CRACKING OF VOIDED POSTTENSIONED CONCRETE BRIDGE DECKS

This report examines the problem of cracking in voided, posttensioned concrete bridge decks in the Province of Ontario. The study includes: monitoring of deformations and temperature variations of a prototype bridge; acrylic modelling of two typical prototype bridges; building of an automated finite element computer program; surveying and coring a large number of bridge decks; chemical analysis for chloride content; long-term testing of voided, micro-concrete models; constructing a representative cross-sectional slice of a prototype bridge: and using rigid foams as void-formers. /RTAC/

• Corporate Authors:

  Ontario Ministry of Transportation & Communic, Can

  1201 Wilson Avenue
  Downsview, Ontario M3M 1J8,   Canada 
• Authors:
  • Csagoly, P
  • Holowka, M
• Publication Date: 1975-1

Media Info

• Features: Figures; Photos; References;
• Pagination: 49 p.

Subject/Index Terms

• TRT Terms: Bridge decks; Chemical analysis; Chloride content; Computer programs; Concrete; Cracking; Deformation; Finite element method; Microconcrete; Posttensioning; Prototypes; Temperature; Void ratios
• Uncontrolled Terms: Concrete cracking
• Old TRIS Terms: Finite elements; Void
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 00130445
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Report/Paper Numbers: RR 193 R & D Rept
• Files: TRIS
• Created Date: May 14 1976 12:00AM