FIBRE REINFORCED CONCRETE IN PURE TORSION AND IN COMBINED BENDING AND TORSION

The paper studies the influence of steel fibres on the torsional and flexural rigidity of concrete beams. Ultimate load tests were carried out on square beams subjected to pure torsion and on rectangular beams subjected to combined bending and torsion. Steel fibres with a length/diameter ratio of 150 were used and the increases in torsional capacity and tensile strength were studied. Fibre reinforced beams were found to have a considerable post-ultimate reserve and pronounced ductility in torsion and in combined bending and torsion. Flexural loads did not cause any reduction in torsional capacity. Satisfactory predictions of ultimate torque were obtained by using sand-heap analogy and a reduced value for the tensile strength of concrete. (a) (TRRL)

• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Narayanan, R
  • Toorani-goloosalar, Z
• Conference:
  • Institution of Civil Engineers, Proceedings, Pt2
• Publication Date: 1979-12

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 987-1001
• Serial:
  • Volume: 67
  • Issue Number: PT2

Subject/Index Terms

• TRT Terms: Beams; Bending; Bending stress; Concrete; Ductility; Fiber reinforced concrete; Fibers; Flexure; Loads; Material reinforcement; Reinforced concrete; Reinforcing materials; Steel; Steel wire; Stiffness; Tensile strength; Tests; Torque; Torsion
• Uncontrolled Terms: Reinforced concrete beams
• ITRD Terms: 3472: Beam; 4755: Concrete; 4557: Fibre; 5567: Load; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 4542: Steel; 6255: Test
• Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00309068
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: Part 2
• Files: ITRD, TRIS
• Created Date: Jul 22 1980 12:00AM