FINAL REPORT ON EPOXY BONDED COMPOSITE T-BEAMS FOR HIGHWAY BRIDGES

RESULTS ARE REPORTED OF A FOUR-YEAR STUDY OF AN EPOXY RESIN SHEAR CONNECTOR FOR COMPOSITE T-BEAMS. THE CRITICAL SHEARING STRESSES WERE DETERMINED FOR DESIGN PURPOSES BY STATIC TESTS OF SIX T-BEAMS. THE WIDTH OF THE EPOXY LAYER WAS DESIGNED TO PRODUCE A SHEAR-BOND FAILURE BETWEEN THE EPOXY LAYER AND THE STEEL STEM BEFORE INITIAL YIELDING IN THE ROLLED SECTION OCCURRED. ONE BEAM GROUP WAS TESTED OVER CONTINUOUS SUPPORTS. OTHERS WERE TESTED AS SIMPLY SUPPORTED BEAMS. A MATHEMATICAL STUDY DESCRIBES THE WORKING LIMITS OF THE EPOXY SHEAR CONNECTOR AND VERIFIES THE VALIDITY OF ELEMENTARY BEAM THEORY FOR ANALYSIS AND DESIGN. THE ULTIMATE LOAD CAPACITIES OF THE SHEAR CONNECTOR FROM THE T-BEAM TESTS ARE COMPILED TO FORM A SAFE DESIGN SHEARING STRESS FOR THE EPOXY SHEAR CONNECTOR. DESIGN SPECIFICATIONS FOR COMPOSITE T-BEAMS USING AN EPOXY RESIN SHEAR CONNECTOR WERE PREPARED BY MODIFYING THE 1965 AASHO SPECIFICATIONS ON COMPOSITE GIRDERS.

• Supplemental Notes:
  • Rept No 12, 157 PP, 68 FIG, 6 TAB, 14 REF, 3 APP
• Corporate Authors:

  University of Arizona, Tucson

  Department of Civil Engineering
  Tucson, AZ  United States  85721-0072

  Arizona Highway Department

  1730 West Jackson Street
  Phoenix, AZ  United States  85007

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Kriegh, J D
  • Richard, R M
• Publication Date: 1966-10

Subject/Index Terms

• TRT Terms: Beams; Bonds; Breaking loads; Composite materials; Design; Epoxy resins; Fasteners; Highway bridges; Mathematical analysis; Shear reinforcement; Shear stress; Static tests; T beams
• Uncontrolled Terms: Composite beams; Design criteria; Shear connectors
• Subject Areas: Construction; Design; Highways;

Filing Info

• Accession Number: 00214746
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Jan 16 1994 12:00AM