THE BEHAVIOR OF A CURVED BOX BEAM MODEL BRIDGE

TESTING OF A SMALL PLEXIGLAS CURVED BOX BEAM MODEL BRIDGE IS DESCRIBED. THE MODEL CONSISTED OF A THREE CELL UNIT WITH A COMMON TOP PLATE ELEMENT. THE MODEL WAS TESTED AS A SINGLE SPAN AND A TWO-SPAN STRUCTURE. STRAIN, DEFLECTION, AND ROTATION MEASUREMENTS WERE TAKEN. A SERIES OF STIFFNESS MODELS WERE ALSO FABRICATED AND TESTED IN ORDER TO DETERMINE THE STIFFNESS PROPERTIES. THE RESULTING EXPERIMENTAL DATA WAS COMPARED WITH ANALYTICAL DATA. THE ANALYTICAL DATA WAS OBTAINED FROM A SERIES OF COMPUTER PROGRAMS INCORPORATING THE SLOPE DEFLECTION THEORY. IT IS CONCLUDED THAT THE SLOPE DEFLECTION METHOD PROVIDES A USEFUL TECHNIQUE IN THE ANALYSIS OF BOX BEAM MODELS. THE USE OF SINGLE BOX SECTION PROPERTIES, CONSIDERING ONLY BENDING AND ST. VENANT TORSIONAL PROPERTIES, PROVIDES GOOD RESULTS. /AUTHOR/

• Supplemental Notes:
  • Aw-70-85-46, HPR-1(5)
• Corporate Authors:

  University of Maryland, College Park

  Department of Agricultural and Resource Economics
  College Park, MD  United States  20742

  Maryland Department of Transportation

  2323 West Joppa Road
  Brooklandville, MD  United States  21022

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bonakdarpour, B
  • Bell, L C
  • Heins, C P
• Publication Date: 1970-6

Subject/Index Terms

• TRT Terms: Box beams; Bridges; Computer programs; Curves (Geometry); Deflection; Mathematical models; Rotation; Slopes; Stiffness; Strain (Mechanics)
• Uncontrolled Terms: Models
• Old TRIS Terms: Stiffness methods (Structural); Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00207972
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT, STATEDOT
• Created Date: Nov 18 1970 12:00AM