EMPIRICAL MODELING OF REINFORCED CONCRETE SHEAR STRENGTH SIZE EFFECT FOR MEMBERS WITHOUT STIRRUPS

The shear strength of members that do not contain stirrups shows a size effect; as the absolute depth of the member increases, the shear stress at failure decreases. This article reports on an empirical study of this size effect. The study examined 24 different size effect series of shear experiments, and curve fit parameters are calculated for three different equation formats. The authors present equations to estimate the curve fit parameters. These equations may be useful in generating design specifications that include size effect. The authors conclude that the size effect is real and shows decreasing shear stress at shear failure for larger beams that do not contain stirrups. The percentage of reinforcement and the aggregate size are important in equations that determine the shear strength of beams without stirrups.

Language

  • English

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  • Accession Number: 00987529
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 17 2005 12:00AM