Guidelines for Analyzing the Capacity of D-Regions with Premature Concrete Deterioration of ASR/DEF

When a bridge engineer encounters a design or analysis problem concerning a bridge substructure, that structure will commonly have a mixture of member types, some slender, and some squat. When the structure possesses a mixture of beam (B-) regions and deep or disturbed (D-) regions the dilemma facing the structural engineer is: What method should one use for structural analysis and design? The issue becomes even more murky when a structure already exists, but shows signs of damage and deterioration from the effects of Alkali Silica Reaction (ASR), Delayed Ettringite Formation (DEF), or other deterioration mechanisms. The engineer is faced with a second dilemma: How do deteriorated material properties get incorporated into the analysis? This report includes guidelines for determining the capacity of D-regions without and with premature concrete deterioration, in particular ASR and DEF effects. Beam theory, strut-and-tie analysis, and a compatibility strut-and-tie model are presented.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 176p

Subject/Index Terms

Filing Info

  • Accession Number: 01567479
  • Record Type: Publication
  • Report/Paper Numbers: 0-5997-P2
  • Contract Numbers: 0-5997
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: May 12 2015 11:57AM