach the elastic stability limit; compute the horizontal load parameters; and compute the PR (partially restrained) connection parameter. For semirigid frames the type-PR connections must provide enough moment capacity to ensure that the plastic hinges can be formed.

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  • Accession Number: 00622589
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 30 1992 12:00AM