AN INVESTIGATION OF THE ULTIMATE SHEAR STRENGTH OF TWO - WAY CONTINUOUS BRIDGE SLABS SUBJECTED TO CONCENTRATED LOADS

THE SHEAR STRENGTH OF CONTINUOUS TWO-WAY REINFORCED CONCRETE SQUARE SLABS IS INVESTIGATED. MODELS OF THESE SLABS, FORMING PART OF A TWO-LANE TWO-GIRDER BRIDGE, WERE TESTED UNDER A SINGLE CONCENTRATED LOAD. THE ULTIMATE SHEAR STRENGTH OBTAINED IS STUDIED IN RELATION TO REINFORCEMENT PERCENTAGE AND LOCATION OF LOAD. COMPRESSIVE MEMBRANE ACTION IN FIXED TWO-WAY SLABS SUPPORTED BY NON-RIGID EDGE BEAMS IS ALSO STUDIED, AND A METHOD FOR ESTIMATING THE COMPRESSIVE MEMBRANE CONTRIBUTION TO THE ULTIMATE FLEXURAL STRENGTH OF THESE SLABS IS PROPOSED, AND VERIFIED BY A STUDY OF A NUMBER OF SLABS FAILING IN FLEXURE. IT IS SHOWN THAT THE PRESENT DESIGN PROCEDURE FOR BRIDGE SLABS IS TOO CONSERVATIVE AND THAT YIELD LINE METHOD CAN BE SAFELY AND ECONOMICALLY APPLIED TO THE DESIGN OF SUCH SLABS. A MINIMUM REINFORCEMENT PERCENTAGE FOR BRIDGE SLABS IS PROPOSED. /AUTHOR/

• Supplemental Notes:
  • Rept Rr167, 12 PP, APP
• Corporate Authors:

  Ontario Department of Highways

  1201 Wilson Avenue
  Toronto, Ontario M3M 1J8,   Canada 
• Authors:
  • Batchelor, B D
  • Tong, P Y
• Publication Date: 1970-9

Subject/Index Terms

• TRT Terms: Beams; Bridge design; Bridges; Flexural strength; Girder bridges; Loads; Reinforced concrete; Shear strength; Slabs; Structural design; Structural supports; Yield line method
• Uncontrolled Terms: Compressive membrane action; Continuity
• Old TRIS Terms: Supports
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209377
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 7 1971 12:00AM