Flexural Design of Fiber-Reinforced Concrete

The authors present a set of closed form equations for fiber-reinforced concrete flexural design. Based on simplified tensile and compressive constitutive response, these equations may be used in a serviceability-based criterion or limit state approach that limits the effective capacity of tensile strain. Flexural moment-curvature response generation is allowed by the equations in regard to a rectangular beam section for use in calculating structural analysis, in addition to strain softening fiber-reinforced concrete design charts. Equations are also proposed for minimum post-crack tensile strength to prevent sudden post flexural cracking failure and control crack width. The average crack width of structural members is limited by the analytical tensile strain equations proposed for serviceability. Additionally short-term deflections of structural members are determined through use of the bilinear moment-curvature model in conjunction with the geometrical relationship between deflection and curvature. The calculation steps are demonstrated through an example of a one-way slab.

  • Availability:
  • Authors:
    • Soranakom, Chote
    • Mobasher, Barzin
  • Publication Date: 2009

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01142900
  • Record Type: Publication
  • Report/Paper Numbers: 106-M52
  • Files: TRIS
  • Created Date: Oct 14 2009 4:42PM