FATIGUE BEHAVIOR OF HIGH STRENGTH DEFORMED BARS IN REINFORCED CONCRETE BRIDGES

RESULTS OF BENDING FATIGUE AD OTHER TESTS OF REINFORCED CONCRETE BEAMS USING VARIOUS HIGH-STRENGTH DEFORMED BARS ARE PRESENTED. THE GREATEST FACTOR AFFECTING FATIGUE OF THESE BARS IS THE DEGREE OF SLOPE AT LUG BASES. THE SHAPE OF LUGS WHICH IMPROVE FATIGUE RESISTANCE WITHOUT IMPAIRING BOND IS INDICATED. FURTHER, FATIGUE AND BOND PROPERITES OF VARIOUS DEFORMED BARS, AND CONSEQUENTLY THE LIMITS OF TENSILE STRESS BASED ON FATIGUE OF STEEL, CRACKING OF CONCRETE AND WELDABILITY OF STEEL FOR DESIGN OF REINFORCED CONCRETE BRIDGES ARE DISCUSSED. /RRL/A/

• Supplemental Notes:
  • pp 301-316, 4 FIG, 4 TAB, 1 PHOT, 9 REF
• Corporate Authors:

  Intl Symp Concr Bridge Des Proc /Can

  ,    
• Authors:
  • Kokubu, M
  • Okamura, H
• Publication Date: 1969

Subject/Index Terms

• TRT Terms: Bending; Concrete; Cracking; Deformed bars; Fatigue (Physiological condition); Lugs; Reinforced concrete bridges; Slopes; Steel; Strength of materials; Tension; Testing; Ultimate load design; Welding
• Uncontrolled Terms: Concrete cracking; Tensile stress; Weldability
• Old TRIS Terms: Limits
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208688
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Nov 18 1970 12:00AM