Control of Flexural Cracking in Reinforced Concrete

Most current design approaches for crack control in concrete structures fail to adequately model the increase in crack width that occurs with time due to shrinkage. This paper proposes an alternative design method for flexural crack control that overcomes many of the limitations of the current code approaches. The proposed method takes into account the time-dependent development of cracking and the increase in crack widths with time due to shrinkage. The crack width calculation procedure shows good agreement with the measured spacing and width of cracks in a variety of slabs and beams tested in the laboratory under sustained service loads. The proposed design procedure provides a rational method to control flexural cracking in reinforced concrete beams and slabs, improving the serviceability of concrete structures.

Language

  • English

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Filing Info

  • Accession Number: 01104869
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 18 2008 10:14AM