COMPOSITE BEAM INCORPORATING CELLULAR STEEL DECKING

RESULTS OF A TEST ON A COMPOSITE STEEL AND CONCRETE BEAM INCORPORATING A CELLULAR STEEL DECK ARE REPORTED. GOOD AGREEMENT BETWEEN MEASURED AND COMPUTED VALUES OF STRAIN AND DEFLECTION IS INDICATED PRIOR TO FIRST YIELDING. THE BEAM BEHAVED IN ACCORDANCE WITH THE ELASTIC THEORY FOR COMPOSITE BEAMS WITH INCOMPLETE INTERACTION. THE LOAD-SLIP CHARACTERISTICS FOR THE END CONNECTIONS WAS DETERMINED FROM THE BEAM TEST RESULTS. THE MAXIMUM STRENGTH OF A CONNECTION COMPUTED FROM THE MEASURED LOAD AND END SLIPS IN THE ELASTIC RANGE HAS BEEN USED TO ESTIMATE THE ULTIMATE STRENGTH OF THE BEAM. ELASTIC THEORY PREDICTION OF MAJOR BREAKDOWN OF INTERACTION UNDER THE LOAD-POINTS OF A BEAM WITH SYMMETRICAL TWO POINT LOAD SYSTEM WAS CONFIRMED IN THE TEST WHEN THE EXTREME FIBER STRAINS IN THE STEEL AND CONCRETE AT THE LOAD POINTS EXCEEDED THOSE AT MID-SPAN IN THE ELASTIC RANGE. AT MAXIMUM LOAD TWO HINGES FORMED AT THE LOAD POINTS. IT IS SHOWN HOW EFFICIENCY FACTORS FOR FLEXURAL STRESS AND DEFLECTION CAN BE DERIVED. /ASCE/

• Supplemental Notes:
  • Vol 95, No ST3, PROC PAPER 6447, PP 355-380, 19 FIG, 7 REF,
• Authors:
  • ROBINSON, H
• Publication Date: 1969-3

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Beams; Bridge decks; Cellular structures; Composite materials; Concrete tests; Deflection; Elastic analysis; Elasticity (Mechanics); Fasteners; Flexural strength; Shear reinforcement; Steel structures; Strain (Mechanics); Structural tests; T beams
• Uncontrolled Terms: Composite beams; Shear connectors
• Old TRIS Terms: Elastic analysis (Structural); Elastic theory; Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208982
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 28 1994 12:00AM