STRUCTURAL MODELING TECHNIQUES FOR CONCRETE SLAB AND GIRDER BRIDGES

DETAILED PRODECURES FOR FABRICATING, INSTRUMENTING, AND LOADING APPROXIMATELY 1/6-SCALE REINFORCED MICRO-CONCRETE "DIRECT MODELS" OF A TYPICAL PAN-FORMED CONCRETE SLAB AND GIRDER BRIDGE SYSTEM ARE PRESENTED. THE METHODS RELY ON ACHIEVEMENT OF A HIGH DEGREE OF MATERIAL SIMILARITY BETWEEN PROTOTYPE AND MODEL TO PERMIT OBSERVATION OF REALISTIC BEHAVIOR AT SERVICE LOAD, MODERATE OVERLOAD, AND ULTIMATE LOAD LEVELS. THE REPORT DESCRIBES TECHNIQUES UTILIZED IN A REASONABLY SUCCESSFUL STUDY AND PROVIDES COMPARISONS BETWEEN MODEL AND PROTOTYPE BEHAVIOR. THE TECHNIQUES USED RESULTED IN MODELS IN WHICH THE OBSERVED LOAD DISTRIBUTION EXHIBITED A HIGH DEGREE OF CORRELATION WITH THE PROTOTYPE FIELD TEST OBSERVATIONS. IN ADDITION, THE ULTIMATE LOADS OF REDUCED (STATICALLY DETERMINATE) SECTIONS WERE IN CLOSE AGREEMENT WITH ACCEPTED ULTIMATE STRENGTH THEORY. USE OF SIMILAR "DIRECT MODEL" TECHNIQUES IN FUTURE INVESTIGATIONS IS RECOMMENDED. /AUTHOR/

• Supplemental Notes:
  • Rr 94-1, 84 PP, 45 FIG, 1 TAB, 15 REF, 1 APP
• Corporate Authors:

  University of Texas, Austin

  Center for Highway Research, 200 West 21st Street
  Austin, TX  United States  78712
• Authors:
  • Leyendecker, E V
  • Breen, J E
• Publication Date: 1968-8

Subject/Index Terms

• TRT Terms: Breaking loads; Girder bridges; Load transfer; Prototype tests; Reinforced concrete; Slabs; Structural models; Ultimate strength
• Uncontrolled Terms: Model tests
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209123
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 9 1970 12:00AM