EPOXY BONDED AGGREGATES AS A SHEAR CONNECTING MEDIUM IN COMPOSITE BEAM CONSTRUCTION

THE REPORT DESCRIBES AND PRESENTS THE RESULTS OF STATIC TESTS ON FOUR SIMPLY SUPPORTED 39 FT. COMPOSITE BEAMS. THREE OF THE BEAMS HAD HALF INCH DIAMETER AGGREGATE BONDED BY AN EPOXY TO THE TOP FLANGE TO ACT AS A SHEAR CONNECTING MEDIUM BETWEEN THE STEEL AND THE 7 IN. CONCRETE SLAB. TWO OF THESE BEAMS ALSO HAD A SMALL NUMBER OF CONVENTIONAL WELDED STUDS TO PREVENT VERTICAL SEPARATION OF SLAB AND BEAM. THE FOURTH BEAM HAD ONLY THE WELDED STUDS. THE BEAMS WERE LOADED IN INCREMENTS TO FAILURE. RELATIVE SLIP, STRAINS, AND DEFLECTIONS WERE MEASURED. SOME CORROSION OF THE TOP FLANGE WAS ATTRIBUTED TO THE EPOXY-AGGREGATE SYSTEM. IT WAS CONCLUDED THAT EPOXY BONDED AGGREGATE IS EFFECTIVE AS A SHEAR CONNECTING DEVICE UNDER STATIC LOADING. LONG TIME RELIABILITY, BEHAVIOR UNDER REPETITIVE LOADS AND THE APPARENT CORROSION PROBLEM WILL HAVE TO BE INVESTIGATED IN THE FUTURE. /BPR/

• Supplemental Notes:
  • Hpr-1/4/, D-4-6
• Corporate Authors:

  California Division Highways

  /Materials & Bridge Div
  ,   United States 
• Authors:
  • STEWART, C F
• Publication Date: 1967-1

Subject/Index Terms

• TRT Terms: Aggregates; Beams; Bonding; Composite materials; Economic efficiency; Epoxides; Failure; Fasteners; Shear reinforcement; Static loads; Static tests; Studs; Welding
• Uncontrolled Terms: Composite beams; Efficiency; Shear connectors
• Old TRIS Terms: Epoxy; Static loading
• Subject Areas: Bridges and other structures; Economics; Geotechnology; Highways;

Filing Info

• Accession Number: 00207826
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: May 18 1994 12:00AM