Crack Opening Behavior of Concrete Reinforced with High Strength Reinforcing Steel

A major difference between high-strength reinforcing steel and conventional steel in concrete is that the service-load steel stress is expected to be greater. Consequently, the service-load steel strains are greater affecting cracking behavior. A parametric study investigating crack widths and patterns in reinforced concrete prisms is presented in order to establish limits to the service-load steel stress and strain. Additionally, based on the results of available flexural tests, crack widths at service load levels were evaluated and found to be within presently accepted limits for highway bridge structures, and were predictable using current AASHTO provisions. A limitation on service-level stresses of fs  ≤ 414 MPa (60 ksi) is nonetheless recommended.

Language

  • English

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Filing Info

  • Accession Number: 01600821
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 23 2016 11:02AM