THE ANALYTICAL AND EXPERIMENTAL STUDY OF A SIMPLE GIRDER

FIELD TESTS ON GIRDER SLAB BRIDGES IN MARYLAND WERE CONDUCTED BY PLACING THE TEST VEHICLE ON THE BRIDGE AT VARIOUS POSITIONS AND TAKING READINGS WITH THE AUTOMATIC STRAIN RECORDING EQUIPMENT. ONLY STATIC TRUCK LOADINGS ARE DESCRIBED. A DEFINITE DIFFERENCE ANALYTICAL TECHNIQUE IS PRESENTED WHICH MAY BE USED TO PREDICT THE ACTUAL STRAINS AND DEFLECTIONS IN A SIMPLE GIRDER SLAB BRIDGE. IT WAS DETERMINED THAT THE ADAPTATION OF THE NEW MOTOR VEHICLE CODE TRUCK LOADINGS PRODUCES NO ADVERSE AFFECT ON THE STRUCTURAL BEHAVIOR OF A GIRDER BRIDGE. THE FACTOR OF SAFETY OF THE GIRDERS, WHEN SUBJECTED TO ONE STATIC TRUCK LOADING, IS 1.60. WHEN THE BRIDGE IS SUBJECTED TO TWO STATIC TRUCK LOADINGS, THE FACTOR OF SAFETY IS 1.40. NO CONCLUSIONS ARE MADE CONCERNING THE EFFECT ON THE SLAB BY THE NEW CODE.

• Supplemental Notes:
  • Prog. Rpt., PP 1-183, 91 FIG, 7 TAB, 8 REF, 2 APP
• Corporate Authors:

  University of Maryland, College Park

  Department of Agricultural and Resource Economics
  College Park, MD  United States  20742
• Authors:
  • Sartwell, A D
  • Heins, C P
  • Looney, C T
• Publication Date: 1968-2

Subject/Index Terms

• TRT Terms: Deflection; Field tests; Finite differences; Girder bridges; Mathematical analysis; Recording instruments; Slabs; Static loads; Strain (Mechanics); Strain measurement; Structural analysis; Structural mechanics; Trucks
• Uncontrolled Terms: Structural behavior
• Old TRIS Terms: Strains
• Subject Areas: Bridges and other structures; Highways; Motor Carriers;

Filing Info

• Accession Number: 00208482
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM