SLAB BEHAVIOR OF A PRESTRESSED CONCRETE BOX-BEAMS BRIDGE- HAZELTON BRIDGE

PART OF THE FIELD TESTING IS DESRIBED OF A BEAM-SLAB TYPE HIGHWAY BRIDGE CONSTRUCTED WITH PRESTRESSED CONCRETE BOX GIRDERS, AND SUBJECTED TO LOADING WITH A TEST VEHICLE APPROXIMATING AASHO HS 20-44 LOADING. THE OVERALL INVESTIGATION INCLUDES STUDIES OF THE BEHAVIOR OF THE SLAB, AND OF LATERAL DISTRIBUTION OF THE VEHICLE LOADING. THE PURPOSE IS TO DESCRIBE THE EXPERIMENTAL INVESTIGATION PERFORMED ON THE BRIDGE SLAB. THE TESTING CONSISTED OF THE CONTINUOUS RECORDING OF SALB SURFACE STRAINS AT VARIOUS LOCATIONS AS THE TEST VEHICLE WAS DRIVEN OVER THE SPAN AT VARIOUS SPEEDS. INVESTIGATIONS ARE INCLUDED ON THE LATERAL DISTRIBUTION OF STRAINS AND STRESSES IN THE SLAB, THE EFFECT OF SPEED ON STRESSES, AND LOCAL WHEEL LOAD EFFECTS. FINALLY, A COMPARISON OF MOMENTS OBTAINED EXPERIMENTALLY WITH THE DESIGN MOMENT SPECIFIED BY AASHO IS GIVEN. /AUTHOR/

• Corporate Authors:

  Lehigh University

  Bethlehem, PA  United States  18015

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Pennsylvania Department of Transportation

  1215 Transportation and Safety Building
  Harrisburg, PA  United States  17120
• Authors:
  • WEGMULLER, A W
  • Van, HORN DA
  • Cordoba, G C
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Box beams; Box girders; Concrete; Engineering moments; Highway bridges; Prestressed concrete; Slabs; Speed; Strain (Mechanics); Stresses; Wheel loads
• Old TRIS Terms: Concrete box girders; Moments; Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208011
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: 68-27
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jan 31 1972 12:00AM