STUDY OF IN-SERVICE BRIDGES CONSTRUCTED WITH PRESTRESSED PANEL SUB-DECKS

THREE PRESTRESSED CONCRETE HIGHWAY BRIDGES WHICH HAVE PRESTRESSED PANEL SUB-DECKS WERE FIELD INSPECTED AND TEST LOADED TO DETERMINE THEIR CONDITION AFTER 7 YEARS OF TRAFFIC SERVICE. CRACK PATTERNS WERE MAPPED. WITH ONLY A FEW EXCEPTIONS, THE CRACKS FOUND COINCIDED WITH THE TRANSVERSE BUTT JOINTS BETWEEN THE SUB-DECK PANELS AND EXTENDED APPROXIMATELY HALFWAY THROUGH THE CAST-IN-PLACE DECK. DELAMINATION SOUNDINGS DID NOT DETECT ANY SIGNIFICANT SEPARATION BETWEEN PRESTRESSED PANEL AND CAST-IN-PLACE DECK. CORE SAMPLES REVEALED NO BOND FAILURE BETWEEN PANEL AND CAST-IN-PLACE DECK. THE LOAD TEST AND STRAIN READINGS INDICATED CONTINUITY OF ACTION BETWEEN PRESTRESSED BEAM, PANEL AND CAST-IN-PLACE DECK. THE BRIDGES ARE IN SOUND CONDITION AND SHOW NO SIGN OF DISTRESS. /AUTHOR/

• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Furr, H L
  • Jones, H L
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Beams; Cast in place structures; Concrete; Concrete bridges; Cracking; Panels; Prestressed concrete; Prestressing
• Uncontrolled Terms: Concrete cracking
• Old TRIS Terms: Concrete bridge structures; Prestressed beams; Prestressed sub-deck panels
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 00207987
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT, STATEDOT
• Created Date: Mar 7 1971 12:00AM